Газоперерабатывающий завод для глубокой деэтанизации природного газа

Изобретение относится к криогенной технике и может быть использовано в газовой промышленности для переработки углеводородных газов. Газоперерабатывающий завод включает блок очистки и осушки сырьевого газа, блок фракционирования, блок охлаждения 1, блок сепарации 2, систему острого орошения 3 и деметанизатор 4. При работе газоперерабатывающего завода очищенный и осушенный природный газ после блока очистки и осушки разделяют на два потока, первый поток направляют в блок 1, а второй поток подают в блок 2. В блок 1 в качестве хладагентов вводят и выводят метансодержащий газ и циркуляционные орошения, а охлажденный природный газ выводят в блок 2, в который в качестве хладагентов вводят и выводят метансодержащий газ, а также вводят метановую фракцию, и, кроме того, вводят и выводят второй поток очищенного осушенного природного газа. Из блока 2 выводят первый газ сепарации, который разделяют на первый и второй потоки. Кроме того, из блока 2 в деметанизатор 4 выводят первый остаток сепарации, флегму ...

Method for separating a feed gas in a column

A system and methods for processing a feed gas in a column are provided herein. A method includes feeding a feed gas into a port of a sleeve disposed around at least a portion of a periphery of the column. The sleeve includes a space between an outer wall of the column and an inner wall of the column. The sleeve releases the feed gas into the column through an opening disposed at an opposite end of the sleeve from the port.

METHOD FOR SEPARATING A FEED GAS IN A COLUMN

A system and methods for processing a feed gas in a column are provided herein. A method includes feeding a feed gas into a port of a sleeve disposed around at least a portion of a periphery of the column. The sleeve includes a space between an outer wall of the column and an inner wall of the column. The sleeve releases the feed gas into the column through an opening disposed at an opposite end of the sleeve from the port.

Method for separating a natural gas stream into a methane-enriched fraction and a fraction enriched in C2 and higher hydrocarbons

Method for purifying a feed gas stream comprising methane and hydrocarbons having at least two carbon atoms, comprising the following steps: step a): cooling the feed gas stream in a heat exchanger; step b): feeding the stream from step a) into a first phase separator pot to produce a liquid stream and a gas stream; step c): separating the gas stream from step b) in a membrane permeation unit, thereby producing at least one permeate gas stream and a partially condensed residual stream; step d): feeding the residual stream from step c) into a second phase separator pot to produce a liquid stream and a gas stream; step e): feeding at least a portion of the gas stream from step d) into a Joule Thomson expansion means; step f): heating at least a portion of the expanded stream from step e) by feeding it into the heat exchanger (2) implemented in step a), counter-current to the feed stream.

METHOD FOR SEPARATING A FEED GAS IN A COLUMN

A system and methods for processing a feed gas in a column are provided herein. A method includes feeding a feed gas into a port of a sleeve disposed around at least a portion of a periphery of the column. The sleeve includes a space between an outer wall of the column and an inner wall of the column. The sleeve releases the feed gas into the column through an opening disposed at an opposite end of the sleeve from the port.

Method for separating a feed gas in a column

A system and methods for processing a feed gas in a column are provided herein. A method includes feeding a feed gas into a port of a sleeve disposed around at least a portion of a periphery of the column. The sleeve includes a space between an outer wall of the column and an inner wall of the column. The sleeve releases the feed gas into the column through an opening disposed at an opposite end of the sleeve from the port.

Offgas stream direct contact condenser

Methods and systems for the dehydrogenation of hydrocarbons include a direct contact condenser to remove compounds from an offgas process stream. The reduction of compounds can decrease duty on the offgas compressor by removing steam and aromatics from the offgas. The dehydrogenation reaction system can be applicable for reactions such as the dehydrogenation of ethylbenzene to produce styrene, the dehydrogenation of isoamiline to produce isoprene, or the dehydrogenation of n-pentene to produce piperylene.

Vapor Stripping by Desublimation and Dissolution

Devices, methods, and systems for stripping a vapor from a gas are disclosed. A carrier gas is bubbled through a liquid coolant in a vessel. The vessel contains a mesh screen, packing materials, or combinations thereof. The carrier gas has a vapor component. The vapor component condenses, freezes, deposits, desublimates, or a combination thereof out of the carrier gas onto the mesh screen, the packing material, or combinations thereof, as a solid component. The solid component dissolves into the coolant as the coolant passes through the mesh screen, the packing material, or combinations thereof. 1. A method for stripping a vapor from a gas comprising:passing a carrier gas through a liquid coolant in a vessel, wherein the vessel comprises a mesh screen, packing material, or combinations thereof, and wherein the carrier gas comprises a vapor component;condensing, freezing, depositing, desublimating, or a combination thereof, the vapor component out of the carrier gas onto the mesh screen, the packing material, or combinations thereof, as a solid component; anddissolving the solid component into the coolant as the coolant passes through the mesh screen, the packing, or a combination thereof.2. The method of claim 1 , wherein the liquid coolant comprises water claim 1 , hydrocarbons claim 1 , liquid ammonia claim 1 , liquid carbon dioxide claim 1 , cryogenic liquids claim 1 , or combinations thereof.3. The method of claim 2 , wherein the hydrocarbons comprise 1 claim 2 ,1 claim 2 ,3-trimethylcyclopentane claim 2 , 1 claim 2 ,4-pentadiene claim 2 , 1 claim 2 ,5-hexadiene claim 2 , 1-butene claim 2 , 1-methyl-1-ethyl cyclopentane claim 2 , 1-pentene claim 2 , 5 claim 2 ,3 claim 2 ,3 claim 2 ,3-tetrafluoropropene claim 2 , 5 claim 2 ,3-dimethyl-1-butene claim 2 , 5-chloro-1 claim 2 ,1 claim 2 ,1 claim 2 ,2-tetrafluoroethane claim 2 , 5-methylpentane claim 2 , 3-methyl-1 claim 2 ,4-pentadiene claim 2 , 3-methyl-1-butene claim 2 , 3-methyl-1-pentene claim 2 , 3-methylpentane ...

PROCESS FOR UTILIZING OF MULTI STAGE COMPRESSORS INTERCOOLERS BLOWDOWN AS A COOLANT FOR PROCESS AIR

A system and a method for processing air prior to separating components of the air are disclosed. The system comprises an air cooler, one or more compression stages operated in series, and one or more intercoolers installed between two adjacent compression stages. A blowdown storage tank is configured to collect water blowdown from one or more intercoolers and provide cooling medium to the air cooler. Atmospheric air is first sprayed by the water blowdown in the air cooler to form a cooled air stream. The cooled air stream is subsequently compressed in the one or more compression stages and cooled by the intercoolers between two adjacent compression stages. The water blowdown from one or more of the intercoolers is collected and recycled as the cooling medium to cool the atmospheric air before it enters the first compression stage. 1. A method of processing air prior to separating components of the air , the method comprising:cooling the air with a cooling medium to produce cooled air;compressing the cooled air in a compressor unit that comprises one or more compression stages and one or more intercoolers to produce compressed process air; andcollecting water blowdown from the one or more intercoolers, wherein the water blowdown is used as the cooling medium.2. The method of claim 1 , wherein the compressor unit is a multi-stage compressor unit.3. The method of claim 2 , wherein the multi-stage compressor unit comprises at least two compression stages and at least one intercooler for cooling compressed air from the at least two compression stages.4. The method of claim 2 , wherein the multi-stage compressor unit comprises at least three compression stages in series and at least two intercoolers for cooling compressed air from the at least three compression stages.5. The method of claim 1 , further comprising claim 1 , before the cooling claim 1 , measuring humidity and temperature of the air claim 1 , wherein the step of cooling the air with a cooling medium is ...

배출가스 흐름 직접 접촉식 응축기

... 탄화수소를 탈수소화하기 위한 방법과 시스템은 배출가스 공정 흐름으로부터 화합물을 제거하기 위해 직접 접촉식 응축기를 포함한다. 화합물의 감소는 배출가스로부터 증기와 방향족 화합물을 제거하여 배출가스 압축기 상의 총 효율을 감소시킬 수 있다. 탈수소화 반응 시스템은, 스티렌을 제조하기 위한 에틸벤젠의 탈수소화, 이소프렌을 제조하기 위한 이소아밀린의 탈수소화, 또는 피페릴렌을 제조하기 위한 n-펜텐의 탈수소화와 같은 반응에 적용될 수 있다.

method for separating a stream of natural gas on a fraction enriched with methane and a fraction enriched in c2 and higher hydrocarbons

Offgas stream direct contact condenser

Gas Liquefaction Separator, Gas Liquefaction Recovery System, and Method for Separating and Recovering Ethylene Oxide

The present disclosure provides a gas liquefaction separator, a gas liquefaction recovery system, and a method for separating and recovering ethylene oxide. The gas liquefaction separator includes a housing, a blocking plate, a gas baffle, and a liquid collector, the latter three being located inside the housing. The liquid collector—an outer edge of which is connected to an inner wall of the housing—is located below the gas baffle, which is located below the blocking plate. The liquid collector includes a first flow guide surface, on a bottom portion of which is disposed a first hole. The gas baffle—an upper surface of which forms a second flow guide surface and an outer edge of which has a protrusion(s)—is connected to the first flow guide surface through the protrusion(s), thereby forming a second hole between the outer edge of the gas baffle and the first flow guide surface. 113.-. (canceled)14. A method for separating and recovering ethylene oxide , the method comprising:transporting a gas to be separated containing ethylene oxide into a gas liquefaction separator through a gas inlet of the gas liquefaction separator by a gas extraction device of a gas liquefaction recovery system;pressurizing an inner cavity of a housing of the gas liquefaction separator by a pressurization device to allow the ethylene oxide in the gas to be separated in the gas liquefaction separator to be compressed and liquefied, thereby obtaining a liquid ethylene oxide and a residual gas;discharging the residual gas through a gas outlet of the gas liquefaction separator; andcollecting the liquid ethylene oxide from a liquid outlet of the gas liquefaction separator.15. The method for separating and recovering ethylene oxide of claim 14 , wherein the steps of transporting the gas claim 14 , pressurizing the inner cavity claim 14 , and discharging the residual gas are repeated at least once before performing the step of collecting the liquid ethylene oxide.16. The method for separating and ...

OFFGAS STREAM DIRECT CONTACT CONDENSER

Method for separating a natural gas stream into a methane-enriched fraction and a fraction enriched in C2 and higher hydrocarbons

A process for purifying a feed gas including methane and heavy hydrocarbons, including: step a): cooling the feed gas in a heat exchanger; step b): introducing the resulting into a first phase separator to produce a liquid stream depleted in methane and enriched in heavy hydrocarbons and a gas stream; step c): separating the gas stream in a membrane from which a methane-enriched permeate stream and a partially condensed residue stream exit; step d): introducing the residue stream from step c) into a second phase separator vessel in order to produce a liquid stream and a gas stream; step e): introducing at least one portion of the gas stream resulting from step d) into a JT expansion means; and step f): heating at least one portion of the expanded stream in the heat exchanger used in step a) counter-current to the feed stream in order to cool the latter.

METHOD FOR SEPARATING A NATURAL GAS STREAM INTO A METHANE-ENRICHED FRACTION AND A FRACTION ENRICHED IN C2 AND HIGHER HYDROCARBONS

A process for purifying a feed gas including methane and heavy hydrocarbons, including: step a): cooling the feed gas in a heat exchanger; step b): introducing the resulting into a first phase separator to produce a liquid stream depleted in methane and enriched in heavy hydrocarbons and a gas stream; step c): separating the gas stream in a membrane from which a methane-enriched permeate stream and a partially condensed residue stream exit; step d): introducing the residue stream from step c) into a second phase separator vessel in order to produce a liquid stream and a gas stream; step e): introducing at least one portion of the gas stream resulting from step d) into a JT expansion means; and step f): heating at least one portion of the expanded stream in the heat exchanger used in step a) counter-current to the feed stream in order to cool the latter. 19.-. (canceled)10. A process for purifying a feed gas stream comprising methane and hydrocarbons containing at least two carbon atoms , comprising the following steps:Step a): cooling the feed gas stream in a heat exchanger;Step b): introducing the stream resulting from step a) into a first phase separator vessel in order to produce a liquid stream depleted in methane and enriched in hydrocarbons containing more than two carbon atoms and a gas stream;Step c): separating the gas stream resulting from step b) in a membrane permeation unit from which at least one methane-enriched gaseous permeate stream and one partially condensed residue stream enriched in hydrocarbons containing at least two carbon atoms exit;Step d): introducing the residue stream resulting from step c) into a second phase separator vessel in order to produce at least two phases including a liquid stream and a gas stream;Step e): introducing at least one portion of the gas stream resulting from stepd) into a Joule-Thomson expansion means;Step f): heating at least one portion of the expanded stream resulting from step e) by introduction into the heat ...

Offgas stream direct contact condenser

System and method for generating ozone by using liquid oxygen as well as liquefying and separating ozone

Gas liquefaction separator, gas liquefaction recovery system, and method for separating and recovering ethylene oxide

The present disclosure provides a gas liquefaction separator, a gas liquefaction recovery system, and a method for separating and recovering ethylene oxide. The gas liquefaction separator includes a housing, a blocking plate, a gas baffle, and a liquid collector, the latter three being located inside the housing. The liquid collector—an outer edge of which is connected to an inner wall of the housing—is located below the gas baffle, which is located below the blocking plate. The liquid collector includes a first flow guide surface, on a bottom portion of which is disposed a first hole. The gas baffle—an upper surface of which forms a second flow guide surface and an outer edge of which has a protrusion(s)—is connected to the first flow guide surface through the protrusion(s), thereby forming a second hole between the outer edge of the gas baffle and the first flow guide surface.

GAS-SOLID SEPARATING METHOD AND SYSTEM FOR SIMPLE SUBSTANCE SULPHUR IN SULPHUR-CONTAINING EXHAUST

The present invention discloses a gas-solid separating method and a gas-solid separating system for simple substance sulphur in sulphur-containing exhaust. The gas-solid separating method for simple substance sulphur in sulphur-containing exhaust comprises the following steps: first, cooling sulphur-containing exhaust at an extremely high speed; then, separating dust; finally, recycling a heavy liquid phase solvent and simple substance sulphur; according to the method disclosed by the present invention, the separating efficiency of the simple substance sulphur is up to 90 percent or above; moreover, the exhaust is further purified, and an environment pollution accident is avoided; in a separating process of the simple substance sulphur, the heavy liquid phase solvent of the simple substance sulphur evaporates to form a gas phase solvent which can be recycled as the liquid phase solvent for reusing through cooling, so that the sulphur removing cost is reduced. The system comprises a quick cooling system, a low-temperature washing and purifying system, a light liquid phase and heavy liquid phase separating system, a washing liquid recycling system and a simple substance sulphur recycling system. The system disclosed by the present invention has the advantages of stability and high efficiency in sulphur-containing exhaust treatment, high simple substance sulphur separating efficiency, energy conservation and environmental protection. 1. A gas-solid separating method for simple substance sulphur in sulphur-containing exhaust , comprising the following steps:S1. rapidly cooling the sulphur-containing exhaust to a temperature below 25° C. so that the simple substance sulphur vapor in the sulphur-containing exhaust is condensed into simple substance sulphur solid particles, and the simple substance sulphur solid particles and dust particles are settled to an extraction tank;S2. washing the exhaust at a low temperature, wherein the washing liquid is a low-temperature heavy ...

