УСТАНОВКА ТУРБОДЕТАНДЕР-КОМПРЕССОР, СПОСОБ ЕЕ РЕГУЛИРОВАНИЯ И КОНТРОЛЛЕР

Изобретение относится к установке турбодетандер-компрессор, способу ее регулирования и контроллеру. Установка турбодетандер-компрессор содержит детандер, компрессор и контроллер. Детандер выполнен с возможностью расширения поступающего газа и содержит рабочее колесо и первый комплект подвижных впускных направляющих лопаток, прикрепленных к детандеру и выполненных с возможностью регулирования давления поступающего газа. Компрессор выполнен с возможностью сжатия газа, полученного от детандера. Компрессор содержит рабочее колесо, вал и второй комплект подвижных впускных направляющих лопаток, прикрепленных к компрессору и выполненных с возможностью регулирования давления поступающего в компрессор газа. Вал выполнен с обеспечением поддержания и вращения рабочих колес детандера и компрессора. Контроллер присоединен ко второму комплекту подвижных впускных направляющих лопаток и выполнен с возможностью приема данных о скорости вращения вала, давлении и температуре поступающего газа, а также давлении ...

Containment enclosure

Unit for establishing contact between a gas and a liquid for floating platform

Floating hydrocarbon treating plant.

Floating hydrocarbon treating plant comprising a vessel (1) having a hull and a deck (3) and comprising tanks located below the deck for storing hydrocarbons, and a plant for treating hydrocarbons located at the deck (3) of the vessel (1), wherein the plant for treating hydrocarbons includes spaced-apart modules (10, 11, 12, 13), wherein each module (10, 11, 12, 13) comprises related plant equipment mounted on a module floor, wherein the modules (10, 11, 12, 13) rest on closed support girders (20) that extend under the module (10, 11, 12, 13)in a direction perpendicular to the edge (23)of the deck (3), and wherein the module floor is secured to one of the closed support girders.

UNIT FOR ESTABLISHING CONTACT BETWEEN A GAS AND A LIQUID FOR A FLOATING PLATFORM

Floating hydrocarbon treating plant.

Unit for establishing contact between a gas and a liquid for floating platform

Process components, containers, and pipes suitablefor containing and transporting cryogenic tempera ture fluids.

Aromatics and/or heavies removal from a methane-based feed by condensation and stripping

Floating hydrocarbon treating plant.

Floating hydrocarbon treating plant.

Floating hydrocarbon treating plant.

Unit for establishing contact between a gas and a liquid for floating platform

PROZESSKOMPONENTEN, BEHÄLTER UND ROHRE, GEEIGNET ZUM AUFNEHMEN UND TRANSPORTIEREN VON FLUIDEN KRYOGENER TEMPERATUR

DYNAMICALLY REDUCED OPTIMIZATION OF THE CHEMICAL PRODUCTION

PROCEDURE FOR THE CONTROLLING OF A GAS FLOW BETWEEN SEVERAL GAS FLOWS

Process and apparatus for heavy hydrocarbon removal from lean natural gas before liquefaction

Documen4-24/0D/2020 A process is described herein for removing high freeze point hydrocarbons, including benzene compounds, from a mixed feed gas stream. The process involves cooling process streams in one or more heat exchangers and separating condensed compounds in multiple separators to form a methane-rich product gas stream. Select solvent streams from a fractionation train and/or separate solvent streams are employed to lower the freeze point of one or more streams that contain high freeze point hydrocarbons. A corresponding system also is disclosed.

MODULARIZED LNG SEPARATION DEVICE AND FLASH GAS HEAT EXCHANGER

Described herein are methods and systems for the liquefaction of natural gas to produce a LNG product. The methods and systems use an apparatus for separating a flash gas from a liquefied natural gas (LNG) stream to produce a LNG product and recovering refrigeration from the flash gas. The apparatus includes a shell casing enclosing a heat exchange zone comprising a coil wound heat exchanger, and a separation zone. The heat exchange zone is located above and in fluid communication with the separation zone. Flash gas is separated from the LNG product in the separation zone and flows upwards from the separation zone into the heat exchange zone where refrigeration is recovered from the separated flash gas.

Unit for establishing contact between a gas and a liquid for a floating platform

The invention relates to a unit for establishing contact between a liquid and a gas, comprising: a chamber (20) having a vertical axis; a first series of contact sections (5, 7) disposed along the length of the vertical axis of the chamber (20); a second series of contact sections (6, 8) disposed along the length of the vertical axis of the chamber (20), alternated with the contact sections (5, 7) of the first series; and a liquid circulation system (2, 3, 10, 13, 16) designed to circulate a liquid in the contact sections (5, 7) of the first series and in the contact sections (6, 8) of the second series in a separate manner. The invention also relates to a method for establishing contact between a liquid and a gas, used in said unit.

Method for controlling a gas flow between a plurality of gas streams

METHOD FOR OPERATING A CRYOGENIC PLANT

A method for operating a cryogenic plant using an online real-time monitoring and diagnostic system that continually compares actual versus expected plant key performance indicators, alerts operating personnel to any significant performance shortfall, assists in required diagnostics, and suggests corrective actions, preferably using a top-down diagnostic tree methodology that presents calculated key performance indicators to the operator in a manner which logically flows from plant overview to detailed breakdown by plant area and equipment component.

DIVIDING WALL COLUMN WITH A HEAT PUMP

Systems and methods for separating a multi-component flu-id are provided. The method can include introducing a multi-component fluid to a dividing wall column. The multi-component fluid can be heated to provide a first product, a second product, an intermediate distillate, and a process fluid. At least a portion of the first product can be compressed to provide a compressed first product. Heat can be indirectly transferred from the compressed first product to at least a portion of the intermediate distil-late to provide a heated intermediate distillate. The heated intermediate distillate can be recycled to the dividing wall column. The compressed first product can be expanded.

PROCESS INTEGRATION FOR NATURAL GAS LIQUID RECOVERY

This specification relates to operating industrial facilities, for example, crude oil refining facilities or other industrial facilities that include operating plants that process natural gas or recover natural gas liquids.

PROCESS INTEGRATION FOR NATURAL GAS LIQUID RECOVERY

This specification relates to operating industrial facilities, for example, crude oil refining facilities or other industrial facilities that include operating plants that process natural gas or recover natural gas liquids.

SYSTEM AND METHOD FOR SEPARATING NATURAL GAS LIQUID AND NITROGEN FROM NATURAL GAS STREAMS

A system and method for removing nitrogen and producing a high pressure methane product stream and an NGL product stream from natural gas feed streams where at least 90%, and preferably at least 95%, of the ethane in the feed stream is recovered in the NGL product stream. The system and method of the invention are particularly suitable for use with feed streams in excess of 5 MMSCFD and up to 300 MMSCFD and containing around 5% to 80% nitrogen. The system and method preferably combine use of strategic heat exchange between various process streams with a high pressure rectifier tower and the ability to divert all or a portion of a nitrogen rejection unit feed stream to optionally bypass a nitrogen fractionation column to reduce capital costs and operating expenses.

HEATING COMPONENT TO REDUCE SOLIDIFICATION IN A CRYOGENIC DISTILLATION SYSTEM

A method and a system for feeding a feed gas including methane (CH4) and carbon dioxide (CO2) to a cryogenic distillation column are provided herein. The method includes flowing a freeze zone CO2 vapor stream into a freezing section of the column to produce an overhead stream that exits the column. The method includes heating the overhead stream via a heating component to reduce or prevent solidification of the CO2 in the overhead stream.

LIQUID COLLECTION SYSTEM

An apparatus is disclosed for maintaining constant fluid pressure and equalized fluid flow among a plurality of downcomer lines through which liquid from a tower is directed. A substantially annular fluid distribution belt is disposed at the circumference of the tower. The fluid distribution belt collects liquid from the tower. At least two outlets direct liquid from the fluid distribution belt out of the tower and into a corresponding number of downcomer lines disposed external to the tower.

BUBBLE CAP TRAY FOR MELTING SOLIDS AND METHOD FOR USING SAME

An elongated bubble cap tray allows three phases: solid, vapor and liquid, to come in contact at the bottom of a controlled freezing zone and transfer heat and mass amongst themselves. Complete melting of the solid phase may be achieved in this tray, significantly reducing or totally eliminating the need for an external source of energy as well as its associated heat transfer equipment: ...

DISTILLATION PROCESS TO SEPARATE MIXTURES CONTAINING THREE OR MORE COMPONENTS

A technique is set forth to reduce the heat requirement of conventional distilla tion processes which separate feed mixtures containing three or more components. The technique provides a great deal of flexibility in adjusting the temperatures of the required utilities including a scenario where the heat requirement is reduced without a n eed for additional higher temperature (and more costly) heat utility. In this technique, when a liquid bottoms stream (or gaseous overhead stream) containing two or more components is sent from an earlier column to a subsequent column, then a return vapor (or liquid) stream is implemented between the same locations in the two columns.

Einrichtung zur Zerlegung oder Reinigung von Gasgemischen bei tiefen Temperaturen

Verfahren und Einrichtung zur Reinigung und Reinhaltung des Wasserstoff-Kältekreislaufes in Tieftemperaturrektifikationsanlagen

Gastrennanlage

Plant for taking up and transporting a fluid of cryogenic temperature.

КРИОГЕННАЯ СИСТЕМА ДЛЯ УДАЛЕНИЯ КИСЛОТНЫХ ГАЗОВ ИЗ ПОТОКА ГАЗООБРАЗНЫХ УГЛЕВОДОРОДОВ

Представлена система для удаления кислотных газов из потока сырьевого газа. Система содержит криогенную дистилляционную колонну. Криогенная дистилляционная колонна имеет зону регулируемого замораживания, которая принимает холодную распыляемую жидкость, состоящую главным образом из метана. Колонна принимает и затем разделяет поток сырьевого газа на поток газообразного верхнего метанового погона и, по существу, твердый материал, состоящий из диоксида углерода. Система содержит коллекторную тарелку под зоной регулируемого замораживания. Коллекторная тарелка принимает, по существу, твердый материал, когда он осаждается в зоне регулируемого замораживания. Система также имеет фильтр. Фильтр принимает, по существу, твердый материал и затем разделяет его на твердый материал, состоящий в основном из диоксида углерода, и жидкий материал, содержащий метан. Твердый материал может быть нагрет как жидкость и продан, тогда как жидкий материал возвращают в криогенную дистилляционную колонну.

СПОСОБ УДАЛЕНИЯ АЗОТА ИЗ ПОТОКА, СОДЕРЖАЩЕГО ПРЕИМУЩЕСТВЕННО МЕТАН

Предложен способ удаления азота из потока, содержащего преимущественно метан, в процессе сжижения природного газа, включающий в себя стадии, на которых (а) подогревают поток, содержащий преимущественно метан, в метановом экономайзере, размещенном в теплоизолированном кожухе для метана; (б) разделяют подогретый поток, содержащий преимущественно метан, на первую часть и вторую часть; (в) подают первую часть к первому входному отверстию метанового компрессора и вторую часть в блок удаления азота; (г) удаляют азот из второй части подогретого потока, содержащего преимущественно метан, в блоке удаления азота, получая первый поток со сниженной концентрацией азота и поток, обогащенный азотом.

СПОСОБ ИЗВЛЕЧЕНИЯ КОНДЕНСАЦИЕЙ И ОТГОНКОЙ АРОМАТИЧЕСКИХ И/ИЛИ ВЫСОКОМОЛЕКУЛЯРНЫХ УГЛЕВОДОРОДОВ ИЗ СЫРЬЯ НА ОСНОВЕ МЕТАНА И УСТРОЙСТВО ДЛЯ ЕГО ОСУЩЕСТВЛЕНИЯ

METHOD OF STARTING DISTILLATION COLUMN AND SYSTEM FOR ITS REALIZATION

СИСТЕМА ДЛЯ СЖИЖЕННОГО ПРИРОДНОГО ГАЗА (СПГ) С ОТБРАКОВКОЙ ТЁПЛОГО АЗОТА

Предложена система для сжижения природного газа, в которой применяется усовершенствованная система для удаления азота, выполненная с возможностью удаления азота из потока относительно теплого природного газа.

HYDROCARBON GAS PROCESSING

ПЕРЕРАБОТКА УГЛЕВОДОРОДНОГО ГАЗА

Описываются способ и установка для извлечения этана, этилена, пропана, пропилена и более тяжелых компонентов углеводородов из потока газообразных углеводородов в компактной перерабатывающей установке. Газовый поток охлаждается, конденсируется и расширяется под более низким давлением и подается в качестве сырья в устройство абсорбции, расположенное внутри перерабатывающей установки. Поток отгонного конденсата образуется в устройстве абсорбции и направляется в устройство тепломассообмена вовнутрь перерабатывающей установки, освобождаясь от летучих компонентов и при этом охлаждая газовый поток. Потоки отгонного пара образуются в устройстве тепломассообмена и существенно охлаждаются до, по крайней мере, частичной конденсации, образуя остаточный поток пара и конденсированный поток. Количество и температуру указанных сырьевых потоков, направляемых в первое и второе устройства абсорбции, поддерживают в верхней части первого устройства абсорбции достаточными для извлечения из потока основной части ...

CRYOGENIC SYSTEM FOR REMOVING ACID GASSES FROM A HYDROCARBON GAS STREAM

Process Components, Containers and Pipes Suitable For Containing and Transporting Cryogenic Temperature Fluids

Device and method for preparing high-purity liquid methane

METHOD FOR TREATING A FEED GAS STREAM AND PLANT FOR CARRYING OUT SAID METHOD

JOINING OF COMPONENTS FOR CONSTRUCTING A MODULAR APPARATUS FOR EXCHANGE OF MASS AND/OR HEAT EXCHANGE SYSTEM USING A CONSTRUCT

PROCEEDED OF CAPTURE OF CO2 BY CRYO-CONDENSATION

COMPRESSION METHOD AND APPARATUS FOR A CAPTURE APPARATUS CO2 BY LOW TEMPERATURE SEPARATION

Dans un procédé de compression d'un gaz à séparer dans une unité de séparation de CO2 à basse température par au moins une étape de condensation partielle et/ou au moins une étape de distillation, le gaz à séparer (3, 7, 11) est à composition variable et/ou à débit variable, le gaz à séparer est comprimé dans un compresseur (9) pour produire un gaz comprimé et on modifie la pression d'entrée du gaz à séparer rentrant dans le compresseur en fonction de la teneur en CO2 et/ou du débit du gaz à séparer afin de réduire les variations de débit volumique du gaz à séparer rentrant dans le compresseur.

One-piece assembly for a heat transfer device

액화 전 린 천연 가스로부터 중질 탄화수소를 제거하기 위한 방법 및 장치

... 혼합된 공급물 가스 스트림으로부터 벤젠 화합물을 포함하는 고 동결점 탄화수소를 제거하기 위한 공정이 본원에 기재된다. 상기 공정은 하나 이상의 열교환기에서 공정 스트림을 냉각하고 다중 분리기에서 응축된 화합물을 분리하여 메탄-농후 생성물 가스 스트림을 형성하는 것을 포함한다. 분별 트레인으로부터 선택된 용매 스트림 및/또는 개별적인 용매 스트림이 고 동결점 탄화수소를 함유하는 하나 이상의 스트림의 동결점을 낮추기 위하여 이용된다. 상응하는 시스템이 또한 개시된다.

PROCESSO PARA A CONDENSACAO PARCIAL DE UMA MISTURA GASOSA DE HIDROCARBONETOS

HYDROCARBON GAS PROCESSING

Method For Cooling A Cryogenic Exchange Line

The invention relates to a method for the cryogenic separation, the cooling or the liquefaction of a fluid using an exchange line, that comprises extracting from said exchange line at least one dual phase fluid (11), separating said dual phase fluid into at least one vapour fraction (4) and one liquid fraction (5) in a phase separator (40), expanding at least one portion of the liquid fraction (5) using a first expansion means (60, 90), reinjecting, reheating and at least partially vaporising said expanded liquid fraction in the exchange line, the first expansion means being a valve, wherein during the cooling of said exchange line, at least a fraction of the fluid extracted from the exchange line (2, 4 or 5) and/or from the phase separator (40) is expanded in second expansion means (61, 71, 81, 91) parallel to the first expansion means (6), while during a normal operation, the second expansion means is essentially closed.

Floating hydrocarbon treating plant

A floating hydrocarbon treating plant containing a vessel having a hull and a deck and having tanks located below the deck for storing hydrocarbons, and a plant for treating hydrocarbons located at the deck of the vessel is provided. The plant for treating hydrocarbons includes spaced-apart modules, wherein each module has related plant equipment mounted on a module floor, and the modules rest on closed support girders that extend under the module in a direction perpendicular to the edge of the deck, and wherein the module floor is secured to one of the closed support girders.

Heat-exchanger trays and system using same

A novel distillation tray useful as a horizontally disposed internal for a distillation column, especially a cryogenic distillation column, has a set of parallel horizontal pipes spaced from one another to support a pool of down-flowing liquid and to provide passage of up-flowing vapor through the spaces. At each end the pipes are connected to and communicate with a manifold. A number of these trays in a vertically tiered array are connected to one another as an assembly in the column. The assembly of the trays is provided by the manifolds at the two ends of the sets of pipes. In one construction the manifold for one set of pipes has an upward vertical extension that is also one manifold of the adjacent upper tray, while the other manifold for the first set of pipes has a downward vertical extension that is also one manifold of the adjacent lower tray. In another construction the manifold at one end of a set of pipes is connected to a pipe extending upwardly to the manifold of the adjacent ...

System and method for separating natural gas liquid and nitrogen from natural gas streams

A system and method for removing nitrogen and producing a high pressure methane product stream and an NGL product stream from natural gas feed streams where at least 90%, and preferably at least 95%, of the ethane in the feed stream is recovered in the NGL product stream. The system and method of the invention are particularly suitable for use with feed streams in excess of 5 MMSCFD and up to 300 MMSCFD and containing around 5% to 80% nitrogen. The system and method preferably combine use of strategic heat exchange between various process streams with a high pressure rectifier tower and the ability to divert all or a portion of a nitrogen rejection unit feed stream to optionally bypass a nitrogen fractionation column to reduce capital costs and operating expenses.

TWO-STAGE LIQUID DISTRIBUTION DEVICE FOR MASS TRANSFER COLUMN

A two-stage liquid distribution device for use within an internal region of a mass transfer column to distribute liquid to an underlying mass transfer bed. The two-stage liquid distribution device includes a lower distributor with a lower parting box and lower troughs and an upper distributor with an upper parting box and upper troughs. The lower and upper parting boxes and troughs are enclosed to allow a liquid head in a lower downpipe section and an upper downpipe section that feed liquid to the lower distributor and the upper distributor to cause pressurization of liquid within the lower and upper parting boxes and troughs. The pressurization makes the lower and upper distributors less susceptible to rocking motion of the mass transfer column and reduces any maldistribution of liquid discharged from the lower and upper troughs to the mass transfer bed.

Bolted collector for vapor liquid contacting vessel

A liquid collector for use in a vapor liquid contacting vessel such as a distillation column having bolted or otherwise fastened components wherein liquid leakage is ameliorated by a collector tray divided into three overlapping levels including a center sump, deck plates and riser hats.

ПЕРЕРАБОТКА УГЛЕВОДОРОДНОГО ГАЗА

Раскрыты способ и установка для компактного перерабатывающего узла для улучшения извлечения C2(или C3) и более тяжелых углеводородных компонентов из углеводородного газового потока. Предпочтительный способ разделения углеводородного газового потока в целом включает получение по меньшей мере по существу конденсированного первого потока и охлажденного второго потока, расширение обоих потоков до более низкого давления и подачу этих потоков в ректификационную колонну. В раскрытом способе и установке пар верхнего погона из колонны направляют в абсорбционное устройство и устройство тепло- и массопереноса внутри перерабатывающего узла. Часть выходящего пара из перерабатывающего узла сжимают до более высокого давления, охлаждают и по существу конденсируют в теплообменном устройстве внутри перерабатывающего узла, затем расширяют до более низкого давления и подают в устройство тепло- и массопереноса, чтобы обеспечить охлаждение. Конденсированную жидкость из абсорбционного устройства подают в колонну ...

