СИСТЕМА ДЛЯ ОБЕССЕРИВАНИЯ С МЕХАНИЗМОМ ПЕРЕНОСА СОРБЕНТА

FIELD: chemical industry; petrochemical industry; other industries; methods and the devices for removal of the sulfur from the streams of the fluid medium containing the hydrocarbons. SUBSTANCE: the invention is pertaining to the method and the installation for removal of the sulfur from the streams of the fluid medium containing the hydrocarbons. The method of desulfurization includes the following stages: a) contacting of the hydrocarbon-containing stream of the fluid medium with the solid particles of the sorbent in the reactor, (b) the increase of the pressure in the reactor airlock storage bin up to the filling pressure, (c) transportation of the sulfur filled particles of the sorbent from the reactor into the being under pressure airlock storage bin of the reactor, (d) reduction of the pressure in the filled airlock storage bin to the pressure of release, (e) transportation of the sulfur filled particles of the sorbent from the filled and being under low pressure airlock storage bin of the reactor into the recuperator and (f) contacting of the sorbent particles with the oxygen-bearing recuperation stream. The installation of desulfurization contains the reactor with the fluidized layer of the sorbent, the receiver of the reactor for reception of the sulfur filled particles of the sorbent, the airlock storage bin of the reactor, the receiver of the recuperator for reception of the recuperated particles of the sorbent, the airlock storage bin of the recuperator for reception of the recuperated particles of the sorbent and the installation of the recuperation. The control system of transmission of the finely dispersed solid particles from the first container into the second container contains the airlock storage bin disposed streamwise between the first and second containers, the valve for filling up by the particles disposed streamwise between the first container and the airlock storage bin, the valve for release of the particles disposed streamwise between the ...

КОНТАКТОР С РАЗДЕЛЕННЫМ ПОТОКОМ

... 1. Контактор с разделенным потоком, содержащий: ! корпус, имеющий первую головку и вторую головку, расположенную на ней; ! два или более отдельных неподвижных слоя, расположенных по поперечному сечению корпуса; ! один или более не имеющих препятствий проходов для потока, для обхода каждого неподвижного слоя; и ! одну или более перегородок, расположенных между неподвижными слоями, причем каждый неподвижный слой содержит один или более катализаторов, одну или более ионообменных смол, один или более абсорбентов, один или более адсорбентов или любое их сочетание. ! 2. Контактор по п.1, дополнительно содержащий один или более распределителей, расположенных рядом с выпускным концом одного или более проходов для потока. ! 3. Контактор по п.1, в котором каждый неподвижный слой содержит первый инертный слой, второй инертный слой, и активный слой, содержащий один или более катализаторов, ионообменных смол, абсорбентов, адсорбентов или любое их сочетание, активный слой расположен между первым инертным ...

РЕГЕНЕРАЦИЯ ОЧИСТИТЕЛЬНЫХ СЛОЕВ С ПОМОЩЬЮ СТРУЙНОГО КОМПРЕССОРА В ОТКРЫТОМ КОНТУРЕ

... 1. Способ регенерации очистительного слоя, находящегося в сосуде, в котором используют цикл с открытым контуром, причем осуществляют рециркуляцию части среды, выходящей из сосуда, в качестве подвергающейся рециркуляции композиции, а остальную часть удаляют в атмосферу, способ включает следующие стадии:а) обеспечение инертного газа, находящегося при первом давлении Р1;б) соединение инертного газа с подвергающейся рециркуляции композицией, поступающей из сосуда, с получением регенерирующей композиции, находящейся при втором давлении Р2, причем подвергающаяся рециркуляции композиция находится при третьем давлении Р3 таким образом, что Р1>Р2>Р3; ив) направление регенерирующей композиции в сосуд с целью регенерации очистительного слоя.2. Способ по п.1, в котором обеспечение инертного газа включает подачу инертного газа при давлении Р1, которое, по меньшей мере, в 1,5 раза превышает давление регенерирующей композиции Р2.3. Способ по п.1, в котором обеспечение инертного газа включает подачу инертного ...

ФИЛЬТРЫ, ВКЛЮЧАЮЩИЕ ЧАСТИЦЫ АКТИВИРОВАННОГО УГЛЯ, ПОКРЫТЫЕ ПОЛИДИАЛЛИЛДИМЕТИЛАММОНИЙ ХЛОРИДОМ (pDADMAC), И СПОСОБЫ ИХ ИЗГОТОВЛЕНИЯ

1. Способ получения активированного угля с покрытием, включающий:получение частиц активированного угля со средним размером примерно до 100 мкм; и нанесение покрытия на частицы активированного угля путем распыления капель раствора катионного полимера на поверхность частиц активированного угля, причем раствор катионного полимера включает от примерно 1 до примерно 15 мас.% катионного полимера и размер капель составляет от примерно 5 до примерно 100 мкм.2. Способ по п.1, в котором катионный полимер представляет собой полиаллилдиметиламмоний хлорид (pDADMAC), полидиаллилдиметиламмоний трифторметансульфонат (pDADMAT) или оба полимера.3. Способ по п.2, в котором полимер pDADMAC имеет среднемассовую молекулярную массу (Mw) примерно до 200000 г/моль и среднечисленную молекулярную массу (Mn) примерно до 100000 г/моль.4. Способ по п.1, в котором раствор катионного полимера содержит примерно 2-8 мас.% катионного полимера.5. Способ по п.1, в котором раствор катионного полимера содержит примерно 2-4 мас.% катионного полимера.6. Способ по п.1, в котором стадию нанесения покрытия проводят при давлении жидкости примерно 20-90 фунт/кв. дюйм.7. Способ по п.1, в котором стадию нанесения покрытия проводят при давлении воздуха примерно 60-90 фунт/кв. дюйм.8. Способ по п.1, в котором размер капель раствора катионного полимера составляет примерно 15-55 мкм.9. Способ по п.1, в котором размер капель раствора катионного полимера составляет примерно 20-30 мкм.10. Способ по п.1, в котором покрытие из раствора катионного полимера уменьшает вымывание катионного полимера по меньшей мере на 60%.11. Способ по п.1, в котором покрытие из раствора катионного полимера уменьшает вымывание катионного поли� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК B01J 20/20 (11) (13) 2012 129 514 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2012129514/05, 09.12.2010 (71) Заявитель(и): ПУР ВОТЕР ПЬЮРИФИКЕЙШН ПРОДАКТС, ИНК. (US) Приоритет(ы): (30) Конвенционный ...

КАТАЛИЗАТОР ПРЕВРАЩЕНИЯ СИНТЕЗ-ГАЗА В СПИРТЫ

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 131 826 A (51) МПК B01J 23/89 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019131826, 09.03.2018 (71) Заявитель(и): БАСФ СЕ (DE) Приоритет(ы): (30) Конвенционный приоритет: 10.03.2017 EP 17160382.2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 10.10.2019 (86) Заявка PCT: (87) Публикация заявки PCT: WO 2018/162709 (13.09.2018) R U (54) КАТАЛИЗАТОР ПРЕВРАЩЕНИЯ СИНТЕЗ-ГАЗА В СПИРТЫ (57) Формула изобретения 1. Катализатор превращения синтез-газа, причем указанный катализатор содержит первый каталитический компонент и второй каталитический компонент, где первый каталитический компонент содержит нанесенный на первую пористую оксидную подложку Rh, Mn, щелочной металл M и Fe, и где второй каталитический компонент содержит нанесенный на второй пористый оксидный материал-носитель Cu и переходный металл, отличный от Cu. 2. Катализатор по п. 1, где в первом каталитическом компоненте, молярное соотношение Rh, вычисленного как элементарный Rh, и Mn, вычисленного как элементарный Mn, находится в интервале от 0,1 до 10, предпочтительно в интервале от 1 до 8, более предпочтительно в интервале от 2 до 5; молярное соотношение Rh, вычисленного как элементарный Rh, и Fe, вычисленного как элементарный Fe, находится в интервале от 0,1 до 10, предпочтительно в интервале от 1 до 8, более предпочтительно в интервале от 2 до 5, и молярное соотношение Rh, вычисленного как элементарный Rh, и щелочного металла M, вычисленного как элементарный M, находится в интервале от 0,1 до 5, предпочтительно в интервале от 0,15 до 3, более предпочтительно в интервале от 0,25 до 2,5. 3. Катализатор по п. 1, где щелочной металл M, содержащийся в первом каталитическом компоненте, представляет собой один или более из Na, Li, K, Rb, Cs, Стр.: 1 A 2 0 1 9 1 3 1 8 2 6 A Адрес для переписки: 105064, Москва, а/я 88, "Патентные поверенные Квашнин, Сапельников и партнеры" 2 0 1 9 1 3 1 8 2 6 EP ...

СПОСОБ ПОЛУЧЕНИЯ СОРБЕНТА НА ОСНОВЕ СШИТОГО ПОЛИМЕРА-УГЛЕРОДА

... 1. Способ получения сорбента на основе полимера-углерода, включающий смешение и отверждение:а) углеродистого сорбента,b) отверждающегося аминсодержащего полимера,включающий контактирование аминсодержащего полимера, имеющего первичные аминогруппы, с аллилгалогенидом в присутствии катализатора с образованием отверждающегося аминсодержащего полимера, содержащего концевые аллил-группы, вторичные и третичные аминогруппы,с) серного агента Sв орторомбической, моноклинической или аморфной формеd) ускорителя отверждения ие) необязательно, активатора.2. Способ по п. 1, в котором аминсодержащий полимер имеет среднечисленную молекулярную массу от примерно 1000 до примерно 10000.3. Способ по п. 1, в котором ускорителем отверждения является цинковая соль диэтилдитиокарбамата.4. Способ по п. 1, в котором серный агент вводят в избытке от количества, требуемого для отверждения отверждающегося аминсодержащего полимера в присутствии углеродистого сорбента.