Method For Separating A Feed Gas In A Column

A system and methods for processing a feed gas in a column are provided herein. A method includes feeding a feed gas into a port of a sleeve disposed around at least a portion of a periphery of the column. The sleeve includes a space between an outer wall of the column and an inner wall of the column. The sleeve releases the feed gas into the column through an opening disposed at an opposite end of the sleeve from the port. 1. A method of controlling a temperature in a column , the method comprising feeding a feed gas into a port of a sleeve disposed around at least a portion of a periphery of the column , wherein:the sleeve comprises a space between an outer wall of the column and an inner wall of the column; andthe sleeve is configured to release the feed gas into the column through an opening disposed at an opposite end of the sleeve from the port.2. The method of claim 1 , wherein the feed gas comprises a COconcentration of less than about 16%.3. The method of claim 1 , wherein the sleeve is located in a zone of the column that is configured to freeze at least one component of the feed gas.4. The method of claim 1 , wherein the flow of the feed gas in the sleeve is configured to melt a solid that has accumulated on the inner wall of the column.5. The method of claim 1 , wherein the feed gas is fed into the sleeve at a temperature above a freezing temperature for at least one component in the feed gas.6. The method of claim 1 , wherein a concentration of COin the feed gas that is fed into the sleeve matches a concentration of COin a zone of the column that is configured to freeze at least one component of the feed gas.7. A method of separating an acid gas component from a raw natural gas stream in a column claim 1 , the method comprising:maintaining a temperature of a zone in the column below the freezing point of an acid gas component in a raw natural gas stream;feeding the raw natural gas stream at a temperature above the freezing point of the acid gas ...

METHOD FOR SEPARATING A FEED GAS IN A COLUMN

NATURAL GAS LIQUIDS STABILIZER WITH SIDE STRIPPER

The invention provides a process and system for processing natural gas and separating natural gas liquids into natural gasoline and a Y-grade liquid that meets specifications for low methane and ethane content. The process and system includes a side stripper and reboiler to separate methane and ethane from heavier hydrocarbons and a reboiler system to stabilize the natural gasoline. 1. A process for processing a stream containing natural gas liquids comprising:(a) sending said stream to a column;(b) removing a vapor comprising methane and ethane from a top of said column;(c) removing a portion of said stream from a middle section of said column and sending said portion to a side stripper to separate said middle portion into a light hydrocarbon vapor portion and a natural gas liquid product; and(d) removing a second portion of said stream from a bottom section of said column and sending said second portion to a stabilizer reboiler to separate said second portion into a stabilized gasoline product and a lighter hydrocarbon vapor portion to be returned to said column.2. The process of wherein said second portion of said stream contacts a liquid backup weir before exiting said column and being sent to said stabilizer reboiler.3. The process of wherein said stabilized gasoline product is a natural gasoline.4. The process of wherein said natural gas liquid product is a Y-grade natural gas liquid.5. A system for processing a stream containing natural gas liquids comprising:(a) a column for separating the stream into a vapor portion, a middle portion comprising propanes and butanes and a bottom portion containing natural gasoline;(b) a side stripper connected to a middle portion of said column and a side stripper reboiler for separating said propanes and butanes from lighter hydrocarbons; and(c) a stabilizer reboiler for removing lighter hydrocarbons from said natural gasoline.6. The system of wherein a propane/butane stream exits said side stripper reboiler that comprises ...

Offgas stream direct contact condenser

Methods and systems for the dehydrogenation of hydrocarbons include a direct contact condenser to remove compounds from an offgas process stream. The reduction of compounds can decrease duty on the offgas compressor by removing steam and aromatics from the offgas. The dehydrogenation reaction system can be applicable for reactions such as the dehydrogenation of ethylbenzene to produce styrene, the dehydrogenation of isoamiline to produce isoprene, or the dehydrogenation of n-pentene to produce piperylene.

Method for separating a feed gas in a column

A system and methods for processing a feed gas in a column are provided herein. A method includes feeding a feed gas into a port of a sleeve disposed around at least a portion of a periphery of the column. The sleeve includes a space between an outer wall of the column and an inner wall of the column. The sleeve releases the feed gas into the column through an opening disposed at an opposite end of the sleeve from the port.

Offgas stream direct contact condenser

Methods and systems for the dehydrogenation of hydrocarbons include a direct contact condenser to remove compounds from an offgas process stream. The reduction of compounds can decrease duty on the offgas compressor by removing steam and aromatics from the offgas. The dehydrogenation reaction system can be applicable for reactions such as the dehydrogenation of ethylbenzene to produce styrene, the dehydrogenation of isoamiline to produce isoprene, or the dehydrogenation of n-pentene to produce piperylene.

Offgas Stream Direct Contact Condenser

Methods and systems for the dehydrogenation of hydrocarbons include a direct contact condenser to remove compounds from an offgas process stream. The reduction of compounds can decrease duty on the offgas compressor by removing steam and aromatics from the offgas. The dehydrogenation reaction system can be applicable for reactions such as the dehydrogenation of ethylbenzene to produce styrene, the dehydrogenation of isoamiline to produce isoprene, or the dehydrogenation of n-pentene to produce piperylene.

Offgas stream direct contact condenser

Methods and systems for the dehydrogenation of hydrocarbons include a direct contact condenser to remove compounds from an offgas process stream. The reduction of compounds can decrease duty on the offgas compressor by removing steam and aromatics from the offgas. The dehydrogenation reaction system can be applicable for reactions such as the dehydrogenation of ethylbenzene to produce styrene, the dehydrogenation of isoamiline to produce isoprene, or the dehydrogenation of n-pentene to produce piperylene.

Offgas stream direct contact condenser

Methods and systems for the dehydrogenation of hydrocarbons include a direct contact condenser to remove compounds from an offgas process stream. The reduction of compounds can decrease duty on the offgas compressor by removing steam and aromatics from the offgas. The dehydrogenation reaction system can be applicable for reactions such as the dehydrogenation of ethylbenzene to produce styrene, the dehydrogenation of isoamiline to produce isoprene, or the dehydrogenation of n-pentene to produce piperylene.

Offgas Stream Direct Contact Condenser

Methods and systems for the dehydrogenation of hydrocarbons include a direct contact condenser to remove compounds from an offgas process stream. The reduction of compounds can decrease duty on the offgas compressor by removing steam and aromatics from the offgas. The dehydrogenation reaction system can be applicable for reactions such as the dehydrogenation of ethylbenzene to produce styrene, the dehydrogenation of isoamiline to produce isoprene, or the dehydrogenation of n-pentene to produce piperylene. 110-. (canceled)11. A method for the dehydrogenation of hydrocarbons comprising:contacting a hydrocarbon feedstock with a dehydrogenation catalyst within a reactor under reaction conditions effective to dehydrogenate at least a portion of said hydrocarbon feedstock in a dehydrogenation reaction;removing an offgas stream that comprises hydrogen from the reactor;providing a direct contact condenser capable of circulating a cooling medium and contacting the offgas stream with the cooling medium;cooling the offgas stream in the direct contact condenser to enable the condensation of compounds from the offgas stream;removing from the direct contact condenser a cooled offgas stream having a reduced content of condensable compounds as compared to the offgas stream prior to contact with the cooling medium.12. The method of claim 11 , further comprising:supplying steam to the dehydrogenation reaction in a steam to hydrocarbon molar ratio of at least 4:1; andoperating the reactor at a temperature of at least 300° C.13. The method of claim 11 , further comprising:operating the reactor at vacuum conditions wherein substantially all of the hydrocarbons are in a vapor phase; andrecovering a vapor product from the reactor comprising dehydrogenated product.14. The method of claim 11 , wherein the offgas stream comprises styrene offgas from an ethylbenzene reaction system.15. The method of claim 11 , wherein the cooling medium comprises chilled water.16. The method of claim 15 , ...

Offgas stream direct contact condenser

オフガス流直接接触型凝縮器

Multistage cyclonic fluid separator

The invention relates to a cyclonic fluid separator comprising a throat portion ( 4 ) which is arranged between a converging fluid inlet section and a diverging fluid outlet section. The cyclonic fluid separator is arranged to facilitate a cyclonic flow through the converging fluid inlet section and the throat portion towards the diverging fluid outlet section in a downstream direction. The diverging fluid outlet section comprises an inner primary outlet conduit ( 7 ) for condensable depleted fluid components and an outer secondary outlet conduit ( 6 ) for condensable enriched fluid components. The cyclonic fluid separator comprises a further outer secondary outlet conduit ( 16 ). The outer secondary outlet conduit ( 6 ) is positioned on a first position along a central axis (I) of the cyclonic fluid separator and the further outer secondary outlet conduit ( 16 ) is positioned on a second position along the central axis (I) of the cyclonic fluid separator.

Process for separating and recovering NGLs from hydrocarbon streams

This process comprises using unconventional processing of hydrocarbons, e.g. natural gas, for recovering C2+ and NGL hydrocarbons that meet pipeline specifications, without the core high capital cost requirement of a demethanizer column, which is central to and required by almost 100% of the world's current NGL recovery technologies. It can operate in Ethane Extraction or Ethane Rejection modes. The process uses only heat exchangers, compression and simple separation vessels to achieve specification ready NGL. The process utilizes cooling the natural gas, expansion cooling, separating the gas and liquid streams, recycling the cooled streams to exchange heat and recycling selective composition bearing streams to achieve selective extraction of hydrocarbons, in this instance being NGLs. The compactness and utility of this process makes it feasible in offshore applications as well as to implementation to retrofit/revamp or unload existing NGL facilities. Many disparate processes and derivatives are anticipated for its use.

Method for separating components of a gas

A method is disclosed for separating components of a gas. A feed gas stream is cooled in the first vessel. The feed gas stream comprises methane, carbon dioxide, and a secondary component. A first portion of the secondary component condenses, desublimates, or a combination thereof to form a primary stream, resulting in a first depleted gas stream. The first depleted gas stream is cooled in a condensing exchanger such that a first portion of the methane condenses as a first liquid methane stream, resulting in a second depleted gas stream. The second depleted gas stream is cooled in the second vessel such that a first portion of the carbon dioxide desublimates to form a solid product stream, resulting in a third depleted gas stream.

METHODS AND APPARATUS FOR MECHANICAL SEPARATION OF CO2

A method for the separation of liquid COfrom a 2 phase feed stream, the process comprising the steps of: cooling the feed stream to a cryogenic temperature; expanding the cooled stream so as to further lower the temperature of the feed through expansion; mechanically separating the expanded stream, using a mechanical separator, into a gas phase and a liquid COphase, and; venting the gas phase and outflowing the liquid CO. 1. A method for the separation of liquid COfrom a 2 phase feed stream , the process comprising the steps of:cooling the feed stream to a cryogenic temperature;expanding the cooled stream so as to further lower the temperature of the feed through expansion;{'sub': '2', 'mechanically separating the expanded stream, using a mechanical separator, into a gas phase and a liquid COphase; and'}{'sub': '2', 'venting the gas phase and outflowing the liquid CO.'}2. The method of claim 1 , further including a separator intermediate the expanding step and the mechanical separating step;said separating step including venting a gas stream from the separator and outflowing a liquid stream to the mechanical separator.3. The method according to claim 1 , further including a re-cooling step simultaneously with the mechanical separating step claim 1 , wherein the re-cooling step includes passing an outflow of liquid CO2 from the mechanical separator through a re-cooling stage and inflowing the re-cooled liquid phase back through mechanical separator.4. The method according to claim 2 , wherein venting of the gas stream from the separator is to a first mechanical separator and outflowing of the liquid stream is to a second mechanical separator.5. The method according to claim 4 , including the steps of the first mechanical separator venting a gas stream claim 4 , and outflowing a liquid stream to the second mechanical separator.6. The method according to claim 4 , including the steps of the second mechanical separator outflowing a liquid CO2 stream claim 4 , and ...

SYSTEM AND METHOD FOR TREATING ASSOCIATED GAS

A system and method for treating associated gas in which a stream of raw gas is passed through safety valving, an inlet pressure control mechanism, and an inlet scrubber. Pressure/temperature data is transmitted to a control system via pressure and temperature transducers. The raw gas is sent to a gas compressor to generate pressurized gas, which is sent to an aerial cooler and a chiller heat exchanger, in which a chilling media contacts the pressurized gas. The chilled pressurized gas is sent to a vapor liquid separator to generate processed gas, which is routed through either a system backpressure valve or a pressure reducing recycle valve that directs the processed gas to the inlet scrubber. The processed gas that has passed through the system backpressure valve is delivered as fuel or routed through a backpressure regulating recycle valve that directs the processed gas to a system inlet pressure reducing valve. 1. A method for treating associated gas comprising:(a) providing a stream of raw gas;(b) passing the stream of raw gas through safety valving;(c) passing the raw gas through an inlet pressure control mechanism to control a flow rate of the raw gas;(d) passing the raw gas through an inlet scrubber;(e) transmitting pressure and temperature data for the raw gas to a control system via a pressure transducer and a temperature transducer that are located on the inlet scrubber;(f) sending the raw gas to a gas compressor to generate pressurized gas;(g) sending the pressurized gas to an aerial cooler that uses ambient air to reduce a temperature of the pressurized gas to a desired setpoint;(h) sending the pressurized gas to a chiller heat exchanger, wherein a chilling media cooled by a refrigeration system to a desired setpoint contacts the pressurized gas through the chiller heat exchanger to further reduce the temperature of the pressurized gas, thereby generating chilled pressurized gas;(i) sending the chilled pressurized gas to a vapor liquid separator to ...

SYSTEMS AND METHODS FOR CAPTURING NATURAL GAS LIQUIDS FROM OIL TANK VAPORS

A hydrocarbon vapor capture and processing system is disclosed to reduce both carbon emissions and conventional pollution, while producing financial returns by turning waste vapors into high quality NGLs. In one embodiment, the hydrocarbon vapor is sent to a compressor for compression. Compressed vapor is then cooled via an air cooler, before being condensed by a refrigerator to form a liquid. The resulting two-phase flow is then separated into a dry gas stream and a liquid stream using a cyclonic separator. The dry gas stream may be transmitted as a light gas to sales line. The resulting liquid stream is passed to a stripping column to produce NGLs. The system offers great benefits to the environment and public health, by providing a technology that drastically cuts carbon emissions and noxious pollution, while incentivizing drillers to implement such measures through its ability to produce revenue. 1. An apparatus to capture natural gas liquids (NGLs) from oil tanks , comprising:a compressor to withdraw hydrocarbon vapors from the oil tanks; anda cooling system to condense liquids from said hydrocarbon vapors resulting in a natural gas liquids (NGLs) stream and a light gas stream.2. The apparatus of claim 1 , wherein the compressor is connected to a refrigerated evaporator to condense liquid components of the hydrocarbon vapors.3. The apparatus of claim 2 , wherein the refrigerated evaporator is connected to a cyclonic separator.4. The apparatus of claim 3 , wherein liquid product from the cyclonic separator connects into a stripping column warmed from below by a reboiler.5. The apparatus of claim 4 , wherein the stripping column and the reboiler remove dissolved air claim 4 , methane claim 4 , and excess ethane from the hydrocarbon vapors.6. The apparatus of claim 5 , wherein the cyclonic separator claim 5 , the stripping column and the reboiler are integrated into a single unit.7. The apparatus of claim 6 , wherein the compressor is powered by the light gas ...