МОДУЛЬНОЕ УСТРОЙСТВО ДЛЯ ОТДЕЛЕНИЯ СПГ И ТЕПЛООБМЕННИК ГАЗА МГНОВЕННОГО ИСПАРЕНИЯ

FIELD: gas industry. SUBSTANCE: invention relates to gas industry and can be used for liquefaction of natural gas to produce finished LNG. In said methods and systems there used is device for separation of flash gas from flow of liquefied natural gas (LNG) to produce finished LNG and recovery of cold from flash gas. Proposed device comprises casing accommodating heat exchange zone accommodating coiled heat exchanger and separation zone. Heat exchange zone is located above the separation zone and communicates with it by fluid medium. Flash gas is separated from the ready LNG in the separation zone and flows upward from the separation zone into the heat exchange zone, where the cold is recovered from the separated flash gas. EFFECT: technical result is improved compactness. 15 cl, 10 dwg, 3 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 716 099 C1 (51) МПК F25J 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК (21)(22) Заявка: 2019113508, 06.05.2019 (24) Дата начала отсчета срока действия патента: Дата регистрации: 05.03.2020 (73) Патентообладатель(и): ЭР ПРОДАКТС ЭНД КЕМИКАЛЗ, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: 11.05.2018 US 15/977,535 2 7 1 6 0 9 9 R U Адрес для переписки: 129090, Москва, ул. Большая Спасская, д. 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) МОДУЛЬНОЕ УСТРОЙСТВО ДЛЯ ОТДЕЛЕНИЯ СПГ И ТЕПЛООБМЕННИК ГАЗА МГНОВЕННОГО ИСПАРЕНИЯ (57) Реферат: Изобретение относится к газовой размещен витой теплообменник, и зона промышленности и может быть использовано разделения. Зона теплообмена расположена выше для сжижения природного газа с получением зоны разделения и сообщается по текучей среде готового СПГ. В указанных способах и системах с ней. Газ мгновенного испарения отделяется от используется устройство для отделения газа готового СПГ в зоне разделения и течет вверх из мгновенного испарения от потока сжиженного зоны разделения в зону теплообмена, где холод ...

СПОСОБ РЕГУЛИРОВАНИЯ РАСХОДА ГАЗА МЕЖДУ МНОЖЕСТВОМ ПОТОКОВ ГАЗА

... 1. Способ регулирования потока газа между одним или большим количеством входящих потоков (12, 14) и одним или большим количеством выходящих потоков (16, 18, 20) с помощью узла соединения (22), включающий, по меньшей мере, стадии: ! (a) определения массового расхода, по меньшей мере, одного входящего потока (12, 14) для получения одной или большего числа соответствующих измеренных величин массового расхода входящих потоков (потока); ! (b) определения массового расхода, по меньшей мере, одного выходящего потока (16, 18, 20) для получения одной или большего числа соответствующих измеренных величин массового расхода выходящих потоков (потока); ! (c) определение смещенной величины дисбаланса массового расхода путем сравнения совокупности данных всех измеренных величин массового расхода входящих потоков на стадии (а) с совокупностью данных всех измеренных величин массового расхода выходящих потоков стадии (b) и добавление составляющей смещения для получения смещенной величины дисбаланса массового ...

ПЕРЕРАБОТКА УГЛЕВОДОРОДНОГО ГАЗА

Method and apparatus for treating a hydrocarbon stream and method of cooling a hydrocarbon stream

Method and apparatus for treating a mixed hydrocarbon feed stream (10), such as a natural gas stream. The mixed hydrocarbon feed stream (10) is expanded into a mixed-phase hydrocarbon stream (20), which is separated the to provide at least a light overhead stream (30) and a heavy bottom stream (50). The light overhead stream (30) is compressed in one or more first compressors (16) to provide one or more first compressed light streams (40) and further compressed in one or more second compressors (22) to provide one or more further compressed light streams (60). One or more first compressor recycle lines (42) extend around the or each first compressor (16), and one or more second compressor recycle lines (32) having one or more in-line coolers (34) extend around the or each second compressor (22). The method and apparatus may be used in a method of cooling an initial hydrocarbon stream (100).

Floating hydrocarbon treating plant

CARBON DIOXIDE CLEANING TO THE USE IN THE BREWERY.

Apparatus and method for demethanization and method of retrofitting an installation for liquefying gas

Method and apparatus for treating a hydrocarbon stream and method of cooling a hydrocarbon stream

Method and system of controlling a temperature within a melt tray assembly of a distillation tower

A method and system of controlling a temperature within a melt tray assembly of a distillation tower. The method may include determining a melt tray fluid composition of a melt tray fluid, determining a melt tray fluid temperature of the melt tray fluid, determining if the melt tray fluid temperature is within an expected melt tray fluid temperature range for the melt tray fluid composition, decreasing the melt tray fluid temperature if the melt tray fluid temperature is greater than an expected melt tray fluid temperature range upper limit, increasing the melt tray fluid temperature if the melt tray fluid temperature is less than an expected melt tray fluid temperature range lower limit, and maintaining the melt tray fluid temperature if the melt tray fluid temperature is within the expected melt tray fluid temperature range.

Method and system for separating fluids in a distillation tower

A method and system for separating fluids in a distillation tower. The method may include feeding a stream to the distillation tower, wherein the stream includes carbon dioxide, reducing a carbon dioxide concentration of the stream received by the rectifier section by feeding a first cryogenic fluid to the controlled freeze zone section and accumulating rectifier section stream in at least one of a holding vessel and a sump of the rectifier section, and terminating reducing the carbon dioxide concentration when the carbon dioxide concentration of the stream travelling from the controlled freeze zone section to the rectifier section is less than or equal to a maximum carbon dioxide concentration. The first cryogenic fluid may comprise a substantially carbon-dioxide-free fluid.

Method for producing pure nitrogen from a natural gas stream containing nitrogen

The invention relates to a method for liquefying a natural gas stream, comprising the following steps: a): cooling the input gas stream in order to obtain a liquefied natural gas stream at a temperature T1; b): injecting the stream resulting from step a) into a denitrogenation column at a pressure P2 and a temperature T2 lower than T1 in order to produce, at the bottom of said column, a denitrogenated liquefied natural gas stream and, at the top, a stream of nitrogen-enriched steam; c): condensing the stream of nitrogen-enriched steam resulting from step b) in a heat exchanger; d): injecting the stream resulting from step c) into a phase-separating pot so as to produce a liquid stream and a nitrogen-enriched gas stream; e): injecting the gas stream resulting from step d) into a distillation column at the pressure P2 producing, at the top, a nitrogen-enriched stream containing less than 1% of methane and, at the bottom, a liquid stream containing less than 10% of nitrogen; characterised ...

ENHANCED OPERATION OF LNG FACILITY EQUIPPED WITH REFLUXED HEAVIES REMOVAL COLUMN

Improved methodology for starting up a LNG facility employing a refluxed heavies removal column. The improved methodology involves varying the temperature of the feed to 5 the heavies removal column between start-up and normal operation. This allows a larger amount of the stream produced from the top of the heavies removal column during start-up to be used to more rapidly start up the LNG facility.

HYDROCARBON GAS PROCESSING

A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the tower overhead vapor is directed to an absorbing means and a heat and mass transfer means inside a processing assembly. A portion of the outlet vapor from the processing assembly is compressed to higher pressure, cooled and substantially condensed in a heat exchange means inside the processing assembly, then expanded to lower pressure and supplied to the heat and mass transfer means to provide cooling. Condensed liquid from the absorbing means is fed to the tower.

SOLVENT INJECTION AND RECOVERY IN A LNG PLANT

Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a solvent is injected into a feed of natural gas at a solvent injection point. A mixed feed is produced from a dispersal of the solvent into the feed of natural gas. The mixed feed contains heavy components. A chilled feed is produced by chilling the mixed feed. The chilled feed includes a vapor and a condensed liquid. The condensed liquid contains a fouling portion of the heavy components condensed by the solvent during chilling. The liquid containing the fouling portion of the heavy components is separated from the vapor. The vapor is directed into a feed chiller heat exchanger following separation of the liquid containing the fouling portion of the heavy components from the vapor, such that the vapor being directed into feed chiller heat exchanger is free of freezing components.

PROCESS AND APPARATUS FOR PRODUCING CARBON MONOXIDE

The present invention relates to a cold box cycle which allows for independent control of the heat supplied for reboilers associated with the separation columns. More specifically, the invention relates to the tight control of the hydrogen removal separation, thus avoiding the possibility of excess reboiling in this separation. Optimal reboiling also results in a lower temperature of the hydrogen depleted liquid from this separation. As this stream is used to provide a portion of the cooling at the cold end of the primary heat exchanger, lower temperatures facilitate cooling of the incoming syngas feed, reducing carbon monoxide (CO) losses into the crude hydrogen stream from the high pressure separator. Lower CO in the crude hydrogen allows for smaller hydrogen purification equipment.

PROCESS INTEGRATION FOR NATURAL GAS LIQUID RECOVERY

This specification relates to operating industrial facilities, for example, crude oil refining facilities or other industrial facilities that include operating plants that process natural gas or recover natural gas liquids.

METHOD AND SYSTEM OF CONTROLLING A TEMPERATURE WITHIN A MELT TRAY ASSEMBLY OF A DISTILLATION TOWER

A method and system of controlling a temperature within a melt tray assembly of a distillation tower. The method may include determining a melt tray fluid composition of a melt tray fluid, determining a melt tray fluid temperature of the melt tray fluid, determining if the melt tray fluid temperature is within an expected melt tray fluid temperature range for the melt tray fluid composition, decreasing the melt tray fluid temperature if the melt tray fluid temperature is greater than an expected melt tray fluid temperature range upper limit, increasing the melt tray fluid temperature if the melt tray fluid temperature is less than an expected melt tray fluid temperature range lower limit, and maintaining the melt tray fluid temperature if the melt tray fluid temperature is within the expected melt tray fluid temperature range.

HYDROCARBON GAS PROCESSING

A process and an apparatus are disclosed for the recovery of heavier hydrocarbon components from a hydrocarbon gas stream in a compact processing assembly. The gas stream is cooled, condensed and expanded to lower pressure and supplied as a feed to an absorbing means inside the processing assembly. A distillation liquid stream is collected from the absorbing means and directed into a heat and mass transfer means inside the processing assembly strip out its volatile components while cooling the gas stream. Distillation streams are collected from heat and mass transfer means and cooled sufficiently to at least partially condense it, forming a residual vapor stream and a condensed stream. The quantities and temperatures of the feeds are at a temperature whereby the major portions of the desired components are recovered in the stripped distillation liquid stream.

UNIT FOR ESTABLISHING CONTACT BETWEEN A GAS AND A LIQUID FOR A FLOATING PLATFORM

The invention relates to a unit for establishing contact between a liquid and a gas, comprising: a chamber (20) having a vertical axis; a first series of contact sections (5, 7) disposed along the length of the vertical axis of the chamber (20); a second series of contact sections (6, 8) disposed along the length of the vertical axis of the chamber (20), alternated with the contact sections (5, 7) of the first series; and a liquid circulation system (2, 3, 10, 13, 16) designed to circulate a liquid in the contact sections (5, 7) of the first series and in the contact sections (6, 8) of the second series in a separate manner. The invention also relates to a method for establishing contact between a liquid and a gas, used in said unit.

CRYOGENIC SYSTEM FOR REMOVING ACID GASES FROM A HYDROCARBON GAS STREAM, WITH REMOVAL OF HYDROGEN SULFIDE

A system for removing acid gases from a raw gas stream includes an acid gas removal system (AGRS) and a sulfurous components removal system (SCRS). The acid gas removal system receives a sour gas stream and separates it into an overhead gas stream comprised primarily of methane, and a bottom acid gas stream comprised primarily of carbon dioxide. The sulfurous components removal system is placed either upstream or downstream of the acid gas removal system. The SCRS receives a gas stream and generally separates the gas stream into a first fluid stream comprising hydrogen sulfide, and a second fluid stream comprising carbon dioxide. Where the SCRS is upstream of the AGRS, the second fluid stream also includes primarily methane. Where the SCRS is downstream of the AGRS, the second fluid stream is principally carbon dioxide. Various types of sulfurous components removal systems may be utilized.

CRYOGENIC SYSTEM FOR REMOVING ACID GASES FROM A HYDROCARBON GAS STREAM, WITH REMOVAL OF HYDROGEN SULFIDE

A system for removing acid gases from a raw gas stream includes an acid gas removal system (AGRS) and a sulfurous components removal system (SCRS). The acid gas removal system receives a sour gas stream and separates it into an overhead gas stream comprised primarily of methane, and a bottom acid gas stream comprised primarily of carbon dioxide. The sulfurous components removal system is placed either upstream or downstream of the acid gas removal system. The SCRS receives a gas stream and generally separates the gas stream into a first fluid stream comprising hydrogen sulfide, and a second fluid stream comprising carbon dioxide. Where the SCRS is upstream of the AGRS, the second fluid stream also includes primarily methane. Where the SCRS is downstream of the AGRS, the second fluid stream is principally carbon dioxide. Various types of sulfurous components removal systems may be utilized.

SYSTEM AND METHOD FOR COORDINATION AND OPTIMIZATION OF LIQUEFIELD NATURAL GAS (LNG) PROCESSES

A method includes, controlling a first process using a first process control system. The method also includes controlling a second process using a second process control system. The method further includes controlling the first and second process control systems together. In addition, the method includes optimizing at. least one process objective using both the first and second process control systems. The first process can be a natural gas liquids production process, and the second process can be a liquefied natural gas production process. The process objective could include at least one of : profit, natural gas liquids quantity, natural gas liquids quality, liquefied natural gas quantity, and liquefied natural gas quality.

METHOD AND SYSTEM OF MODIFYING A LIQUID LEVEL DURING START-UP OPERATIONS

The present disclosure provides a method for separating a feed stream in a distillation tower. The method includes operating a controlled freeze zone section in a distillation tower that separates a feed stream at a temperature and pressure at which the feed stream forms a solid in the controlled freeze zone section, wherein the feed stream includes a first contaminant; maintaining a melt tray assembly in the controlled freeze zone section; introducing the feed stream to the controlled freeze zone section; and accumulating a liquid in the melt tray assembly until the liquid is at a predetermined liquid level in the controlled freeze zone section, by: feeding a second contaminant to the controlled freeze zone section; and adding the second contaminant to the melt tray assembly, wherein the liquid comprises the second contaminant.

METHOD AND SYSTEM FOR SEPARATING FLUIDS IN A DISTILLATION TOWER

A method and system for separating fluids in a distillation tower. The method may include feeding a stream to the distillation tower, wherein the stream includes carbon dioxide, reducing a carbon dioxide concentration of the stream received by the rectifier section by feeding a first cryogenic fluid to the controlled freeze zone section and accumulating rectifier section stream in at least one of a holding vessel and a sump of the rectifier section, and terminating reducing the carbon dioxide concentration when the carbon dioxide concentration of the stream travelling from the controlled freeze zone section to the rectifier section is less than or equal to a maximum carbon dioxide concentration. The first cryogenic fluid may comprise a substantially carbon-dioxide-free fluid.

METHOD AND DEVICE FOR DETECTING MOVING OBJECTS IN A GAS STREAM DURING CRYOGENIC GAS SEPARATION

CRYOGENIC SYSTEM FOR REMOVAL OF ACID GASES FROM FLOW OF GASEOUS HYDROCARBONS WITH REMOVAL OF HYDROGEN SULFIDE

METHOD OF EXTRACTING BY CONDENSATION AND DISTILLATION OF AROMATIC AND/OR HIGH MOLECULAR HYDROCARBONS FROM RAW MATERIAL BASED ON METHANE AND DEVICE FOR ITS REALIZATION

СКЛАДОВИЙ ПРОЦЕС, ЄМНОСТІ ТА ТРУБНА КОЛОНА ДЛЯ ЗБЕРІГАННЯ І ТРАНСПОРТУВАННЯ КРІОГЕННОЇ РІДИНИ ВИЗНАЧЕНОЇ ТЕМПЕРАТУРИ

Запропоновано елементи технологічного процесу, контейнери і труби, що виконані з надвисокоміцних низьколегованих сталей, що містять менше 9 ваг. %. нікелю і які мають міцність на розрив понад 830 МПа (120 кг на квадратний дюйм) і температури в’язкокрихкого переходу (DBTT) нижче приблизно -73°С (-100°F).

BLOWING TO INTERMEDIATE PRESSURE IN CRYOGENIC DISTILLATION

PLATE UNIT FOR COLLECTION AND MELTING, INTENDED FOR DISTILLATION COLUMN

СПОСОБ УДАЛЕНИЯ ТВЕРДОГО ДИОКСИДА УГЛЕРОДА

В настоящем изобретении разработан способ удаления твердого диоксида углерода из криогенного оборудования, который включает стадии введения потока, содержащего этан, в криогенное оборудование, для того чтобы превратить твердый диоксид углерода в жидкость, и в результате получить жидкую смесь этана и диоксида углерода; и удаления жидкой смеси этана и диоксида углерода из криогенного оборудования. В частности этот способ может быть использован на установке сжижения природного газа (СПГ), в которой криогенное оборудование содержит СПГ, и способ включает стадии удаления СПГ из указанного криогенного оборудования; введения потока, содержащего этан, для того чтобы превратить твердый диоксид углерода в жидкость, и в результате получить жидкую смесь этана и диоксида углерода; и удаления жидкой смеси этана и диоксида углерода из криогенного оборудования. В результате этого эффективно очищается загрязненное оборудование для получения СПГ.

Separation method using a column with a corrugated cross structure packing for separating a gaseous mixture

The present invention relates to a method for the cryogenic separation of a gas including as main components at least two components selected from the group comprising hydrogen, carbon monoxide, nitrogen and methane, using at least one distillation column having a corrugated-cross structure packing (K02/K03) and/or at least one adsorption column having a corrugated-cross structure packing (K01), with at least one section for exchanging heat and/or matter between a descending liquid and an ascending gas, the S parameter of said section being in a range of 50*10<-6> to 70000*10<-6>, more particularly 150*10<-6> to 1500*10<-6>, where S=T*m/sigma, T being the shear stress at the liquid/vapour interface (kgm<-1>S<-2>), m being the thickness of the liquid film flowing on the packing (m), and s being the surface tension at the liquid/vapour interface (kgs<-2>).

PROCESS OF SETTING IN COLD Of a CRYOGENIC LINE Of EXCHANGE.

INSTALLATION OF SETTING IN CONTACT BETWEEN A GAS AND A LIQUID FOR FLOATING SUPPORT

ELEMENT Of an INSTALLATION OF SEPARATION BY DISTILLATION At low temperature, INSTALLATION INCORPORATING SUCH an ELEMENT AND PROCESS OF SEPARATION IN SUCH an INSTALLATION

Un élément d'une installation de séparation par distillation à basse température comprend une première enveloppe (1) d'isolation thermique contenant au moins une enceinte vide (S1, S2), mais ne contenant aucune colonne de distillation et contenant également des moyens (M1) pour introduire un fluide dans l'enceinte, des moyens (M3) pour soutirer un liquide de cuve de l'enceinte et des moyens (M2) pour soutirer un gaz de la tête de l'enceinte, l'enceinte vide étant adapté à séparer des phases d'un fluide diphasique.