Verfahren zur selektiven Eliminierung von Ammoniak bzw. Ammonium-Ionen aus einer wässrigen Lösung

PROCESS FOR THE REGENRATION OF SOLID SORBENTS

... 1433761 Regeneration of solid sorbents; gas separation PRINCETON CHEMICAL RESEARCH Inc 15 June 1973 [16 June 1972] 28322/73 Heading C1A A solid sobent comprising an alumina component and an alkaline component (as described in Specification 1,433,762) which has been used to removed sulphur oxides and/or nitrogen oxides from gases containing them, is contacted, at 350‹ to 750‹ C. with a gas containing at least 0À01 atm. partial pressure of hydrogen sulphide, to regenerate the sorbent. Preferably the contact is sufficient to provide at least 25 moles of H 2 S for each mole of alkali or alkaline earth metal sulphate, and at least 1À5 moles of H 2 S for each mole of alkali or alkaline earth metal nitrate, produced by adsorption on the sorbent. The alkaline component is at least one salt, oxide or hydroxide of a Group Ia or IIa metal. Lime, dolomite, limestone, magnesia, magnesium carbonate and sodium aluminate (or "alkalized" alumina) are specified.

Shaped catalyst particle

High performance anion-exchange chromatographic packing composition

An anion-exchange chromatographic packing composition has a substrate which comprises particles of from 1 to 75 micrometers diameter and having cation-exchanging sites at least on their available surfaces. The particles have a liquid coating which comprises a hydrophilic, water-soluble, film-forming resin having anion-exchanging sites which attract available cation-exchanging sites of the substrate, whereby the liquid coating is retained by electrostatic bonds on the available surfaces of the substrate particles. ...

Shaped catalyst particle

A catalyst particle comprises the form of a three-dimensional ellipsoidal shape having three major axes, at least two of which are of different lengths. All three axes may be different lengths. The particle may also have at least one intra-particle channel extending from a location on the surface of the particle to through the interior of the particle to a second location on the surface of the particle. There may be 1-24 channels, and may include a cavity which is in communication with the channels. A catalyst particle having the general shape of a sphere and comprising at least one intra-particle channel extending from a first location on the surface of the particle through the interior of the particle to a second location on the surface of the particle is also disclosed along with: a catalyst bed; and method of use of both types of particle.

Inert gas recovery system

Granular filter medium for removing oil from oily water

The filter medium comprises smooth surfaced, non-porous granular glass or filter sand of which some has been treated with a caustic solution to impart active hydroxyl groups thereto and thereafter treated with a trialkoxysilane. The average concentration of treated medium corresponds to up to 3 to 3.5 grams trialkoxysilane per litre of granular medium in the case of filter sand and up to 1.5 to 1.8 grams trialkoxysilane per litre of medium in the case of granular glass, the desired average concentration being attained either by treating the medium with a corresponding amount of the trialkoxysilane or by treating with a higher amount and diluting the treated medium with untreated medium. The filter medium is backwashable to refresh its lipophilic properties, and does not readily plug or foul when in use.

REMOVAL OF MERCURY FROM GASES AND LIQUIDS

... 1533059 Removing mercury from a gas INSTITUT FRANCAIS DU PETROLE 17 Dec 1976 [18 Dec 1975 23 Jan 1976] 52799/76 Heading B1L [Also in Division C1] Mercury is removed from a gas by bringing the gas into contact with an absorbent bed of a) solid dispersant or support selected from silica, alumina, silica-alumina, silicates, aluminates and silico-aluminates, and b) copper in the sulphide state.

METHODS AND SYSTEMS FOR REMOVING FINES FROM HYDROCARBON-CONTAINING FLUIDS

A PROCESS AND APPARATUS FOR PURIFICATION OF WATER

Methods ans systems for removing fines from hydrocarbon-containing fluids.

Process of regeneration of an absorbing mass.

Methods ans systems for removing fines from hydrocarbon-containing fluids.

Methods ans systems for removing fines from hydrocarbon-containing fluids.

A PROCESS AND APPARATUS FOR PURIFICATION OF WATER

RECOVERY PROCEDURE OF HETEROGENEOUS CATALYSTS AND ADSORBTIONMITTELN

USE MONOLITHIC SORBENTIEN FOR PRÄPARATIVE CHROMATOGRAPHI SEPARATION PROCESSES

PROCEDURE AND DEVICE FOR REGENERATING AN ADSORBENT.

PROCEDURE FOR THE REGENERATION FROM MOISTENING, POWDERED ADSORBENTS AS WELL AS DEVICE TO THE EXECUTION OF THE PROCEDURE.

PRODUCTION A HIGH OF AN EFFICIENT ONE, CARRIER LOTS, REGENERATE-CASH KOHLENDIOXYDSORBENTMITTELS.

PROCEDURE FOR THE CLEANING OF FLUE GASES

METHOD FOR THE CHROMATOGRAPHI SEPARATION FROM CATIONS FROM AQUEOUS SAMPLES

Method for Efficiently Treating MB Dye Wastewater Using Renewable Ceramsite Filter Material

The present disclosure relates to a method for efficiently treating MB dye wastewater by using a renewable ceramsite filter material. The method includes: dynamically adsorbing and treating an MB dye in wastewater by using a fixed bed process: feeding the ceramsite filter material into a fixed bed, injecting the MB dye wastewater, and then performing thermal regeneration treatment after reaching a saturated absorption. The prepared ceramsite filter material is reusable. The method of the present disclosure is available at normal temperatures and pressures, and does not cause secondary pollution such as sludges. A solid waste ceramsite filter material fixed-bed adsorption system has advantages of cheap and available adsorbents, good treatment effects, strong regeneration capacity of the adsorbents, and so on. Furthermore, the adsorbents may be repeatedly reused in the process of wastewater treatment, which greatly reduces costs of treatment of the dye wastewater. u?0.4- 5 mg/L -- 10 mg/L ...

Method and a composite for mercury capture from fluid streams

HIGH CAPACITY SOLID FILTRATION MEDIA

Temperature swing adsorption process for the separation of target species from a gas mixture

A temperature swing adsorption process for the removal of a target species, such as an acid gas, from a gas mixture, such as a natural gas stream. Herein, a novel multi-step temperature swing/pressure swing adsorption is utilized to operate while maintaining very high purity levels of contaminant removal from a produc t stream. The present process is particularly effective and beneficial in removing contaminants such as C0 ...

Gas purification process utilizing engineered small particle adsorbents

A gas separation process uses a structured particulate bed of adsorbent coated shapes/particles laid down in the bed in an ordered manner to simulate a monolith by providing longitudinally extensive gas passages by which the gas mixture to be separated can access the adsorbent material along the length of the particles. The particles can be laid down either directly in the bed or in locally structured packages/bundles which themselves are similarly oriented such that the bed particles behave similarly to a monolith but without at least some disadvantages. The adsorbent particles can be formed with a solid, non-porous core with the adsorbent formed as a thin, adherent coating on the exposed exterior surface. Particles may be formed as cylinders/hollow shapes to provide ready access to the adsorbent. The separation may be operated as a kinetic or equilibrium controlled process.

Pressure-temperature swing adsorption process

A pressure-temperature swing adsorption process for the removal of a target species, such as an acid gas, from a gas mixture, such as a natural gas stream. Herein, a novel multi-step temperature swing/pressure swing adsorption is utilized to operate while maintaining very high purity levels of contaminant removal from a product stream. The present process is particularly effective and beneficial in removing contaminants such as CO ...

Methods and systems for removing fines from hydrocarbon-containing fluids

A method of removing fines from a hydrocarbon-containing fluid can include preparing a bed media of particulate earthen material (12). The hydrocarbon-containing fluid having fines therein can be passed through the bed media (12) at a flow rate such that a portion of the fines are retained in the bed media (12) to form a filtered hydrocarbon-containing fluid. The flow rate is sufficient to maintain a wetting film of the hydrocarbon-containing fluid across at least a majority portion of the particulate earthen material which is contacted by the hydrocarbon-containing fluid. The filtered hydrocarbon-containing fluid can be recovered from the bed media (12) via a suitable outlet (16) having substantially reduced or eliminated fines content.

AN EXTRACORPOREAL STABILISED EXPANDED BED ADSORPTION METHOD FOR THE TREATMENT OF SEPSIS

A method of dewatering organic liquids

PROCESS FOR REACTIVATION OF SODA LIME

NOVEL CROSSLINKED POLYMERIC SUBSTRATES METHODS OF PREPARATION AND END USE APPLICATIONS OF THE SUBSTRATES

... ²A composition of matter wherein the composition comprises a siliceous ²substrate ²having silanols on the surface and a polymer selected from the group ²consisting ²essentially of a water soluble polymer, a water soluble copolymer, an alcohol ²soluble ²polymer, an alcohol soluble copolymer, and combinations of such polymers, ²wherein the ²polymer is chemically bonded to the siliceous substrate by a silane linking ²material ²having the general formula² O3/2SiQY²that is derived from an alkoxy-functional silane having the general formula²(RO)3SiQX²and processes for preparing the crosslinked polymer that is chemically bonded ²to the ²surface of the siliceous substrate.² ...

SWING ADSORPTION PROCESSES UTILIZING CONTROLLED ADSORPTION FRONTS

A process for reducing the loss of valuable products by improving the overall recovery of a contaminant gas component in swing adsorption processes. The present invention utilizes at least two adsorption beds, in series, with separately controlled cycles to control the adsorption front and optionally to maximize the overall capacity of a swing adsorption process and to improve overall recovery a contaminant gas component from a feed gas mixture.

TREATMENT OF CONTAMINATED LIQUIDS

Apparatus and method for the treatment of a contaminated liquid to remove contaminants from said liquid. The apparatus comprises a bed of a carbon based adsorbent material capable of electrochemical regeneration, at least one pair of electrodes operable to pass an electric current through said bed to regenerate the adsorbent material, and means to admit contaminated liquid into said bed to contact said adsorbent material at a flow rate which is sufficiently high to pass the liquid through the bed but below the flow rate required to fluidise the bed of adsorbent material.