Methods and Equipment for Treatment of Odorous Gas Steams

A method for removing noxious, hazardous, toxic, mutagenic, and/or carcinogenic compounds and/or precursor compounds from a comingled gas, liquid and/or solid stream is described. In one embodiment, the method includes optionally passing the stream through an ambient temperature condenser followed by passing the stream through a spray venturi scrubber, a chilled condenser, a gas/solid separator, and a series of wet scrubbers to remove at least a portion of the compounds. 1. A method for removing odorous compounds from a gas stream comprising , comprising:condensing a gas stream comprising a plurality of vaporous odorous compounds and water vapor to condense and remove at least a portion of the water vapor and at least a portion of the odorous compounds from the gas stream, thereby producing a condensed vapor stream;passing the condensed vapor stream, after said condensing, through a particulate collection device to remove entrained particles from the condensed vapor stream; andpassing the condensed vapor stream, after said passing through the particulate collection device, through a gas/liquid contactor to remove at least a portion of said vaporous odorous compounds from said condensed vapor stream.2. The method of claim 1 , wherein said condensing comprising condensing at ambient temperature.3. The method of claim 1 , wherein said condensing comprising condensing at a temperature below ambient.4. The method of claim 1 , wherein the entrained particles comprise condensed vaporous odorous compounds.5. The method of claim 1 , further comprising condensing the condensed vapor stream claim 1 , before said passing through the particulate collection device to condense and remove at least another portion of the vaporous odorous compounds from the condensed vapor stream.6. The method of claim 1 , further comprising passing the condensed vapor stream through a gas/solids separator before said passing through a particulate collection device.7. The method of claim 6 , wherein ...

SYSTEM AND METHOD FOR PROCESSING A HYDROCARBON-COMPRISING FLUID

Systems and methods for liquefying a gaseous fluid that comprises at least 50% by volume methane into a liquefied fluid that comprises at least 85% by volume methane. Processing can include increasing a pressure of the incoming gaseous fluid to between 10 and 50 bar; pre-treating the gaseous fluid using membrane filtering to a retentate stream having a methane content of at least 85% by volume; liquefying the retentate stream by cryogenic cooling to a temperature between −100° C. and −140° C.; flashing the liquefied fluid into a container; retrieving processed liquid fluid at a first container level at a pressure of between 1 and 10 bar, a temperature of between −120° C. and −160° C., and a methane concentration of at least 85% by volume into a storage device; and retrieving a slurry flow comprising solid COand water ice at a second container level below the first container level. 121.-. (canceled)22. A method for processing a gaseous fluid , said method comprising:providing an incoming gaseous fluid comprising at least 50% by volume methane;increasing a pressure of said incoming gaseous fluid;liquefying a stream derived from the pressurized gaseous fluid, said liquefying comprising cryogenic cooling said stream to liquefied fluid having a temperature between −100° C. and −140° C., a pressure of between 10 and 50 bar, and a methane content of at least 85% by volume; a processed liquid fluid at a first container level at a pressure of between 1 and 10 bar, a temperature of between −120° C. and −160° C. and a methane concentration of at least 85% by volume,', {'sub': '2', 'a slurry flow comprising solid COand water ice at a second container level below said first container level, and'}, 'a flash gas stream at a level above said first container level;, 'flashing said liquefied fluid into a container, retrieving from said containercharacterized inincreasing said pressure of said incoming gaseous fluid to between 10 and 50 bar;before liquefying said stream derived from ...

Method to Recover LPG and Condensates from Refineries Fuel Gas Streams

A method to recover olefins and C 2 + fractions from refineries gas streams. The traditional recovery methods employed at refineries are absorption with solvents and cryogenic technology using compression and expansion aided by external refrigeration systems. In contrast to known methods, there is provided first a pre-cooling heat exchanger on a feed line feeding the gas stream to a in-line mixer, secondly by injecting and mixing a stream of LNG to condense the C 2 + fractions upstream of the fractionator. The temperature of the gas stream entering the fractionator is monitored downstream of the in-line mixer. A LNG stream is temperature controlled to flow through the injection inlet and mix with the feed gas at a temperature which results in the condensation of the C 2 + fractions before entering the fractionator. A LNG reflux stream is temperature controlled to maintain fractionator overhead temperature. The fractionator bottoms temperature is controlled by a circulating reboiler stream.

Partial open-loop nitrogen refrigeration process and system for an oil or gas production operation

A method for cooling a hydrocarbon production stream such as natural gas uses cryogenic nitrogen as a cooling medium (“refrigerant”) wherein only a portion of a nitrogen refrigerant stream is recovered, with a vapor portion of the nitrogen refrigeration stream being vented from the system. Unlike a conventional sacrificial nitrogen refrigeration process which vents all the nitrogen refrigerant after cooling a production stream, the method comprise means for recovering some of the nitrogen refrigerant thereby improving the operating efficiency of the process compared to conventional sacrificial nitrogen refrigeration processes. Also unlike conventional closed loop nitrogen refrigeration processes which recover all of the nitrogen refrigerant after cooling a production stream, the method can recover nitrogen refrigerant without the complex and costly equipment used in closed loop systems to compress nitrogen vapor.

Method and system of dehydrating a feed stream processed in a distillation tower

The present disclosure provides a method of dehydrating a feed stream processed in a distillation tower. The method may include (a) introducing a feed stream comprising a first contaminant stream into a distillation tower; (b) forming a solid from the feed stream in a controlled freeze zone section of the distillation tower; (c) feeding a second contaminant stream into the feed stream outside the distillation tower; and (d) removing water from the feed stream with a second contaminant stream by feeding the second contaminant stream.

METHOD OF REMOVING SOLIDS BY MODIFYING A LIQUID LEVEL IN A DISTILLATION TOWER

The present disclosure provides a method of separating a feed stream in a distillation tower. The method includes maintaining a controlled freeze zone section in a distillation tower; maintaining a melt tray assembly within the controlled freeze zone section that operates at a temperature and pressure at which solid melts; forming solids in a controlled freeze zone section; raising a liquid level of a liquid in the melt tray assembly when the solids accumulate on a mechanical component in the controlled freeze zone section; raising a liquid temperature of the liquid while raising the liquid level; and lowering the liquid level after at least one of (a) a predetermined time period has passed and (b) an alternative temperature of the mechanical component is within an expected temperature range of a baseline temperature of the mechanical component. 1. A method of separating a feed stream in a distillation tower comprising:maintaining a controlled freeze zone section in a distillation tower that operates at a temperature and pressure at which a solid forms;maintaining a melt tray assembly within the controlled freeze zone section that operates at a temperature and pressure at which the solid melts;forming solids in the controlled freeze zone section;raising a liquid level of a liquid in the melt tray assembly when the solids accumulate on a mechanical component in the controlled freeze zone section;raising a liquid temperature of the liquid while raising the liquid level; andlowering the liquid level after at least one of (a) a predetermined time period has passed and (b) an alternative temperature of the mechanical component is within an expected temperature range of a baseline temperature of the mechanical component.2. The method of claim 1 , wherein raising the liquid level comprises determining whether the solids have accumulated on the mechanical component.3. The method of claim 1 , wherein the mechanical component comprises a controlled freeze zone wall.4. The ...

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. 1. A method for separating a feed stream in a distillation tower , the method comprising: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 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., 'accumulating a liquid in the melt tray assembly until the liquid is at a predetermined liquid level in the controlled freeze zone section, by2. The method of claim 1 , wherein feeding the second contaminant occurs at least one of before and after introducing the feed stream.3. The method of claim 1 , wherein feeding the second contaminant comprises at least one of directly feeding the second contaminant to the controlled freeze zone section and indirectly feeding the second ...

METHOD AND DEVICE FOR SEPARATING HYDROCARBONS AND CONTAMINANTS WITH A HEATING MECHANISM TO DESTABILIZE AND/OR PREVENT ADHESION OF SOLIDS

The present disclosure provides a method for separating a feed stream in a distillation tower which includes separating a feed stream in a stripper section into an enriched contaminant bottom liquid stream and a freezing zone vapor stream; contacting the freezing zone vapor stream in the controlled freeze zone section with a freezing zone liquid stream at a temperature and pressure at which a solid and a hydrocarbon-enriched vapor stream form; directly applying heat to a controlled freeze zone wall of the controlled freeze zone section with a heating mechanism coupled to at least one of a controlled freeze zone internal surface of the controlled freeze zone wall and a controlled freeze zone external surface of the controlled freeze zone wall; and at least one of destabilizing and preventing adhesion of the solid to the controlled freeze zone wall with the heating mechanism. 1. A method for separating a feed stream in a distillation tower comprising:introducing a feed stream into one of a stripper section and a controlled freeze zone section of a distillation tower, the feed stream comprising a hydrocarbon and a contaminant;separating the feed stream in the stripper section into an enriched contaminant bottom liquid stream, comprising the contaminant, and a freezing zone vapor stream, comprising the hydrocarbon, at a temperature and pressure at which no solid forms;contacting the freezing zone vapor stream in the controlled freeze zone section with a freezing zone liquid stream, comprising the hydrocarbon, at a temperature and pressure at which a solid, comprising the contaminant, and a hydrocarbon-enriched vapor stream, comprising the hydrocarbon, form;directly applying heat to a controlled freeze zone wall of the controlled freeze zone section with a heating mechanism coupled to at least one of a controlled freeze zone internal surface of the controlled freeze zone wall and a controlled freeze zone external surface of the controlled freeze zone wall; andat least ...

Method and system for treating a flow back fluid exiting a well site

The present invention relates to a method and system for treating a flow back fluid exiting a well site following stimulation of a subterranean formation. More specifically, the invention relates to processing the flow back fluid, and separating into a carbon dioxide rich stream and a carbon dioxide depleted stream, and continuing the separation until the carbon dioxide concentration in the flow back stream until the carbon dioxide concentration in the flow back gas diminishes to a point selected in a range of about 50-80 mol % in carbon dioxide concentration, after which the lower concentration carbon dioxide flow back stream continues to be separated into a carbon dioxide rich stream which is routed to waste or flare, and a hydrocarbon rich stream is formed.

METHOD AND SYSTEM FOR COOLING AND SEPARATING A HYDROCARBON STREAM

The present invention relates to a method of cooling and separating a hydrocarbon stream: (a) passing an hydrocarbon feed stream () through a first cooling and separation stage to provide a methane enriched vapour overhead stream () and a methane depleted liquid stream (); (b) passing the methane depleted liquid stream () to a fractionation column () to obtain a bottom condensate stream (), a top stream enriched in C1-C2 () and a midstream enriched in C3-C4 (), (c) cooling the upper part of the fractionation column () by a condenser (), (d) obtaining a split stream () from the methane enriched vapour overhead stream () and obtaining a cooled split stream () by expansion-cooling the split stream (), (e) providing cooling duty to the top of the fractionation column () using the cooled split stream (). 1. A method of cooling and separating a hydrocarbon stream , comprising at least the steps of:(a) passing an hydrocarbon feed stream through a first cooling and separation stage to provide a methane enriched vapour overhead stream and a methane depleted liquid stream;(b) passing the methane depleted liquid stream to a fractionation column to separate the methane depleted liquid stream in a bottom condensate stream, a top stream enriched in C1-C2 and a midstream enriched in C3-C4,(c) cooling the upper part of the fractionation column by a condenser,(d) splitting the methane enriched vapour overhead stream in a main overhead stream and a split stream and obtaining a cooled split stream by expansion-cooling the split stream,(e) feeding a condenser feed stream to the condenser, the condenser feed stream comprising the cooled split stream, to provide cooling duty to the top of the fractionation column.2. Method according to claim 1 , wherein obtaining a cooled split stream is done by passing the split stream through an expander or valve to obtain the cooled split stream.3. Method according to claim 1 , wherein the method comprises(f) feeding a feed stream to a second cooling ...

System for recovering natural gas liquid from low pressure source

A system (102; 302) for recovering natural gas liquid from a low pressure gas source (110; 310), comprising a gas/gas heat exchanger (104; 304), fluid from the gas source flowing therethrough; at least one separator (108; 308) for receiving the fluid from the gas/gas heat exchanger (104; 304) and separating liquid from the gas, the gas being directed via a connecting pipe (116; 316) to the gas/gas heat exchanger (104; 304) where it cools the fluid from the gas source; characterised in that the connecting pipe (116; 316) includes expansion means (106; 322) for cooling the gas therein and liquid injection means (120; 320) for saturating the gas with liquid.

WATER REMOVAL AND HEAVY-HYDROCARBON REMOVAL PROCESS IN LIQUEFIED NATURAL GAS PRODUCTION FROM MIXED GAS RICH IN METHANE

A process for dehydrating and removing heavy hydrocarbons in the production of liquefied natural gas from a methane-rich gas mixture is disclosed, wherein the methane-rich gas mixture subjected to deacidification treatment is divided into two streams, i.e. the first stream and the second stream, wherein the first stream used as a system process gas is introduced into a drying procedure, and the second stream used as regenerating gas is introduced into a regenerating procedure; the first stream is subjected to a drying treatment, and the moisture and the heavy hydrocarbons are simultaneously removed from the first stream in a composite adsorbent bed(s) of a drying tower, wherein the moisture is removed such that the dew point at normal pressure is ≦−76° C. and the heavy hydrocarbon components of C6 and higher are removed such that the content of these components is ≦217 ppm; and the second stream is used as a regenerating gas in the regenerating procedure of the above-mentioned drying tower, subjected to a regenerating process, and then returned as a part of the system process gas. Comparing to those conventional processes, the present invention can achieve good purifying effect, lower equipment investment and late-stage energy consumption of the system, increase utilization ratio of feed gas, and the operation target of each unit becomes more clear and easy to control. The present invention further relates to an apparatus for carrying out the process. 1. A process for dehydrating and removing heavy hydrocarbons in the production of liquefied natural gas from a methane-rich gas mixture , characterized in that:the methane-rich gas mixture subjected to deacidification treatment is divided into two streams, i.e. the first stream and the second stream, wherein the first stream used as a system process gas is introduced into a drying procedure, and the second stream used as regenerating gas is introduced into a regenerating procedure;the first stream is subjected to a ...

NOx Removal Method

The invention relates to mixtures comprising molecular hydrogen, hydrocarbons, and nitrogen oxides; to processes for removing at least a portion of the nitrogen oxides therefrom; to equipment useful in such processes; and to the use of such hydrocarbons for, e.g., chemical manufacturing.

METHOD OF REMOVING CO2 FROM A CONTAMINATED HYDROCARBON STREAM

The present invention provides a method to separate CO2 from a contaminated hydrocarbon-containing stream. The method comprises obtaining a multiphase contaminated hydrocarbon-containing stream () containing at least a vapour phase, a liquid phase and a solid phase, creating a slurry stream () from the multiphase stream. The slurry stream is fed to a crystallization chamber comprising CO2 seed particles. A liquid hydrocarbon stream () is obtained from the crystallization chamber () and a concentrated slurry () is obtained. The concentrated slurry () is removed from the crystallization chamber () by means of an extruder (), thereby obtaining solid CO2. A feedback stream () is obtained from the solid CO2 comprising CO2 seed particles having an average size greater than 100 micron. The feedback stream () is passed into the crystallization chamber (). 1. A method to separate CO2 from a contaminated hydrocarbon-containing stream; the method comprising(a) providing a multiphase contaminated hydrocarbon-containing stream, from the contaminated hydrocarbon-containing stream, the multiphase contaminated hydrocarbon-containing stream containing at least a liquid phase and a solid phase, wherein the solid phase comprises CO2 particles;(b1) feeding a slurry stream obtained from the multiphase contaminated hydrocarbon-containing stream to a crystallization chamber, the crystallization chamber comprising seed particles, the seed particles comprising CO2;(b2) obtaining a liquid hydrocarbon stream from the crystallization chamber, thereby forming a concentrated slurry in the crystallization chamber;(b3) removing the concentrated slurry from the crystallization chamber by means of an extruder and obtaining a CO2 enriched solid product and a methane enriched liquid hydrocarbon stream from the extruder.2. The method according to claim 1 , wherein the method further comprises(b4) obtaining a CO2 feedback stream from the CO2 enriched solid product obtained in (b3), the feedback stream ...