METHOD AND APPARATUS FOR CRYOGENICALLY SEPARATING A MIXTURE COMPRISING AT LEAST CARBON MONOXIDE, HYDROGEN AND NITROGEN

method and device to control the more current of entrance and one or more current gas flow between one or of exit through a conjunction

Cryogenic system for removing acid gases from a hydrocarbon gas stream, with removal of hydrogen sulfide

A system for removing acid gases from a raw gas stream includes an acid gas removal system (AGRS) and a sulfurous components removal system (SCRS). The acid gas removal system receives a sour gas stream and separates it into an overhead gas stream comprised primarily of methane, and a bottom acid gas stream comprised primarily of carbon dioxide. The sulfurous components removal system is placed either upstream or downstream of the acid gas removal system. The SCRS receives a gas stream and generally separates the gas stream into a first fluid stream comprising hydrogen sulfide, and a second fluid stream comprising carbon dioxide. Where the SCRS is upstream of the AGRS, the second fluid stream also includes primarily methane. Where the SCRS is downstream of the AGRS, the second fluid stream is principally carbon dioxide. Various types of sulfurous components removal systems may be utilized.

Unit for establishing contact between a gas and a liquid for a floating platform

A unit for establishing contact between a liquid and a gas includes: a chamber having a vertical axis; a first series of contact sections disposed along the length of the vertical axis of the chamber; a second series of contact sections disposed along the length of the vertical axis of the chamber, alternated with the contact sections of the first series; and a liquid circulation system designed to circulate a liquid in the contact sections of the first series and in the contact sections of the second series in a separate manner.

Method and arrangement for expanding a gas stream comprising carbon dioxide

The present disclosure relates to a method and an arrangement for expanding a gas stream comprising carbon dioxide, CO 2 . The method includes: removing CO 2 from a process gas to produce a CO 2 lean gas stream comprising residual CO 2 ; monitoring a temperature of the gas stream downstream of an expander; controlling a pressure of the gas stream downstream of the expander by means of a pressure controller; and overriding the pressure controller when the temperature downstream of the expander is below a predefined minimum temperature; whereby deposition of solid CO 2 from the residual CO 2 in the gas stream is avoided. The disclosure also relates to a gas cleaning system and a power plant, such as an oxy-combustion power plant, associated with the arrangement.

METHOD AND APPARATUS FOR SEPARATION AT SUBAMBIENT TEMPERATURE

A method for separating a gas mixture at subambient temperature, in which a gas mixture is sent to a heat-insulated chamber, cooled and separated in a column, and placed inside the chamber so as to produce at least two fluids, each of which is enriched with a component from the gas mixture. At least one fluid from the method can be heated inside the chamber or vaporized via heat exchange with at least one heating member including at least one element having magnetocaloric properties and built into a circuit configured to conduct a magnetic flux. The element is alternatingly in thermal contact with a cold source, made up of the fluid to be heated, and a hot source, made up of a source hotter than the fluid to be heated, and variation in the magnetic flux via the magnetocaloric effect generates electrical and/or mechanical energy. 115-. (canceled)16. A process for separating a gas mixture at subambient temperature , wherein the process comprises the steps of:sending a gas mixture to a thermally insulated chamber under conditions effective for cooling and separating the gas mixture within a column that is placed inside the thermally insulated chamber, so as to produce at least two fluids, each of which is enriched with a component of the gas mixture;heating at least one of the two fluids inside the thermally insulated chamber by heat exchange with at least one heating member, wherein the at least one heating member comprises at least one element having magnetocaloric properties and integrated into a circuit configured to conduct a magnetic flux, said at least one element being alternatingly in thermal contact with a cold source made up of the fluid to be heated and a hot source made up of the surrounding environment or another source that is hotter than the fluid to be heated; andgenerating electrical and/or mechanical energy from the variation in the magnetic flux via the magnetocaloric effect,wherein at least one of the two fluids to be heated being at least one part ...

METHOD FOR TREATING A FEED GAS STREAM AND ASSOCIATED INSTALLATION

The method includes cooling and liquefying a feed gas stream, separating a stream obtained from the feed gas stream, and recovering a treated gas stream and a natural gas liquid stream. The method further includes compressing the treated gas stream in order to form a compressed treated gas stream, and fractionating the natural gas liquid stream into a plurality of hydrocarbon fractions (). The method additionally includes withdrawing from the compressed treated gas stream, of a recycle stream, and reintroducing the recycle stream without cooling into the feed gas stream, into the cooled feed gas stream, or into a stream obtained from the cooled feed gas stream upstream of an expander. 1. A feed gas treating method comprising:supplying a feed gas stream and conveying the feed gas stream into a natural gas liquids extractor; cooling the feed gas stream,', 'expanding in an expander the cooled feed gas stream,', 'separating, in a separation column, at least one stream obtained from the cooled feed gas stream, and', 'recovering after separation, a treated gas stream and a natural gas liquid stream;, 'within the extractor'}compressing the treated gas stream in at least one compressor to form a compressed treated gas stream;fractionating, in a fractionator, the natural gas liquid stream into a plurality of hydrocarbon cuts;withdrawing a recycle stream in the compressed treated gas stream; the feed gas stream upstream of the extraction unit,', 'the cooled feed gas stream, or', 'a stream obtained from the cooled feed gas stream, upstream of the expander., 'reintroducing without cooling the recycle stream into at least one of2. The method according to claim 1 , comprising adjusting a flow rate of the reintroduced recycle stream as a function of the natural gas liquid content in the feed gas stream.3. The method according to claim 1 , wherein the molar flow rate of the reintroduced recycle stream is greater than 10% of the molar flow rate of the feed gas stream prior to the ...

METHOD AND DEVICE FOR GENERATING A GAS PRODUCT

The invention relates to a method and also a device for producing a gas product, wherein a first gas stream is combined with a second gas stream and the first gas stream that is present at a lower output pressure than the second gas stream is fed to a mechanical compressor in order to be compressed to the preset pressure of the gas product. It is characteristic in this case that the pressure of the first gas stream is elevated using a gas jet compressor arranged upstream of the mechanical compressor, to which gas jet compressor at least a part of the second gas stream is fed as pumping medium. 1. A method for producing a gas product , wherein a first gas stream is combined with a second gas stream and the first gas stream that is present at a lower output pressure than the second gas stream is fed to a mechanical compressor in order to be compressed to the preset pressure of the gas product , characterized in that the pressure of the first gas stream is elevated using a gas jet compressor arranged upstream of the mechanical compressor , to which gas jet compressor at least a part of the second gas stream is fed as pumping medium.2. The method according to claim 1 , characterized in that the part of the second gas stream that is used as pumping medium is fed directly to the gas jet compressor with substantially the output pressure of the second gas stream or subsequently to a pressure elevation carried out using the mechanical compressor.3. The method according to claim 1 , characterized in that the pressure of the first gas stream is elevated using the gas jet compressor on the output pressure thereof to a value which is greater than or equal to the suction pressure of the mechanical compressor.4. The method according to claim 1 , characterized in that the method is used in the production of a carbon monoxide product in which a synthesis gas predominantly consisting of hydrogen and carbon monoxide is fractionated in a cryogenic separation process claim 1 , wherein a ...

Method and device for separating air by cryogenic distillation

Method for separating air by cryogenic distillation, wherein air is compressed in a compressor and is subsequently sent to a heat exchanger, with the air cooled in the exchanger being sent to a check valve downstream of the heat exchanger and subsequently to a turbine, the valve being positioned so that air from a short-circuiting duct cannot return to the exchanger from the compressor.

NATURAL GAS LIQUID FRACTIONATION PLANT WASTE HEAT CONVERSION TO SIMULTANEOUS POWER AND POTABLE WATER USING ORGANIC RANKINE CYCLE AND MODIFIED MULTI-EFFECT-DISTILLATION SYSTEMS

Certain aspects of natural gas liquid fractionation plant waste heat conversion to simultaneous power and potable water using organic Rankine cycle and modified multi-effect distillation systems can be implemented as a system that includes two heating fluid circuits thermally coupled to two sets of heat sources of a NGL fractionation plant. The system includes a power generation system that comprises an organic Rankine cycle (ORC), which includes (i) a working fluid that is thermally coupled to the first heating fluid circuit to heat the working fluid, and (ii) a first expander configured to generate electrical power from the heated working fluid. The system includes a MED system thermally coupled to the second heating fluid circuit and configured to produce potable water using at least a portion of heat from the second heating fluid circuit. A control system actuates control valves to selectively thermally couple the heating fluid circuit to a portion of the heat sources of the NGL fractionation plant. 1. A system , comprising:a first heating fluid circuit thermally coupled to a first plurality of heat sources of a natural gas liquid (NGL) fractionation plant;a second heating fluid circuit thermally coupled to at least one second heat source of the NGL fractionation plant;a power generation system that comprises an organic Rankine cycle (ORC), the ORC comprising (i) a working fluid that is thermally coupled to the first heating fluid circuit to heat the working fluid, and (ii) a first expander configured to generate electrical power from the heated working fluid;a multi-effect-distillation (MED) system thermally coupled to the second heating fluid circuit and configured to produce potable water using at least a portion of heat from the second heating fluid circuit; anda control system configured to actuate a first set of control valves to selectively thermally couple the first heating fluid circuit to at least a portion of the first plurality of heat sources of the ...

METHODS FOR PROVIDING REFRIGERATION IN NATURAL GAS LIQUIDS RECOVERY PLANTS

A process and plant for natural gas liquids (NGL) recovery includes a main heat exchanger, a cold gas/liquid separator, a separation or distillation column, and an overhead gas heat exchanger. A pressurized residue gas generated from an overhead gas stream removed the top of the separation or distillation column is expanded and used as a cooling medium in the overhead gas heat exchanger and the main heat exchanger. The expanded residue gas, used as a cooling medium, is then compressed up to a pressure to be combined with the overhead stream from the separation or distillation column. 1. A process for natural gas liquids (NGL) recovery comprising:introducing a natural gas feed stream into a main heat exchanger wherein the feed stream is cooled and partially condensed,introducing the partially condensed feed stream into a cold gas/liquid separator wherein the partially condensed feed stream is separated into a liquid fraction and a gaseous fraction,introducing the liquid fraction into a separation or distillation column,separating the gaseous fraction into a first portion and a second portion,cooling the first portion of the gaseous fraction in an overhead heat exchanger by indirect heat exchange with an overhead gaseous stream removed from the top of the separation or distillation column, and introducing the cooled and partially condensed first portion of the gaseous fraction into the separation or distillation column at a point above the introduction point of the liquid fraction into the separation or distillation column,expanding the second portion of the gaseous fraction and introducing the expanded second portion of the gaseous fraction into the separation or distillation column at a point above the introduction point of the liquid fraction into the separation or distillation column,removing a C2+ or C3+ liquid product stream (NGL) from the bottom of the separation or distillation column,removing the overhead gaseous stream from the top of the separation or ...

APPARATUS AND METHOD FOR SEPARATION OF AIR BY CRYOGENIC DISTILLATION

An apparatus for separation of air by cryogenic distillation comprising: a system of columns; a first turbine; a warm compressor coupled to the first turbine; a second turbine; a cold compressor coupled to the second turbine; a heat exchanger; means for sending air cooled in the heat exchanger at an intermediate temperature of the heat exchanger to the cold compressor; means for sending expanded air from the second turbine to the system of columns; means for sending air compressed in the cold compressor to an intermediate point of the heat exchanger and then at least in part to the system of columns via a first valve; means for sending air compressed in the cold compressor to the inlet of the first turbine via a second valve without passing through the heat exchanger, wherein the means for sending air compressed in the cold compressor to the inlet of the first turbine via the second valve without passing through the heat exchanger is also connected to the inlet of the first turbine; means for sending a fraction of air cooled in the heat exchanger to an intermediate temperature of the latter to the first turbine; means for sending expanded air from the first turbine to the system of columns; and a bypass line provided with an expansion valve configured to send air from the cold compressor to the system of columns without passing through the heat exchanger. 1. An apparatus for separation of air by cryogenic distillation comprising:a system of columns;a first turbine;a warm compressor coupled to the first turbine;a second turbine;a cold compressor coupled to the second turbine;a heat exchanger;means for sending air cooled in the heat exchanger at an intermediate temperature of the heat exchanger to the cold compressor;means for sending expanded air from the second turbine to the system of columns;means for sending air compressed in the cold compressor to the heat exchanger and then at least in part to the system of columns via a first valve;means for sending air ...

Hydrocarbon Gas Processing

A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C(or C) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the tower overhead vapor is directed to an absorbing means and a heat and mass transfer means inside a processing assembly. A portion of the outlet vapor from the processing assembly is compressed to higher pressure, cooled and substantially condensed in a heat exchange means inside the processing assembly, then expanded to lower pressure and supplied, to the heat and mass transfer means to provide cooling. Condensed liquid from the absorbing means is fed to the tower. 1. In a process for the separation of a gas stream containing methane , Ccomponents , Ccomponents , and heavier hydrocarbon components into a volatile residue gas fraction and a relatively less volatile traction containing a major portion of said Ccomponents , Ccomponents , and heavier hydrocarbon components or said Ccomponents and heavier hydrocarbon components , in which process '(b) said substantially condensed first stream is expanded to a lower pressure whereby it is further cooled, and thereafter supplied at a top feed position on a distillation column that produces at least an overhead vapor stream and a bottom liquid stream;', '(a) said gas stream is treated in one or more heat exchange steps and at least one division step to produce at least a first stream that has been cooled under pressure to condense substantially all of it, and at least a second stream that has been cooled under pressure;'}(c) said cooled second stream is expanded to said lower pressure, and thereafter supplied to said distillation column at a mid-column ...

Hydrocarbon Gas Processing

A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C(or C) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the tower overhead vapor is directed to an absorbing means and a heat and mass transfer means inside a processing assembly. A portion of the outlet vapor from the processing assembly is compressed to higher pressure, cooled and substantially condensed in a heat exchange means inside the processing assembly, then expanded to lower pressure and supplied to the heat and mass transfer means to provide cooling. Condensed liquid from the absorbing means is fed to the tower. 1. In a process for the separation of a gas stream containing methane , Ccomponents , Ccomponents , and heavier hydrocarbon components into a volatile residue gas fraction and a relatively less volatile fraction containing a major portion of said Ccomponents , Ccomponents , and heavier hydrocarbon components or said Ccomponents and heavier hydrocarbon components , in which process(a) said gas stream is treated in one or more heat exchange steps and at least one division step to produce at least a first stream that has been cooled under pressure to condense substantially all of it, and at least a second stream that has been cooled under pressure;(b) said substantially condensed first stream is expanded to a lower pressure whereby it is further cooled, and thereafter supplied at a top feed position on a distillation column that produces at least an overhead vapor stream and a bottom liquid stream;(c) said cooled second stream is expanded to said lower pressure, and thereafter supplied to said distillation column at a mid-column feed ...

Hydrocarbon Gas Processing

A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C(or C) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the tower overhead vapor is directed to an absorbing means and a heat and mass transfer means inside a processing assembly. A portion of the outlet vapor from the processing assembly is compressed to higher pressure, cooled and substantially condensed in a heat exchange means inside the processing assembly, then expanded to lower pressure and supplied to the heat and mass transfer means to provide cooling. Condensed liquid from the absorbing means is fed to the tower. 1. In a process for the separation of a gas stream containing methane , Ccomponents , Ccomponents , and heavier hydrocarbon components into a volatile residue gas fraction and a relatively less volatile fraction containing a major portion of said Ccomponents , Ccomponents , and heavier hydrocarbon components or said Ccomponents and heavier hydrocarbon components , in which process(a) said gas stream is treated in one or more heat exchange steps and at least one division step to produce at least a first stream that has been cooled under pressure to condense substantially all of it, and at least a second stream that has been cooled under pressure;(b) said substantially condensed first stream is expanded to a lower pressure whereby it is further cooled, and thereafter supplied at a top feed position on a distillation column that produces at least an overhead vapor stream and a bottom liquid stream;(c) said cooled second stream is expanded to said lower pressure, and thereafter supplied to said distillation column at a mid-column feed ...

PROCESS AND APPARATUS FOR PRODUCING CARBON MONOXIDE

The present invention relates to a cold box cycle which allows for independent control of the heat supplied for reboilers associated with the separation columns. More specifically, the invention relates to the tight control of the hydrogen removal separation, thus avoiding the possibility of excess reboiling in this separation. Optimal reboiling also results in a lower temperature of the hydrogen depleted liquid from this separation. As this stream is used to provide a portion of the cooling at the cold end of the primary heat exchanger, lower temperatures facilitate cooling of the incoming syngas feed, reducing carbon monoxide (CO) losses into the crude hydrogen stream from the high pressure separator. Lower CO in the crude hydrogen allows for smaller hydrogen purification equipment. 1. A method for the separation of carbon monoxide and hydrogen from a syngas feedstock , comprising:cooling and partially condensing the syngas feedstock containing carbon monoxide and hydrogen in a primary heat exchanger to produce a cooled and partially condensed syngas feed stream;separating the cooled and partially condensed syngas feed stream in a first hydrogen rich vapor stream and a first carbon monoxide rich liquid stream in a high pressure separator;feeding the first carbon monoxide rich liquid stream to a hydrogen removal column operating at a pressure lower than the high pressure separator, wherein a second hydrogen rich vapor stream is separated from a second carbon monoxide rich stream;splitting said second carbon monoxide rich stream into two portions wherein a first portion of the second carbon monoxide rich stream is at least partially vaporized in the primary heat exchanger and providing a second portion of the second carbon monoxide rich stream wherein both portions are introduced into a carbon monoxide/methane column for separating purified carbon monoxide vapor stream from a methane rich liquid stream;separating a portion of the cooled syngas feedstock to provide ...

PRETREATMENT OF NATURAL GAS PRIOR TO LIQUEFACTION

Method and system for removing high freeze point components from natural gas. Feed gas is cooled in a heat exchanger and separated into a first vapor portion and a first liquid portion. The first liquid portion is reheated using the heat exchanger and separated into a high freeze point components stream and a non-freezing components stream. A portion of the non-freezing components stream may be at least partially liquefied and received by an absorber tower. The first vapor portion may be cooled and received by the absorber tower. An overhead vapor product which is substantially free of high freeze point freeze components and a bottoms product liquid stream including freeze components and non-freeze components are produced using the absorber tower. 1. A method for removing high freeze point components from natural gas , comprising:cooling a feed gas in a heat exchanger;separating the feed gas into a first vapor portion and a first liquid portion in a separation vessel;reheating the first liquid portion using the heat exchanger;separating the reheated first liquid portion into a high freeze point components stream and a non-freezing components stream;at least partially liquefying the non-freezing components stream;receiving, at an upper feed point of an absorber tower, the at least partially liquefied non-freezing component stream;receiving, at a lower feed point of the absorber tower, the first vapor portion of the separated feed gas that has been cooled;producing, using the absorber tower, an overhead vapor product which is substantially free of high freeze point freeze components and a bottoms product liquid stream including freeze components and non-freeze components; andreheating the overhead vapor product from the absorber tower using the heat exchanger.2. The method of claim 1 , wherein the absorber tower includes one or more mass transfer stages.3. The method of claim 1 , further comprising compressing the reheated overhead vapor product using an expander- ...