IMPROVED SOLID FILTRATION MEDIA INCORPORATING ELEVATED LEVELS OF PERMANGANATE AND WATER

An improved filtration media, method of preparing the media, and method of treating a fluid stream with the media are disclosed. The improved media comprises a substrate having elevated levels of permanganate and water in one embodiment. More specifically, the improved media comprises a porous substrate impregnated with at least approximately 5 % permanganate, and at least approximately 10 % water, by weight. In another embodiment, the media further comprises sodium bicarbonate. Improved efficiency of removal of undesirable compounds such as hydrogen sulfide is achieved.

Procédé de purification d'un gaz

Flüssigkeitsbrücke

METHODS AND SYSTEMS FOR REMOVAL OF SMALL PARTICLES FROM HYDROCARBON-CONTAINING FLUID MEDIA

СПОСОБ РЕГЕНЕРАЦИИ СЛОЕВ АДСОРБЕНТА

В изобретении предлагается способ регенерации по меньшей мере одного слоя адсорбента, включающий, по меньшей мере, следующие этапы: (а) контактирование первого слоя (В1) адсорбента с газообразным потоком (10), благодаря которому извлекается по меньшей мере часть веществ, адсорбированных на указанном первом слое (В1) адсорбента; (b) охлаждение второго слоя (В2) адсорбента; при этом обеспечивается байпас (20) вокруг второго слоя (В2) адсорбента, и газообразный поток (10) перед контактом с первым слоем (В1) адсорбента направляется по меньшей мере к одному из указанных: (i) второму слою (В2) адсорбента и (ii) байпасу (20) вокруг второго слоя (В2) адсорбента, причем регулируется доля газообразного потока (10), проходящего через байпас (20).

СПОСОБ РЕГЕНЕРАЦИИ СЛОЕВ АДСОРБЕНТА

В изобретении предлагается способ регенерации по меньшей мере одного слоя адсорбента, включающий, по меньшей мере, следующие этапы: (a) контактирование первого слоя (B1) адсорбента с газообразным потоком (10), благодаря которому извлекается по меньшей мере часть веществ, адсорбированных на указанном первом слое (B1) адсорбента; (b) охлаждение второго слоя (B2) адсорбента; при этом обеспечивается байпас (20) вокруг второго слоя (B2) адсорбента и газообразный поток (10) перед контактом с первым слоем (B1) адсорбента направляется по меньшей мере к одному из указанных: (i) второму слою (B2) адсорбента и (ii) байпасу (20) вокруг второго слоя (B2) адсорбента, причем регулируется доля газообразного потока (10), проходящего через байпас (20).

METHOD BY HEATING ADSORPTION WITH THE USE OF ADJUSTABLE ADSORPTION FRONTS

CONTACTORS BY HEATING ADSORPTION AT VARIABLE TEMPERATURE FOR SEPARATION OF GASES

METHOD OF SELECTIVE REMOVING SULFUR

METHOD OF CLEANING GAS WITH THE USE OF SPECIALLY DEVELOPED ADSORBENTS WITH BY SMALL PARTICLES OF

METHODS AND SYSTEMS FOR REMOVING FINES FROM HYDROCARBON-CONTAINING FLUIDS

Method for the agglomeration of fine superabsorber particles

Manufacturing process for branched and linear alkylated benzene as precursor for enhanced oil recovery surfactant

A process is presented for the preparation of surfactants that are useable in enhanced oil recovery. The surfactants are long chained sulfonated alkylaryl compounds. The process includes recovering linear and lightly branched paraffins from a hydrocarbon stream, dehydrogenating the paraffins, and then alkylating benzene with the olefins generated. The process uses pentasil zeolites to selectively separate the normal and lightly branched paraffins from the hydrocarbon stream.

Jet compressor in the open cycle of the purifying bed regeneration

本发明提供了一种利用惰性气体(例如通过管线供应)的压力使净化床再生的方法和系统。惰性气体(102)以第一压力供应，并与来自容器(110，110a)的循环组合物(116)组合，所述容器(110，110a)含有要再生的材料。这些物料流在小于惰性气体压力的第二压力下形成再生流体组合物(114)，然后其进入容器中使净化床再生。喷气压缩机(108)可用于使惰性气体和循环流组合。循环回收的组合物使得惰性气体的使用量降低，同时一部分被燃烧或以其他方法处理。

Component separation of fluid mixtures in an aircraft.

Regenerating organically polluted adsorbent esp. activated carbon - by washing with suspension of bacteria which decompose biodegradable pollutants

METHOD AND APPARATUS FOR REGENERATING AN ADSORBENT

Separation of components of mixtures of fluids on an aircraft

La séparation de composants de mélanges de fluides dans un avion utilise un lit adsorbant (10) qui est régénéré par passage d'air ambiant sec à travers le lit adsorbant (10) lorsque l'avion atteint une altitude où cet air ambiant sec est disponible. Un exemple de mélanges qui peuvent être traités de cette manière sont des mélanges eau/huile, des mélanges air/vapeur d'eau et des mélanges air/odeurs. En régénérant périodiquement le lit adsorbant de cette manière, un lit adsorbant de petite taille peut être utilisé tout en ayant une durée de vie substantielle.

BAUXITE AND ATTAPULGUS CLAY ADSORBENT REGENERATION

GAS PURIFICATION PROCESS UTILIZING ENGINEERED SMALL PARTICLE ADSORBENTS

A gas separation process uses a structured particulate bed of adsorbent coated shapes/particles laid down in the bed in an ordered manner to simulate a monolith by providing longitudinally extensive gas passages by which the gas mixture to be separated can access the adsorbent material along the length of the particles. The particles can be laid down either directly in the bed or in locally structured packages/bundles which themselves are similarly oriented such that the bed particles behave similarly to a monolith but without at least some disadvantages. The adsorbent particles can be formed with a solid, non-porous core with the adsorbent formed as a thin, adherent coating on the exposed exterior surface. Particles may be formed as cylinders/hollow shapes to provide ready access to the adsorbent. The separation may be operated as a kinetic or equilibrium controlled process.

METHOD AND APPARATUS FOR GAS PURIFICATION

This invention comprises an adsorption process for the removal of at least N2O from a feed gas stream that also contains nitrogen and possibly CO2 and water. In the process the feed stream is passed over adsorbents to remove impurities such as CO2 and water, then over an additional adsorbent having a high N2O/N2 separation factor. In a preferred mode the invention is an air prepurification process for the removal of impurities from air prior to cryogenic separation of air. An apparatus for operating the process is also disclosed.

ADSORBENTS FOR REMOVING HEAVY METALS AND METHODS FOR PRODUCING AND USING THE SAME

Adsorbents for removing anions of a heavy metals and methods for producing and using same are provided. Metal removing adsorbents comprise a porous material in which at least one oxygen-containing compound of iron, copper, aluminum, titanium, and/or zirconium is incorporated. The oxygen-containing compound may be incorporated into the porous media by impregnation or dispersion of a suitable precursor of such a compound. The precursor may be further treated to yield the oxygen-containing compound. Such adsorbents are particularly useful for removing arsenic and/or selenium from the environment and may be used in treating drinking water sources.

Method for reactivating carbon

A method for reactivating carbon beds is provided which is applicable to carbon beds used in purifying industrial wastes such as filtering water recovered from sewage. The method involves first adding either hydrochloric acid or a hydroxide of an alkali metal to the bed containing some of the water. The water and hydrochloric acid or alkali metal hydroxide are thoroughly mixed to distribute the acid or hydroxide throughout the carbon bed. The mixture of acid or hydroxide and water is retained in the carbon bed for sufficient time to reactivate the carbon. Thereafter the acid or hydroxide and water are removed from the carbon bed.

SORBENT-LOADED BEADS FOR HIGH TEMPERATURE ADSORPTION PROCESSES

A plurality of extrudates comprises sorbent particles (at 50 wt %) in a polymeric matrix that comprises a polymer or blend of polymers including at least one thermoplastic polymer, the extrudates being produced by thermal-induced phase separation or diffusion-induced phase separation from a dope suspension of the thermoplastic polymer, an optional solvent and the sorbent particles. The polymer or blend of polymers is able to withstand exposure to temperatures at or above 220° C. without experiencing significant detrimental effects upon the sorbent capacity of the sorbent particles.

Use of a porous material for the removal of gaseous impurities from a gas mixture

КОНТАКТОР С РАЗДЕЛЕННЫМ ПОТОКОМ

FIELD: machine building. SUBSTANCE: split-flow contactor includes housing having the first head and the second head located on it, two or more separate fixed beds located in the housing cross section, one or more flow passages for bypass of each fixed bed, which have no obstacles, and one or more partition walls located between fixed beds. Each fixed bed includes one or more catalysts, one or more ion exchange resins, one or more absorbents, one or more adsorbents or any of their combinations. According to the tank modernisation method, two or more supporting sieves are arranged inside the tank; at that, each sieve is located separately; one or more obstacle-free flow passages through each of the above supporting sieves is formed, and one or more partition walls are arranged between adjacent supporting sieves. Besides, one or more partition walls are mainly perpendicular to flow passages. According to the method for bringing into contact of one or more fluid media and one or more solid products, the supplied material is introduced to contactor, the first portion of the supplied material is passed through the first fixed bed so that the first effluent is obtained; the second portion of the supplied material is passed through one or more flow passages bypassing the first fixed bed. After that, the second portion is passed through the second fixed bed so that the second effluent is obtained; the first effluent is passed through one or more flow passages bypassing the second fixed bed and the first and the second effluents are combined. According to the other version, split-flow contactor includes the housing having the first head and the second head located on it, two or more separate fixed beds located in the housing cross section and mixing volume located between beds. Each fixed bed includes one or more catalysts, one or more ion exchange resins, one or more absorbents, one or more adsorbents or any of their combinations, and each bed includes one or more circular ...