Integrated Nitrogen Removal in the Production of Liquefied Natural Gas Using Intermediate Feed Gas Separation

A method and apparatus for liquefying a natural gas feed stream and removing nitrogen therefrom to produce a nitrogen-depleted LNG product, in which a natural gas feed stream is fed into the warm end of a main heat exchanger, cooled and at least partially liquefied, withdrawn from an intermediate location of the main heat exchanger and separated to form a nitrogen-enriched natural gas vapor stream and a nitrogen-depleted natural gas liquid stream, the liquid and vapor streams being reintroduced into an intermediate location of the main heat exchanger and further cooled in parallel to form a first LNG stream and a first at least partially liquefied nitrogen-enriched natural gas stream, respectively. 1. A method for producing a nitrogen-depleted LNG product , the method comprising:(a) introducing a natural gas feed stream into the warm end of a main heat exchanger, cooling and at least partially liquefying the natural gas feed stream, and withdrawing the cooled and at least partially liquefied stream from an intermediate location of the main heat exchanger;(b) expanding, partially vaporizing and separating the cooled and at least partially liquefied stream to form a nitrogen-enriched natural gas vapor stream and a nitrogen-depleted natural gas liquid stream;(c) withdrawing a portion of the nitrogen-enriched natural gas vapor stream to form a stripping gas stream;(d) separately re-introducing a remaining portion of the nitrogen-enriched natural gas vapor stream and the nitrogen-depleted natural gas liquid stream into an intermediate location of the main heat exchanger to further cooling the remaining portion of the nitrogen-enriched natural gas vapor stream and the nitrogen-depleted natural gas liquid stream in parallel, the remaining portion of the nitrogen-enriched natural gas vapor stream being further cooled and at least partially liquefied to form a first at least partially liquefied nitrogen-enriched natural gas stream and the nitrogen-depleted natural gas liquid ...

METHOD FOR CRYOGENICALLY SEPARATING A NATURAL GAS STREAM

A method for cryogenically separating a natural gas supply stream into a gas containing the most volatile compounds of the supply stream, and a liquid product containing the heaviest compounds at least including the following. Introducing an at least partially condensed stream into an absorption column at an introduction stage in the lower part of said absorption column, thus producing, at the top, a gaseous stream that contains the most volatile compounds and, the bottom, a liquid product. Introducing the liquid product into a fractionation column in order to obtain, in the bottom of the fractionation column, a liquid product that contains the heaviest compounds of the supply stream and, at the top of the fractionation column, a distillate that is at least partially condensed in a second heat exchanger system 15.-. (canceled)6. A process for the cryogenic separation of a natural gas feed stream into a gas containing the most volatile compounds of the feed stream and into a liquid product containing the heaviest compounds of the feed stream , comprising at least the following stages:Stage a): at least partial condensation of a natural gas feed stream in a first heat-exchange system;Stage b): introduction of the at least partially condensed stream resulting from stage a) into an absorption column at an introduction level located in the lower part of said absorption column, said absorption column producing, at the top, a gas stream containing the most volatile compounds and, at the bottom, a liquid product;Stage c): introduction of the liquid product resulting from stage b) into a fractionation column in order to obtain, in the fractionation column bottom, a liquid product containing the heaviest compounds of the feed stream and, at the fractionation column top, a distillate, at least partially condensed in a second heat-exchange system;Stage d): introduction, at a level located in the upper part of the absorption column, of the gas phase of the condensed distillate ...

Thermoacoustic refrigerator

A thermoacoustic refrigerator includes at least one pair of pulse combustion tubes ( 10 ), preferably Rijke tubes, each tube ( 10 ) having a pair of spaced-apart Stirling engines ( 12 ), coupled together but with no separating membrane therebetween.

Method and system for preparing a lean methane-containing gas stream

The invention relates to a method and system of preparing a lean methane-containing gas stream (22), comprising: —feeding a hydrocarbon feed stream (10) into a separator (100); —withdrawing from the separator (100) a liquid bottom stream (12); —passing the liquid bottom stream (12) to a stabilizer column (200); —withdrawing from the stabilizer column (200) a stabilized condensate stream (13) enriched in pentane, —withdrawing from the stabilizer column (200) a stabilizer overhead stream (14) enriched in ethane, propane and butane; —splitting the stabilizer overhead stream (14) according to a split ratio into a main stream portion (15) and a slip stream portion (16), —passing the slip stream portion (16) to a fractionation unit (300) to obtain an ethane enriched stream (17) and a bottom stream enriched in propane and butane (18).

Process and System for Recovering Natural Gas Liquids (NGL) from Flare Gas Using Joule-Thomson (J-T) Cooling and Membrane Separation

A process and system for recovering natural gas liquids (NGL) using a combination of J-T cooling and membrane separation. The process involves compressing, separating, and cooling a flare gas stream comprising at least methane and C hydrocarbons prior to being introduced to a J-T valve. The cooled stream exiting the J-T valve is further separated, producing a NGL product stream and an uncondensed gas stream. The uncondensed gas stream is directed to a membrane separation step, which results in a C hydrocarbon enriched stream and a C hydrocarbon depleted stream. The C hydrocarbon enriched stream may be recycled back to the process to recover more NGL. 1. A process for treating a flare gas stream , the flare gas stream comprising at least methane and C hydrocarbons , and the process comprising the following steps:(a) compressing the flare gas stream with a compressor to produce a compressed gas stream;{'sub': 3+', '3+, '(b) separating the compressed stream in a first separation unit into a first hydrocarbon liquid stream enriched in C hydrocarbons relative to the compressed stream and a first gas stream depleted in C hydrocarbons relative to the compressed stream;'}{'sub': '3+', '(c) cooling said first gas stream depleted in C hydrocarbons in a heat-exchange unit to produce a cooled gas stream;'}(d) directing the cooled gas stream through a Joule-Thomson valve to produce an expanded gas stream;{'sub': 3+', '3+, '(e) routing the first hydrocarbon liquid stream and the expanded gas stream to a second separation unit to separate a second hydrocarbon liquid stream enriched in C hydrocarbons relative to the expanded gas stream and a second gas stream depleted in Chydrocarbons relative to the expanded gas stream;'}{'sub': '3+', '(f) heating the second gas stream depleted in C hydrocarbons by heat exchange against the uncondensed gas stream in the heat-exchange unit of step (c) to generate a heated gas stream;'}{'sub': '3+', '(g) passing the heated gas stream as a feed ...

PURIFICATION AND LIQUEFACTION OF BIOGAS BY COMBINATION OF A CRYSTALLIZATION SYSTEM WITH A LIQUEFACTION EXCHANGER

Plant and process for the production of liquid methane from a feed gas stream comprising at least methane and carbon dioxide. A feed gas stream is injected into a COcrystallizer in countercurrent fashion against a stream of predominantly liquid methane, thereby crystallizing amounts of carbon dioxide from the feed gas stream. Gaseous methane recovered from the COcrystallizer is liquefied at a liquefaction exchanger. 1. A plant for the production of liquid methane from a feed gas stream comprising at least methane and carbon dioxide , said plant comprising , in the direction of circulation of the gas stream:a continuously operating system for the crystallization of carbon dioxide in which a stream predominantly comprising liquid methane is circulated countercurrentwise to the feed gas stream, thereby producing a methane-enriched gas stream; anda liquefaction exchanger adapted and configured to liquefy the produced methane-enriched gas stream exiting from the crystallization system.2. The plant of claim 1 , further comprising claim 1 , upstream of the crystallization system claim 1 , at least two heat exchangers adapted and configured to bring the feed gas stream to a temperature of between −50° C. and −85° C.3. The plant of claim 2 , wherein the at least two exchangers are arranged in parallel and each following a cycle comprising a production stage and a regeneration stage claim 2 , with claim 2 , at each moment of the cycle claim 2 , an exchanger in the production stage and an exchanger in the regeneration stage.4. The plant of claim 2 , further comprising claim 2 , upstream of the at least two heat exchangers a water condensation exchanger adapted and configured to bring the feed gas stream to a temperature of between 0° C. and 20° C.5. The plant of claim 1 , further comprising:a pipe connected to a bottom of the crystallization system; and{'sub': '2', 'a filter disposed in the pipe adapted and configured to separate liquid and solid phases, thereby enabling ...

Process and System for Recovering Natural Gas Liquids (NGL) from Flare Gas Using Joule-Thomson (J-T) Cooling and Membrane Separation

A process and system for recovering natural gas liquids (NGL) using a combination of J-T cooling and membrane separation. The process involves compressing, separating, and cooling a flare gas stream comprising at least methane and Chydrocarbons prior to being introduced to a J-T valve. The cooled stream exiting the J-T valve is further separated, producing a NGL product stream and an uncondensed gas stream. The uncondensed gas stream is directed to a membrane separation step, which results in a C hydrocarbon enriched stream and a Chydrocarbon depleted stream. The Chydrocarbon enriched stream may be recycled back to the process to recover more NGL. 1. A system for recovering natural gas liquids from flare gas , comprising:(a) a compressor including a gas mixture stream inlet and a compressed gas outlet;(b) a first separation unit including a compressed gas inlet, a first hydrocarbon liquid stream outlet, and a first gas stream outlet, wherein the compressed gas inlet is in gas communication with the compressed gas outlet;(c) a heat-exchanger including a first gas stream inlet, a cooled gas stream outlet, a second gas stream inlet, and a heated gas stream outlet, wherein the first gas stream inlet is in gas communication with the first gas stream outlet of the separation unit;(d) a Joule-Thomson (J-T) valve including a J-T inlet and a J-T outlet, wherein the J-T inlet is in gas communication with the cooled gas stream outlet of the heat-exchanger;(e) a second separation unit including an expanded gas inlet, a second hydrocarbon liquid stream outlet, and a second gas stream outlet, wherein the expanded gas stream inlet is in gas communication with the J-T outlet of the J-T valve, wherein the second gas stream outlet is in gas communication with the second gas stream inlet of the heat-exchanger;(f) a third separation unit including a second hydrocarbon liquid stream inlet, a third gas stream outlet, and a third hydrocarbon liquid stream outlet, wherein the second ...

METHOD AND APPARATUS FOR SEPARATING A FEED GAS CONTAINING AT LEAST 20 MOL % OF CO2 AND AT LEAST 20 MOL % OF METHANE, BY PARTIAL CONDENSATION AND/OR BY DISTILLATION

The invention relates to a method for separating a feed gas containing at least 20 Mol % of CO2 and at least 20 Mol % of methane, by partial condensation and/or by distillation, the gas at a pressure of at least 40 bar abs, including expanding at least one portion of the feed gas in a turbine producing an expanded feed stream at a pressure of less than 90 bar abs, separating at least one portion of the expanded feed stream by partial condensation and/or by distillation thus obtaining a CO-depleted gas and a CO-enriched liquid, wherein the temperature of the expanded feed gas at the outlet of the turbine is below −56.6° C., and wherein the process does not use an external refrigeration source; and wherein the CO-depleted gas is introduced into a supplementary separation step, in order to obtain a stream that is more depleted in COand a CO-rich stream. 111.-. (canceled)12. A process for separating a feed gas containing at least 20 mol % of COand at least 20 mol % of methane , by partial condensation and/or by distillation , the gas being at a pressure of at least 40 bar abs , comprising:a) expanding at least one portion of the feed gas in a turbine producing an expanded feed stream at a pressure of less than 90 bar abs,{'sub': 2', '2, 'b) separating at least one portion of the expanded feed stream by partial condensation and/or by distillation thus obtaining a CO-depleted gas and a CO-enriched liquid,'}{'sub': 2', '2', '2, 'wherein the temperature of the expanded feed gas at the outlet of the turbine is below −56.6° C., and wherein the process does not use an external refrigeration source; and wherein the CO-depleted gas is introduced into a supplementary separation step, in order to obtain a stream that is more depleted in COand a CO-rich stream.'}13. The process of claim 12 , wherein at least one portion of the refrigeration energy is produced by the vaporization of the CO-enriched liquid.14. The process of claim 12 , wherein at least one portion of the ...

USE OF DENSE FLUID EXPANDERS IN CRYOGENIC NATURAL GAS LIQUIDS RECOVERY

A system and a process for processing a natural gas liquid feed is provided. In the system, a dense fluid expander is positioned downstream from a subcooler heat exchanger. The subcooler heat exchanger cools one or more reflux streams against an overhead vapor stream and a distillation column positioned downstream from the dense fluid expander. An increase in recovery of natural gas liquids is provided through the use of this system having at least one dense fluid expander. 1. A system for producing natural gas liquid products comprisinga. a dense fluid expander positioned downstream from a subcooler heat exchanger, wherein said subcooler heat exchanger cools one or more reflux streams against an overhead vapor streamb. and a distillation column positioned downstream from said dense fluid expander.2. The system of wherein a backpressure valve is located between said dense fluid expander and said distillation column.3. The system of further comprising a Joules-Thomson valve positioned on a line parallel to said dense fluid expander.4. The system of wherein said dense fluid expander is positioned to accept the liquid feed from said dense fluid expander into an upper portion of said distillation column.5. The system of wherein said distillation column has an upper exit for a residue gas stream and a lower exit for a liquid stream.6. The system of further comprising a recycle line positioned to return a portion of the residual gas stream to said distillation column.7. The system of further comprising a dense fluid expander on said recycle line.8. A process for separating a hydrocarbon mixture into a liquid stream and a vapor stream claim 6 , said process comprising the steps of:a. cooling a hydrocarbon feed to produce a two-phase mixture;b. separating said two-phase mixture into a vapor stream and a liquid stream;c. sending at least a portion of said vapor stream through a subcooler heat exchanger to produce a liquefied stream;d. sending the liquefied stream through a ...

METHOD AND SYSTEM FOR TREATING A FLOW BACK FLUID EXITING A WELL SITE

The present invention relates to a method and system for treating a flow back fluid exiting a well site following stimulation of a subterranean formation. More specifically, the invention relates to processing the flow back fluid, and separating into a carbon dioxide rich stream and a carbon dioxide depleted stream, and continuing the separation until the carbon dioxide concentration in the flow back stream until the carbon dioxide concentration in the flow back gas diminishes to a point selected in a range of about 50-80 mol % in carbon dioxide concentration, after which the lower concentration carbon dioxide flow back stream continues to be separated into a carbon dioxide rich stream which is routed to waste or flare, and a hydrocarbon rich stream is formed. 110-. (canceled)11. A system for processing the flow back fluid from a well site following stimulation of a subterranean formation , comprises:a pretreatment unit to receive and process the flow back fluid from the well site and remove any one of water, solid particulates, liquid hydrocarbons, hydrogen sulfides or a combination thereof;a membrane unit downstream of the pretreatment unit to receive the pretreated flow back fluid therefrom and separate the pretreated flow back fluid into a carbon dioxide rich permeate stream and a carbon dioxide depleted retentate stream;a permeate cooling unit to receive the carbon dioxide rich permeate stream and reduce the temperature of the stream to a temperature ranging from about −40 to 20° F.; anda phase separator to receive the lower temperature carbon dioxide rich permeate stream from the permeate cooling unit and separate the stream into a first liquid stream of predominantly carbon dioxide and a first gaseous stream enriched in methane.12. The system of claim 11 , further comprising a second phase separator to receive the first liquid stream of predominantly carbon dioxide and further separate into a second liquid carbon dioxide product stream and a second gaseous ...