System and Method for Natural Gas Liquid Production with Flexible Ethane Recovery or Rejection

A system and method for processing an NGL product stream from a natural gas feed stream in either an ethane retention or ethane rejection mode utilizing heat exchange of particular process streams. In ethane rejection mode, there are preferably two stages of heat exchange between the feed stream and a first separator bottoms stream and a side stream withdrawn from a fractionation tower is cooled through heat exchange with both the fractionation tower and second separator overhead streams, and optionally with an external refrigerant, resulting in 5-15% ethane and at least 97% propane recovery. In ethane retention mode, a portion of the feed stream and portions of a first separator overhead and bottoms streams are preferably separately cooled through heat exchange with other process streams, including the entireties of a recycled residue gas and fractionation column overhead streams, resulting in around 99% ethane and around 100% propane recovery. 1. A system for processing a feed stream comprising methane , ethane , propane , and other components in either an ethane rejection mode or ethane retention mode to produce an NGL product stream and a residue gas stream , system comprising:a first separator wherein the feed stream is separated into a first overhead stream and a first bottoms stream;a fractionation column wherein the first overhead stream and first bottoms stream are separated into a second overhead stream and a second bottoms stream, wherein the residue gas stream comprises the second overhead stream and the NGL product stream comprises the second bottoms stream;a first heat exchanger for cooling at least a first portion of the feed stream prior to the first separator through heat exchange with a first set of other streams;a second heat exchanger for warming the second overhead stream prior to the first heat exchanger through heat exchange with a second set of other streams;wherein the first set of other streams comprises (1) the first bottoms stream, the ...

PROCESS FOR THE PRODUCTION OF DILUTE ETHYLENE

Processes and systems for recovery of a dilute ethylene stream are illustrated and described. More specifically, embodiments disclosed herein relate to processes and systems for separation of a dilute ethylene stream from an offgas or other vapor streams, where the ultra-low temperature refrigeration for the desired separations is provided by the offgas itself, and only moderately-low temperature externally supplied propylene refrigerants (for example, at −40° C. to 15° C.) are necessary. 1. A process for producing a dilute ethylene stream , the process comprising:{'sub': '3+', 'cooling and partially condensing a feedstock comprising hydrogen, methane, ethane, ethylene, and C hydrocarbons;'}separating the cooled and partially condensed feedstock into a vapor feed stream and a liquid feed stream, wherein the liquid feed stream comprises a portion of the ethylene contained in the feedstock;{'sub': '3+', 'separating the vapor feed stream in a deethanizer to recover an overhead stream and a bottoms product stream comprising the Chydrocarbons;'}separating the liquid feed stream into a first vapor fraction and a first liquid fraction;cooling and partially condensing the overhead stream via indirect heat exchange with a refrigerant comprising at least a portion of the first liquid fraction.2. The process of claim 1 , further comprising separating the cooled and partially condensed overhead stream into a liquid reflux stream and an overhead vapor dilute ethylene product stream.3. The process of claim 1 , further comprising separating the first liquid fraction claim 1 , after the indirect heat exchange claim 1 , into a second vapor fraction and a second liquid fraction.4. The process of claim 3 , further comprising compressing the first vapor fraction and the second vapor fraction to form a compressed refrigerant stream.5. The process of claim 4 , further comprising cooling the compressed refrigerant stream via indirect heat exchange with the second liquid fraction and ...

System and Method for Separating Natural Gas Liquid and Nitrogen from Natural Gas Streams

A system and method for removing nitrogen and producing a high pressure methane product stream and an NGL product stream from natural gas feed streams where at least 90%, and preferably at least 95%, of the ethane in the feed stream is recovered in the NGL product stream. The system and method of the invention are particularly suitable for use with feed streams in excess of 5 MMSCFD and up to 300 MMSCFD and containing around 5% to 80% nitrogen. The system and method preferably combine use of strategic heat exchange between various process streams with a high pressure rectifier tower and the ability to divert all or a portion of a nitrogen rejection unit feed stream to optionally bypass a nitrogen fractionation column to reduce capital costs and operating expenses. 1. A system for removing nitrogen from a feed stream comprising nitrogen , methane , ethane , and other components to produce a methane product stream , an NGL product stream , and a nitrogen vent stream the system comprising:a first separator wherein the feed stream is separated into a first overhead stream and a first bottoms stream;a first fractionating column wherein the first overhead stream is separated into a second overhead stream and a second bottoms stream;an expander for expanding the first overhead stream prior to the first fractionating column;a second fractionating column wherein the first bottoms stream and second bottoms stream are separated into a third overhead stream and a third bottoms stream;a third fractionating column wherein at least a first NRU feed stream separated into a fourth overhead stream and a fourth bottoms stream;a first heat exchanger for cooling a first portion of the feed stream prior to the first separator and cooling a first portion of the second overhead stream prior to the third fractionating column through heat exchange with the fourth bottoms stream and a recycle refrigerant stream;a second heat exchanger for cooling the first portion of the second overhead ...

UNSATURATED HYDROCARBON PRODUCTION APPARATUS

An unsaturated hydrocarbon production apparatus includes: a light collecting device configured to collect sunlight, and to convert the sunlight into solar heat; and a heating furnace configured to heat a raw material gas containing at least any one selected from the group consisting of methane and hydrogen, methane and oxygen, and ethane with the solar heat generated by the light collecting device to 700° C. or more and 2,000° C. or less. 1. An unsaturated hydrocarbon production apparatus , comprising:a light collecting device configured to collect sunlight, and to convert the sunlight into solar heat; anda heating furnace configured to heat a raw material gas containing at least any one selected from the group consisting of methane and hydrogen, methane and oxygen, and ethane with the solar heat generated by the light collecting device to 700° C. or more and 2,000° C. or less.2. The unsaturated hydrocarbon production apparatus according to claim 1 , further comprising a cooling unit configured to rapidly cool a generated gas generated in the heating furnace to 600° C. or less.3. The unsaturated hydrocarbon production apparatus according to claim 1 , wherein the heating furnace accommodates a catalyst for accelerating a reaction of the raw material gas to any one or both of ethylene and acetylene.4. The unsaturated hydrocarbon production apparatus according to claim 1 , further comprising a preheating unit configured to preheat the raw material gas with heat released from the heating furnace.5. The unsaturated hydrocarbon production apparatus according to claim 4 , further comprising a first heat exchange unit configured to subject the generated gas generated in the heating furnace and the raw material gas to heat exchange claim 4 ,wherein the raw material gas subjected to heat exchange in the first heat exchange unit is introduced into the preheating unit.6. The unsaturated hydrocarbon production apparatus according to claim 4 , further comprising a second heat ...

METHOD FOR PRODUCING PURE NITROGEN FROM A NATURAL GAS STREAM CONTAINING NITROGEN

A process for liquefying a natural gas feed stream including cooling a feed gas stream to obtain a liquefied natural gas stream; introducing the liquefied natural gas stream into a deazotization column to produce a liquefied natural gas stream and a nitrogen-enriched vapor stream; at least partially condensing at least part of the nitrogen-enriched vapor stream to produce a two-phase stream; introducing the two-phase stream into a phase-separating vessel to produce a first liquid stream and a first nitrogen-enriched gas stream; introducing at least part of the nitrogen-enriched gas stream into a distillation column thereby producing a second nitrogen-enriched stream containing less than 1 mol % of methane and a second liquid stream containing less than 10 mol % of nitrogen; wherein at least part of the liquefied natural gas stream is used to cool the at least part of the nitrogen-enriched vapor stream in said heat exchanger. 113.-. (canceled)15. The process of claim 14 , wherein the natural gas feed stream and a second coolant mixture are cooled by indirect heat exchange with at least one first coolant mixture to obtain a cooled natural gas and a second cooled coolant mixture claim 14 , and the cooled natural gas is then condensed and cooled by indirect heat exchange with at least the second cooled coolant mixture to obtain a liquefied natural gas.16. The process of claim 14 , wherein the second nitrogen-enriched stream contains less than 100 molar ppm of methane and the second liquid stream contains less than 4 mol % of nitrogen.172. The process of claim 14 , wherein the liquefied natural gas stream is cooled in a reboiling means of said deazotization column down to the temperature T.182. The process of claim 14 , wherein the stream cooled to the temperature T is expanded in an expansion means before being introduced into the deazotization column.19. The process of claim 14 , wherein at least part of the first liquid stream is used as reflux at the top of the ...

INTEGRATED METHODS AND CONFIGURATIONS FOR PROPANE RECOVERY IN BOTH ETHANE RECOVERY AND ETHANE REJECTION

A natural gas liquids (NGL) plant, the NGL plant comprising an absorber configured to provide an absorber overhead and an absorber bottoms, a stripper configured to produce a stripper overhead and a stripper bottoms, wherein the stripper is positioned downstream from the absorber and fluidly connected therewith such that the absorber bottoms can be introduced into the stripper, and a multi-pass heat exchanger configured to provide at least one reflux stream to the absorber, wherein the absorber and stripper are configured, in an ethane rejection arrangement, to provide the stripper overhead to a top of the absorber, and wherein the absorber and stripper are configured, in an ethane recovery arrangement, to provide the stripper overhead to a bottom of the absorber. 1. A natural gas liquids (NGL) plant , the NGL plant comprising:an absorber configured to provide an absorber overhead and an absorber bottoms;a stripper configured to produce a stripper overhead and a stripper bottoms, wherein the stripper is positioned downstream from the absorber and fluidly connected therewith such that the absorber bottoms can be introduced into the stripper; anda multi-pass heat exchanger configured to provide at least one reflux stream to the absorber wherein the multi-pass heat exchanger is configured, in the ethane recovery arrangement, to provide at least two reflux streams to the absorber,wherein the absorber and stripper are configured, in an ethane rejection arrangement, to provide the stripper overhead to a top of the absorber, and wherein the absorber and stripper are configured, in an ethane recovery arrangement, to provide the stripper overhead to a bottom of the absorber.2. (canceled)3. The NGL plant of claim 1 , wherein the stripper is configured claim 1 , in the ethane recovery arrangement claim 1 , as a demethanizer to provide a stripper bottoms comprising less than 1 vol % methane claim 1 , and the stripper is configured claim 1 , in the ethane rejection arrangement ...

METHODS AND SYSTEMS FOR REMOVING NITROGEN FROM NATURAL GAS

Methods and systems for producing a product natural gas employing a natural gas liquids (NGL) recovery unit followed by removing nitrogen in a nitrogen rejection unit (NRU) operatively connected with the NGL recovery unit by a pressure management sub-system (PMSS). In one embodiment, the PMSS includes a first conduit fluidly connecting the top of a demethanizer column (or an existing conduit connected to the top of the demethanizer) to a separator, a second conduit fluidly connecting the separator to a pump, the pump connected to a distillation column in the NRU by a third conduit, in another embodiment, the PMSS includes a first conduit fluidly connecting an NGL expander to a separator, allowing natural gas vapors and nitrogen to be fed to the NRU column through a second conduit. Alternatively, the PMSS allows mixture from the NGL recovery unit expander to be fed directly via the first conduit to the NRU distillation column. 1. A system comprising:(a) a natural gas liquids (NGL) recovery unit;(b) a nitrogen rejection unit (NRU); and (i) a demethanizer column overhead to one or more heat exchangers and then to a separator,', '(ii) the separator to a pump, the pump having a pump outlet;', '(iii) the pump outlet with a lower section of an NRU distillation column;', '(iv) the NRU distillation column bottoms to an expansion valve;', '(v) the expansion valve with the one or more heat exchangers;', '(vi) the separator overhead to a point of the fifth conduit downstream of the expansion valve and upstream of the one or more heat exchangers; and', '(vii) the point of the fifth conduit to the one or more heat exchangers and then to an NGL recovery unit heat exchanger network., '(c) a pressure management sub-system (PMSS) operatively and fluidly connecting the NGL recovery unit and the NRU, the PMSS comprising a set of conduits, individual members of the set of conduits fluidly connecting2. The system of wherein the separator and the pump are configured so that the ...

Liquid Collection System

An apparatus is disclosed for maintaining constant fluid pressure and equalized fluid flow among a plurality of downcomer lines through which liquid from a tower is directed. A substantially annular fluid distribution belt is disposed at the circumference of the tower. The fluid distribution belt collects liquid from the tower. At least two outlets direct liquid from the fluid distribution belt out of the tower and into a corresponding number of downcomer lines disposed external to the tower.

SYSTEMS AND METHODS FOR PRODUCTION AND SEPARATION OF HYDROGEN AND CARBON DIOXIDE

The present disclosure relates to systems and methods useful for providing one or more chemical compounds in a substantially pure form. In particular, the systems and methods can be configured for separation of carbon dioxide from a process stream, such as a process stream in a hydrogen production system. As such, the present disclosure can provide systems and method for production of hydrogen and/or carbon dioxide. 1. A process for separating carbon dioxide (CO) from a process stream comprising COand one or more further components , the process comprising:{'sub': '2', 'providing the process stream at a pressure such that a partial pressure of the COin the process stream is at least 15 bar;'}{'sub': '2', 'drying the process stream sufficiently so that a dew point of the process stream comprising the COis reduced to a temperature of about −20° C. or less;'}{'sub': '2', 'cooling the process stream in at least one heat exchanger to provide the process stream comprising the COas a two phase stream;'}expanding the two phase stream so as to reduce the temperature of the two phase stream to a temperature that is within about 15° C. of a freezing point of the two phase stream; and{'sub': '2', 'separating the two phase stream to provide a vapor stream enriched with at least one of the one or more further components and to provide a liquid stream that is enriched with the CO.'}2. The process of claim 1 , wherein the drying comprises passage of the process stream comprising the COthrough a desiccant-packed bed.3. The process of claim 1 , wherein the cooling comprises cooling the process stream against at least a portion of the liquid stream that is enriched with the CO.4. The process of claim 3 , wherein the cooling comprises cooling the process stream in a first heat exchanger and in a second heat exchanger.5. The process of claim 4 , wherein the cooling comprises cooling the process stream in the first heat exchanger against a first portion of the liquid stream that is ...

Conduit seal assembly

A conduit seal assembly includes an outer conduit having a first end with a first opening and a second end, opposite the first end, with a second opening. A first seal is positioned in the first opening for resisting a first temperature, and a second seal is positioned in the second opening for resisting a second temperature less than the first temperature. The first and second seals define a cavity and provide an air-tight seal of the cavity, and the assembly includes a monitoring assembly configured to sense a characteristic in the cavity.

ELEMENT FOR CONSTRUCTION OF A MASS- AND/OR HEAT-EXCHANGE DEVICE, ASSEMBLY OF TWO ELEMENTS AND EXCHANGE METHOD USING AN ASSEMBLY

A stackable modular element comprises a parallelepipedal caisson, the caisson comprising at least one layer of thermal insulation of thickness less than one-third of the width of the caisson, the layer of insulation covering at least the lateral and frontal faces of the caisson and surrounding at least one chamber having a parallelepipedal volume within the caisson, the chamber containing at least one body of material that permits the exchange of mass and/or of heat, the body being parallelepipedal in shape and filling at least part of the chamber, the chamber having an opening on the upper face and/or an opening on the lower face to allow fluid to be transferred to the body from outside the element and/or from the body to outside the element. 115-. (canceled)16. A modular stackable element for construction of a device for exchange of mass and/or heat comprisinga parallelepipedal box having a length, a width and a height, the upper and lower faces of the box being defined by the length and the width of the box,', 'the two opposite vertical end faces of the box being defined by the length and the height of the box, and', 'the two opposite vertical lateral faces of the box being defined by the width and the height of the box,, 'the box comprising opposite horizontal upper and lower faces, two opposite vertical end faces and two opposite vertical lateral faces,'} the layer of insulation covering at least the lateral and end faces of the box, and', 'the layer of insulation surrounding at least one chamber of parallelepipedal volume inside the box,', the at least one chamber having opposite horizontal upper and lower faces,', 'the upper face and/or the lower face of the at least one chamber being at least partially open,', 'two opposite vertical end faces and two opposite vertical lateral faces, the upper and lower faces of the at least one chamber being defined by the length and the width of the chamber,', 'the two end faces of the at least one chamber by the length and ...

METHOD TO DETECT TUBE LEAKAGE IN SHELL AND TUBE THERMOSIPHON REBOILERS

A method to continuously monitor for tube leakage in a shell and tube thermosiphon reboiler for heating feedstock in a fractionating column includes: determining the column is in service by continuously monitoring an input flow of the feedstock into the column; determining the reboiler is inactive by continuously monitoring an output valve of tube-side heating fluid from the reboiler; determining the reboiler is losing the heating fluid by continuously monitoring an output flow of the heating fluid from the reboiler; determining the reboiler is heat exchanging by continuously monitoring a temperature difference between input and output flows of shell-side bottoms fluid with the column; and determining the tube leakage in the reboiler is taking place when the column is determined to be in service, the reboiler is determined to be inactive, the reboiler is determined to be losing the heating fluid, and the reboiler is determined to be heat exchanging. 1. An automated method of detecting tube leakage in a shell and tube thermosiphon reboiler used to drive a fractionating column , the method comprising:controlling, by a control circuit using process data, a fractionating process in the fractionating column using the shell and tube thermosiphon reboiler;continuously receiving, by the control circuit, first and second data of the process data from respective first and second devices for monitoring different aspects of an input flow of feedstock into the fractionating column;continuously determining, by the control circuit using the received first and second data, that the column is in service or not in service;continuously receiving, by the control circuit, third and fourth data of the process data from respective third and fourth devices for monitoring different aspects of an output flow of tube-side heating fluid from the reboiler;continuously determining, by the control circuit using the received third data, that the shell and tube thermosiphon reboiler is inactive or ...

OXYGEN BACKUP METHOD AND SYSTEM

A method and backup system for backing up a supply oxygen in an air separation plant in which during normal operation, a stream of oxygen-rich liquid is pumped through a main flow path, extending from a surge tank to a heat exchanger, to deliver an oxygen product. The surge tank receives the oxygen-rich liquid from a bottom region of the lower pressure column of the plant. Additionally, during normal operations, a stream of the oxygen-rich liquid is also introduced to a reserve storage tank through a backup flow path. During a transient operation, where the air separation plant has ceased operation, the surge tank is isolated and liquid is pumped from the surge tank through an auxiliary flow path to an auxiliary vaporizer to continue the supply of the oxygen product and the surge tank is replenished with oxygen-rich liquid previously stored in the reserve storage tank. 1. A method of backing up a supply oxygen in an air separation plant , said method comprising:pumping a liquid oxygen stream composed of an oxygen-rich liquid, resulting from indirect heat exchange between downcoming liquid of a lower pressure column and nitrogen-rich vapor column overhead of a higher pressure column of the air separation plant, to produce a pumped liquid oxygen stream and heating the pumped liquid oxygen stream to produce the supply of the oxygen; feeding streams of the oxygen-rich liquid to a surge tank and a reserve storage tank of larger volume than the surge tank and situated more remotely from the lower pressure column than the surge tank, at least on an intermittent basis, so that the oxygen rich liquid is accumulated in the surge tank and the oxygen-rich liquid is stored within the reserve storage tank as a backup supply; and', 'heating the pumped liquid oxygen stream within a heat exchanger used in cooling at least a portion of the air to a temperature suitable for the cryogenic rectification thereof within the air separation plant, thereby to produce the supply of the oxygen ...