СПОСОБ ИЛИ СИСТЕМА ДЛЯ ДЕСОРБЦИИ ИЗ СЛОЯ АДСОРЕНТА

Изобретение может быть использовано в химической промышленности. Способ десорбции в слое адсорбента включает пропускание потока десорбента через слой адсорбента, расположенный в зоне удаления, для удаления по меньшей мере одного нитрильного соединения и кислородсодержащего соединения. Поток десорбента после десорбции промывают и объединяют с сырьевым потоком для зоны алкилирования после зоны селективного гидрирования. Изобретение позволяет получить достаточное количество регенерирующего агента для десорбции с минимизацией дополнительных затрат. 9 з.п. ф-лы, 2 ил.

ПРОЦЕСС КРИОГЕННОЙ АДСОРБЦИИ ДЛЯ ИЗВЛЕЧЕНИЯ КСЕНОНА

FIELD: technological processes. SUBSTANCE: invention relates to an adsorption process for extracting xenon from a stream of cryogenic liquid or gas in which an adsorbent layer is brought into contact with a xenon-containing liquid or gas stream. Method comprises: i) supplying a supply stream at cryogenic temperatures to the inlet of an adsorption tank, wherein said adsorbent layer comprises an adsorbent selective to xenon; ii) holding said adsorbent layer in a stream to obtain a concentration of xenon at the outlet of said layer, which is equal to 70 % of the concentration of xenon at the inlet of said adsorbent layer or higher; iii) completion of supply to adsorbing layer and blowdown by purge gas; iv) increasing temperature of said adsorbent layer to temperature providing desorption of said xenon; v) extracting the product of xenon desorbed from said adsorbent layer; vi) cooling said adsorbent layer to cryogenic temperatures using a cryogenic liquid and repeating steps i)–vi) in a cyclic manner. Said adsorbent selective to xenon is X type zeolite with ion exchange to silver, wherein degree of ion exchange is 80 % Ag by equivalents. EFFECT: technical result consists in obtaining a highly pure product and safe use of oxygen as purging gas. 23 cl, 10 dwg, 1 tbl, 4 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 707 767 C1 (51) МПК C01B 23/00 (2006.01) B01J 20/18 (2006.01) B01D 53/04 (2006.01) B01J 20/34 (2006.01) F25J 3/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C01B 23/00 (2019.08); B01J 20/18 (2019.08); B01D 53/04 (2019.08); B01J 20/34 (2019.08); F25J 3/04 (2019.08) (21)(22) Заявка: 2019107017, 14.06.2017 14.06.2017 Дата регистрации: 29.11.2019 23.08.2016 US 15/244,359 (73) Патентообладатель(и): ПРАКСАЙР ТЕКНОЛОДЖИ, ИНК. (US) (45) Опубликовано: 29.11.2019 Бюл. № 34 (56) Список документов, цитированных в отчете о поиске: US 2003106336 A1, 12.06.2003. RU 2259522 C1, 27.08.2005. EP 1316357 A1, 04.06.2003. ...

СПОСОБ УДАЛЕНИЯ БАРИЯ ИЗ ВОДЫ

Изобретение относится к адсорбционной очистке сточных вод. Предложен способ уменьшения концентрации бария в воде. Формируют водный оксид марганца и смешивают с содержащей барий водой. При рН более 4,8 водный оксид марганца приобретает отрицательный заряд и барий адсорбируется на отрицательно заряженной поверхности. Оксид марганца с адсорбированным на его поверхности барием смешивают с флоккулянтом. После отделения образовавшегося шлама получают обработанный отходящий поток воды с уменьшенной концентрацией бария. Изобретение обеспечивает упрощение технологии очистки стоков от бария. 3 н. и 22 з.п. ф-лы, 9 ил., 5 табл.

СПОСОБ ПРОИЗВОДСТВА БЕНЗОЛА С РАЗВЕТВЛЕННЫМ И ЛИНЕЙНЫМ АЛКИЛЬНЫМ ЗАМЕСТИТЕЛЕМ В КАЧЕСТВЕ ПРЕДШЕСТВЕННИКА ПОВЕРХНОСТНО-АКТИВНОГО ВЕЩЕСТВА ДЛЯ УЛУЧШЕННОГО ИЗВЛЕЧЕНИЯ НЕФТИ

... 1. Способ получения слабо разветвленных алкилбензолов, включающий: ! пропускание смеси углеводородов, содержащей парафины с 14-23 атомами углерода, через адсорбционную систему разделения, содержащую адсорбционную систему разделения с подвижным слоем, создавая таким образом поток экстракта, содержащий нормальные и монометил разветвленные парафины, и поток рафината, содержащий отличные от нормальных и более разветвленные парафины; ! подачу потока экстракта в реактор дегидрирования для получения потока олефинов, содержащего олефины и диолефины; ! подачу потока олефинов и потока ароматических веществ в реактор алкилирования для получения потока алкилароматических веществ. ! 2. Способ по п.1, в котором смесь углеводородов является газойлем неглубокого гидрирования. ! 3. Способ по п.1, в котором в адсорбционной системе разделения используют силикалит в качестве адсорбента. ! 4. Способ по п.1, в котором адсорбент в адсорбционной системе разделения является мезопористым диоксидом кремния. ! 5.

КОМПОЗИЦИЯ СОРБЕНТА

... 1. Способ извлечения тяжелого металла или содержащего тяжелый металл соединения из текучей среды, причем способ включает введение в контакт текучей среды, содержащей тяжелый металл или содержащее тяжелый металл соединение, с композицией сорбента, содержащей оксид марганца, соосажденный с материалом подложки или на материале подложки, при условиях, приемлемых для извлечения тяжелого металла или содержащего тяжелый металл соединения из текучей среды. ! 2. Способ по п.1, где композиция сорбента содержит оксид марганца (III) и/или оксид марганца (IV). ! 3. Способ по п.2, где композиция сорбента содержит значительную долю оксида марганца (III). ! 4. Способ по п.1, где материал подложки содержит тугоплавкий металл. !5. Способ по п.1, где материал подложки содержит оксид металла. ! 6. Способ по п.1, где материал подложки выбирают из группы материалов подложки, включающей оксид церия (СеО2), оксид алюминия (Al2O3), оксид титана (TiO2), оксид кремния (SiO2), оксид хрома (CrO2) и оксид циркония ( ...

СИСТЕМА ДЛЯ ОБЕССЕРИВАНИЯ С МЕХАНИЗМОМ ПЕРЕНОСА СОРБЕНТА

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (51) ÌÏÊ 7 (11) 2004 132 208 (13) A B 01 J 8/18 ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2004132208/15, 24.02.2003 (71) Çà âèòåëü(è): ÊÎÍÎÊÎÔÈËËÈÏÑ ÊÎÌÏÀÍÈ (US) (30) Ïðèîðèòåò: 04.04.2002 US 60/370,488 11.04.2002 US 10/120,700 (43) Äàòà ïóáëèêàöèè çà âêè: 10.06.2005 Áþë. ¹ 16 (74) Ïàòåíòíûé ïîâåðåííûé: Åãîðîâà Ãàëèíà Áîðèñîâíà (87) Ïóáëèêàöè PCT: WO 03/084656 (16.10.2003) Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. Ã.Á. Åãîðîâîé R U Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá òðàíñïîðòèðîâêè òîíêîäèñïåðñíûõ òâåðäûõ ÷àñòèö èç óãëåâîäîðîäíîé ñðåäû âûñîêîãî äàâëåíè â êèñëîðîäíóþ ñðåäó íèçêîãî äàâëåíè , âêëþ÷àþùèé ñëåäóþùèå ñòàäèè: (a) ïîâûøåíèå äàâëåíè â øëþçîâîì áóíêåðå äî äàâëåíè íàïîëíåíè , îáåñïå÷èâà ïîëó÷åíèå øëþçîâîãî áóíêåðà ïîä âûñîêèì äàâëåíèåì, (b) íàïîëíåíèå øëþçîâîãî áóíêåðà ïîä âûñîêèì äàâëåíèåì òâåðäûìè ÷àñòèöàìè èç óãëåâîäîðîäíîé ñðåäû âûñîêîãî äàâëåíè , îáåñïå÷èâà ïîëó÷åíèå íàïîëíåííîãî øëþçîâîãî áóíêåðà ïîä âûñîêèì äàâëåíèåì, (c) ñáðîñ äàâëåíè â íàïîëíåííîì øëþçîâîì áóíêåðå ïîä âûñîêèì äàâëåíèåì äî äàâëåíè âûïóñêà, îáåñïå÷èâà ïîëó÷åíèå íàïîëíåííîãî øëþçîâîãî áóíêåðà, íàõîä ùåãîñ ïðè íèçêîì äàâëåíèè, (d) ïðîäóâêó íàïîëíåííîãî øëþçîâîãî áóíêåðà, íàõîä ùåãîñ ïðè íèçêîì äàâëåíèè, ïðîäóâî÷íûì ãàçîì, îáåñïå÷èâà ïîëó÷åíèå ïðîäóòîãî íàïîëíåííîãî øëþçîâîãî áóíêåðà, íàõîä ùåãîñ ïðè íèçêîì äàâëåíèè, è (e) âûïóñê òâåðäûõ ÷àñòèö èç ïðîäóòîãî íàïîëíåííîãî øëþçîâîãî áóíêåðà, íàõîä ùåãîñ ïðè íèçêîì äàâëåíèè, â êèñëîðîäíóþ ñðåäó íèçêîãî äàâëåíè , îáåñïå÷èâà ïîëó÷åíèå îïîðîæíåííîãî øëþçîâîãî áóíêåðà, íàõîä ùåãîñ ïðè íèçêîì äàâëåíèè. 2. Ñïîñîá ïî ï.1, ïðè êîòîðîì äàâëåíèå íàïîëíåíè îòëè÷àåòñ íå áîëåå ÷åì íà 20%, îò äàâëåíè â óãëåâîäîðîäíîé ñðåäå âûñîêîãî äàâëåíè è äàâëåíèå âûïóñêà îòëè÷àåòñ íå áîëåå ÷åì íà 20%, îò äàâëåíè êèñëîðîäíîé ñðåäû íèçêîãî äàâëåíè , â ÷àñòíîñòè, äàâëåíèå â óãëåâîäîðîäíîé ...