Liquefaction of associated gas at moderate conditions

A method is proposed for converting a portion of associated gas generated during crude oil production into a liquid form which permits the transport of a large amount of methane at moderate temperatures. A methane-containing liquid is produced at moderate temperature by: recovering the gas from oil production; drying the gas; chilling the dried gas; and separating the chilled gas into methane-rich and methane-lean streams.

Hydrocyclone for cryogenic gas-vapor separation

A hydrocyclone for separating a vapor from a carrier gas is disclosed. The hydrocyclone comprises one or more nozzles. A cryogenic liquid is injected to a tangential feed inlet at a velocity that induces a tangential flow and a cyclone vortex in the hydrocyclone. The carrier gas is injected into the cryogenic liquid, causing the vapor to dissolve, condense, desublimate, or a combination thereof, forming a vapor-depleted carrier gas and a vapor-enriched cryogenic liquid. The vapor-depleted carrier gas is drawn through a vortex finder and the vapor-enriched cryogenic liquid is drawn through an apex nozzle outlet. In this manner, the vapor is removed from the carrier gas.

Separation of gas mixtures by partial condensation

In a process for the separation of a gas mixture at superatmospheric pressure by partial condensation at cryogenic temperatures and wherein the separated condensate and uncondensed vapor are passed back as returning streams in indirect countercurrent heat exchange relationship with the incoming feed mixture, the power required for providing the refrigeration and energy requirements for the separation are reduced by supplying said requirements by means of a heat pump alone or together with at least one separate refrigeration cycle and/or some Joule-Thomson expansion of the condensate, and in the heat pump a compressed multi-component gaseous medium is condensed by heat exchange with said returning streams over a first temperature range and then expanded by Joule-Thomson expansion, and the expanded condensate is evaporated by heat exchange with the feed gas mixture over a lower temperature range than said first temperature range, and recycled for recompression.

Method and apparatus for separating one or more c2+ hydrocarbons from a mixed phase hydrocarbon stream

A method for separating one or more C 2 + hydrocarbons from a mixed phase hydrocarbon stream such as partly vapourised liquefied natural gas, the method at least comprising the steps of: (a) supplying a mixed phase hydrocarbon feed stream ( 10 ) to a first gas/liquid separator ( 12 ); (b) separating the hydrocarbon feed stream ( 10 ) in the first gas/liquid separator ( 12 ) into a first gaseous stream ( 20 ) from a first outlet ( 23 ) and at least one C 2 + liquid stream ( 30 ); (c) passing the first gaseous stream ( 20 ) through a compressor ( 14 ) to provide a compressed stream ( 60 ); and (d) cooling the compressed stream ( 60 ) in one or more heat exchangers ( 16 ) to provide an at least partly condensed hydrocarbon product stream ( 70 ); wherein a second gaseous stream ( 40 ) is added to a stream ( 20, 60, 70 ) downstream of the first outlet ( 23 ).

Process for the production of a fluid rich in methane from liquefied natural gas under a low initial pressure

Liquid removal from natural gas

Methods have been developed for removing valuable liquid condensates from natural gas streams, which in certain embodiments do not use pumps and which are operated by the input pressure of gas to be processed. In other methods according to this invention pumps and equipment with moving parts are used. In one aspect a method described here includes: cooling input gas to a desired level to form a mist in the gas of condensed droplets of desired size, e.g., but not limited to, droplets of a largest dimension of at least 0.1 micrometer, 0.7 micrometer, or less than 1.0 micrometer; based on an analysis of the condensates, selecting a desired microfilter media to filter liquid condensates from the cooled gas; and filtering the cooled gas producing a liquid condensate(s) stream and a gas stream, each of which may be usable as fuel or in other methods or apparatuses. A gas collector has been developed to collect all or substantially all of the condensates from a gas sample, e.g. condensed hydrocarbons in a natural gas stream, for precise analysis and aid in filter media selection. A method and apparatus have been developed for analyzing a particular microporous filter media's filtration of condensates from a particular gas stream which employs collection of a liquids sample from inlet gas, from liquids produced by filtration, and from an outlet gas stream; the collected liquids are then analyzed and a suitable media is selected based on the analysis.

Recovery of heavier hydrocarbons from natural gas

A gas recovery system primarily to recover propane and heavier hydrocarbons from a natural gas stream whereby separation is accomplished at lower pressures and higher temperatures normally required.

Method of and arrangement for processing through low temperature heat exchanges and in particular for treating natural gases and cracked gases

A method of processing through low temperature heat exchanges natural gases and cracked gases consisting in using a cooling cycle including compressing and then cooling a cycle mixture of gases consisting of C1 hydrocarbons, C2 hydrocarbons and C3 hydrocarbons through outer coolers with attendant total liquefaction of the cycle mixture under pressure; subsequently effecting a sub-cooling of the mixture within heat exchanges in counter-current relation to one expanded part thereof and/or cold returns and rejects of products processed in the cycle and finally expanding said sub-cooled mixture in at least one exchanger where various cooling processes of the treated products are carried out at successive temperature levels.

Improvement of c3+ recovery

A method for producing a stream enriched in hydrocarbons containing three or more carbon atoms from a feed gas stream, comprising:a) separating an at least partially condensed feed gas comprising hydrocarbons containing three or more carbon atoms (108) in a phase separator (109), thereby producing a liquid stream rich in hydrocarbons containing three or more carbon atoms (110), and a vapor stream lean in hydrocarbons containing three or more carbon atoms (111),b) heating the liquid stream rich in hydrocarbons containing three or more carbon atoms (110) and introducing the heated stream (123) into separator drum (112), thereby producing an overhead stream enriched in hydrocarbons containing no more than 3 carbon atoms (113), and a liquid product stream enriched in hydrocarbons containing three or more carbon atoms (114),c) warming the vapor stream lean in hydrocarbons containing three or more carbon atoms (111) to ambient temperature, then separating the ambient temperature stream in a membrane unit (115), thereby producing a permeate stream (116) and a retentate stream (117),d) cooling the retentate stream (117) and expanding the cooled retentate stream (202), combining the cooled, expanded retentate stream (204) with the overhead stream overhead stream enriched in hydrocarbons containing no more than 3 carbon atoms (113),e) warming the combined stream (205), then exporting as a fuel gas stream (206).f) combining the permeate stream (116) with the feed gas stream (101).

Hydrogen recovery process

A treatment process for a hydrogen-containing off-gas stream from a refinery, petrochemical plant or the like. The process includes three separation steps: condensation, membrane separation and hydrocarbon fraction separation. The membrane separation step is characterized in that it is carried out using a polymeric separation membrane that is selective in favor of hydrocarbons, including methane, over hydrogen, so that the hydrogen-enriched stream is delivered at high pressure.

Methane/nitrogen separation process

A membrane separation process for treating a gas stream containing methane and nitrogen, for example, natural gas. The separation process works by preferentially permeating methane and rejecting nitrogen. We have found that the process is able to meet natural gas pipeline specifications for nitrogen, with acceptably small methane loss, so long as the membrane can exhibit a methane/nitrogen selectivity of about 4, 5 or more. This selectivity can be achieved with some rubbery and super-glassy membranes at low temperatures. The process can also be used for separating ethylene from nitrogen.

Cryogenic process for increased recovery of hydrogen

A cryogenic process and apparatus to recover hydrogen from a fuel gas stream. The process can be stand alone or can be combined with existing processes, such as recovery of LPG from a fuel gas stream. In the stand-alone process, the fuel gas is cooled in one or more stages and sent to a cold separator that is used to separate the feed into a liquid and vapor stream. The liquid stream, is then warmed, compressed and then cooled and sent for further processing. The vapor stream, which contains hydrogen, is compressed, cooled when needed, and then returned for use in the existing facility or exported. The stand-alone process can be integrated within an LPG recovery process. The result of this cryogenic process is recovery of hydrogen from a fuel gas stream with only a slight decrease in hydrogen purity.

Liquefaction of associated gas at moderate conditions

A method is proposed for converting a portion of associated gas generated during crude oil production into a liquid form which permits the transport of a large amount of methane at moderate temperatures.

Procede de separation cryogenique d'un courant de gaz naturel

Procédé de séparation cryogénique d'un courant d'alimentation de gaz naturel en un gaz contenant les composés les plus volatils du courant d'alimentation et en un produit liquide contenant les composés les plus lourds du courant d'alimentation, comprenant au moins les étapes suivantes : - Etape a) : condensation au moins partielle d'un courant d'alimentation de gaz naturel dans un premier système d'échange de chaleur ; - Etape b) : introduction du courant au moins partiellement condensé issu de l'étape a) dans une colonne d'absorption à un niveau d'introduction situé dans la partie inférieure de ladite colonne d'absorption, ladite colonne d'absorption produisant, en tête, un courant gazeux contenant les composés les plus volatils et en cuve, un produit liquide ; - Etape c) : introduction du produit liquide issu de l'étape b) dans une colonne de fractionnement pour obtenir, en cuve de colonne de fractionnement, un produit liquide contenant les composés les plus lourds du courant d'alimentation et, en tête de colonne de fractionnement, un distillat, au moins partiellement condensé dans un deuxième système d'échange de chaleur ; - Etape d) : introduction, à un niveau situé dans la partie supérieure de la colonne d'absorption, de la phase gazeuse du distillat condensé issu de l'étape c) comme courant d'alimentation de la colonne d'absorption ; caractérisé en ce que le courant gazeux produit en tête de colonne d'absorption issu de l'étape b) est mis en œuvre pour condenser, dans le deuxième système d'échange de chaleur, le distillat issu de la tête de la colonne de fractionnement.

Refinery gas upgrading via partial condensation and PSA

A process and system for recovering valuable by-products (e.g., hydrogen) from refinery gas streams. For hydrogen-only recovery, the invention comprises a partial condensation step to upgrade the refinery fuel gas to a minimum of 60% hydrogen, which is further purified in a pressure swing adsorption process. When configured to recover hydrogen, methane-rich gas and raw LPG (methane depleted gas containing C2 hydrocarbons and heavier), the invention comprises two partial condensation steps where the feed is cooled in the first step to allow separation of ethane and heavier hydrocarbons, and the resulting vapor is cooled to a lower temperature in a second step for hydrogen recovery.

Low temperature process for the recovery of ethane from thermal hydrocracking vent gases

The present invention provides a method for recovering ethane from a gaseous mixture comprising hydrogen, methane, ethane, and aromatics, comprising subjecting the gaseous mixture to a series of condensing steps to separate the components and flashing the so-obtained ethane to produce a substantially pure ethane product stream.

Process for cryogenic purification of hydrogen

A process for separating condensable contaminants such as methane from a crude hydrogen stream utilizing a series of multipass heat exchangers through which the gas flows for stepwise cooling, with interstage separation of condensates which are expanded and passed in a reverse flow path for autogenous refrigeration. Supplemental refrigeration is provided for the last cooling stage to maintain the plant in proper heat balance for variations in feed gas composition and to facilitate startup.

Refinery gas upgrading via partial condensation and PSA

A process and system for recovering valuable by-products (e.g., hydrogen) from refinery gas streams. For hydrogen-only recovery, the invention comprises a partial condensation step to upgrade the refinery fuel gas to a minimum of 60% hydrogen, which is further purified in a pressure swing adsorption process. When configured to recover hydrogen, methane-rich gas and raw LPG (methane depleted gas containing C2 hydrocarbons and heavier), the invention comprises two partial condensation steps where the feed is cooled in the first step to allow separation of ethane and heavier hydrocarbons, and the resulting vapor is cooled to a lower temperature in a second step for hydrogen recovery.

Process for separating and recovering NGLs from hydrocarbon streams

This process comprises using unconventional processing of hydrocarbons, e.g. natural gas, for recovering C2+ and NGL hydrocarbons that meet pipeline specifications, without the core high capital cost requirement of a demethanizer column, which is central to and required by almost 100% of the world's current NGL recovery technologies. It can operate in Ethane Extraction or Ethane Rejection modes. The process uses only heat exchangers, compression and simple separation vessels to achieve specification ready NGL. The process utilizes cooling the natural gas, expansion cooling, separating the gas and liquid streams, recycling the cooled streams to exchange heat and recycling selective composition bearing streams to achieve selective extraction of hydrocarbons, in this instance being NGLs. The compactness and utility of this process makes it feasible in offshore applications as well as to implementation to retrofit/revamp or unload existing NGL facilities. Many disparate processes and derivatives are anticipated for its use.

制冷剂和氮气回收

本发明提供了用于回收液化系统内的混合制冷剂和/或氮气的系统、装置和方法。所述系统、装置和方法有利于回收可从压缩机泄漏的混合制冷剂(MR)和/或氮蒸气，将MR与氮气分离，以及在所述液化系统内再利用MR和/或氮气。回收和再利用MR和/或氮气可使MR和氮气的损失最小化，这可降低液化系统的总操作成本。此外，回收MR(而不是将其燃烧)可通过减少被燃烧的MR的量来减少环境排放。

Improved cryogenic production of ammonia synthesis gas

Gas recovery system, compressor system, and refrigeration cycle system

Gas recovery system, compressor system, and refrigeration cycle system

A gas recovery system separates a mixed gas including a process gas and an inert gas. The gas recovery system includes a cooling section for cooling and liquefying the process gas contained in the mixed gas by cooling the mixed gas at a temperature higher than a condensation temperature of the inert gas and lower than a condensation temperature of the process gas, a separating section for separating the cooled mixed gas into the process gas in a liquid state and the inert gas in a gas state, and a process gas recovery line that is connected to the separating section which circulates and gasifies the liquid-state process gas and then supplies the process gas into the a compressor. The mixed gas is formed by mixing the process gas, which is compressed by the compressor, and the inert gas, which is supplied to a seal portion of the compressor.

Method and system for cooling and separating hydrocarbon flow

FIELD: cooling; chemical or physical processes. SUBSTANCE: present invention relates to a method of cooling and separating hydrocarbon flow. Flow of hydrocarbon material (7) is passed through the first stage of cooling and separation to produce upper stream of steam enriched with methane (110), and flow of lean liquid to methane of liquid (10). Flow of lean liquid to methane (10) is passed to fractionation column (200) to obtain bottom condensate flow (210), upper stream enriched with C 1 -C 2 (220) and average flow enriched with C 3 -C 4 (230). Upper part of fractionation column (201) is cooled with condenser (206). Split flow (112) is obtained from upper stream of steam enriched with methane (110), cooled split flow (112') by cooling by expansion of volume of split flow (112). Cooling capacity is provided in upper part of fractionation column (201) by means of cooled split flow (112'). EFFECT: technical result is increased compactness and reduced weight of structure. 14 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 720 732 C1 (51) МПК F25J 3/02 (2006.01) F25J 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F25J 1/0022 (2020.02); F25J 1/0035 (2020.02); F25J 1/0042 (2020.02); F25J 1/0045 (2020.02); F25J 1/0052 (2020.02); F25J 1/0055 (2020.02); F25J 1/0205 (2020.02); F25J 1/0214 (2020.02); F25J 1/0216 (2020.02); F25J 1/0216 (2020.02); F25J 1/0231 (2020.02); F25J 1/0237 (2020.02); F25J 1/0239 (2020.02); F25J 1/0255 (2020.02); F25J 1/0262 (2020.02); F25J 3/0209 (2020.02); F25J 3/0233 (2020.02); F25J 3/0242 (2020.02); F25J 3/0247 (2020.02); F25J 3/061 (2020.02); F25J 3/0635 (2020.02) 2018104986, 08.07.2016 (24) Дата начала отсчета срока действия патента: 08.07.2016 (73) Патентообладатель(и): ШЕЛЛ ИНТЕРНЭШНЛ РИСЕРЧ МААТСХАППИЙ Б.В. (NL) 13.05.2020 Приоритет(ы): (30) Конвенционный приоритет: (56) Список документов, цитированных в отчете о поиске: US 2009107174 A1, 30.04.2009. US 5453559 A, 26.09 ...