METHOD FOR SEPARATING A SYNTHESIS GAS

A method for separating a synthesis gas containing carbon monoxide and hydrogen including compressing a flow of synthesis gas received from a source of synthesis gas in a compressor, purifying the compressed synthesis gas in a purification unit to purify it of water and/or carbon dioxide, cooling the compressed and purified flow of synthesis gas, separating the cooled flow of synthesis gas by washing and/or distillation at a cryogenic temperature and optionally by adsorption in a separating unit, and producing at least the following three gases in the separating unit: a carbon monoxide-enriched gas, a hydrogen-enriched gas, a residual gas containing carbon monoxide and hydrogen that is less pure with respect to carbon monoxide than the carbon monoxide-enriched gas and less pure with respect to hydrogen than the hydrogen-enriched gas. 115.-. (canceled)16. A method for separating a synthesis gas containing carbon monoxide and hydrogen comprising:i) compressing a flow of synthesis gas received from a source of synthesis gas in a compressor,ii) purifying the compressed synthesis gas in a purification unit to purify it of water and/or carbon dioxide,iii) cooling the compressed and purified flow of synthesis gas,iv) separating the cooled flow of synthesis gas by washing and/or distillation at a cryogenic temperature and optionally by adsorption in a separating unit, andv) producing at least the following three gases in the separating unit: a carbon monoxide-enriched gas, a hydrogen-enriched gas, a residual gas containing carbon monoxide and hydrogen that is less pure with respect to carbon monoxide than the carbon monoxide-enriched gas and less pure with respect to hydrogen than the hydrogen-enriched gas and optionally also a methane-enriched gas, and/or a nitrogen-enriched gas, andvi) sending at least one part of each of the following gases downstream of the source, only if the flow of synthesis gas received from the source and sent to the compressor is below a threshold ...

CRYOGENIC LIQUID SAMPLER

A cryogenic liquid sampler is provided. The sampler includes an inner volume and a useful internal length, a cryogenic liquid inlet conduit in fluid connection with an inlet valve, a weir tube in fluid connection with the inlet valve, wherein the weir tube comprises at least one weir hole, wherein the weir tube extends a predetermined distance into the inner volume, a cryogenic liquid outlet conduit in fluid connection with inner volume and in fluid connection with an outlet valve, and a purge tube in fluid connection with the outlet valve. 1. A cryogenic liquid sampler comprising:a sampler vessel comprising an inner volume and a useful internal length,a cryogenic liquid inlet conduit in fluid connection with an inlet valve,a weir tube in fluid connection with the inlet valve, wherein the weir tube comprises at least one weir hole, wherein the weir tube extends a predetermined distance into the inner volume,a cryogenic liquid outlet conduit in fluid connection with inner volume and in fluid connection with an outlet valve, anda purge tube in fluid connection with the outlet valve.2. The cryogenic liquid sampler of claim 1 , further comprising a pressure indicator in fluid connection with the inner volume.3. The cryogenic liquid sampler of claim 1 , wherein the weir tube has an outside diameter of D claim 1 , wherein the at least one weir hole has a generally circular shape and a diameter of D claim 1 , and wherein D/Dis between about ¼ and about ½.4. The cryogenic liquid sampler of claim 1 , wherein the weir tube has an outside diameter of D claim 1 , wherein the at least one weir hole has a generally rectangular shape claim 1 , a height of H claim 1 , a width of Wand wherein H/Dis between about ⅓ and about ¾ claim 1 , and wherein W/Dis between about ⅓ and about ¾.5. The cryogenic liquid sampler of claim 1 , wherein the predetermined distance is between about ¼ and ½ of the useful internal length.6. The cryogenic liquid sampler of claim 1 , wherein the sampler ...

Systems and methods for automated startup of an air separation plant

A request to initiate startup of an air separation plant may be received, and, in response to receiving the request, startup information that identifies a sequence of steps to be automatically executed to start up the air separation plant is retrieved. Each step may be associated with a component of the air separation plant, and may be associated with an action and a set of permissives corresponding to the action. The set of permissives for each action may specify one or more parameters for controlling the execution of the corresponding action. After retrieving the startup information, the system may automatically initiate execution of the sequence of steps, and may monitor the execution of each of the steps. The system may determine, based on the monitoring, whether to modify a parameter specified by one of the permissives corresponding to an executed action.

PROCESS AND APPARATUS FOR HEAVY HYDROCARBON REMOVAL FROM LEAN NATURAL GAS BEFORE LIQUEFACTION

A process is described herein for removing high freeze point hydrocarbons, including benzene compounds, from a mixed feed gas stream. The process involves cooling process streams in one or more heat exchangers and separating condensed compounds in multiple separators to form a methane-rich product gas stream. Select solvent streams from a fractionation train and/or separate solvent streams are employed to lower the freeze point of one or more streams that contain high freeze point hydrocarbons. A corresponding system also is disclosed. 1. A process for removing high freeze point hydrocarbons , including benzene compounds , from a mixed feed gas stream , comprising:cooling the mixed feed gas stream in a first heat exchanger to condense at least a portion of the C3, C4 and C5 components and high freeze point hydrocarbons,separating the condensed C3, C4, C5 components and high freeze point hydrocarbons in a first separator to form a first liquid stream and a first gas stream,cooling the first gas stream in a second heat exchanger to condense at least a portion of the first gas stream,separating the condensed portion of the first gas stream in a second separator to form a methane-rich second gas stream as a top stream and a second liquid stream,feeding the first and second liquid streams to a first fractionator, and removing methane gas in a top stream and a third liquid stream as a bottom stream,removing a methane-rich product gas stream downstream from the top of the second separator,fractionating the third liquid stream in a fractionation train to obtain a recycle stream comprising at least one of C3 and components and C4 components, and a high freeze point hydrocarbon stream, andfeeding the recycle stream comprising at least one of C3 components and C4 components to the process at a location upstream from the first fractionator to lower the freeze point of the stream at the location where the recycle stream is introduced.2. The process of claim 1 , wherein the ...

Accumulation and Melt Tray Assembly for a Distillation Tower

The disclosure includes techniques associated with a collector tray assembly for a cryogenic distillation tower disposed below a slurry mix zone and above a lower distillation zone, wherein the collector tray assembly comprises a deck at a lower end of the slurry mix zone, and wherein the deck comprises at least one vapor riser configured to pass the vapor from the lower distillation zone into the slurry mix zone, wherein the vapor riser comprises a substantially vertical heat transfer section configured to pass the vapor substantially upwards through the slurry mix zone, and a vapor outlet section comprising at least one vapor outlet, wherein the vapor outlet section is below the heat transfer section. 1. A cryogenic distillation tower system for separating acid gases from hydrocarbons in a raw gas stream , comprising:a controlled freezing zone configured to separate the raw gas stream into an overhead methane gas stream and a substantially solid material comprised of precipitated carbon dioxide;a lower distillation zone configured to receive a bottoms stream comprising acid gases in liquid phase from the controlled freezing zone, and further configured to pass a vapor separated from the acid gases, wherein the acid gas comprises carbon dioxide, hydrogen sulfide, ethane, propane, butane, hydrogen sulfide, aromatic hydrocarbons, or combinations thereof, in substantially liquid phase;a slurry mix zone below the controlled freezing zone configured to house a liquid bath, and wherein the slurry mix zone is configured to receive the substantially solid material from the controlled freezing zone; and a substantially vertical heat transfer section configured to pass the vapor substantially upwards through the slurry mix zone; and', 'a vapor outlet section comprising at least one vapor outlet, wherein the vapor outlet section is below the heat transfer section., 'at least one vapor riser configured to pass the vapor from the lower distillation zone into the slurry mix zone ...

PROCESS INTEGRATION FOR NATURAL GAS LIQUID RECOVERY

This specification relates to operating industrial facilities, for example, crude oil refining facilities or other industrial facilities that include operating plants that process natural gas or recover natural gas liquids. 1. A natural gas liquid recovery system comprising:a cold box comprising a plate-fin heat exchanger comprising a plurality of compartments, the cold box configured to transfer heat from a plurality of hot fluids in the natural gas liquid recovery system to a plurality of cold fluids in the natural gas liquid recovery system; and a primary refrigerant comprising a first mixture of hydrocarbons;', 'a low pressure (LP) refrigerant separator in fluid communication with the cold box, the LP refrigerant separator configured to receive a second portion of the primary refrigerant and configured to separate phases of the second portion of the primary refrigerant into a LP primary refrigerant liquid phase and a LP primary refrigerant vapor phase, the LP refrigerant separator configured to provide at least a portion of the LP primary refrigerant liquid phase to the cold box; and', 'a high pressure (HP) refrigerant separator in fluid communication with the cold box, the HP refrigerant separator configured to receive a first portion of the primary refrigerant and configured to separate phases of the first portion of the primary refrigerant into a HP primary refrigerant liquid phase and a HP primary refrigerant vapor phase, the HP refrigerant separator configured to provide at least a portion of the HP primary refrigerant liquid phase to the cold box., 'a refrigeration system configured to receive heat through the cold box, the refrigeration system comprising2. The natural gas liquid recovery system of claim 1 , wherein the plurality of hot fluids comprises a feed gas to the natural gas liquid recovery system claim 1 , the feed gas comprising a second mixture of hydrocarbons.3. The natural gas liquid recovery system of claim 2 , wherein the primary refrigerant ...

Process integration for natural gas liquid recovery

This specification relates to operating industrial facilities, for example, crude oil refining facilities or other industrial facilities that include operating plants that process natural gas or recover natural gas liquids.

PROCESS INTEGRATION FOR NATURAL GAS LIQUID RECOVERY

This specification relates to operating industrial facilities, for example, crude oil refining facilities or other industrial facilities that include operating plants that process natural gas or recover natural gas liquids. 1. A method for recovering natural gas liquid from a feed gas , the method comprising:transferring heat from a plurality of hot fluids to a plurality of cold fluids through a cold box, the cold box comprising a plate-fin heat exchanger comprising a plurality of compartments; and a primary refrigerant comprising a first mixture of hydrocarbons;', 'a low pressure (LP) refrigerant separator in fluid communication with the cold box;', 'a high pressure (HP) refrigerant separator in fluid communication with the cold box; and', 'a subcooler in fluid communication with the cold box;, 'transferring heat to a refrigeration system through the cold box, the refrigeration system comprisingflowing a first portion of the primary refrigerant to the LP refrigerant separator;separating the first portion of the primary refrigerant into a LP primary refrigerant liquid phase and a LP primary refrigerant vapor phase using the LP refrigerant separator;transferring heat from the first portion of the primary refrigerant to the LP primary refrigerant vapor phase using the subcooler;flowing the first portion of the primary refrigerant from the subcooler to the cold box;flowing at least a portion of the LP primary refrigerant liquid phase to the cold box;flowing a second portion of the primary refrigerant to the HP refrigerant separator;separating the second portion of the primary refrigerant into a HP primary refrigerant liquid phase and a HP primary refrigerant vapor phase using the HP refrigerant separator;flowing at least a portion of the HP primary refrigerant liquid phase to the cold box;flowing, to a de-methanizer column in fluid communication with the cold box, at least one hydrocarbon stream originating from the feed gas;separating, using the de-methanizer column, ...

Separation Process and Apparatus for Light Noble Gas

Process and apparatus for producing helium, neon, or argon product gas using an adsorption separation unit having minimal dead end volumes. A second separation unit receives a stream enriched in helium, neon, or argon, and a stream is recycled from the second separation unit back to the adsorption separation unit in a controlled manner to maintain the concentration of the helium, neon, or argon in the feed to the separation unit within a targeted range.

PROCESS AND APPARATUS FOR PROCESSING A HYDROCARBON GAS STREAM

A process for separating a mixed or raw gas feed to produce a dry gas product and a hydrocarbon liquid product is provided. The process comprises scrubbing heavier hydrocarbon components from the gas feed to produce a lighter ends gas stream and a heavier ends liquid stream; cooling the lighter ends gas stream and separating the cooled lighter ends gas stream into a cold liquid stream and the dry gas product; and using the cold liquid stream to assist in scrubbing the heavier hydrocarbon components from the gas feed. 1. A process for separating a mixed or raw gas feed including natural gas , refinery gas , and synthetic gas , the gas feed containing methane; Ccomponents , Ccomponents , Ccomponents and heavier hydrocarbon components (C+) into a dry gas product containing a portion of Cand Ccomponents , comprising:(a) scrubbing heavier hydrocarbon components from the gas feed to produce a lighter ends gas stream and a heavier ends liquid stream;(b) cooling the lighter ends gas stream and separating the cooled lighter ends gas stream into a cold liquid stream and the dry gas product; and(c) using the cold liquid stream to assist in scrubbing the heavier hydrocarbon components from the cooled gas feed in step (a).2. The process as claimed in claim 1 , further comprising cooling the gas feed prior to step (a) to reduce energy required in step (b).3. The process as claimed in claim 1 , further comprising:{'sub': 3', '4, '(d) distilling and/or fractionating the heavier ends liquid stream to form a hydrocarbon gas liquid product that contains a desired portion of Cand Ccomponents and an overhead gas stream.'}4. The process as claimed in claim 3 , wherein the overhead gas stream is compressed and the compressed gas stream is combined with the gas feed for further processing.5. The process as claimed in claim 3 , wherein the hydrocarbon gas liquid product comprises the majority of the C+ hydrocarbon components present in the gas feed.6. The process as claimed in claim 3 , ...

METHOD AND SYSTEM FOR SEPARATING CARBON DIOXIDE FROM FLUE GAS

A method for separating carbon dioxide from flue gas to generate a high purity CO2 stream. 1. A method for separating carbon dioxide from flue gas , the method comprising:compressing the flue gas,cooling the compressed flue gas in at least a heat exchanger;providing the cooled compressed gas to a separator to generate a carbon dioxide rich liquid stream and a carbon dioxide lean gas stream;providing the carbon dioxide rich liquid stream and the carbon dioxide lean gas stream to a distillation column to generate a non-condensable gas stream and a carbon dioxide liquid stream;providing the carbon dioxide liquid at a cold side of a reboiler to generate a purified carbon dioxide liquid stream;expanding the purified carbon dioxide liquid and supplying the expanded carbon dioxide liquid to the at least a heat exchanger for cooling the at least a heat exchanger;providing the expanded carbon dioxide liquid from the at least a heat exchanger to a high-pressure compressor to generate a compressed carbon dioxide vapor;providing at least a part of the compressed carbon dioxide vapor from the high-pressure compressor to a warm side of the reboiler to generate a cooled carbon dioxide liquid;expanding the cooled carbon dioxide liquid and passing the cooled carbon dioxide liquid through the at least a heat exchanger for cooling the at least a heat exchanger; andforwarding the purified carbon dioxide liquid and the cooled carbon dioxide liquid to the at least a heat exchanger.2. The method according to claim 1 , further comprising:cooling the flue gas in at least two heat exchangers connected in series,splitting the purified carbon dioxide liquid in at least two streams,expanding each of the streams to a given pressure to generate at least two expanded carbon dioxide liquids streams having different temperatures,supplying each expanded carbon dioxide liquid stream to one of the at least two heat exchangers.3. The method according to claim 1 , further comprising:expanding the cooled ...

System and Method for Separating Natural Gas Liquid and Nitrogen from Natural Gas Streams

A system and method for removing nitrogen and producing a high pressure methane product stream and an NGL product stream from natural gas feed streams where at least 90%, and preferably at least 95%, of the ethane in the feed stream is recovered in the NGL product stream. The system and method of the invention are particularly suitable for use with feed streams in excess of 5 MMSCFD and up to 300 MMSCFD and containing around 5% to 80% nitrogen. The system and method preferably combine use of strategic heat exchange between various process streams with a high pressure rectifier tower and the ability to divert all or a portion of a nitrogen rejection unit feed stream to optionally bypass a nitrogen fractionation column to reduce capital costs and operating expenses. 1. A system for removing nitrogen from a feed stream comprising nitrogen , methane , ethane , and other components to produce a methane product stream and an NGL product stream , the system comprising:a first separator wherein the feed stream is separated into a first overhead stream and a first bottoms stream;a first fractionating column wherein the first overhead stream is separated into a second overhead stream and a second bottoms stream;an expander for expanding the first overhead stream prior to the first fractionating column;a second fractionating column wherein the second bottoms stream is separated into a third overhead stream and a third bottoms stream;a third fractionating column wherein at least a first NRU feed stream is separated into a fourth overhead stream and a fourth bottoms stream;a first heat exchanger for cooling a first portion of the feed stream prior to the first separator and cooling a first portion of the second overhead stream prior to the third fractionating column through heat exchange with the fourth bottoms stream and a recycle refrigerant stream;a second heat exchanger for cooling the first portion of the second overhead stream after the first heat exchanger and prior to ...

METHOD AND APPARATUS FOR CRYOGENIC SEPARATION OF A MIXTURE CONTAINING AT LEAST CARBON MONOXIDE, HYDROGEN AND NITROGEN

The invention relates to an apparatus for cryogenic separation of a mixture of carbon monoxide, hydrogen and nitrogen, including a stripping column and a denitrogenation column, a pipe for sending the mixture in liquid form to the head of the stripping column, a pipe for removing a liquid depleted of hydrogen connected to the stripping column, a pipe for removing a gas enriched with hydrogen from the stripping column, means for sending the liquid depleted of hydrogen or a fluid derived from said liquid to the denitrogenation column, a pipe for drawing a liquid enriched with carbon monoxide from the denitrogenation column, a pipe for drawing a gas enriched with nitrogen from the head of the denitrogenation column and means for sending at least one portion of the gas enriched with hydrogen to the denitrogenation column. 113-. (canceled)14. A method for the cryogenic separation of a mixture containing at least carbon monoxide , hydrogen and nitrogen , the method comprising the steps of:introducing the mixture, in liquid form, to the top of a stripping column under conditions effective for separation therein to form a hydrogen-lean liquid and a hydrogen-enriched gas;introducing the hydrogen-lean liquid or a fluid derived from the hydrogen-lean liquid to a nitrogen-removal column under conditions effective for separation therein to form a carbon monoxide-enriched liquid and a nitrogen-enriched gas containing the majority of the nitrogen present in the mixture;determining if the nitrogen content of an identified stream selected from the group consisting of the mixture, the nitrogen-enriched gas, a carbon monoxide-enriched gas removed from the top of the separation column in the case of variant ii), and combinations thereof; 'if the nitrogen content of the identified stream is below a threshold,', 'wherein'}i) at least part of the hydrogen-enriched gas coming from the stripping column is sent to an intermediate point of the nitrogen-removal column, orii) if the fluid is ...

Hydrocarbon Gas Processing

A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the tower overhead vapor is directed to an absorbing means and a heat and mass transfer means inside a processing assembly. A portion of the outlet vapor from the processing assembly is compressed to higher pressure, cooled and substantially condensed in a heat exchange means inside the processing assembly, then expanded to lower pressure and supplied, to the heat and mass transfer means to provide cooling. Condensed liquid from the absorbing means is fed to the tower.

PROCESS AND METHOD FOR TRANSPORTING LIQUID HYDROCARBON AND CO2 FOR PRODUCING HYDROGEN WITH CO2 CAPTURE

Systems and methods related to loading and unloading stations for simultaneous unloading of a first fluid from at least one storage tank in a vessel and loading of a second fluid into a storage tank of the same vessel are provided. In at least one aspect, a loading and unloading station includes a first connector for fluid connection to a storage tank of the vessel for unloading the first fluid, and a source of the second fluid. The station also includes a second connector for fluidly connecting the source of the second fluid with a storage tank of the vessel for loading the second fluid. The station further includes a first thermal linkage between the first fluid being unloaded and the second fluid being loaded that facilitates heat transfer between the first fluid and the second fluid at the loading and unloading station. 1. A loading and unloading station for simultaneous unloading of a first fluid from at least one storage tank in a vessel and loading of a second fluid into a storage tank of the same vessel comprising:a first connector for fluid connection to the at least one storage tank for unloading the first fluid;a source of the second fluid;a second connector for fluidly connecting the source of the second fluid with the at least one storage tank of the vessel for loading the second fluid into the at least one storage tank; anda first thermal linkage between the first fluid being unloaded and the second fluid being loaded that facilitates heat transfer between the first fluid and the second fluid at the loading and unloading station.2. The loading and unloading station of claim 1 , wherein the first fluid comprises liquefied petroleum gas (LPG) and the second fluid comprises CO.3. The loading and unloading station of claim 2 , wherein the first thermal linkage comprises a heat exchanger that transfers coldness of the LPG to the COresulting in cooling of the CO.4. The loading and unloading station of claim 2 , wherein the loading and unloading station ...