VERFAHREN ZUR REGENERIERUNG VON FESTEN SORPTIONSMITTELN

Inert gas recovery

A method comprises the steps of supplying a first gas stream to an oxidation reactor 22 containing a solid state oxygen carrier and oxidizing the impurities in the first gas stream in the presence of the solid state oxygen carrier to form a second gas stream containing carbon dioxide and water, supplying the second gas stream to a carbon dioxide removal column 26 where the carbon dioxide is removed and forms a third gas stream. Water is removed from the third gas stream in an absorption column 30 to produce a purified inert gas, and the exhausted, purified inert gas is collected from the absorption column for conveying to a process utilising the inert gas. Advantageously the method may be used when recovering an inert gases from processes such as vacuum furnaces wherein the recovered gas stream is of around 6N purity (99.9999% pure) i.e. having 1ppm total contaminants.

A method and apparatus for removing water from compressed air

PROCESS AND APPARATUS FOR EFFECTING REGENERATIVE SULFUR BINDING

Methods of preparing a surface-activated titanium oxide product and of using same in water treatment processes

A method for producing a surface-activated crystalline titanium oxide product having a high adsorptive capacity and a high rate of adsorption with respect to dissolved contaminants includes the steps of preparing a titanium oxide precipitate from a mixture comprising a hydrolysable titanium compound and heating the precipitate at a temperature of less than 300 {C, without calcining the precipitate. Preferably, the titanium oxide product includes crystalline anatase having primary crystallite diameters in the range of 1-30nm. The surface-activated crystalline titanium oxide product is used in methods to remove dissolved inorganic contaminants form dilute aqueous streams by suspending the product in an aqueous stream or by filtering an aqueous stream through a bed of the product. In another method, a hydrolysable titanium compound is added to an aqueous stream so that titanium oxides form as a co-precipitate with dissolved contaminants within a bed of particulate material.

METHOD AND APPARATUS FOR REGENERATING AN ADSORBENT

GRANULAR FILTER MEDIUM FOR REMOVING OIL FROM OILY WATER

USE OF A POROUS MATERIAL FOR THE DISTANCE OF GASEOUS IMPURITIES FROM A GAS MIXTURE

PROCEDURE FOR THE ADSORPTION/CSEPARATION

PROCEDURE FOR THE AGGLOMERATION OF SUPERCABSORBER FINE PARTICLES

PSA PROCEDURE USING A COMPOUND MATERIAL ADSORPTION BED WITH AN ADSORBENT AND PCM AGGLOMERATES

DEVICE FOR A IMMUNOASSAY AND PROCEDURE FOR YOUR USE

PROCEDURE FOR THE PRODUCTION OF A WITH OIL OF LOADED ADSORBENT

Process for the removal of heavy metal from gases, and compositions therefor and therewith

An adsorption/separation method and a medium for adsorption/separation

Carbon dioxide recovery from low concentration sources

A system and method of purifying gaseous carbon dioxide from a gaseous mixture obtained at low pressure from a flue gas by passing the gaseous mixture through a vacuum swing adsorption unit and then a gas purification unit to produce carbon dioxide having a purity of approximately 5 97% by volume or more and also producing a carbon dioxide lean stream, which is returned to the vacuum swing adsorption unit.

A method of dewatering organic liquids

Removal of mercury compounds from glycol

Heavy metal capture mass with improved performances

A capture mass for heavy metals, in particular mercury, contained in a gaseous or liquid feed, said mass comprising: - copper which is present at least in part in the sulphide form, CuxSy; - a porous support based on alumina; characterized in that said porous support has a total pore volume (TPV) in the range 0.8 to 1.5 cm 3/g, a mesopore volume (V6nm-oonm) in the range 0.5 to 1.3 cm 3/g, and a macropore volume (Vioonm) in the range 0.33 to 0.45 cm 3/g, it being understood that the ratio between the mesopore volume and the macropore volume (V6nm-IOOnm / Vioonm) is in the range 1 to 5.

Recycle TSA regen gas to boiler for oxyfuel operations

NO2 may be removed from a carbon dioxide feed gas comprising NO,, and at least one "non-condensable" gas as contaminants by passing the feed gas at a first elevated pressure through a first adsorption system that selectively adsorbs at least NO2 5 to produce at least substantially N02-free carbon dioxide gas. The adsorption system is at least partially regenerated using a carbon dioxide-rich gas recovered from the substantially N02-free carbon dioxide gas after purification. The invention has particular application in removing NO,, and water from flue gas generated by oxyfuel combustion. 34E101 401 M101 E103 E102----- C102 6256 64 V102 76 86 4 t- b C103 36- K101 y - ...

Pressure-temperature swing adsorption process for the separation of heavy hydrocarbons from natural gas streams

The present invention relates to a pressure-temperature swing adsorption process wherein gaseous components that have been adsorbed can be recovered from the adsorbent bed at elevated pressures. In particular, the present invention relates to a pressure-temperature swing adsorption process for the separation of C ...

IMPREGNATED CHARCOAL FOR REMOVING RADIOACTIVE MOLECULES FROM GASES

An impregnated adsorbent for removing radioactive molecules from gas is disclosed wherein charcoal is impregnated by spraying or other simple techniques with a substituted 1,4-diazabicyclo¢2.2.2!octane which is a liquid at atmospheric pressure and a range of normal operating temperatures.

USE OF TYPE V ADSORBENT AND GAS CONCENTRATION FOR C02 ADSORPTION AND CAPTURE

Systems and methods for cooling a feedstream, for concentration of a sorbate in the feedstream and subsequent adsorption utilizing a Type V adsorbent are provided. Preferentiallly, C02 is adsorbed on 2,2-dimethyl-l,3-diaminopropane (dmpn) appended to Mg2(dobpdc) (dobpdc = 4,4'-dioxido-3,3'- biphenyldicarboxylate) or on ?,?'-dimethylethylenediamine (mmen) appended to Mg2(dobpdc).

REMOVAL OF METALS FROM SOLUTION

Swing Adsorption Processes Utilizing Controlled Adsorption Fronts

A process for reducing the loss of valuable products by improving the overall recovery of a contaminant gas component in swing adsorption processes. The present invention utilizes at least two adsorption beds, in series, with separately controlled cycles to control the adsorption front and optionally to maximize the overall capacity of a swing adsorption process and to improve overall recovery a contaminant gas component from a feed gas mixture.

Pressure-Temperature Swing Adsorption Process for the Separation of Heavy Hydrocarbons from Natural Gas Streams

The present invention relates to a pressure-temperature swing adsorption process wherein gaseous components that have been adsorbed can be recovered from the adsorbent bed at elevated pressures. In particular, the present invention relates to a pressure-temperature swing adsorption process for the separation of C 2+ hydrocarbons (hydrocarbons with at least 2 carbon atoms) from natural gas streams to obtain a high purity methane product stream. In more preferred embodiments of the present processes, the processes may be used to obtain multiple, high purity hydrocarbon product streams from natural gas stream feeds resulting in a chromatographic-like fractionation with recovery of high purity individual gaseous component streams.

Gas Purification Process Utilizing Engineered Small Particle Adsorbents

A gas separation process uses a structured particulate bed of adsorbent coated shapes/particles laid down in the bed in an ordered manner to simulate a monolith by providing longitudinally extensive gas passages by which the gas mixture to be separated can access the adsorbent material along the length of the particles. The particles can be laid down either directly in the bed or in locally structured packages/bundles which themselves are similarly oriented such that the bed particles behave similarly to a monolith but without at least some disadvantages. The adsorbent particles can be formed with a solid, non-porous core with the adsorbent formed as a thin, adherent coating on the exposed exterior surface. Particles may be formed as cylinders/hollow shapes to provide ready access to the adsorbent. The separation may be operated as a kinetic or equilibrium controlled process.

Split Flow Contactor

Systems and methods for contacting a liquid, gas, and/or a multi-phase mixture with particulate solids. The system can include a body having a first head and a second head disposed thereon. Two or more discrete fixed beds can be disposed across a cross-section of the body. One or more unobstructed fluid flow paths can bypass each fixed bed, and one or more baffles can be disposed between the fixed beds.

Adsorbents for Radioisotopes, Preparation Method Thereof, and Radioisotope Generators Using the Same

Disclosed is a novel adsorbent for use in a 99 Mo/ 99m Tc generator, which is a medical diagnostic radioisotope generator, and in a 188 W/ 188 Re generator, which is a therapeutic radioisotope generator. The adsorbent composed of sulfated alumina or alumina-sulfated zirconia exhibits adsorption capacity superior to that of conventional adsorbents, and is stable and is thus loaded in a dry state in an adsorption column so that the radioisotope 99 Mo or 188 W can be adsorbed. Thus, it is possible to miniaturize the column, and such a miniaturized column is small, convenient to use, and highly efficient, and extracts a radioisotope satisfying the requirements for pharmaceuticals, and thus can be useful for radioisotope generators extracting 99m Tc or 188 Re.

Crosslinked Polymer-Carbon Sorbent for Removal of Heavy Metals, Toxic Materials and Carbon Dioxide

A polymer-carbon sorbent for removing carbon dioxide, heavy metals and toxic materials from a flue gas from a combustion process, such as coal-fired power plants, is described. The sorbent comprises a carbonaceous sorbent material and a cured amine-containing polymer, and sulfur. The polymer-carbon sorbents are formed by curing a curable amine-containing polymer in the presence of the carbonaceous sorbent material, sulfur, a cure accelerator and, optionally, a cure activator. A convenient carbonaceous sorbent material is an activated carbon, and a convenient curable amine-containing polymer is an allyl-containing poly(ethyleneimine), having a number average molecular weight between about 1,000 and about 10,000. The polymer-carbon sorbents may contain sulfur in excess of an amount needed to cure the curable amine-containing polymer. Such polymer-carbon sorbents are shown to capture more mercury, in both elemental an ionic forms, compared to activated carbon and adsorb carbon dioxide.