Способ криогенного разделения потока природного газа

Настоящее изобретение относится к газовой промышленности. Предложен способ криогенного разделения подаваемого потока (1) природного газа на газ, содержащий наиболее летучие соединения (14), и на жидкий продукт (18), содержащий наиболее тяжелые соединения. Частично конденсируют подаваемый поток (1) природного газа в первой системе (2) теплообмена. Вводят частично конденсированный поток (3) в нижнюю часть абсорбционной колонны (7). Абсорбционная колонна (7) образует в верхней части поток (11) газа, содержащий наиболее летучие соединения, и в нижней части жидкий продукт (10). Вводят жидкий продукт (10) в колонну (15) фракционирования для получения в нижней части (16) колонны (15) фракционирования жидкого продукта (18) и в верхней части (19) колонны фракционирования дистиллята (21). Вводят в верхнюю часть абсорбционной колонны (7) газовую фазу (23) конденсированного дистиллята (21) в качестве подаваемого потока (24) абсорбционной колонны (7). Поток (11) газа разделяют на несколько потоков (11', 11''), по меньшей мере один (11') из которых используют для конденсирования дистиллята (21) во второй системе (12) теплообмена. Техническим результатом является усовершенствование управления верхним конденсатором колонны фракционирования. 2 з.п. ф-лы, 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 720 366 C1 (51) МПК F25J 3/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C10G 5/06 (2020.02); F25J 3/0209 (2020.02); F25J 3/0233 (2020.02); F25J 3/0242 (2020.02); F25J 3/061 (2020.02); F25J 3/0635 (2020.02); F25J 3/064 (2020.02); F25J 3/0645 (2020.02); F25J 3/065 (2020.02) (21)(22) Заявка: 2019115665, 08.11.2017 08.11.2017 Дата регистрации: 29.04.2020 08.11.2016 FR 1660774 (45) Опубликовано: 29.04.2020 Бюл. № 13 (56) Список документов, цитированных в отчете о поиске: US 2002/157538 A1, 31.10.2002. DE 10221229 A1, 04.12.2003. US 5114450 A, 19.05.1992. RU 2040293 C1, 25.07.1995. RU 2099654 C1, 20.12.1997. (85 ...

Liquefying of high-pressure natural gas or low-pressure associated oil gas

FIELD: oil-and-gas industry. SUBSTANCE: invention relates to liquefying of natural or associated oil gas, i.e. propane-butane fraction. Initial flow is cooled, separated to isolate light portion of low-molecular hydrocarbon stock to be liquefied with extraction of liquid propane-butane fraction in power vortex separator. Said vortex separator is composed of three-section vessel accommodating vortex tube to divide the latter into three sections, top, mid and bottom, by horizontal walls. Note here that top section accommodates cold end with vortex tube coil heat exchanger, mid-section accommodating hot end. Bottom section houses hot flow rate regulator and separator of liquid phase from said flow equipped with the valve. EFFECT: higher yield of pure hydrocarbon stock. 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 528 460 C2 (51) МПК F25J 1/00 (2006.01) F25J 3/00 (2006.01) F25B 9/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ На основании пункта 1 статьи 1366 части четвертой Гражданского кодекса Российской Федерации патентообладатель обязуется заключить договор об отчуждении патента на условиях, соответствующих установившейся практике, с любым гражданином Российской Федерации или российским юридическим лицом, кто первым изъявил такое желание и уведомил об этом патентообладателя и федеральный орган исполнительной власти по интеллектуальной собственности. (21)(22) Заявка: 2012139878/06, 18.09.2012 18.09.2012 Приоритет(ы): (22) Дата подачи заявки: 18.09.2012 (73) Патентообладатель(и): Косенков Валентин Николаевич (RU) (45) Опубликовано: 20.09.2014 Бюл. № 26 (56) Список документов, цитированных в отчете о поиске: RU 2395763 C1, 27.07.2010. RU 2321797 2 5 2 8 4 6 0 Адрес для переписки: 192286, Санкт-Петербург, пр. Славы, 23, корп.1, кв.163, В.Н. Косенкову (54) СПОСОБ СЖИЖЕНИЯ ВЫСОКОНАПОРНОГО ПРИРОДНОГО ИЛИ НИЗКОНАПОРНОГО ПОПУТНОГО НЕФТЯНОГО ГАЗОВ (57) Реферат: Изобретение относится к технологии разделена на три секции ...

Equalization of loads on heat exchangers

Способ удаления кислотных газов из природного газа

1. Способ удаления кислотных газов, в частности диоксида углерода и сероводорода, из богатой углеводородом фракции, в частности природного газа, где- богатую углеводородом фракцию (1) охлаждают и частично конденсируют (Е1-Е4), и- получающуюся при этом обогащенную диоксидом углерода жидкую фракцию (5) путем ректификации (Т1) разделяют на богатую диоксидом углерода жидкую фракцию (7) и обедненную диоксидом углерода газовую фракцию (6),отличающийся тем, что- богатую углеводородом фракцию (1) с помощью замкнутого многоступенчатого холодильного цикла, в котором доля диоксида углерода в хладагенте составляет более чем 99,5%, охлаждают (Е1-Е4) до температуры, близкой к температуре тройной точки для диоксида углерода (-56,6°С),- ректификационная колонна (Т1) работает при давлении от 40 до 65 бар, и- обогрев кипятильника (Е5) ректификационной колонны (Т1) осуществляют с помощью конденсирующегося частичного потока хладагента (28) холодильного цикла, давление в котором находится на пригодном для этой цели уровне.2. Способ по п. 1, отличающийся тем, что богатая углеводородом фракция (1) не охлаждается (Е1-Е4) ниже температуры -55°С, предпочтительно -52°С.3. Способ по п. 1 или 2, отличающийся тем, что ректификационная колонна работает при давлении от 50 до 60 бар.4. Способ по п. 1 или 2, отличающийся тем, что охлаждение (Е1-Е4) богатой углеводородом фракции с помощью холодильного цикла происходит исключительно в двухходовых теплообменниках.5. Способ по п. 1 или 2, отличающийся тем, что частичный поток хладагента (28), применяемый для обогрева кипятильника (Е5) ректификационной колонны (Т1), находится под давлением, превышающим рабочее давление в ректификационной колонне (Т1) на величину от 1 до 15 бар, предпочтительно от 3 до 10 бар.6. Способ по п. 1 или 2, от РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F25J 3/08 (11) (13) 2014 128 347 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014128347, 10.07.2014 (71) Заявитель(и): ...

Method of processing liquid natural gas

FIELD: chemistry. SUBSTANCE: method of extracting hydrocarbons heavier than methane from liquefied natural gas (LNG) involves pumping low pressure LNG using a pump into a zone with pressure higher than 100 pounds per inch, feeding the compressed LNG into a cooling reservoir where heat exchange takes place in order to raise its temperature, feeding the heated LNG under pressure into a separator where, combined with the first and second condensate, a distilled product of separation is formed together with bottom residue, compressing the bottom residue from the separator and then separating this compressed product into a first and a second portion, feeding the first portion of the bottom residue into a deethanising tower in form of a condensate stream, heating the second portion of the compressed bottom residue from the separator by feeding that second portion into a cooling reservoir, feeding the heated second portion of compressed bottom residue from the separator into the deethanising column, removing hydrocarbons heavier than methane as residue from the deethanasing column, feeding the distillate from the deethanising column as a second portion of raw material into the separator, removing the distillate from the separator and compressing this distillate before feeding into the cooling reservoir and heat exchange with the compressed LNG to obtain compressed LNG which is liquefied once more and separation of a portion of the once more liquefied compressed LNG in order to use it as the first condensate. EFFECT: low power consumption and low capital expenditure. 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 407 966 (13) C2 (51) МПК F25J 3/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (30) Конвенционный приоритет: 25.07.2005 US 11/188,961 (73) Патентообладатель(и): ХАУИ-БЕЙКЕР ЭНДЖИНИРС, ЛТД. (US) (43) Дата публикации заявки: 10.09.2009 2 4 0 7 9 6 6 (45) Опубликовано: 27.12.2010 Бюл. № 36 ( ...

用于产生脱氮液化天然气产物的设备

一种用于产生脱氮液化天然气产物的设备，其中，天然气进料流馈送到主热交换器的暖端中，天然气进料流被冷却和至少部分地液化，自主热交换器的中间位置抽出，并且分离，以形成富氮天然气蒸气流和脱氮天然气液体流，液体和蒸气流再引入到主热交换器的中间位置中，并且进一步并行地冷却，以分别形成第一液化天然气流和第一至少部分地液化的富氮天然气流。

一种用于燃气调峰和轻烃回收的天然气液化方法

本发明公开一种用于燃气调峰和轻烃回收的天然气液化方法，包括下述步骤：1)预冷；2)预分离；3)膨胀制冷；将步骤2)中获得的高压天然气在透平膨胀机中膨胀到中压范围，流体温度下降，形成气液混合物；步骤2)中获得的高压天然气液体通过节流阀等焓膨胀至中压范围，流体温度降低，形成气液混合物；4)气液分离；将步骤3)获得的两股气液混合物在气液分离器中分离，从而获得液化天然气和低温的中压天然气；液化天然气输入储罐中储存，低温的中压天然气作为步骤1)中预冷的冷源，换热后进入中压天然气管网。本发明通过回收天然气自身调压过程的压力能来液化管道中的天然气，能量利用率高，具有城市燃气调峰和回收天然气中轻烃资源的作用。

REMOVAL OF HEAVY HYDROCARBONS FROM NATURAL GAS FLOW

1. Способ удаления тяжелых углеводородов из исходного потока природного газа, включающий стадии:охлаждения исходного потока природного газа;введения охлажденного исходного потока природного газа в систему разделения газ-жидкость и разделения охлажденного исходного потока природного газа на паровой поток природного газа, обедненного тяжелыми углеводородами, и на поток жидкости, обогащенной тяжелыми углеводородами;нагревания парового потока природного газа, обедненного тяжелыми углеводородами;пропускания по меньшей мере части парового потока природного газа, обедненного тяжелыми углеводородами, через один или несколько слоев адсорбционной системы для адсорбирования из него тяжелых углеводородов с получением таким образом потока природного газа, обедненного тяжелыми углеводородами; иохлаждения по меньшей мере части потока природного газа, обедненного тяжелыми углеводородами, с получением охлажденного потока природного газа, обедненного тяжелыми углеводородами;где паровой поток природного газа, обедненный тяжелыми углеводородами, нагревают и по меньшей мере часть потока природного газа, обедненного тяжелыми углеводородами, охлаждают в экономайзере-теплообменнике путем косвенного теплообмена между исходным паровым потоком природного газа, обедненного тяжелыми углеводородами, и по меньшей мере части потока природного газа, обедненного тяжелыми углеводородами.2. Способ по п. 1, в котором система разделения газ-жидкость содержит отпарную колонну или фазовый сепаратор.3. Способ по п. 1, дополнительно представляющий собой способ получения потока сжиженного природного газа и дополнительно содержащий РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C10L 3/10 F25J 1/00 F25J 1/02 F25J 3/02 F25J 3/06 (13) 2015 107 256 A (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015107256, 31.07.2013 (71) Заявитель(и): ЭР ПРОДАКТС ЭНД КЕМИКАЛЗ, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: ( ...

Gas mixture separation method

FIELD: machine building. SUBSTANCE: in separation method of gas mixtures containing solid phase, inlet gas is expanded in rotating flow in cyclone separator channel so that clean flow and flow enriched with specific fractions are obtained at the outlet of cyclone separator; at that, during expansion process some portion of gas, which flows near walls, is heated; heating is performed so that temperature of internal surfaces of cyclone separator channel is higher than solid phase formation temperature. In addition, expansion degree of flow in cyclone separator is maintained so that P inlet /P clean >1.01 (whereP inlet - full pressure of inlet gas, P clean - full pressure of clean flow at the outlet of cyclone separator channel). EFFECT: enlarging the operability range of gas mixture separation plants using gas expansion in cyclone separators, and providing their operability under conditions favourable for hardening of individual components included in composition of gas mixtures. 3 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 458 297 (13) C1 (51) МПК F25J 3/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011108934/06, 10.03.2011 (24) Дата начала отсчета срока действия патента: 10.03.2011 (72) Автор(ы): Имаев Салават Зайнетдинович (RU), Дмитриев Леонард Макарович (RU) (45) Опубликовано: 10.08.2012 Бюл. № 22 2 4 5 8 2 9 7 (56) Список документов, цитированных в отчете о поиске: GB 898732 A1, 14.06.1962. RU 2336932 C1, 27.10.2008. RU 2353764 C2, 27.04.2009. RU 2302590 C1, 10.07.2007. US 5586998 A, 24.12.1996. 2 4 5 8 2 9 7 R U (54) СПОСОБ РАЗДЕЛЕНИЯ ГАЗОВЫХ СМЕСЕЙ (57) Реферат: Изобретение может быть использовано в установках, предназначенных для разделения газовых смесей, в частности в газоперерабатывающих комплексах, в которых осуществляется извлечение из газа компонент, кристаллизующихся при низких температурах газа. В предлагаемом способе разделения газовых смесей, содержащих твердую фазу, ...

Integrated nitrogen removal in the production of liquefied natural gas using intermediate feed gas separation

본 발명은 질소 감손 LNG 생성물을 제조하기 위해 천연 가스 원료 스트림을 액화시키고 천연 가스 원료 스트림으로부터 질소를 제거하는 방법 및 장치에 관한 것으로서, 본 발명의 방법 및 장치에서 질소 풍부 천연 가스 증기 스트림과 질소 감손 천연 가스 액체 스트림을 형성하기 위해 천연 가스 원료 스트림이 메인 열교환기의 온단부으로 공급되고, 냉각 및 적어도 부분적으로 기화되며, 메인 열교환기의 중간 위치로부터 배출되고 그리고 분리되며, 제 1 LNG 스트림 및 제 1의 적어도 부분적으로 액화된 질소 풍부 천연 가스 스트림을 각각 형성하기 위해 액체 스트림과 증기 스트림이 메인 열교환기의 중간 위치로 재유입되어 병렬로 추가로 냉각된다. The present invention relates to a process and apparatus for liquefying a natural gas feed stream and removing nitrogen from a natural gas feed stream to produce a nitrogen depleted LNG product wherein the nitrogen rich natural gas vapor stream and nitrogen depletion The natural gas feed stream is fed to the warm end of the main heat exchanger to cool and at least partially vaporize to form a natural gas liquid stream and is discharged and separated from the intermediate location of the main heat exchanger and the first LNG stream and 1 < / RTI > of the at least partially liquefied nitrogen-rich natural gas stream, the liquid stream and the vapor stream are re-introduced to the intermediate location of the main heat exchanger and further cooled in parallel.