Method for Removing a Foulant from a Gas Stream with Minimal External Refrigeration

A process for removing a foulant from a gas stream is disclosed. The gas stream is cooled in a series of heat exchangers, causing a portion of the foulant to desublimate and become entrained in a cryogenic liquid. This foulant slurry stream is pressurized, cooled, and separated into a pressurized foulant solid stream and the cryogenic liquid stream. The pressurized foulant solid stream is melted to produce a liquid foulant stream. Heat exchange processes, both internal and external, are provided that close the heat balance of the process. In this manner, the foulant is removed from the gas stream. 2. The method of claim 1 , wherein the cooled cryogenic liquid recycle stream recombines in a location comprising the second heat exchanger claim 1 , the third heat exchanger claim 1 , or the foulant slurry stream.3. The method of claim 1 , wherein the foulant depleted gas stream is warmed across the first heat ex-changer.4. The method of claim 1 , wherein step (b) also includes a supplemental ambient heat exchange process before the first heat exchanger.5. The method of claim 1 , wherein step (d) also includes the first heat exchanger.6. The method of claim 1 , wherein the first refrigerant comprises ethane claim 1 , methane claim 1 , propane claim 1 , R14 claim 1 , refrigerants claim 1 , or combinations thereof.7. The method of claim 6 , wherein a storage tank is provided to store excess amounts of the first refrigerant.8. The method of claim 1 , wherein a second portion of external refrigeration is provided to the first heat exchanger using a second reverse Rankine refrigeration cycles having a second refrigerant claim 1 , wherein the second reverse Rankine refrigeration cycle comprises the steps of:a. compressing the second refrigerant;b. condensing the second refrigerant;c. expanding the second refrigerant;d. vaporizing the second refrigerant;wherein step (b) occurs in the first heat exchanger;wherein step (d) occurs in the first heat exchanger.9. The method of claim ...

Method for Removing a Foulant from a Gas Stream without External Refrigeration

A process for removing a foulant from a gas stream is disclosed. The gas stream, containing a foulant, is cooled across a first heat exchanger and a second heat exchanger, producing a solid foulant entrained in cryogenic liquid as a foulant slurry, and a foulant-depleted gas stream. The foulant-depleted gas stream is passed through a cryogenic turbine and a first separation vessel, producing a light gas stream and further solid foulant. The solid foulants are recovered by a combination of pressurization, melting, and distillation to produce a liquid foulant product. Heat is recovered from the various streams in the various heat exchangers and the melter. 2. The method of claim 1 , wherein the gas stream comprises combustion flue gas claim 1 , syngas claim 1 , producer gas claim 1 , natural gas claim 1 , steam reforming gas claim 1 , any hydrocarbon that has a lower freezing point than the temperature of the coolant claim 1 , light gases claim 1 , refinery off-gases claim 1 , or combinations thereof.3. The method of claim 1 , wherein the cooled cryogenic liquid recycle stream recombines in a location comprising the second heat exchanger claim 1 , the third heat exchanger claim 1 , or the foulant slurry stream.4. The method of claim 1 , wherein a portion of refrigeration is provided to the first heat exchanger using a reverse Rankine refrigeration cycle having a refrigerant claim 1 , wherein the reverse Rankine refrigeration cycle comprises the steps of:a. compressing the refrigerant;b. condensing the refrigerant;c. expanding the refrigerant;d. vaporizing the refrigerant;wherein step (b) occurs in the first heat exchanger;wherein step (d) occurs in the first heat exchanger.5. The method of claim 4 , wherein step (b) also includes a supplemental ambient heat exchange process.6. The method of claim 4 , wherein step (b) also includes at least two ambient heat exchangers in parallel before the first heat exchanger.7. The method of claim 6 , wherein the at least two ...

SYSTEM AND METHOD FOR RECOVERY OF NITROGEN, ARGON, AND OXYGEN IN MODERATE PRESSURE CRYOGENIC AIR SEPARATION UNIT

A moderate pressure nitrogen and argon producing cryogenic air separation unit is provided that includes a three distillation column system and turbine air stream bypass arrangement or circuit. The turbine air stream bypass arrangement or circuit is configured to improve argon and nitrogen recoveries in select operating modes by optionally diverting a portion of the turbine air stream to a nitrogen waste stream circuit drawn from the lower pressure column of the cryogenic air separation unit such that the diverted portion of the turbine air stream bypasses the distillation column system. 1. A nitrogen and argon producing cryogenic air separation unit comprising:a main air compression system configured to receive an incoming feed air stream and produce a compressed air stream;an adsorption based pre-purifier unit configured for removing water vapor, carbon dioxide, nitrous oxide, and hydrocarbons from the compressed air stream and produce a compressed and purified air stream, wherein the compressed and purified air stream is split into at least a first part of the compressed and purified air stream and a second part of the compressed and purified air stream;a main heat exchange system configured to cool the first part of the compressed and purified air stream and to partially cool the second part of the compressed and purified air stream; anda turboexpander arrangement configured to expand the partially cooled second part of the compressed and purified air stream to form an exhaust stream;a distillation column system having a higher pressure column and a lower pressure column linked in a heat transfer relationship via a condenser-reboiler and configured to separate the cooled first part of the compressed and purified air stream and a first portion of the exhaust stream and produce an oxygen enriched stream from the base of the lower pressure column and a nitrogen product stream from the overhead of the lower pressure column;the distillation column system further ...

Systems and Methods for Recovering Desired Light Hydrocarbons from Refinery Waste Gas Using a Back-End Turboexpander

Systems and methods for recovering light hydrocarbons from refinery waste gas using a back-end turboexpander to generate a higher recovery of the light hydrocarbons for use as petrochemical feedstock and to remove the liquid light hydrocarbons before entering the turboexpander. 1. A system for recovery of light hydrocarbons , which comprises:a gas chiller/dryer;a distillation column connected to the gas chiller/dryer for recovering the light hydrocarbons;a first liquid/gas separator connected to the distillation column for separating the light hydrocarbons in a liquid state from the light hydrocarbons in a gas state;a turboexpander connected to the first liquid/gas separator for cooling the light hydrocarbons in a gas state to produce a condensed liquid and a remaining vapor;a second liquid/gas separator connected to the turboexpander for separating the condensed liquid from the remaining vapor;a remaining vapor line connected to the second liquid/gas separator for transporting the remaining vapor;a first condenser connected to the remaining vapor line for cooling the distillation column using the remaining vapor;a condensed liquid line connected to the second liquid/gas separator for transporting the condensed liquid to the distillation column for further processing; anda product line in communication with the distillation column for removal of the light hydrocarbons.2. (canceled)3. (canceled)4. The system of claim 1 , wherein the distillation column is a deethanizer.5. The system of claim 1 , further comprising:a second condenser in the distillation column for cooling the distillation column using a cooled refrigerant.6. The system of claim 1 , wherein the distillation column is a demethanizer.7. The system of claim 5 , further comprising:a heat exchanger in communication with the light hydrocarbons in the distillation column.8. The system of claim 1 , wherein the light hydrocarbons comprise ethylene and the light hydrocarbons having a molecular weight greater ...

INSTRUMENT AIR SYSTEM AND METHOD

An instrument air system and method is disclosed herein. The instrument air system includes a shaft-driven air compressor configured to generate instrument air by compressing atmospheric air, a power take off configured to derive drive torque from a driven rotary shaft of the process, wherein the power take off may include a concentrically-mounted clamping collar adapted to frictionally engage the driven rotary shaft, a torque-transfer assembly configured to transfer the drive torque derived by the power take off to the shaft-driven air compressor, wherein the torque-transfer assembly comprises a set of interoperating gears including a ring gear operably coupled to the clamping collar, and an instrument-air pathway configured to supply the instrument air generated by the shaft-driven air compressor to the pneumatic process-control subsystem. The instrument air system and method is useful for reducing hydrocarbon emissions of a process using a pneumatic process-control subsystem. 1. An instrument air system relating to the reduction of hydrocarbon emissions of a process using a pneumatic process-control subsystem , the instrument air system comprising:a shaft-driven air compressor configured to generate instrument air by compressing atmospheric air;a power take off configured to derive drive torque from a driven rotary shaft of the process, the power take off including a concentrically-mounted clamping collar adapted to frictionally engage the driven rotary shaft;a torque-transfer assembly configured to transfer the drive torque derived by the power take off to the shaft-driven air compressor, the torque-transfer assembly comprising a set of interoperating gears including a ring gear operably coupled to the clamping collar; andan instrument-air pathway configured to supply the instrument air generated by the shaft-driven air compressor to the pneumatic process-control subsystem.2. The instrument air system of claim 1 , wherein the instrument-air pathway further ...

MIXED REFRIGERANT SYSTEM FOR NATURAL GAS PROCESSING

A simplified mixed refrigerant system for natural gas processing which eliminates the need for storing, mixing and adjusting the individual hydrocarbon components of the refrigerant thereby rendering what are normally complex systems more practical for the natural gas liquid recovery industry. 1. A method for recovering natural gas liquids (NGL) from a natural gas stream , comprising:receiving a natural gas stream into an inlet of a heat exchanger associated with a heat exchanger section;cooling the received natural gas stream using a mixed refrigerant circulated by a refrigerant loop to form a cooled and partially condensed natural gas stream;receiving the cooled and partially condensed natural gas stream in a separator to form an overhead gas stream and a liquid stream;stabilizing at least a portion of the liquid stream from the separator in a liquid stabilization system, wherein the liquid stream passes through a distillation column, the distillation column having a plurality of trays and a plurality of taps, each tap of the plurality of trays being in fluid communication with a tray of the plurality of trays;sending an overhead stream from the distillation column to the heat exchanger section;drawing a portion of the cooled NGL stream using at least one tap; andsending the portion of drawn cooled NGL stream to the refrigerant loop.2. The method of claim 1 , wherein the mixed refrigerant circulates in the heat exchanger via a sub-cooler line and an evaporation pass line claim 1 , and further comprising:dropping a pressure of the mixed refrigerant using a pressure reduction device connected between the sub-cooler line and the evaporation pass line;completely vaporizing the mixed refrigerant in the evaporation pass line;receiving and compressing the completely vaporized mixed refrigerant in a compressor associated with the refrigerant loop;cooling the compressed mixed refrigerant using at least one cooler; andsending the cooled compressed mixed refrigerant to the ...

Pump reservoir, rectification system and process for low-temperature rectification

The invention provides a cryogenic pump reservoir (), for a cryogenic liquid to be fed to a pump (), with an interior reservoir space () extending between a reservoir bottom () and a reservoir top () and comprising a liquid feeding region (), which is positioned at a first distance from the reservoir bottom () in the direction of the reservoir top (), and a liquid removing region (), which is positioned at a second distance from the reservoir bottom () in the direction of the reservoir top (), the second distance being greater than the first distance. It is provided that in the liquid feeding region () there is formed a liquid feeding opening (), that the interior reservoir space () is at least partially divided in the liquid feeding region () by means of a dividing wall (), which is arranged in such a way that one of its surfaces () is aligned in the direction of the liquid feeding opening (. A corresponding rectification system () and a process for low-temperature rectification are likewise the subject of the present invention. 2100101103109. The cryogenic pump reservoir () according to claim 1 , in which the reservoir bottom () is tapered in a direction away from the interior reservoir space () claim 1 , and has a solids outlet ().3100106107108106. The cryogenic pump reservoir () according to or claim 1 , in which a liquid feeding line is attached to the liquid feeding opening () and the liquid feeding line has a line axis in its end region claim 1 , wherein the dividing wall () is arranged in such a way that its surface () that is aligned in the direction of the liquid feeding opening () and is arranged at an angle of 80 to 100° to the line axis.4100103104107. The cryogenic pump reservoir () according to one of the preceding claims claim 1 , in which the interior reservoir space () has in the liquid feeding region () a cross section that is divided into two parts by the dividing wall () claim 1 , whereby the area of the two parts differs by no more than 20%. ...

Method and system for producing olefins

A process for producing one or more olefins is proposed in which a reaction input containing one or more paraffins is formed and in which a portion of the paraffin(s) present in the reaction input is converted by oxidative dehydrogenation into the olefin(s) to obtain a process gas, wherein the process gas contains at least the olefin(s), the unconverted paraffin(s), oxygen and carbon monoxide and wherein at least a portion of the process gas is subjected to a low temperature separation in which at an operating pressure level one or more gas fractions enriched in oxygen and carbon monoxide compared to the process gas are formed. It is provided that in the low temperature separation in the formation and/or for the conduction of the or at least one of the gas fractions one or more containers and/or one or more conduits having a burst pressure of at least ten times the operating pressure level are used and that the container or at least one of the containers via the or at least one of the conduits is connected to one or more heat exchangers, wherein a total length of the or of the at least one conduit between the or the at least one container and the heat exchanger(s) is not more than fifty times the internal diameter of said conduit. A corresponding plant ( 100 ) likewise forms part of the subject matter of the invention.

METHODS FOR PROVIDING REFRIGERATION IN NATURAL GAS LIQUIDS RECOVERY PLANTS

A process and plant for natural gas liquids (NGL) recovery includes a main heat exchanger, a cold gas/liquid separator, a separation or distillation column, and an overhead gas heat exchanger. A pressurized residue gas generated from an overhead gas stream removed the top of the separation or distillation column is expanded and used as a cooling medium in the overhead gas heat exchanger and the main heat exchanger. The expanded residue gas, used as a cooling medium, is then compressed up to a pressure to be combined with the overhead stream from the separation or distillation column. 1. A process for natural gas liquids (NGL) recovery comprising:introducing a natural gas feed stream into a main heat exchanger wherein the feed stream is cooled and partially condensed,introducing the partially condensed feed stream into a cold gas/liquid separator wherein the partially condensed feed stream is separated into a liquid fraction and a gaseous fraction,introducing the liquid fraction into a separation or distillation column,separating the gaseous fraction into a first portion and a second portion,cooling the first portion of the gaseous fraction in an overhead heat exchanger by indirect heat exchange with an overhead gaseous stream removed from the top of the separation or distillation column, and introducing the cooled and partially condensed first portion of the gaseous fraction into the separation or distillation column at a point above the introduction point of the liquid fraction into the separation or distillation column,expanding the second portion of the gaseous fraction and introducing the expanded second portion of the gaseous fraction into the separation or distillation column at a point above the introduction point of the liquid fraction into the separation or distillation column,removing a C2+ or C3+ liquid product stream (NGL) from the bottom of the separation or distillation column,removing the overhead gaseous stream from the top of the separation or ...

SYSTEM FOR CONTROLLING A FLOW OF FLUID, FEEDING SYSTEM COMPRISING SUCH A CONTROL SYSTEM AND METHOD USING SUCH A FEEDING SYSTEM

The invention relates to a control system which comprises: a plurality of flow valves on channels of reaction fluid, which are i) in a closed position or ii) in an open position; a plurality of control pipes connected to a source of control fluid and to a respective control pipe, all or part of the flow valves switching to the closed position when the pressure of the control fluid in the control pipe drops below a predetermined threshold; a discharge pipe connected to the control pipes, in order to discharge the control fluid from the control pipes; a safety device connected i) to each control pipe and ii) to the discharge pipe and configured to have, selectively: i) a service configuration, wherein the control fluid flows to each control pipe, thus opening each flow valve, and ii) a safety configuration, wherein the control fluid is discharged through the discharge pipe, thus closing each flow valve. 115-. (canceled)16. A control system , for controlling the circulation of at least one reaction fluid in a reaction fluid feeding system , the control system comprising:a plurality of flow valves configured to be arranged on respective channels intended to convey at least one reaction fluid, each of said flow valves being configured to have at least: i) a closed position and ii) an open position in which said at least one reaction fluid can circulate in the respective channel;a plurality of control pipes intended to be connected to a control fluid source, the control fluid being for example compressed air, each of said flow valves being connected to a respective control pipe, a plurality of said flow valves being configured to go to the closed position if the pressure of the control fluid in the respective control pipe is below a predetermined threshold;at least one evacuation pipe connected to each of said control pipes, so as to allow evacuation of the control fluid from each control pipe;a safety device connected i) to each control pipe and ii) to said at least one ...

Method for constructing or altering a matter- and/or heat-exchange device

The invention relates to a method for constructing or altering a matter- and/or heat-exchange device, said mass- and/or heat-exchange device comprising an assembly of at least one first and one second stackable modular elements (A, B, C, D, E, F, G, H, I, J, K, L), in which the first element is secured over the second element or the second element is secured below the first element in a sealed manner, such that a fluid can flow from the body of the first element to the body of the second element and/or from the body of the second element to the body of the first element.

METHOD AND APPARATUS FOR SEPARATING A SYNTHESIS GAS

In a method for separating a synthesis gas containing carbon monoxide and hydrogen, a synthesis gas flow from a synthesis gas source is compressed in a compressor and separated into at least three gaseous products. If there is insufficient synthesis gas, at least three separation products are recycled in the compressor in order to separate said products. 115-. (canceled)16. A method for separating a synthesis gas containing carbon monoxide and hydrogen wherein:i) compressing a synthesis gas flow originating from a synthesis gas source in a compressor;ii) purifying the compressed synthesis gas in a purification unit to remove water and/or carbon dioxide;iii) cooling the compressed purified synthesis gas flow;iv) separating the cooled synthesis gas flow by a separation process selected from the group consisting of scrubbing, distillation at a cryogenic temperature, adsorption in a separation unit, and combinations thereof; andv) producing at least the following three gases in the separation unit: a carbon monoxide-enriched gas, a hydrogen-enriched gas, a residual gas containing carbon monoxide and hydrogen which contains less carbon monoxide than the carbon monoxide-enriched gas and less hydrogen than the hydrogen-enriched gas,wherein only if the synthesis gas flow passed to the compressor is below a threshold or zero, at least a portion of at least two the gases selected from the group consisting of the carbon monoxide-enriched gas, the hydrogen-enriched gas, the residual gas, and combinations thereof, are introduced at a location downstream of the source and upstream of the purification unit.17. The method as claimed in claim 16 , wherein:a) the compressed synthesis gas is stored while the flow of synthesis gas is above the threshold; andb) at least a portion of the compressed synthesis gas and at least a portion of at least each of the first three gases from stage v) are passed downstream of the source to be purified in the purification unit and separated in the ...

Device and method for purifying a gas mixture

Device and method for purifying a gas mixture to produce a concentrated gas, notably neon, starting from a mixture comprising neon, said device including, in a cold box housing a cryogenic purification circuit comprising, in series, at least one unit for purifying the mixture by cryogenic adsorption at a temperature between 65K and 100K and notably 65K, then a unit for cooling the mixture to a temperature between 25 and 65 K and then a unit for cryogenic distillation of the mixture to produce the concentrated liquid at the outlet of the cryogenic distillation unit, characterized in that the unit for cooling the mixture to a temperature between 25 and 65 K comprises at least one cryocooler that extracts thermal power from the mixture via a heat exchanger.

Hydrocarbon Gas Processing

A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C(or C) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the tower overhead vapor is directed to an absorbing means and a heat and mass transfer means inside a processing assembly. The outlet vapor from the processing assembly is compressed to higher pressure and cooled, then a portion is substantially condensed in a heat exchange means inside the processing assembly, expanded to lower pressure, and supplied to the heat and mass transfer means to provide cooling. Condensed liquid from the absorbing means is fed to the tower. 1. In a process for the separation of a gas stream containing methane , Ccomponents , Ccomponents , and heavier hydrocarbon components into a volatile residue gas fraction and a relatively less volatile fraction containing a major portion of said Ccomponents , Ccomponents , and heavier hydrocarbon components or said Ccomponents and heavier hydrocarbon components , in which process(a) said gas stream is treated in one or more heat exchange steps and at least one division step to produce at least a first stream that has been cooled under pressure to condense substantially all of it, thereby forming a substantially condensed first stream, and at least a second stream that has been cooled under pressure, thereby forming a cooled second stream;(b) said substantially condensed first stream is expanded to a lower pressure whereby it is further cooled, thereby forming an expanded further cooled first stream which is thereafter supplied at a top feed position on a distillation column that produces at least an overhead vapor stream and a bottom ...