Sol-gel derived compositions

Disclosed are sol gel derived materials obtained from at least one first precursor and at least one second precursor, as well as sol gel derived compositions containing a plurality of alkylsiloxy substituents obtained from such sol-gel derived materials.

Hydrocarbon feedstock average molecular weight increase

The invention deals with hydrocarbon feedstock molecular weight increase via olefin oligomerization and/or olefin alkylation onto aromatic rings. Addition of a purification section allows improved unit working time and lower maintenance.

Capture mass composed of elemental sulphur deposited on a porous support for capturing heavy metals

The present invention concerns the elimination of heavy metals, in particular mercury and possibly arsenic and lead, present in a dry or moist gaseous effluent ( 1 ) by means of a capture mass ( 2 ) comprising a porous support at least part of which is of low mesoporosity and an active phase based on sulphur. The invention is advantageously applicable to the treatment of gas of industrial origin, synthesis gas or natural gas.

PRESERVATIVE REMOVAL FROM EYE DROPS

A particulate plug for removing a preservative from a solution, suspension, or emulsion comprising a drug is presented. The plug comprises microparticles of a hydrophobic polymer/fatty acid blend. The microparticles of hydrophobic polymer/fatty acid blend selectively absorb preservative allowing the drug to remain in solution for delivery. 1. A particulate plug for removing a preservative from a solution , suspension , or emulsion comprising a drug , the particulate plug comprising microparticles of a hydrophobic polymer/fatty acid blend , wherein the microparticles form a particulate plug capable of being fitted to an outlet of a container for the solution , emulsion , or suspension , wherein the particulate plug selectively removes a preservative from the solution , emulsion , or suspension.2. The particulate plug of claim 1 , wherein the microparticles have a dimension of 5 μm to about 10 claim 1 ,000 μm.3. The particulate plug of claim 1 , wherein the preservative comprises benzalkonium chloride (BAK).4. The particulate plug of claim 1 , wherein the hydrophobic polymer/fatty acid blend comprises a hydrophobic polymer selected from isotactic polypropylene claim 1 , low density polyethylene claim 1 , or high density polyethylene.5. The particulate plug of claim 4 , wherein the isotactic polypropylene has an average MW of about 250 claim 4 ,000.6. The particulate plug of claim 4 , wherein the isotactic polypropylene has an average MW of about 100 claim 4 ,000 to about 300 claim 4 ,000.7. The particulate plug of claim 4 , wherein the isotactic polypropylene has an average MW of greater than 300 claim 4 ,000.8. The particulate plug of claim 1 , wherein the hydrophobic polymer/fatty acid blend comprises a hydrophobic polymer selected from homopolymers of ethylene claim 1 , propylene claim 1 , 1-butene claim 1 , 4-methyl-l-pentene claim 1 , 3-methyl-1-butene claim 1 , 4 claim 1 ,4-dimethyl-1-pentene claim 1 , 3-methyl-1-pentene claim 1 , 4-methyl-1-hexene claim 1 , 5- ...

EXHAUST GAS TREATMENT SYSTEM

An exhaust system for the treatment of an exhaust gas comprising a species to be treated, the system comprising: a first gas inlet for providing a flow of exhaust gas; a second gas inlet for providing a flow of heated gas; a plurality of sorbent beds for releasably storing the species; one or more catalysts for decomposing the species; first and second exhaust gas outlets; and a valve system configured to establish independently for each sorbent bed fluid communication in a first or second configuration, wherein: i) in the first configuration the flow of the exhaust gas from the first gas inlet contacts a sorbent bed for storing the species and then passes to the first gas outlet; and ii) in the second configuration the flow of heated gas from the second gas inlet contacts a sorbent bed for releasing the species, passes to one of the one or more catalysts and then passes to the second exhaust gas outlet; wherein the valve system is configured to ensure that at least one sorbent bed is in the first configuration and, preferably at least one other sorbent bed is in the second configuration. 116-. (canceled)17. An exhaust system for the treatment of an exhaust gas comprising a species to be treated , the system comprising:a first gas inlet for providing a flow of exhaust gas;a second gas inlet for providing a flow of heated gas;a plurality of sorbent beds for releasably storing the species;one or more catalysts for decomposing the species;first and second exhaust gas outlets; and i) in the first configuration the flow of the exhaust gas from the first gas inlet contacts a sorbent bed for storing the species and then passes to the first gas outlet; and', 'ii) in the second configuration the flow of heated gas from the second gas inlet contacts a sorbent bed for releasing the species, passes to one of the one or more catalysts and then passes to the second exhaust gas outlet;, 'a valve system configured to establish independently for each sorbent bed fluid communication ...

Adsorption based gas separation method

An adsorbent bed, including at least one elementary composite structure that includes adsorbent particles in a polymer matrix, wherein the adsorbent bed has a bed packing, ρ bed , defined as a volume occupied by the at least one elementary composite structure V ecs divided by a volume of the adsorbent bed V bed where ρ bed is greater than 0.60.

ETHYLENE SEPARATIONS USING SMALL PORE ZEOLITES CONTAINING DOUBLE-SIX RINGS AND CAGES

The present invention describes a process to separate ethylene products from impurities such as nitrogen, hydrogen, ethane, propane and isobutane without the need for distillation processes. 1. A method for removing impurities from a feed gas stream of ethylene-containing stranded gas including impurities and ethylene , comprising:(a) alternating an input of the feed gas stream between an at least two beds of a one or more adsorbent particles made from a homogeneous mixture, wherein the one or more adsorbent particles comprise a zeolite SSZ-98 or a zeolite SSZ-105;(b) wherein the feed gas stream contacts one of the at least two beds at a given time by an adsorption step and a product gas stream is simultaneously vented from another of the at least two beds by a desorption step;(c) wherein a contacting in the one of the at least two beds occurs at a feed pressure of from about 345 kPa to about 3450 kPa for a sufficient time to preferentially adsorb the ethylene from the feed gas stream and thereby producing a product gas stream during the desorption step containing no greater than about 2 mol % impurities, at least about 98 mol % of the ethylene recovered from the feed gas stream; and(d) wherein the feed gas stream is input at a feed end of each of the at least two beds, the product gas stream is removed from the feed end of each of the at least two beds during the desorption step, and the impurity-enriched gas stream is produced from the tail gas end of the at least two beds.2. The method of wherein the impurities are nitrogen claim 1 , hydrogen claim 1 , propane claim 1 , isobutane and ethane.3. The method of claim 1 , wherein the zeolite SSZ-98 or the zeolite SSZ-105 has a Si:Al mole ratio of from 5 to 100.4. The method of claim 1 , wherein the zeolite SSZ-98 or the SSZ-105 has a cation as a framework ion and the cation is selected from the group consisting of a sodium claim 1 , a calcium claim 1 , a potassium claim 1 , a lithium claim 1 , a magnesium claim 1 , a ...

CHROMATOGRAPHY COLUMN WITH LOCKED PACKED BED AND METHOD OF PACKING THAT COLUMN

A chromatography column has a retaining plug permanently fixed to an upstream end of the column and blocks one end of the bore through the column. The plug has a fluid passage therethrough. An upstream end of the passage is preferably but optionally larger in diameter than a downstream end of the passage. An upstream porous member upstream of the retaining plug is held by an upstream end cap and urged toward the plug. Chromatographic media extends from the upstream porous member, through the passage in the retaining plug, to a downstream porous member held by a downstream end cap. The media between the retaining plug and the downstream porous member are under compression to form a bed of packed media. 1. A chromatography column having a tubular body with opposing upstream and downstream ends with upstream and downstream end fittings connected to the tubular body , the tubular body having an internal bore extending along a longitudinal axis of the tubular body and column , the column comprising:a retaining plug blocking an upstream end of the bore and having a passage extending between upstream and downstream ends of the retaining plug and filled with chromatographic media;a downstream porous member blocking the downstream end of the bore, the bore having a continuous wall between the retaining plug and the downstream porous member;a slurry-packed bed of chromatographic media held in compression in the bore by the retaining plug and the downstream porous member;2. The column of claim 1 , wherein the passage contains porous media and further comprising an upstream porous member upstream of the retaining plug located to filter fluid flow through the bore into the at least one passage.3. The column of claim 2 , wherein the passage has a first diameter at the upstream end of the retaining plug and a second diameter at the downstream end of the retaining plug and the first diameter is larger than the second diameter.4. The column of claim 3 , wherein the first diameter is ...

CONTINUOUS DESULFURIZATION PROCESS BASED ON METAL OXIDE-BASED REGENERABLE SORBENTS

A continuous desulfurization process and process system are described for removal of reduced sulfur species at gas stream concentrations in a range of from about 5 to about 5000 ppmv, using fixed beds containing regenerable sorbents, and for regeneration of such regenerable sorbents. The desulfurization removes the reduced sulfur species of hydrogen sulfide, carbonyl sulfide, carbon disulfide, and/or thiols and disulfides with four or less carbon atoms, to ppbv concentrations. In specific disclosed implementations, regenerable metal oxide-based sorbents are integrated along with a functional and effective process to control the regeneration reaction and process while maintaining a stable dynamic sulfur capacity. A membrane-based process and system is described for producing regeneration and purge gas for the desulfurization.