Method for refrigerating liquefied gas and installation therefor

본 발명은 (a) 수집된 제일기본분획(4)에서와, (b) 가열되고, 압축기(K1)에서 압축되고 수집된 제일압축분획(5)으로 냉각되는 제일상부분획(3)에서 LNG(1)을 냉각, 팽창과 분리시키고; 제이압축분획(6)을 연료가스(5)로부터 인출하고, 냉각한 다음 냉각되고 팽창된 LNG(1)과 혼합하여서 하는 제일단계로 이루어지는 압력하의 액화천연가스(1)를 냉각시키는 방법에 관한 것이다. 본 발명은 제이압축분획(6)을 압축하고 냉각하고, 유출물(8)을 인출하고 냉각하고, 팽창시키고 압축기(K1)에 주입하여서 하는 제이단계로 이루어짐을 특징으로 한다. 또한 본 발명에는 다른 구성도 기술되어 있다. The present invention relates to LNG (a) in the first primary fraction (4) collected and (b) in the first upper fraction (3) which is heated and cooled by the first compression fraction (5) that is heated and compressed and collected by the compressor (K1). Cooling, expanding and separating 1); And a method for cooling the liquefied natural gas (1) under pressure which comprises the first compression fraction (6) withdrawn from the fuel gas (5), cooled, and then mixed with the cooled and expanded LNG (1). . The present invention is characterized in that it consists of a second step by compressing and cooling the second compression fraction (6), withdrawing and cooling the effluent (8), expanding and injecting it into the compressor (K1). The present invention also describes other configurations.

METHOD AND SYSTEM FOR TREATMENT OF A RETURN FLOW MEDIUM EXITING FROM A WELL SURFACE

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 134 819 A (51) МПК E21B 43/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016134819, 07.01.2015 (71) Заявитель(и): ПРАКСАЙР ТЕКНОЛОДЖИ, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: 28.01.2014 US 14/166,304 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.08.2016 R U (43) Дата публикации заявки: 07.03.2018 Бюл. № 07 (72) Автор(ы): БУРГЕРЗ Кеннет Л. (US), ДРНЕВИЧ Рэймонд Ф. (US), ШАХ Миниш М. (US), ТОМПСОН Дэвид Р. (US) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2015/116357 (06.08.2015) A Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Способ обработки текучей среды обратного притока, выходящей с площадки скважины после стимуляции подземного пласта, включающий: обработку текучей среды обратного притока, выходящей с площадки скважины, и разделение текучей среды обратного притока на богатый углекислым газом поток и обедненный углекислым газом поток, при этом богатый углекислым газом поток далее обрабатывается для образования жидкого продукта углекислого газа, в то время как обедненный углекислым газом поток используется в обработке ниже по потоку, чтобы способствовать образованию указанного жидкого продукта углекислого газа; продолжение разделения текучей среды обратного притока на богатый углекислым газом поток и обедненный углекислым газом поток, до тех пор, пока концентрация углекислого газа в газе обратного притока не уменьшится до значения, выбранного в диапазоне примерно 50-80 мол.% концентрации углекислого газа, после чего поток обратного притока с пониженной концентрацией углекислого газа продолжает разделяться на богатый углекислым газом поток, который сбрасывается или направляется на факел, и на богатые углеводородами потоки продукта. 2. Способ по п.1, дополнительно включающий в себя предварительную обработку текучей среды ...

Method of liquefying stream of contaminated co2 containing hydrocarbons

FIELD: chemistry. SUBSTANCE: disclosed is a method of liquefying a stream of contaminated gas containing hydrocarbons. Stream (20) contaminated with CO 2 gas containing hydrocarbons. Said stream of contaminated gas containing hydrocarbons is cooled to produce a partially liquefied stream (70). Said partially liquefied stream is separated to produce liquid stream (90). Fluid flow (90) is cooled in heat exchanger (200) with direct contact of media, thus obtaining multiphase flow (201) containing at least liquid phase and solid phase of CO 2 . Separating said multiphase flow in separator (202) of solid and liquid phases to obtain stream (141) of liquid with low content of CO 2 . Flow (141) of liquid with low content of CO 2 is passed through a cascade of additional cooling, reduction of pressure and separation, which creates additional stream (206) of suspension enriched with CO 2 . At least a portion of said additional stream (206) of CO 2 -rich suspension is passed through heat exchanger (200) with direct contact of media, thereby cooling liquid stream (90) and mixing therewith. EFFECT: technical result is simplification of liquefaction process. 15 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 718 943 C2 (51) МПК F25J 1/00 (2006.01) F25J 3/08 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК F25J 1/0022 (2020.01); F25J 1/0035 (2020.01); F25J 1/0037 (2020.01); F25J 1/004 (2020.01); F25J 1/0202 (2020.01); F25J 1/0209 (2020.01); F25J 1/021 (2020.01); F25J 3/061 (2020.01); F25J 3/0635 (2020.01); F25J 3/067 (2020.01) (21)(22) Заявка: 2018123933, 01.12.2016 01.12.2016 Дата регистрации: (73) Патентообладатель(и): ШЕЛЛ ИНТЕРНЭШНЛ РИСЕРЧ МААТСХАППИЙ Б.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: 03.12.2015 EP 15197898.8 (43) Дата публикации заявки: 14.01.2020 Бюл. № 2 (45) Опубликовано: 15.04.2020 Бюл. № 11 (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.07.2018 ( ...

METHOD FOR REMOVING GAS-BASED IMPURITIES FROM A GAS FLOW CONTAINING GAS-BASED IMPURITIES AND A DEVICE FOR ITS IMPLEMENTATION

1. Способ удаления газообразных примесей из сырьевого газового потока, содержащего метан и газообразные примеси, включающий:1) подачу потока сырьевого газа;2) охлаждение потока сырьевого газа до температуры, при которой образуется суспензия, содержащаяся твердую фазу примеси, жидкую фазу примеси и газообразную фазу, богатую метаном;3) ввод суспензии, полученной на стадии 2), в верхнюю часть или промежуточную часть криогенного разделительного устройства;4) отвод потока, содержащего газообразную фазу, богатую метаном, из верхней части разделительного устройства;5) ввод потока, содержащего жидкую фазу примеси, в промежуточную и/или нижнюю часть разделительного устройства для разбавления суспензии, которая была введена в разделительное устройство на стадии 3);6) пропускание разбавленной суспензии, полученной на стадии 5), через теплообменник, который размещен внутри разделительного устройства, за счет чего, по меньшей мере, часть твердой фазы примеси, содержащейся в разбавленной суспензии, расплавляется и превращается в жидкую фазу примеси;7) отвод из разделительного устройства с помощью нагнетателя, предпочтительно эжектора, потока, содержащего жидкую фазу примеси, причем нагнетатель расположен ниже теплообменника и размещен снаружи или внутри разделительного устройства или частично внутри или снаружи разделительного устройства;8) отвод потока, содержащего жидкую фазу примеси, из разделительного устройства в точке, находящейся ниже уровня суспензии в разделительном устройстве;9) разделение потока жидкой фазы примеси, полученной на стадии 8), на поток жидкого продукта и рециркуляционный поток, который в том слу РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F25J 3/06 (11) (13) 2011 133 062 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2011133062/06, 06.01.2010 (71) Заявитель(и): ШЕЛЛ ИНТЕРНЭШНЛ РИСЕРЧ МААТСХАППИЙ Б.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: 08.01.2009 EP 09150250.0 (85) Дата начала ...

Method for removing co2 from a contaminated hydrocarbon feed stream

FIELD: technological processes; chemical or physical processes. SUBSTANCE: method includes obtaining a multiphase contaminated feed stream (100) containing hydrocarbons, which contains at least a vapor phase, a liquid phase and a solid phase, creating suspension flow of raw material (120) from multiphase flow of raw material. Suspension feed stream is fed into crystallization chamber containing seed particles CO 2 . Liquid hydrocarbon feed stream (170) is obtained from crystallization chamber (91) to obtain concentrated suspension (140). Concentrated suspension (140) is removed from crystallization chamber (91) by means of extruder (142), thus obtaining solid CO 2 . Backward stream (141) containing CO 2 seed particles having an average size greater than 100 micron is obtained from solid CO 2 . Return flow (141) is supplied to crystallization chamber (91). EFFECT: present invention provides a method of separating CO 2 from a contaminated feed stream containing hydrocarbons. 20 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 731 426 C2 (51) МПК F25J 3/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B01D 43/00 (2020.02); B01D 53/002 (2020.02); F25J 1/0022 (2020.02); F25J 1/0035 (2020.02); F25J 1/0037 (2020.02); F25J 1/004 (2020.02); F25J 1/0202 (2020.02); F25J 3/061 (2020.02); F25J 3/0635 (2020.02); F25J 3/067 (2020.02) (21)(22) Заявка: 2018123854, 01.12.2016 01.12.2016 Дата регистрации: (73) Патентообладатель(и): ШЕЛЛ ИНТЕРНЭШНЛ РИСЕРЧ МААТСХАППИЙ Б.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: 03.12.2015 EP 15197896.2 (43) Дата публикации заявки: 14.01.2020 Бюл. № 2 (45) Опубликовано: 02.09.2020 Бюл. № 25 (86) Заявка PCT: C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.07.2018 (56) Список документов, цитированных в отчете о поиске: WO 03/062725 A1, 31.07.2003. EP 2789957 A1, 15.10.2014. RU 2520269 C2, 20.06.2014. EA 20177 B1, 30.09.2014. EA 12227 B1, 28.08.2009. EP 2016/ ...

METHOD FOR LIQUIDING A GAS FLUID, CO2-POLLUTED, CONTAINING A HYDROCARBON

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2018 123 933 A (51) МПК F25J 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2018123933, 01.12.2016 (71) Заявитель(и): ШЕЛЛ ИНТЕРНЭШНЛ РИСЕРЧ МААТСХАППИЙ Б.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: 03.12.2015 EP 15197898.8 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 03.07.2018 R U (43) Дата публикации заявки: 14.01.2020 Бюл. № 2 (72) Автор(ы): ГРУНЕНДЕЙК Тейс (NL), ПОРТЕ Раймо Эдвин Грегор (NL), РАГХАВАН Нирупа (NL), ВАН АКЕН Михил Гейсберт (NL) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2017/093377 (08.06.2017) R U (54) СПОСОБ СЖИЖЕНИЯ ПОТОКА ГАЗА, ЗАГРЯЗНЕННОГО CO2, СОДЕРЖАЩЕГО УГЛЕВОДОРОДЫ (57) Формула изобретения 1. Способ сжижения потока загрязненного газа, содержащего углеводороды, включающий по меньшей мере следующие этапы: (a) получают поток (20) загрязненного газа, содержащего углеводороды, загрязнение представляет собой CO2; (b) охлаждают указанный поток (20) загрязненного газа, содержащего углеводороды, получая частично сжиженный поток (70); (c) разделяют указанный частично сжиженный поток (70) в сепараторе (5), таким образом получая поток (80) газов и поток (90) жидкости; (d) охлаждают поток (90) жидкости, получаемый в этапе (c), пропуская указанный поток (90) жидкости через теплообменник (200) с непосредственным контактом сред, таким образом получая многофазный поток (201), содержащий по меньшей мере жидкую фазу и твердую фазу, содержащую частицы CO2; (e) разделяют указанный многофазный поток (201) в сепараторе (202) твердой и жидкой фаз, таким образом получая поток (141) жидкости с низким содержанием CO2 и поток (140) суспензии, обогащенной CO2; (f) пропускают поток (141) жидкости с низким содержанием CO2 через каскад дополнительного охлаждения, понижения давления и разделения, создающий поток Стр.: 1 A 2 0 1 8 1 2 3 9 3 3 A Адрес для переписки: 109012, Москва, ул. Ильинка, 5/2, ООО "Союзпатент" 2 0 1 8 1 2 3 9 3 3 ...

Method and system for reducing heating value of natural gas

A method and a system for reducing caloric value of natural gas are provided to reduce amount of nitrogen consumed as well as running costs even on the sea where the supply and demand of the nitrogen are not smooth. A system for reducing caloric value of natural gas comprises: a heat exchanger(11,13) for cooling natural gas and liquidizing some components with high caloric value; a gas-liquid separating unit for separating into liquidized components and non-liquidized components; and a nitrogen adding unit for adding nitrogen to the non-liquidized components and mixing them. The system for reducing caloric value of natural gas is installed on LNG RV or LNG FSRU. The heat exchanger uses cold heat generated when the LNG evaporates in order to liquidize the components with high caloric value.

Multistage cyclonic fluid separator

本发明涉及旋流分离器，包括喉部(4)，设置在合流入口段与分流出口段之间。旋流分离器设置为促进旋流朝着下游方向的分流出口段地通过合流入口段和喉部。分流出口段包括：用于可冷凝物去除的流体组分的内部主出口导管(7)和用于可冷凝物富集的流体组分的外部副出口导管(6)。旋流分离器包括另外的副出口导管(16)。外部副出口导管(6)位于沿旋流分离器的中心轴线(I)的第一位置上，并且另外的副出口导管(16)位于沿旋流分离器的中心轴线(I)的第二位置上。

METHOD FOR CENTRIFUGAL SEPARATION, VORTEX LIQUIDATION AND ISOTHERMAL STORAGE OF LIQUID FRACTIONS OF NATURAL AND ASSOCIATED OIL GASES

Способ центробежной сепарации, вихревого сжижения и изотермического хранения сжиженных фракций высоконапорного природного и низконапорного попутного нефтяного газов, включающий поступающий из газопровода природный или попутный нефтяной газ, представляющий собой смесь, состоящую из многокомпонентных углеводородных газов и примесей, включающий очистку сжижаемых газов от примесей охлаждением, конденсацией и сепарацией образовавшейся двухфазной смеси на составляющие газовую и сконденсированную жидкую фазу, включающую водно-углеводородный конденсат и примеси, при этом газовую фазу подвергают вихревому энергетическому разделению в трехпоточной вихревой трубе на сухой газ и сжиженные газы, а водно-углеводородный конденсат направляют на сепарацию с выделением водного, углеводородного и примесей, отличающийся тем, что исходный поток высоконапорного природного газа или низконапорного попутного нефтяного газа, после охлаждения, конденсации и сепарации в первом многоступенчатом центробежном сепараторе, сконденсированную жидкую фазу выводят на переработку, а газовую фазу, в случае использования низконапорного попутного нефтяного газа, после сепарации подвергают компремированию отсепарированной газовой фазы, представляющей низкомолекулярную фракцию углеводородов, подвергают вихревому энергетическому разделению, сжижению и газодинамической сепарации в вихревой трубе, размещенной вертикально в трехсекционной (верхней, средней и нижней секции) емкости - вихревом энергоразделителе, разделенной горизонтальными перегородками, в верхней секции исходный поток газа охлаждается в теплообменнике - змее� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2012 139 878 A (51) МПК F25J 1/00 (2006.01) F25J 3/00 (2006.01) F25B 9/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012139878/06, 18.09.2012 (71) Заявитель(и): Косенков Валентин Николаевич (RU) Приоритет(ы): (22) Дата подачи заявки: 18.09.2012 (43) Дата публикации заявки: 27.03.2014 Бюл. ...