Hydrocarbon Gas Processing

A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C(or C) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the tower overhead vapor is directed to an absorbing means and a heat and mass transfer means inside a processing assembly. A portion of the outlet vapor from the processing assembly is compressed to higher pressure, cooled and substantially condensed in a heat exchange means inside the processing assembly, then expanded to lower pressure and supplied to the heat and mass transfer means to provide cooling. Condensed liquid from the absorbing means is fed to the tower. 1. In a process for the separation of a gas stream containing methane , Ccomponents , Ccomponents , and heavier hydrocarbon components into a volatile residue gas fraction and a relatively less volatile fraction containing a major portion of said Ccomponents , Ccomponents , and heavier hydrocarbon components or said Ccomponents and heavier hydrocarbon components , in which process(a) said gas stream is treated in one or more heat exchange steps and at least one division step to produce at least a first stream that has been cooled under pressure to condense substantially all of it, thereby forming a substantially condensed first stream, and at least a second stream that has been cooled under pressure, thereby forming a cooled second stream;(b) said substantially condensed first stream is expanded to a lower pressure whereby it is further cooled, thereby forming an expanded further cooled first stream which is thereafter supplied at a top feed position on a distillation column that produces at least an overhead vapor stream and a bottom ...

SOLVENT INJECTION AND RECOVERY IN A LNG PLANT

Implementations described and claimed herein provide systems and methods for processing liquefied natural gas (LNG). In one implementation, a solvent is injected into a feed of natural gas at a solvent injection point. A mixed feed is produced from a dispersal of the solvent into the feed of natural gas. The mixed feed contains heavy components. A chilled feed is produced by chilling the mixed feed. The chilled feed includes a vapor and a condensed liquid. The condensed liquid contains a fouling portion of the heavy components condensed by the solvent during chilling. The liquid containing the fouling portion of the heavy components is separated from the vapor. The vapor is directed into a feed chiller heat exchanger following separation of the liquid containing the fouling portion of the heavy components from the vapor, such that the vapor being directed into feed chiller heat exchanger is free of freezing components. 1. A method for reducing fouling in a liquefied natural gas (LNG) facility , the method comprising:injecting a solvent into a feed of natural gas at a solvent injection point;producing a mixed feed from a dispersal of the solvent into the feed of natural gas, the mixed feed containing heavy components;producing a chilled feed by chilling the mixed feed, the chilled feed including a vapor and a condensed liquid, the condensed liquid containing a fouling portion of the heavy components condensed by the solvent during chilling;separating the condensed liquid containing the fouling portion of the heavy components from the vapor; anddirecting the vapor into a feed chiller heat exchanger following separation of the condensed liquid containing the fouling portion of the heavy components from the vapor, such that the vapor being directed into feed chiller heat exchanger is free of freezing components.2. The method of claim 1 , wherein the condensed liquid containing the fouling portion of the heavy components is separated from the vapor using a drum.3. The ...

Modularized LNG Separation Device and Flash Gas Heat Exchanger

Described herein are methods and systems for the liquefaction of natural gas to produce a LNG product. The methods and systems use an apparatus for separating a flash gas from a liquefied natural gas (LNG) stream to produce a LNG product and recovering refrigeration from the flash gas. The apparatus includes a shell casing enclosing a heat exchange zone comprising a coil wound heat exchanger, and a separation zone. The heat exchange zone is located above and in fluid communication with the separation zone. Flash gas is separated from the LNG product in the separation zone and flows upwards from the separation zone into the heat exchange zone where refrigeration is recovered from the separated flash gas. 1. An apparatus for separating a flash gas from a liquefied natural gas (LNG) stream to produce an LNG product , and for recovering refrigeration from the separated flash gas , the apparatus comprising a shell casing enclosing a heat exchange zone and a separation zone , the heat exchange zone being located above and in fluid communication with the separation zone , the separation zone configured to separate the flash gas from the LNG product and the heat exchange zone being configured to recover refrigeration from the separated flash gas;wherein the heat exchange zone comprises at least one coil wound tube bundle defining a tube side and a shell side of the heat exchange zone, the tube side defining one or more passages through the heat exchange zone for cooling and/or liquefying a first fluid stream, and the shell side defining a passage through the heat exchange zone for warming separated flash gas;wherein the separation zone is configured such that flash gas separated from the LNG product in the separation zone flows upwards from the separation zone into and through the shell side of the heat exchange zone; a first inlet in fluid flow communication with the tube side of the heat exchange zone for introducing the first fluid stream to be cooled and/or liquefied;', ...

SYSTEMS AND METHODS FOR REMOVAL OF NITROGEN FROM LNG

A system for the removal of nitrogen from a liquid natural gas (LNG) stream. The system. comprises a feed heat changer and a stripper column. The heat receives the LNG stream and cools the LNG stream via heat exchange with a stripper column side-draw stream to yield a cooled LNG stream and a heated side-draw stream. The stripper column receives the cooled LNG stream at a first tray and the heated side-draw stream. The stripper column produces the stripper column side-draw stream, a stripper column overhead stream, and a stripper column bottom stream. The stripper column side-draw stream is taken from the stripper column at a second tray. The second tray is at least about 15 feet higher than the feed heat exchanger. 1. A system for the removal of nitrogen from a liquid natural gas (LNG) stream , the system comprising:a feed heat exchanger, wherein the heat is configured to receive the LNG stream and to cool the LNG stream via heat exchange with a stripper column side-draw stream to yield a cooled LNG stream and a heated side-draw stream; anda stripper column, wherein the stripper column is configured to receive the cooled LNG stream at a first tray and the heated side-draw stream, and wherein the stripper column is configured to produce the stripper column side-draw stream, a stripper column overhead stream, and a stripper column bottom stream,wherein the stripper column is configured such that the stripper column side-draw stream is taken from the stripper column at a second tray, wherein the second tray is at least about 15 feet higher than the feed heat exchanger.2. The system of claim 1 , further comprising a pressure reduction device claim 1 , wherein the pressure reduction device is configured to reduce the pressure of the stripper column side-draw stream prior to introduction into the feed heat exchanger.3. The system of claim 2 , wherein the pressure reduction device is a valve.4. The system of claim 2 , further comprising a control device claim 2 , wherein ...

System and Method for Small Scale LNG Production

A system and method for producing an LNG product stream to provide fuel to generators, as an alternative to diesel, to power drilling and other equipment. Using sales gas from a natural gas/NGL plant containing less than 95% methane as a feed stream, production of LNG having 95% or more methane in quantities of 100,000 GPD or more LNG product are achievable with the system and method. The system and method preferably combine use of strategic heat exchange between the feed and a nitrogen-methane flash vapor stream and other streams within the LNG processing system without requiring heat exchange with process streams in the natural gas/NGL plant and a rectifier column that uses an internal knockback condenser and does not require a reboiler to remove heavier components from the sales gas feed. 1. A system for producing an LNG product stream from a feed stream comprising nitrogen , methane , ethane , and other components , the system comprising:a first fractionating column wherein the feed stream is separated into a first overhead stream and a first bottoms stream;a heat exchanger for cooling at least a first portion of the feed stream upstream of the first fractionating column, for cooling the first overhead stream, and for cooling at least a first portion of a compressed recycle stream through heat exchange with the first bottoms stream and a primary refrigerant stream;a flash stage comprising a vessel configured to receive the first overhead stream downstream of the heat exchanger, discharge a flash vapor stream, and discharge the LNG product stream; anda refrigeration loop comprising a first compressor expander unit, a second compressor expander unit, and a first mixer, wherein (1) the primary refrigerant stream is warmed in the heat exchanger to form a first recycle stream; (2) the first recycle stream is compressed in the first compressor expander unit and compressed in the second compressor expander unit to form the compressed recycle stream; (3) at least the ...

PRETREATMENT OF NATURAL GAS PRIOR TO LIQUEFACTION

Method and system for removing high freeze point components from natural gas. Feed gas is cooled in a heat exchanger and separated into a first vapor portion and a first liquid portion. The first liquid portion is reheated using the heat exchanger and separated into a high freeze point components stream and a non-freezing components stream. A portion of the non-freezing components stream may be at least partially liquefied and received by an absorber tower. The first vapor portion may be cooled and received by the absorber tower. An overhead vapor product which is substantially free of high freeze point freeze components and a bottoms product liquid stream including freeze components and non-freeze components are produced using the absorber tower. 1. A method of removing high freeze point components from natural gas , comprising:cooling a feed gas in a heat exchanger;separating the cooled feed gas into a first vapor portion and a first liquid portion;heating the first liquid portion using the heat exchanger;separating the heated first liquid portion into a high freeze point components stream and a non-freezing components stream;directing at least a portion of the non-freezing components stream to an absorber tower;directing the first vapor portion to the absorber tower at a feed point below the at least a portion of the non-freezing components stream;generating i) an absorber tower overhead vapor stream that is substantially free of high freeze point components, and ii) an absorber tower bottoms stream that includes high freeze point components and non-freezing components;recycling at least a portion of the absorber tower bottoms stream to the feed gas upstream of the heat exchanger; andheating the absorber tower overhead vapor stream using the heat exchanger.2. The method of claim 1 , wherein the absorber tower includes one or more mass transfer stages.3. The method of claim 1 , further comprising compressing the heated absorber tower overhead vapor stream using an ...

Demixing sidedraws for distillation columns

The present invention provides one or more sidedraws, from the stripping section of a column, of a heavy key component in the presence of a desirable heavier than heavy key component. In addition, the present invention provides one or more sidedraws, from the rectification section of a column, of a light key component in the presence of a desirable lighter than light key component. In prior art columns, an inherent remixing of the components to be separated in downstream columns occurs near the top or bottom of refluxed or reboiled columns respectively. In the prior art, a re-separation of the remixed components from an upstream column must be done in downstream columns. The present invention eliminates or reduces, according to desired optimization, the remixing by removal of the heavy or light key components in the sidedraw stream.

Aromatics and/or heavies removal from a methane-based feed by condensation and stripping

A process and associated apparatus for removing aromatics and/or higher molecular weight hydrocarbons from a methane-based gas stream comprising the steps of (a) condensing a minor portion of the methane-based gas stream thereby producing a two-phase stream, (b) feeding said two phase stream to the upper section of a column, (c) removing from the upper section of the column an aromatic- and/or heavies-depleted gas stream, (d) removing from the lower section of the column an aromatic- and/or heavies-rich liquid stream, (e) contacting via indirect heat exchange the aromatic- and/or heavies-rich liquid stream with a methane-rich stripping gas thereby producing a warmed liquid stream and a cooled stripping gas stream, (f) feeding said cooled stripping gas stream to the lower section of the column; and (g) contacting said two-phase stream and the cooled stripping gas stream in the column thereby producing the aromatic- and/or heavies-depleted gas stream and the aromatic- and/or heavies-rich liquid stream.

Method for partial condensation of hydrocarbon gas mixtures

Heavy components of hydrocarbon gas mixtures are recovered through partial condensation of a first portion of the starting gas by indirect heat exchange with a refrigerant wherein the condensate formed is entrained in the gas stream. The condensate is separated from the resulting partially condensed, two-phase mixture and the separated condensate is then thermally stripped of light components by heat exchange with a second portion of the starting gas which is thereby also partially condensed. Heavy components from the starting gas mixture are recovered as stripped hydrocarbon condensate.

Dephlegmator system and process

Dephlegmator system without headers, collectors, or distributors at the bottom end of feed circuits in plate and fin exchangers operating in condensing or rectifying service. Each dephlegmator is installed within a pressure vessel, thereby eliminating the need for headers, collectors, or distributors at the bottom end of the feed circuits. In an alternative embodiment of the invention, upper and lower segments of the pressure vessel are isolated by a mid-vessel seal between the vessel and dephlegmator walls, and headers or collectors are not required at the upper and lower ends of the feed circuits.

Aromatics and/or heavies removal from a methane-based feed by condensation and stripping

回收乙烯压缩制冷系统开车尾气的分离工艺

本发明提供了一种回收乙烯压缩制冷系统开车尾气的分离工艺，属于石油化工领域。通过低温膨胀透平将制冷系统开车尾气中的静压能转化为超低温冷量，使能量得到充分利用；通过冷箱换热，利用低温膨胀透平产生的超低温冷量，冷凝回收开车尾气中的乙烯。本发明提供了一种不需要消耗外部能量就能回收乙烯压缩制冷系统开车尾气的分离方法及工艺，可实现压缩制冷系统开车尾气中95％以上乙烯的回收。此外，由于不需要外加动力系统，根据本发明建立的压缩制冷系统开车尾气回收装置，具有工艺流程简单、设备数量少等特征，因而投资少、运行稳定。

回收乙烯压缩制冷系统开车尾气的分离工艺

本发明提供了一种回收乙烯压缩制冷系统开车尾气的分离工艺，属于石油化工领域。通过低温膨胀透平将制冷系统开车尾气中的静压能转化为超低温冷量，使能量得到充分利用；通过冷箱换热，利用低温膨胀透平产生的超低温冷量，冷凝回收开车尾气中的乙烯。本发明提供了一种不需要消耗外部能量就能回收乙烯压缩制冷系统开车尾气的分离方法及工艺，可实现压缩制冷系统开车尾气中95％以上乙烯的回收。此外，由于不需要外加动力系统，根据本发明建立的压缩制冷系统开车尾气回收装置，具有工艺流程简单、设备数量少等特征，因而投资少、运行稳定。

Hydrocarbon gas processing

A process and an apparatus are disclosed for a compact processing assembly to recover ethane, ethylene, and heavier hydrocarbon components from a hydrocarbon gas stream. The gas stream is cooled and divided into first and second streams. The first stream is further cooled, expanded to lower pressure, and supplied as a feed between two absorbing means. The second stream is expanded to lower pressure and supplied as a bottom feed to the lower absorbing means. A distillation liquid stream from the bottom of the lower absorbing means is heated in a heat and mass transfer means to strip out its volatile components. A distillation vapor stream from the top of the heat and mass transfer means is cooled by a distillation vapor stream from the top of the upper absorbing means, thereby forming a condensed stream that is supplied as a top feed to the upper absorbing means.

Hydrocarbon Gas Processing

A process and an apparatus are disclosed for a compact processing assembly to remove carbon dioxide from a hydrocarbon gas stream. The gas stream is cooled, expanded to intermediate pressure, and fed to the top of a mass transfer means. A distillation liquid stream from the mass transfer means is heated in a first heat and mass transfer means to strip out its volatile components and form a bottom liquid product. A distillation vapor stream from the mass transfer means is combined with any vapor in the expanded cooled gas stream, and the combined vapor stream is cooled in a second heat and mass transfer means to partially condense it, forming a condensed stream that is fed to the top of the mass transfer means. A portion of the bottom liquid product is subcooled, expanded to lower pressure, and used to cool the combined vapor stream.

Process and apparatus for processing a hydrocarbon gas stream

A process for separating a mixed or raw gas feed to produce a dry gas product and a hydrocarbon liquid product is provided. The process comprises scrubbing heavier hydrocarbon components from the gas feed to produce a lighter ends gas stream and a heavier ends liquid stream; cooling the lighter ends gas stream and separating the cooled lighter ends gas stream into a cold liquid stream and the dry gas product; and using the cold liquid stream to assist in scrubbing the heavier hydrocarbon components from the gas feed.

Hydrocarbon gas processing

A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the tower overhead vapor is directed to an absorbing means and a heat and mass transfer means inside a processing assembly. A portion of the outlet vapor from the processing assembly is compressed to higher pressure, cooled and substantially condensed in a heat exchange means inside the processing assembly, then expanded to lower pressure and supplied, to the heat and mass transfer means to provide cooling. Condensed liquid from the absorbing means is fed to the tower.

Hydrocarbon gas processing

A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the tower overhead vapor is directed to an absorbing means and a heat and mass transfer means inside a processing assembly. A portion of the outlet vapor from the processing assembly is compressed to higher pressure, cooled and substantially condensed in a heat exchange means inside the processing assembly, then expanded to lower pressure and supplied to the heat and mass transfer means to provide cooling. Condensed liquid from the absorbing means is fed to the tower.

Hydrocarbon gas processing

A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the tower overhead vapor is directed to an absorbing means and a heat and mass transfer means inside a processing assembly. A portion of the outlet vapor from the processing assembly is compressed to higher pressure, cooled and substantially condensed in a heat exchange means inside the processing assembly, then expanded to lower pressure and supplied to the heat and mass transfer means to provide cooling. Condensed liquid from the absorbing means is fed to the tower.

Natural gas liquids recovery process

Methods and systems for operating and NGL recovery process are provided. In an exemplary method, an absorber column upstream of a fractionator column is operated at a higher pressure than a pressure in the fractionator column. An NGL (C 3 plus) stream is taken from the bottom of a fractionator column and then ethylene/ethane stream is taken from the top of the fractionator column. A differential pressure between the absorber column and the fraction are column is controlled based, at least in part, on a flow rate of the fractionator feed stream from the absorber column to the fractionator column.

Hydrocarbon gas processing

A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the tower overhead vapor is directed to an absorbing means and a heat and mass transfer means inside a processing assembly. The outlet vapor from the processing assembly is compressed to higher pressure and cooled, then a portion is substantially condensed in a heat exchange means inside the processing assembly, expanded to lower pressure, and supplied to the heat and mass transfer means to provide cooling. Condensed liquid from the absorbing means is fed to the tower.

Hydrocarbon gas processing including a single equipment item processing assembly

A process and an apparatus are disclosed for a compact processing assembly to recover ethane, ethylene, and heavier hydrocarbon components from a hydrocarbon gas stream. The gas stream is cooled and divided into first and second streams. The first stream is further cooled, expanded to lower pressure, and supplied as a feed between two absorbing means. The second stream is expanded to lower pressure and supplied as a bottom feed to the lower absorbing means. A distillation liquid stream from the bottom of the lower absorbing means is heated in a heat and mass transfer means to strip out its volatile components. A distillation vapor stream from the top of the heat and mass transfer means is cooled by a distillation vapor stream from the top of the upper absorbing means, thereby forming a condensed stream that is supplied as a top feed to the upper absorbing means.

Hydrocarbon gas processing including a single equipment item processing assembly

A process and an apparatus are disclosed for a compact processing assembly to remove carbon dioxide from a hydrocarbon gas stream. The gas stream is cooled, expanded to intermediate pressure, and fed to the top of a mass transfer means. A distillation liquid stream from the mass transfer means is heated in a first heat and mass transfer means to strip out its volatile components and form a bottom liquid product. A distillation vapor stream from the mass transfer means is combined with any vapor in the expanded cooled gas stream, and the combined vapor stream is cooled in a second heat and mass transfer means to partially condense it, forming a condensed stream that is fed to the top of the mass transfer means. A portion of the bottom liquid product is subcooled, expanded to lower pressure, and used to cool the combined vapor stream.

Natural gas liquids recovery process

Methods and systems for operating and NGL recovery process are provided. In an exemplary method, an absorber column upstream of a fractionator column is operated at a higher pressure than a pressure in the fractionator column. An NGL (C3 plus) stream is taken from the bottom of a fractionator column and then ethylene/ethane stream is taken from the top of the fractionator column. A differential pressure between the absorber column and the fraction are column is controlled based, at least in part, on a flow rate of the fractionator feed stream from the absorber column to the fractionator column.