ADSORBENT FOR HYDROCARBON RECOVERY

Disclosed in certain embodiments are sorbents for capturing heavy hydrocarbons via thermal swing adsorption processes. 1. A thermal swing adsorption system comprising a bed of adsorbent particles , the adsorbent particles comprising amorphous SiOparticles , wherein a relative micropore surface area (RMA) of the amorphous SiOparticles is greater than 10%.2. The thermal swing adsorption system of claim 1 , wherein a total pore volume of the amorphous SiOparticles for pores between 500 nm and 20000 nm in diameter is greater than 70 mm/g.3. The thermal swing adsorption system of claim 1 , wherein a Brunauer-Emmett-Teller (BET) surface area of the amorphous SiOparticles is greater than 500 m/g.4. The thermal swing adsorption system of claim 1 , wherein a bulk density of the amorphous SiOparticles is less than 600 kg/m.5. The thermal swing adsorption system of claim 1 , wherein a size of the amorphous SiOparticles is from 2.4 mm to 4 mm.6. The thermal swing adsorption system of claim 1 , wherein the adsorbent particles further comprise AlOparticles.7. The thermal swing adsorption system of claim 6 , wherein the amorphous SiOparticles are present at a weight % of greater than 80% claim 6 , and wherein the AlOparticles are present at a weight % of up to 20% claim 6 , wherein the weight % is calculated with respect to a total weight of the bed of adsorbent particles.8. A method of removing C5+ or C6+ components from a fluid volume claim 6 , the method comprising:{'sub': 2', '2, 'contacting the fluid volume with a bed of adsorbent particles, the adsorbent particles comprising amorphous SiOparticles, wherein a relative micropore surface area (RMA) of the amorphous SiOparticles is greater than 10%.'}9. The method of claim 8 , wherein a total pore volume of the amorphous SiOparticles for pores between 500 nm and 20000 nm in diameter is greater than 70 mm/g.10. The method of claim 8 , wherein a Brunauer-Emmett-Teller (BET) surface area of the amorphous SiOparticles is greater ...

SYSTEM, METHOD, AND DEVICE FOR SMALL SCALE CARBON DIOXIDE COLLECTION

A device, system, and method for small scale COextraction is disclosed. The device includes a sorbent bed having a sorbent resin. The device also includes a blower in fluid communication with the sorbent bed through at least one duct, as well as a collection tray beneath the sorbent bed and having a drain. The device also includes a capture configuration and a regeneration configuration. The capture configuration includes an air flow driven by the blower passing through the sorbent resin. The regeneration configuration includes the flooding of at least the sorbent resin with regeneration fluid. The regeneration fluid has a higher dissolve inorganic carbon concentration after flooding the sorbent resin. Multiple devices may be employed together as a system capable of providing a continuous product stream having an upgraded concentration of CO. 1. A carbon dioxide collection system , comprising:a plurality of carbon dioxide collection devices, each device comprising:a sorbent bed comprising a sorbent resin;a blower in fluid communication with the sorbent bed through at least one duct;a collection tray beneath the sorbent bed, the collection tray comprising a fluid drain;an air intake and an air exhaust in fluid communication with the air intake through the sorbent bed, the at least one duct, and the blower;a capture configuration comprising an air flow driven by the blower and flowing from the air intake to the air exhaust and passing through the sorbent resin of the sorbent bed, the at least one duct, and the blower; anda regeneration configuration comprising the sorbent bed submerged in a regeneration fluid;wherein moving the device from the capture configuration to the regeneration configuration comprises flooding at least the sorbent resin of the sorbent bed with the regeneration fluid having a first dissolved inorganic carbon (DIC) concentration, the regeneration fluid introduced to the sorbent resin via a liquid input and preventing the air flow from passing ...

A catalyst for converting synthesis gas to alcohols

A catalyst for converting a synthesis gas, said catalyst comprising a first catalyst component and a second catalyst component, wherein the first catalyst component comprises, supported on a first porous oxidic substrate, Rh, Mn, an alkali metal M and Fe, and wherein the second catalyst component comprises, supported on a second porous oxidic support material, Cu and a transition metal other than Cu.

IMPROVEMENTS IN OR RELATING TO CARBON CAPTURE

In one proposed application provided by the present invention, and as shown in FIG. COis captured from a dirty flue gas in a fluid bed Turboscrubber® to be recycled rapidly to a fluid bed Turbostripper® where it is desorbed into a clean air stream for introduction to a horticultural glass-house for enhancement of fruit, vegetable or other crop growth. In a further application of the present invention as shown in FIG. COenriched saltwater is circulated through a tank (), to feed Algae thereby allowing fast photosynthesis to occur in, for example, the production of bio fuels. Alternatively, if the Algae suspension is sufficiently robust, it can be pumped around a Turboscrubber® () and the Algae tank () in order to keep it in constant contact with the COenriched aqueous solution. 1. A process for absorption of carbon dioxide gas in fluidised bed scrubbers , which enhances capture without chemical reaction by a combination of high liquid to gas ratios , being at least 20 litres/mand simultaneous use of saline solutions with an Ionic Strength of 0.2 or greater.2. A process according to claim 1 , characterised in that the fluidised bed employs hollow or low density solid plastic claim 1 , foam or resin manufactured elements of any form claim 1 , shape or size to ensure good contact and high interfacial area between counter current gas and liquid phases to minimise gaseous flow pressure drop and to avoid “flooding”.3. A process according to claim 1 , characterised in that the concentration of the carbon dioxide in the gas phase is preferably in excess of 1% by volume.4. A process according to claim 1 , characterised in that the carbon dioxide claim 1 , once captured claim 1 , is quickly claim 1 , i.e. within a few minutes claim 1 , removed from the liquid phase after absorptive capture into solution by cycling the liquid to a fluidised bed or other stripping device to enable desorption to take place.5. A process according to claim 1 , characterised in that the preferred ...

Shaped catalyst particle

The invention concerns particles which may include a catalytically active component, in the form of a three-dimensional ellipsoidal shape having three major axes at least two of which axes are of different lengths. Beds of such particles are useful for forming particle beds through which a fluid may flow.

METHOD FOR PRODUCING A HORIZONTAL FLOW ADSORBER AND DIVIDING WALL MODULE FOR USE IN SAID METHOD

The method serves for producing a horizontal through flow adsorber with two adsorbents which contains two immediately adjacent packings in a horizontal or vertical container. Between the two packings there is a vertical interface. In a step (a) a vertical dividing wall is positioned on the bottom of the adsorption bed and then on each side of the dividing wall one of the two adsorbents is charged up to a first height that does not exceed the upper edge of the separating ring. In the following step (b) the vertical dividing wall is displaced upwardly until the lower edge thereof is still placed in the existing packing. Then, on each side of the dividing wall one of the two adsorbents is charged up to a second height that does not exceed the upper edge of the displaced dividing wall. Finally, step (b) is repeated until a predetermined filling height is achieved. According to the invention, the vertical dividing wall is composed of at least three dividing wall modules () that extend only over a part of the length or of the periphery of the vertical dividing wall and are movable in a vertical direction independently of one another. 1. The method for producing a horizontal through flow adsorber with two adsorbents which contains two immediately adjacent packings in a horizontal or vertical container , wherein there is a vertical interface between the two packings , and wherein a first packing contains a first adsorbent and a second packing contains a second adsorbent that differs from the first adsorbent in the chemical composition and/or particle size thereof , wherein , in the method(a) a vertical dividing wall is positioned on the bottom of the adsorption bed and then on each side of the dividing wall one of the two adsorbents is charged up to a first height that does not exceed the upper edge of the dividing wall,(b) the vertical dividing wall is displaced upwardly until the lower edge thereof is still placed in the existing packing, and on each side of the dividing ...

POWDER, METHOD OF PRODUCING POWDER AND ADSORPTION APPARATUS

The present invention provides that powder is mainly constituted from secondary particles of hydroxyapatite. The secondary particles are obtained by drying a slurry containing primary particles of hydroxyapatite and aggregates thereof and granulating the primary particles and the aggregates. A bulk density of the powder is 0.65 g/mL or more and a specific surface area of the secondary particles is 70 m/g or more. The powder of the present invention has high strength and is capable of exhibiting superior adsorption capability when it is used for an adsorbent an adsorption apparatus has. 1. A powder comprising mainly hydroxyapatite ,wherein the powder is obtained by drying a slurry containing primary particles of the hydroxyapatite, granulating the dried slurry to obtain granulated particles and sintering the granulated particles, and{'sup': 2', '2, 'wherein the powder has a bulk density of 0.65 g/mL or more and a specific surface area of 25 m/g to 52 m/g.'}2. The powder as claimed in claim 1 , wherein the powder has a sphericity of about 0.91 to about 1.00.3. The powder as claimed in claim 1 , wherein the powder is classified so as to have an average particle size of 40±4 μm claim 1 , wherein when a repose angle of the classified powder is measured claim 1 , the classified powder has the repose angle of about 22° to about 24°.4. The powder as claimed in claim 1 , wherein the powder is formed by sintering the granulated particles at a temperature of 700° C. to obtain sintered powder claim 1 , and then classifying the sintered powder so as to have an average particle size of 40±4 μm claim 1 , wherein the classified sintered powder has a compressive particle strength of about 7.3 MPa to about 9.4 MPa.5. The powder as claimed in claim 1 , wherein the powder is formed by sintering the granulated particles at a temperature of 700° C. to obtain sintered powder including particles each having a surface and micropores formed on the surface claim 1 , wherein the micropores ...