Purification of natural gas by cryogenic separation

활성 열교환기 및 재생 열교환기를 포함하는, CO 2 와 제 2 가스를 포함하는 가스 혼합물로부터의 CO 2 분리장치. 활성 열교환기는 가스의 혼합물과 접촉하고 있는 열교환 표면을 포함한다. 가스의 혼합물은 CO 2 가 예정된 압력에서 응결되는 온도보다 낮은 온도를 가지는 냉매에 의해 표면이 냉각될 때 열교환 표면에서 CO 2 가 응결되도록 선택된 예정된 압력에서 활성 열교환기에 존재한다. 재생 열교환기는 냉매 및 또한 응결된 CO 2 의 층과 접촉하고 있는 열교환 표면을 포함한다. 냉매는 CO 2 의 응결된 층에서 CO 2 가 승화되는 온도보다 높은 온도에서 재생 열교환기에 진입한다. 고체 CO 2 의 승화는 냉매의 온도를 예정된 압력에서 CO 2 의 응결점보다 낮은 온도까지 하강시키는, 팽창 밸브를 통해 팽창하기에 앞서 냉매를 냉각시킨다. 냉매는 활성 열교환기를 이탈한 후에 압축기에 의해 재압축된다. 본 발명의 바람직한 양태에서, 재생 열교환기에 의해 배출된 가스 CO 2 는 진입하는 가스 혼합물을 예비냉각하는 데 사용된다. 제 2 예비냉각 열교환기는 활성 열교환기를 이탈하는 냉매와의 열적 접촉을 제공함으로써 압축된 냉매를 예비냉각시킨다.

Associated petroleum gas processing method

FIELD: oil and gas industry. SUBSTANCE: invention is related to method for production of combustion gas for gas power engines formed during extraction of associated gas, which contains methane, ethane, propane, hydrocarbons with more than three carbons atoms and propene, as appropriate, at that gaseous and liquid fractions are received by partial condensation of associated gas, moreover, condensation process is performed with such ratio of pressure and temperature that liquid phase in essence does not contain methane, ethane, propane and propene, as appropriate, and gaseous phase in essence is free from n-butane and isobutane. EFFECT: expanding the method armoury. 8 cl, 2 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 530 898 C2 (51) МПК C10L 3/00 (2006.01) C10L 3/10 (2006.01) B01D 53/00 (2006.01) F25J 3/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012117788/04, 01.10.2010 (24) Дата начала отсчета срока действия патента: 01.10.2010 (72) Автор(ы): ПОКШТАЛЛЕР Франц (AT), ВАЛЛЬ Гюнтер (AT) (73) Патентообладатель(и): ГЕ ЙЕНБАХЕР ГМБХ УНД КО ОХГ (AT) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 10.11.2013 Бюл. № 31 R U 02.10.2009 AT A1557/2009 (45) Опубликовано: 20.10.2014 Бюл. № 29 2000127898 А, 20.10.2002. RU 2006139932 А, 20.06.2008. RU 2194930 С2, 20.12.2002. DE 1944802 A(Esso Reasearch and Engineering Co.) 09.04.1970 (&GB 1275260) (86) Заявка PCT: AT 2010/000362 (01.10.2010) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 02.05.2012 (87) Публикация заявки PCT: 2 5 3 0 8 9 8 WO 2011/038437 (07.04.2011) R U 2 5 3 0 8 9 8 (56) Список документов, цитированных в отчете о поиске: RU 2007125703 А, 20.01.2009. RU Адрес для переписки: 129090, Москва, ул. Большая Спасская, 25, стр. 3, ООО "Юридическая фирма "Городисский и Партнеры" (54) СПОСОБ ПЕРЕРАБОТКИ ПОПУТНОГО НЕФТЯНОГО ГАЗА (57) Реферат: Изобретение относится к способу получения газа, причем ...

Multi-stage cyclone separator for fluid medium

FIELD: machine building. SUBSTANCE: invention relates to a cyclone separator for fluid medium, comprising a neck part (4), which is placed between the section of inlet of the convergent fluid medium and the section of outlet of the divergent fluid medium. The cyclone separator for fluid medium is made with the capability to push the cyclone flow via the section of inlet of the convergent fluid medium and the neck part to the section of outlet of the divergent fluid medium in direction downstream the flow. The section of outlet of the divergent fluid medium comprises an inner primary outlet pipe (7) for fluid components depleted by condensing vapours and an outer secondary outlet pipe (6) for fluid components enriched with condensing vapours. The cyclone separator for fluid medium comprises an additional outer secondary outlet pipe (16). The outer secondary outlet pipe (6) is placed in the first position along the central axis (I) of the cyclone separator for fluid medium, and the additional outer secondary outlet pipe (16) is placed in the second position along the central axis (I) of the cyclone separator for fluid medium. EFFECT: higher efficiency of a separator and purity of produced fractions. 27 cl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 509 272 (13) C2 (51) МПК F25J 3/02 (2006.01) F25J 3/06 (2006.01) B01D 45/16 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ Приоритет(ы): (22) Дата подачи заявки: 05.02.2009 (73) Патентообладатель(и): ТВИСТЕР Б. В. (NL) (43) Дата публикации заявки: 10.03.2013 Бюл. № 7 R U (24) Дата начала отсчета срока действия патента: 05.02.2009 (72) Автор(ы): БЕТТИНГ Марко (NL), ТЬЕНК ВИЛЛИНК Корнелис Антони (NL), ВАН БАКЕЛЬ Роберт Петрус (NL) (21)(22) Заявка: 2011136635/06, 05.02.2009 (45) Опубликовано: 10.03.2014 Бюл. № 7 2 5 0 9 2 7 2 (56) Список документов, цитированных в отчете о поиске: WO 2008/000753 А1, 03.01.2008. US 6372019 В1, 16.04.2002. RU 2272972 С2, 27.03.2006. ЕА 5482 В1, 24.02. ...

INTEGRATED NITROGEN REMOVAL IN THE PRODUCTION OF LIQUID NATURAL GAS USING AN INTERMEDIATE SEPARATION OF THE SOURCE GAS

1. Способ получения обедненного азотом товарного СПГ, включающего:(a) введение потока исходного природного газа в горячий конец основного теплообменника, охлаждение и по меньшей мере частичное сжижение потока исходного природного газа и отвод охлажденного и по меньшей мере частично сжиженного потока из промежуточного положения основного теплообменника;(b) расширение, частичное испарение и разделение охлажденного и по меньшей мере частично сжиженного потока с образованием потока пара обогащенного азотом природного газа и жидкого потока обедненного азотом природного газа;(с) повторное введение по отдельности указанного потока пара и жидкого потока в промежуточное положение основного теплообменника, дополнительное параллельное охлаждение парового и жидкого потоков, жидкий поток дополнительно охлаждается с образованием первого потока СПГ и поток пара дополнительно охлаждается и по меньшей мере частично сжижается с образованием первого потока по меньшей мере частично сжиженного обогащенного азотом природного газа и вывод первого потока СПГ и первого потока по меньшей мере частично сжиженного обогащенного азотом природного газа из холодного конца основного теплообменника;(d) расширение, частичное испарение и разделение первого потока меньшей мере частично сжиженного обогащенного азотом природного газа с образованием обогащенного азотом парового продукта и второго потока СПГ; и(е) расширение, частичное испарение и разделение второго потока СПГ с образованием обедненного азота товарного СПГ и паров обогащенного азотом природного газа.2. Способ по п. 1, где стадия (е) дополнительно включает формирование РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F25J 3/02 (11) (13) 2015 114 796 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015114796, 20.04.2015 (71) Заявитель(и): ЭР ПРОДАКТС ЭНД КЕМИКАЛЗ, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: 24.04.2014 US 14/260,678 Адрес для переписки: 129090, Москва, ул. Б. ...

Removal of gaseous contaminants from gas flow containing gaseous contaminants and device to this end

FIELD: process engineering. SUBSTANCE: invention relates to removal of gaseous contaminants from gas flow containing gaseous contaminants and device to this end. Stock gas flow is cooled to form suspension containing the solid contaminant, liquid-phase contaminant and gas phase enriched with methane. Suspension is fed to cryogenic separator (4) for gas phase (5) to be withdrawn therefrom. Said suspension is diluted by liquid-phase contaminator (6) and sucked into ejector (9) and therefrom in heat exchanger (10) arranged outside said separator and wherein sold contaminator is fused to form liquid-phase contaminator. Portion of obtained liquid-phase contaminator is directed to circulation (6) for dilution of suspension inside said separator while another portion (13) is fed into separator bottom. Liquid phase (14) is discharged from separator bottom while portion of discharged liquid-phase contaminator is removed as the flow of product (16) and another portion is recycled to ejector (17) to be used as the motive fluid. EFFECT: higher reliability of contaminants removal from separators. 14 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F25J 3/06 (11) (13) 2 520 269 C2 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011111742/06, 27.08.2009 (24) Дата начала отсчета срока действия патента: 27.08.2009 (72) Автор(ы): ГЕЕРС Хенрикус Абрахам (NL), ВАН САНТЕН Хелмар (NL) 29.08.2008 EP 08163317.4 (43) Дата публикации заявки: 10.10.2012 Бюл. № 28 R U (73) Патентообладатель(и): ШЕЛЛ ИНТЕРНЭШНЛ РИСЕРЧ МААТСХАППИЙ Б.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: (45) Опубликовано: 20.06.2014 Бюл. № 17 062725 A1, 31.07.2003. US 2996891 A, 22.08.1961. US 2900797 A, 25.08.1959. SU 303485 A1, 13.05.1971 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 29.03.2011 2 5 2 0 2 6 9 (56) Список документов, цитированных в отчете о поиске: US 3132016 A, 05.05.1964. WO 03/ 2 5 2 0 2 6 9 R U EP 2009/061042 ( ...

Acid gas pretreating method

The method allows pretreatment of an acid gas that can comprise more than 10% H 2 S, for example a natural gas or a gas associated with the production of a crude petroleum effluent. The gas is dehydrated in unit DH, then cooled by heat exchangers E 9 to E 12 and by expansion carried out through valve V 7 . Cooling allows part of the H 2 S contained in the gas to be condensed. The condensates are separated from the gas in drum B 1. The liquid recovered at the bottom of drum B 1 is pumped and injected into well P to be sequestered in an underground reservoir or a geologic structure. The gas discharged at the top of drum B 1 is depleted in H 2 S. This gas is sent through line 43 to a treating site in order to be subjected to additional treatments prior to being used.

Liquefaction of associated gas at moderate conditions

A method is proposed for converting a portion of associated gas generated during crude oil production into a liquid form which permits the transport of a large amount of methane at moderate temperatures. A methane-containing liquid is produced at moderate temperature by: recovering the gas from oil production; drying the gas; chilling the dried gas; and separating the chilled gas into methane-rich and methane-lean streams.

Liquefaction of associated gas at moderate conditions

A method is proposed for converting a portion of associated gas generated during crude oil production into a liquid form which permits the transport of a large amount of methane at moderate temperatures. A methane-containing liquid is produced at moderate temperature by: recovering the gas from oil production; drying the gas; chilling the dried gas; and separating the chilled gas into methane-rich and methane-lean streams.

Liquefaction of associated gas at moderate conditions

Liquefaction of associated gas at moderate conditions

提出了将一部分在原油生产过程中产生的伴生气转化为液态的方法，所述方法允许在中等温度下运输大量的甲烷。含甲烷液体在中等温度下通过：回收来自油生产中的气体；干燥所述气体；冷却干燥后的气体；和分离冷却的气体成富甲烷物料和贫甲烷物流来生产。

Liquefaction of associated gas under moderate conditions

Предложен способ превращения части попутного газа, выработанного в течение добычи сырой нефти, в жидкость, что дает возможность транспортировать большие количества метана при умеренных температурах. A method is proposed for converting part of the associated gas generated during the extraction of crude oil into liquid, which makes it possible to transport large quantities of methane at moderate temperatures.

Liquefaction of associated gas at moderate conditions

A method is proposed for converting a portion of associated gas generated during crude oil production into a liquid form which permits the transport of a large amount of methane at moderate temperatures. A methane-containing liquid is produced at moderate temperature by: recovering the gas from oil production; drying the gas; chilling the dried gas; and separating the chilled gas into methane-rich and methane-lean streams.

Procedure for condensation of associated gas under moderate conditions

Method for processing gas associated with oil

The invention relates to a method for producing combustible gas for gas engines from associated gas obtained during oil production, the associated gas containing methane, ethane, propane, hydrocarbons having more than three carbon atoms, and optionally propene, wherein a gaseous fraction and a liquid fraction are obtained by partially condensing the associated gas, wherein the condensation process is performed under such pressure and temperature conditions that the liquid phase is substantially free from methane, ethane, propane, and optionally propene, and that substantially the entire methane, ethane, propane, and optionally propene are contained in the gaseous phase.

Method for liquefying and separation of propane, butane and higher hydrocarbons contained in natural gas or natural oil gas

Liquid natural gas processing

A process for the recovery of natural gas liquids (NGL) (ethane, ethylene, propane, propylene and heavier hydrocarbons) from liquefied natural gas (LNG) is disclosed. The LNG feed stream is split with at least one portion used as an external reflux, without prior treatment, to improve the separation and recovery of the natural gas liquids (NGL).

Cryogenic recovery of LPG from natural gas

In accordance with the present invention a natural gas stream predominating in methane and containing significant amounts of C 2 , C 3 , C 4 and C 5 and higher molecular weight hydrocarbons is cooled in a plurality of cooling stages to a temperature sufficient to produce at least one liquid phase portion predominating in C 2 , C 3 , C 4 and C 5 and higher molecular weight hydrocarbons, the at least one liquid phase portion predominating in C 2 , C 3 , C 4 and C 5 and higher molecular weight hydrocarbons is separated from the main gas stream during the course of the cooling, the thus separated liquid phase portion or portions predominating in C 2 , C 3 , C 4 and C 5 and higher molecular weight hydrocarbons is further separated into a vapor phase portion predominating in C 2 , C 3 , and C 4 hydrocarbons and at least one liquid phase portion predominating in C 5 and higher molecular weight hydrocarbons, at least one second separation step, at least one portion of the at least one vapor phase portion predominating in C 2 , C 3 and C 4 , hydrocarbons is recovered as at least one product of the process and at least one portion of the remaining portion of the at least one phase portion predominating in C 2 , C 3 and C 4 hydrocarbons is recycled to and recombined with the main gas stream as a liquid phase.

Method of treating natural gas to remove ethane and higher hydrocarbons

A high pressure stream of natural gas is treated to remove ethane and higher boiling point hydrocarbons and to produce a low pressure stream of pipeline gas and a high pressure stream of pipeline gas. The method comprises the steps of: (a) passing at least a portion of said high pressure stream of natural gas sequentially through: (1) a first heat exchanger where said stream of natural gas is cooled, (2) a Joule-Thompson valve where said stream of natural gas is expanded adiabatically and the temperature and pressure of the stream are each reduced sufficiently to cause ethane and high boiling fluids to condense, and (3) a first gas/liquid separator where a stream of low pressure pipeline gas is separated from condensed fluids; (b) withdrawing the low pressure pipeline gas from said first separator and flowing it through said first heat exchanger, where the gas is warmed, and into a pipeline or other suitable collector; and (c) withdrawing the condensed fluids from said first separator.