烃气体处理

公开了用于在紧凑型工艺设备中从烃气流中回收重烃组分的工艺及装置。将气流冷却、冷凝，并膨胀到较低的压力，并作为进料供给到所述工艺设备内部的吸收装置。从所述吸收装置中收集蒸馏液流，并导至所述工艺设备内部的传热及传质装置，以在冷却气流的同时汽提其挥发性组分。从传热及传质装置中收集蒸馏料流并冷却到足以将其至少部分地冷凝，从而形成残余蒸气流和冷凝的料流。所述进料的数量和温度处于某温度，由此回收所述汽提的蒸馏液流中所需组分的主要部分。

Hydrocarbon gas processing

A process and an apparatus are disclosed for removal of carbon dioxide from hydrocarbon gas streams in a processing assembly. The stream is cooled, expanded to intermediate pressure, and supplied as a top feed to a mass transfer means inside the processing assembly. A distillation liquid stream is collected from the lower region of the mass transfer means and directed into a first heat and mass transfer means inside the processing assembly to heat it and strip out its volatile components while cooling the gas stream, thereafter discharging the heated and striped distillation liquid stream from the processing assembly as the bottom liquid product therefrom. The quantities and temperatures of the feeds to the mass transfer means are effective to maintain the temperature of the upper region of the mass transfer means at a temperature whereby the major portion of said carbon dioxide is recovered in the bottom liquid product.

Process and apparatus for processing a hydrocarbon gas stream

A process for separating a mixed or raw gas feed to produce a dry gas product and a hydrocarbon liquid product is provided. The process comprises scrubbing heavier hydrocarbon components from the gas feed to produce a lighter ends gas stream and a heavier ends liquid stream; cooling the lighter ends gas stream and separating the cooled lighter ends gas stream into a cold liquid stream and the dry gas product; and using the cold liquid stream to assist in scrubbing the heavier hydrocarbon components from the gas feed.

Method and system for producing olefins

The invention relates to a method for producing one or more olefins, wherein a reaction mixture is formed, containing one or more paraffins, and wherein a portion of the paraffin/s contained in the reaction mixture is converted into the olefin/s via oxidative dehydration with the formation of a process gas, wherein the process gas contains at least the olefin/s, the unreacted paraffin/s, oxygen and carbon monoxide, and wherein at least one portion of the process gas is subjected to a cryogenic separation, in which one or more gas fractions are formed, which are enriched with oxygen and carbon monoxide in relation to the process gas, at an operating pressure level. According to the invention, in the cryogenic separation, with the formation and/or for the conveying of the gas fractions, or at least one of the gas fractions, one or more containers and/or one or more lines are used having a bursting pressure corresponding to at least ten times the operating pressure level, and the container, or at least one of the containers, is connected to one or more heat exchangers via the lines, or at least one of the lines, wherein a total length of the line, or the at least one line, between the container, or the at least one container, and the heat exchanger/s is max. fifty times its internal diameter. The invention also relates to a corresponding system (100).

Dehydrogenation separation unit with mixed refrigerant cooling

A system for separating olefinic hydrocarbon and hydrogen in an effluent fluid stream from a dehydrogenation reactor includes a heat exchanger that receives and partially condenses the effluent fluid stream so that a mixed phase effluent stream is formed. A primary separation device receives and separates the mixed phase effluent stream into a primary vapor stream and a primary liquid product stream. A heat exchanger receives and partially condenses the primary vapor stream so that a mixed phase primary stream is formed. A secondary separation device receives and separates the mixed phase primary stream into a secondary vapor stream and a secondary liquid product stream. A heat exchanger receives and warms the secondary vapor stream to provide refrigeration for partially condensing the effluent fluid stream and a heat exchanger receives and warms the secondary vapor stream to provide refrigeration for partially condensing the primary vapor stream. A mixed refrigerant compression system provides refrigerant to a heat exchanger to provide refrigeration.

System and method for separating gas condensate liquid and nitrogen from natural gas streams

FIELD: gas industry. SUBSTANCE: system and method for removing nitrogen and producing a high-pressure methane product stream and NGL product stream from natural gas feed streams are proposed, where at least 90% of ethane and preferably at least 95% of ethane in the feed stream are extracted into NGL product stream. The system and method of the invention are particularly suitable for use with supply flows over 5 million cubic feet/day (0.1 million m 3 /day) and up to 300 million cubic feet/day (8.5 million m 3 /day) and containing from about 5% to 80% of nitrogen. The system and method preferably combine the use of strategic heat exchange between various technological flows with a high-pressure distillation column and a capability of diverting all or part of the supply flow to a nitrogen removal plant with an optional bypass of a nitrogen fractionation column to reduce capital costs and operating costs. EFFECT: removing nitrogen and producing a high-pressure methane product stream and NGL product stream from natural gas feed streams. 63 cl, 5 dwg, 2 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 766 161 C2 (51) МПК F25J 3/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F25J 3/0209 (2021.08); F25J 3/0233 (2021.08); F25J 3/0238 (2021.08); F25J 5/005 (2021.08) (21)(22) Заявка: 2019128836, 02.02.2018 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): БАТТС ПРОПЕРТИЗ, ЛТД. (US) Дата регистрации: 08.02.2022 Приоритет(ы): (30) Конвенционный приоритет: 15.02.2017 US 15/433,375 (43) Дата публикации заявки: 16.03.2021 Бюл. № 8 (45) Опубликовано: 08.02.2022 Бюл. № 4 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.09.2019 2 7 6 6 1 6 1 (56) Список документов, цитированных в отчете о поиске: US 4331461 A, 25.05.1982. RU 128924 U1, 10.06.2013. US 2014/182331 A1, 03.07.2014. US 2012/324943 A1, 27.12.2012. US 4948405 A, 14.08.1990. R U 02.02.2018 (72) Автор(ы): БАТТС, Рэйберн, К. ...

Patent RU2019128836A3

ВИ“? 2019128836” АЗ Дата публикации: 19.07.2021 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2019128836/12(056693) 02.02.2018 РСТЛО52018/016561 02.02.2018 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 15/433,375 15.02.2017 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СИСТЕМА И СПОСОБ ДЛЯ ОТДЕЛЕНИЯ ГАЗОКОНДЕНСАТНОЙ ЖИДКОСТИ И АЗОТА ИЗ ПОТОКОВ ПРИРОДНОГО ГАЗА Заявитель: БАТТС ПРОПЕРТИЗ, ЛТД., 0$ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) Е25.7 3/02 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) Е257 3/00-3/02 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится к гория* относящихся к предмету поиска пункту формулы № 1 2 3 А 0$ 4331461 А (РНПЛАР РЕТКОГЕОМ ...

Система и способ для отделения газоконденсатной жидкости и азота из потоков природного газа

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 128 836 A (51) МПК F25J 3/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019128836, 02.02.2018 (71) Заявитель(и): БАТТС ПРОПЕРТИЗ, ЛТД. (US) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): БАТТС, Рэйберн, К. (US) 15.02.2017 US 15/433,375 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.09.2019 R U (43) Дата публикации заявки: 16.03.2021 Бюл. № 8 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2018/151954 (23.08.2018) A Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Система для удаления азота из сырьевого потока, содержащего азот, метан, этан и другие компоненты, с образованием потока метанового продукта и потока NGLпродукта, причем система включает в себя: первый сепаратор, в котором сырьевой поток разделяется на первый головной поток и первый кубовый поток; первую фракционирующую колонну, в которой первый головной поток разделяется на второй головной поток и второй кубовый поток; детандер для расширения первого головного потока перед первой фракционирующей колонной; вторую фракционирующую колонну, в которой второй кубовый поток разделяется на третий головной поток и третий кубовый поток; третью фракционирующую колонну, в которой первый поток подачи NRU и второй поток подачи NRU разделяются на четвертый головной поток и четвертый кубовый поток; первый теплообменник для охлаждения первой части потока подачи перед первым сепаратором и охлаждения первой части второго головного потока перед третьей фракционирующей колонной посредством теплообмена с четвертым кубовым потоком и рециркулирующим потоком хладагента; Стр.: 1 A 2 0 1 9 1 2 8 8 3 6 (54) СИСТЕМА И СПОСОБ ДЛЯ ОТДЕЛЕНИЯ ГАЗОКОНДЕНСАТНОЙ ЖИДКОСТИ И АЗОТА ИЗ ПОТОКОВ ПРИРОДНОГО ГАЗА 2 0 1 9 1 2 8 8 3 6 US 2018/016561 (02.02.2018) A 2 0 1 9 1 2 8 8 3 6 A R U 2 0 1 9 1 2 8 8 3 6 Стр.: ...

Hydrocarbon gas processing

FIELD: hydrocarbon gas processing.SUBSTANCE: method and installation for a compact processing unit to improve the extraction of C2(or C3) and heavier hydrocarbon components from a hydrocarbon gas stream is disclosed. The method involves treating the gas stream in one or more heat exchange stages and at least one separation stage to produce at least a first stream that is cooled under pressure until complete condensation, and at least a second stream that is cooled under pressure. The first stream is delivered to the top feed point in the distillation column. The second stream is delivered to the intermediate feed point in the distillation column. In the distillation column, the streams are fractionated at a lower pressure. The less volatile components are extracted into the stream of the cubic liquid. The volatile fraction exits as an overhead vapor stream, which is directed to an absorption device to come into contact with the condensed stream. The less volatile components condense to form a partially rectified vapor stream. The partially rectified vapor stream is collected in the upper zone of the absorption device and sent to the heat and mass transfer device. The less volatile components of the stream condense to form an additional rectified vapor stream and a condensed stream. The condensed stream is directed to the absorption device. The rectified vapor stream is directed to the heat exchanger and heated. The outgoing vapor stream is divided into the first part and the second part. The first part is compressed. The compressed steam is directed to the heat exchanger and cooled to condensation. The condensed stream is expanded. The rapidly expanded stream is heated in a heat and mass transfer device. The heated rapidly expanded stream is combined with the second part to form a volatile fraction of the residual gas. The condensed first stream is directed to the heat exchanger and further cooled under pressure. The additionally cooled first stream is expanded. The ...

Переработка углеводородного газа

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 108 439 A (51) МПК B01D 53/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019108439, 04.08.2017 (71) Заявитель(и): ЮОП ЛЛС (US) Приоритет(ы): (30) Конвенционный приоритет: 26.08.2016 US 62/380,014; 24.10.2016 US 15/332,723 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 26.03.2019 US 2017/045460 (04.08.2017) (87) Публикация заявки PCT: A WO 2018/038895 (01.03.2018) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Способ разделения газового потока, содержащего метан, C2 компоненты, C3 компоненты и более тяжелые углеводородные компоненты на летучую фракцию остаточного газа и сравнительно менее летучую фракцию, содержащую основную часть указанных C2 компонентов, C3 компонентов и более тяжелых углеводородных компонентов или указанных C3 компонентов и более тяжелых углеводородных компонентов, включающий (a) обработку указанного газового потока на одном или более этапов теплообмена и по меньшей мере одном этапе разделения для получения по меньшей мере первого потока, который охлажден под давлением до по существу полной конденсации, и по меньшей мере второго потока, который охлажден под давлением; (b) расширение указанного по существу конденсированного первого потока до более низкого давления, в результате чего он дополнительно охлаждается, и после этого его поставку в точку верхней подачи в дистилляционной колонне, которая производит по меньшей мере поток пара верхнего погона и поток кубовой жидкости; (c) расширение указанного охлажденного второго потока до указанного более низкого давления и после этого его поставку в промежуточную точку подачи в указанной дистилляционной колонне; и Стр.: 1 A 2 0 1 9 1 0 8 4 3 9 (54) ПЕРЕРАБОТКА УГЛЕВОДОРОДНОГО ГАЗА 2 0 1 9 1 0 8 4 3 9 (86) Заявка PCT: R U (43) Дата публикации заявки: 28.09.2020 Бюл. № 28 (72) Автор(ы ...

生产烯烃的方法和系统

提出了一种制备一种或多种烯烃的方法，其中形成含有一种或多种链烷烃的反应输入，并且其中存在于反应输入中的部分链烷烃通过氧化脱氢转化为烯烃而获得工艺气体，其中工艺气体至少含有烯烃、未转化的链烷烃、氧气和一氧化碳，并且其中至少部分工艺气体经受低温分离，其中在操作压力水平下形成与工艺气体相比的富含氧气和一氧化碳的一种或多种气体馏分。提供的是，在形成的低温分离中和/或为了引导至少一个气体馏分，使用具有至少十倍于操作压力水平的爆破压力的一个或多个容器和/或一个或多个导管，并且所述容器或至少一个容器通过所述或至少一个导管连接到一个或多个热交换器，其中在所述或至少一个容器和所述热交换器之间的所述或至少一个导管的总长度不超过所述导管内径的五十倍。相应的设备(100)同样构成本发明主题的一部分。

Systems and methods for extracting target light hydrocarbons from gaseous refining wastes using turbine expander in systems end part

FIELD: technological processes. SUBSTANCE: invention relates to systems and methods for extraction of light hydrocarbons from gaseous waste refining using turbine expander in system end part. System for extraction of light hydrocarbons includes rectification column connected to cooler and gas desiccator, turbine expander for cooling light hydrocarbons in order to obtain condensed liquid and remaining steam, connected to first liquid/gas separator connected to rectification column, for separation of light hydrocarbons into liquid and gas and second liquid/gas separator for separation of condensed liquid from remaining steam, remaining steam line directly connected to second liquid/gas separator and condenser in rectification column for rectification column cooling, condensed liquid main line connected to the second liquid/gas separator for transportation of the condensed liquid to the rectification column for further processing. EFFECT: invention provides increased extraction of light hydrocarbons and reduced amount of heavy hydrocarbons supplied to the turbine expander. 13 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 703 249 C1 (51) МПК C10L 3/10 (2006.01) C07C 7/04 (2006.01) F25J 3/02 (2006.01) B01D 3/14 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C10L 3/10 (2019.05); C07C 7/04 (2019.05); F25J 3/02 (2019.05); B01D 3/14 (2019.05); F25J 3/0219 (2019.05); F25J 3/0233 (2019.05); F25J 3/0238 (2019.05); F25J 3/0242 (2019.05); F25J 3/0295 (2019.05); B01D 5/0036 (2019.05); B01D 1/2843 (2019.05) (21)(22) Заявка: 2018126401, 18.12.2015 18.12.2015 Дата регистрации: (73) Патентообладатель(и): БЕКТЕЛ ГИДРОКАРБОН ТЕКНОЛОДЖИ СОЛУШЕНЗ, ИНК. (US) Приоритет(ы): (22) Дата подачи заявки: 18.12.2015 (56) Список документов, цитированных в отчете о поиске: RU 2559413 А, 10.08.2015. US 20150233633 A1, 20.08.2015. US 3797261 А, 19.03.1974. US 2775103 А, 25.12.1956. (45) Опубликовано: 15.10.2019 Бюл. № 29 (85) Дата начала ...

Переработка углеводородного газа

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 108 438 A (51) МПК B01D 53/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019108438, 04.08.2017 (71) Заявитель(и): ЮОП ЛЛС (US) Приоритет(ы): (30) Конвенционный приоритет: 26.08.2016 US 62/380,017; 24.10.2016 US 15/332,706 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 26.03.2019 US 2017/045457 (04.08.2017) (87) Публикация заявки PCT: A WO 2018/038894 (01.03.2018) Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Способ разделения газового потока, содержащего метан, C2 компоненты, C3 компоненты и более тяжелые углеводородные компоненты на летучую фракцию остаточного газа и сравнительно менее летучую фракцию, содержащую основную часть указанных C2 компонентов, C3 компонентов и более тяжелых углеводородных компонентов или указанных C3 компонентов и более тяжелых углеводородных компонентов, включающий (a) обработку указанного газового потока на одном или более этапов теплообмена и по меньшей мере одном этапе разделения для получения по меньшей мере первого потока, который охлажден под давлением до по существу полной конденсации, и по меньшей мере второго потока, который охлажден под давлением; (b) расширение указанного по существу конденсированного первого потока до более низкого давления, в результате чего он дополнительно охлаждается, и после этого его поставку в точку верхней подачи в дистилляционной колонне, которая производит по меньшей мере поток пара верхнего погона и поток кубовой жидкости; (c) расширение указанного охлажденного второго потока до указанного более низкого давления и после этого его поставку в промежуточную точку подачи в указанной дистилляционной колонне; и Стр.: 1 A 2 0 1 9 1 0 8 4 3 8 (54) ПЕРЕРАБОТКА УГЛЕВОДОРОДНОГО ГАЗА 2 0 1 9 1 0 8 4 3 8 (86) Заявка PCT: R U (43) Дата публикации заявки: 28.09.2020 Бюл. № 28 (72) Автор(ы): ...

具有混合制冷剂冷却的脱氢分离装置和方法

用于分离来自脱氢反应器的流出液流中的烯烃和氢气的系统，包括热交换器，该热交换器接收并部分地冷凝流出液流，从而形成混合相流出液流。初级分离装置接收并将混合相流出流分离成初级蒸汽流和初级液体产品流。热交换器接收并部分地冷凝初级蒸汽流，从而形成混合相初级流。二次分离装置接收混合相初级流并将该混合相初级流分离成二次蒸汽流和二次液体产品流。热交换器接收并加热二次蒸汽流以提供用于部分地冷凝流出液流的制冷，热交换器接收并加热二次蒸汽流以提供用于部分地冷凝初级蒸汽流的制冷。混合制冷剂压缩系统向热交换器提供制冷剂以提供制冷。

具有混合制冷剂冷却的脱氢分离装置

用于分离来自脱氢反应器的流出液流中的烯烃和氢气的系统，包括热交换器，该热交换器接收并部分地冷凝流出液流，从而形成混合相流出液流。初级分离装置接收并将混合相流出流分离成初级蒸汽流和初级液体产品流。热交换器接收并部分地冷凝初级蒸汽流，从而形成混合相初级流。二次分离装置接收混合相初级流并将该混合相初级流分离成二次蒸汽流和二次液体产品流。热交换器接收并加热二次蒸汽流以提供用于部分地冷凝流出液流的制冷，热交换器接收并加热二次蒸汽流以提供用于部分地冷凝初级蒸汽流的制冷。混合制冷剂压缩系统向热交换器提供制冷剂以提供制冷。

烃气体加工

公开了一种用于紧凑加工组件以改进从烃气流中回收C 2 (或C 3 )和更重的烃组分的工艺和设备。分离烃气流的优选方法通常包括：至少产生基本上冷凝的第一流和冷却的第二流；使所述两个流膨胀至较低压力；以及将所述流供应至分馏塔。在所公开的工艺和设备中，塔顶蒸气被引导至加工组件内部的吸收构件以及传热传质构件。来自所述加工组件的出口蒸气被压缩至较高压力并且冷却，然后一部分在所述加工组件内部的热交换构件中基本上冷凝，膨胀至较低压力并且被供应至所述传热传质构件以提供冷却。来自所述吸收构件的冷凝液体被馈送至所述塔。

Patent RU2019108438A3

ВИ“? 2019108438” АЗ Дата публикации: 12.10.2020 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2019108438/05(016237) 04.08.2017 РСТД52017/045457 04.08.2017 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 62/380,017 26.08.2016 05 2. 15/332,706 24.10.2016 05 Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) ПЕРЕРАБОТКА УГЛЕВОДОРОДНОГО ГАЗА Заявитель: ЮОП ЛЛС, 0$ 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) ВОТЬ 53/00 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) ВОО 53/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): Езрасепе, РаБеагсв, КОРТО, ОЗРТО, Уапдех 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится к гория* относящихся к предмету поиска пункту формулы № 1 2 3 А 05$ 2015315104 А2 (ОКТЕОЕЕ ЕМОТМЕЕКБУ ...