NOVEL CROSSLINKED POLYMERIC SUBSTRATES METHODS OF PREPARATION AND END USE APPLICATIONS OF THE SUBSTRATES

A composition of matter wherein the composition comprises a siliceous substrate having silanols on the surface and a polymer selected from the group consisting essentially of a water soluble polymer, a water soluble copolymer, an alcohol soluble polymer, an alcohol soluble copolymer, and combinations of such polymers, wherein the polymer is chemically bonded to the siliceous substrate by a silane linking material having the general formula 133.-. (canceled)34. A process for preparing a crosslinked polymer that is chemically bonded to the surface of a siliceous substrate , said process consisting essentially of:(I) heating a predetermined amount of alcohol in a reaction vessel with stirring, wherein the alcohol has from 1 to 9 carbon atoms;(II) adding a predetermined amount of a hydrolysis catalyst selected from organic acids having from 1 to 7 carbon atoms:(III) adding a predetermined amount of a silanol condensation catalyst;(IV) adding a predetermined amount of siliceous substrate containing reactive silanols; [{'br': None, 'sub': '3', '(RO)SiQX'}, 'wherein R is a hydrocarbon group having from 1 to 6 carbon atoms, Q is a hydrocarbon group having from 0 to 6 carbon atoms, X is a functional group selected from the group consisting of epoxy, halogen, methacrylate, vinyl, amine, allyl, phosphonate, styrlamine, and sulfide;, '(V) adding a predetermined amount of silane coupling agent, said silane being an alkoxy-functional silane having the general formula'} (i) a water soluble polymer,', '(ii) a water soluble copolymer,', '(iii) an alcohol soluble polymer,', '(iv) an alcohol soluble copolymer, and', '(v) combinations of (i) to (iv),, '(VI) adding a predetermined amount of polymer, said polymer being selected from the group consisting of'}(VII) stirring the combination of (I) to (VI) for a period of time of 12 hours or less at a temperature of 75° C. or less; wherein the ratio of polymer to siliceous substrate is in the range of P:S wherein P is 0.1 to 50 and S is 99.9 ...

SELECTIVE ADSORPTION OF HALOCARBON IMPURITIES CONTAINING CL, BR AND I IN FLUOROCARBONS OR HYDROFLUOROCARBONS USING ADSORBENT SUPPORTED METAL OXIDE

Methods for purification of a fluorocarbon or hydrofluorocarbon containing at least one undesired halocarbon impurities comprise flowing the fluorocarbon or hydrofluorocarbon through at least one adsorbent beds to selectively adsorb the at least one undesired halocarbon impurities through physical adsorption and/or chemical adsorption, wherein the at least one adsorbent beds contain a metal oxide supported on an adsorbent in an inert atmosphere. 1. A process for purification of a fluorocarbon or hydrofluorocarbon containing at least one undesired halocarbon impurities , comprising:flowing the fluorocarbon or hydrofluorocarbon through at least one adsorbent beds to selectively adsorb the at least one undesired halocarbon impurities through physical adsorption and/or chemical adsorption, wherein the at least one adsorbent beds contain a metal oxide supported on an adsorbent in an inert atmosphere.2. The process of claim 1 , further comprising:distilling an outlet stream of the at least one adsorption beds to obtain a purified fluorocarbon or hydrofluorocarbon.3. The process of claim 1 , wherein the at least one undesired halocarbon impurities are Cl-containing claim 1 , Br-containing claim 1 , I-containing claim 1 , or combinations thereof halocarbons.4. The process of claim 3 , wherein the at least one undesired halocarbon impurities are chlorofluorocarbons (CFC) and/or hydrochlorofluorocarbons (HCFC).5. The process of claim 1 , wherein the adsorbent is silica claim 1 , alumina or molecular sieves.6. The process of claim 1 , wherein the metal oxide is CuO or MgO.7. The process of claim 1 , wherein the metal oxide is CuO supported by alumina.8. The process of claim 1 , wherein a flow rate of the fluorocarbon or hydrofluorocarbon into the adsorption bed in vapor phase ranges from 0.5 slm to 500 l/min.9. The process of claim 1 , wherein a temperature of the adsorption bed ranges from −50° C. to 150° C.10. The process of claim 1 , wherein a concentration of impurities in ...

POROUS MATERIALS WITH CONTROLLED POROSITY; PROCESS FOR THE PREPARATION THEREOF; AND USE THEREOF FOR CHROMATOGRAPHIC SEPARATIONS

The present invention provides novel chromatographic materials. e.g., for chromatographic separations, processes for their preparation and separations devices containing the chromatographic materials. The chromatographic materials of the invention have controlled porosity and comprise a chromatographic core material and one or more layers of chromatographic surface material which each independently provide an average pore diameter, an average pore volume, or a specific surface area such that the combined layers form a chromatographic material having a predetermined or desired pattern of porosity from the core material to the outermost surface. The materials are useful for HPLC separations, normal-phase selarations, reversed-phase separations, chiral separations, HILIC separations, SFC separations, affinity separations, perfusive separations, partially perfusive separations, and SEC separations. 1. A chromatographic material having controlled porosity.2. The chromatographic material of claim 1 , wherein the material is in the form of a particle.3. The chromatographic material of claim 1 , wherein the material is in the form of a monolith.4. The chromatographic material of claim 1 , wherein the material is in the form of a superficially porous material.5. (canceled)6. (canceled)7. The chromatographic material of claim 1 , comprising a chromatographic core material having a primary surface and one or more layers of a chromatographic surface material.8. (canceled)9. The chromatographic material of claim 7 , wherein the chromatographic core material is an inorganic material claim 7 , an organic material claim 7 , or an inorganic/organic hybrid material.10. (canceled)1222-. (canceled)23. The chromatographic material of claim 7 , wherein each layer of the one or more layers of a chromatographic surface material independently has an average pore diameter of 20 to 1500 Angstroms.24. The chromatographic n material of claim 23 , wherein the average pore diameter of the one or ...

Process for the removal of mercury from hydrocarbon streams containing oxygen

The invention relates to a process for removing and recovering mercury, an impurity, from a hydrocarbon feedstream containing oxygen, such as introduced during hydraulic fracturing. Mercury is selectively removed to very low levels of concentration from fluid streams such as natural gas, cracked gas, hydrogen or naphtha by passage of the stream through an adsorbent bed containing particles of a zeolitic molecular sieve preferably having pore diameters of at least 3.0 angstroms and in which the zeolite crystallites are formed into an aggregate (cylindrical or beads) which contain ionic or elemental silver. These adsorbent particles maintain their capacity for removal of mercury despite the presence of oxygen.

PRESERVATIVE REMOVAL FROM EYE DROPS

A particulate plug for removing a preservative from a solution, suspension, or emulsion comprising a drug is presented. The plug comprises microparticles of a hydrophobic polymer/fatty acid blend. The microparticles of hydrophobic polymer/fatty acid blend selectively absorb preservative allowing the drug to remain in solution for delivery. 1. A particulate plug for removing a preservative from a solution , suspension , or emulsion comprising a drug , the particulate plug comprising microparticles of a hydrophobic polymer/fatty acid blend , wherein the microparticles form a particulate plug capable of being fitted to an outlet of a container for the solution , emulsion , or suspension , wherein the particulate plug rapidly and selectively removes a preservative from the solution , emulsion , or suspension , wherein the drug is lifitegrast.2. The particulate plug of claim 1 , wherein the microparticles have a dimension of 5 to about 10 claim 1 ,000 μm.3. The particulate plug of claim 1 , wherein the preservative comprises benzalkonium chloride (BAK).4. The particulate plug of claim 1 , wherein the hydrophobic polymer/fatty acid blend comprises a hydrophobic polymer selected from isotactic polypropylene claim 1 , low density polyethylene claim 1 , or high density polyethylene.5. The particulate plug of claim 4 , wherein the isotactic polypropylene has an average MW of about 250 claim 4 ,000.6. The particulate plug of claim 4 , wherein the isotactic polypropylene has an average MW of about 100 claim 4 ,000 to about 300 claim 4 ,000.7. The particulate plug of claim 4 , wherein the isotactic polypropylene has an average MW of greater than 300 claim 4 ,000.8. The particulate plug of claim 1 , wherein the hydrophobic polymer/fatty acid blend comprises a hydrophobic polymer selected from homopolymers of ethylene claim 1 , propylene claim 1 , 1-butene claim 1 , 4-methyl-1-pentene claim 1 , 3-methyl-1-butene claim 1 , 4 claim 1 ,4-dimethyl-1-pentene claim 1 , 3-methyl-1- ...

A PROCESS AND APPARATUS FOR PURIFICATION OF WATER

The present disclosure relates to a process for the purification of water. The process includes leading water laden with microorganisms and arsenic through an arsenic adsorption media followed by treating the resultant arsenic deficient water with a disinfectant releasing system to obtain water deficient of arsenic and viable microorganisms. The present disclosure also provides an apparatus for the purification of water using the afore-stated process. 1. A process for removing arsenic and inactivating microorganisms from arsenic and microorganisms laden water; said process comprising:{'b': 140', '144, 'sup': '2', 'removing arsenic from said water by leading said water, against gravity, through a bed of granulated arsenic removal media () comprising iron compounds in an amount ranging from 30 to 70% of the total mass of the bed, said granulated media () having particle size ranging from 400 to 1000 micrometers and surface area ranging from 50 to 400 m/g, for a time period ranging from 5 to 30 minutes, to obtain water with reduced arsenic content; and'}inactivating microorganisms in the water with reduced arsenic content by leading the water with reduced arsenic content through a disinfectant releasing system which releases at least one disinfectant in the water with reduced arsenic content at a rate ranging from 0.1 to 1 mg/liter to cause depletion of viable microbial content therein, to provide water deficient of arsenic and microorganisms, wherein said disinfectant is chlorine.2144. The process according to wherein said granulated arsenic removal media () is prepared by a process co p sing:adding ferric chloride in an amount ranging from 5 to 30% w/v and sodium hydroxide in an amount ranging from 5 to 40% w/v, in water, at a pH ranging from 6.5 to 7 to obtain a slurry;allowing said slurry to settle for a time period ranging from 1 to 8 hours to obtain a residue and a supernatant;separating said supernatant from said residue by at least one method selected from the ...

ADSORPTION SYSTEM

An adsorption system can be used as part of a climate control system in a vehicle or in any other space requiring heating or cooling. 113-. (canceled)14. A climate control system comprising:an output of a first adsorbent bed fluidly connected to an input of a condenser;an output of the condenser fluidly connected to an input of a first reservoir;an output of the first reservoir fluidly connected to a first expansion valve;the first expansion valve fluidly connected to an input of an evaporator; andan output of the evaporator fluidly connected to an input of the first adsorbent bed.15. The climate control system of claim 14 , further comprising:an output of a second adsorbent bed fluidly connected to the input of the condenser;the output of the condenser fluidly connected to an input of a second reservoir;an output of the second reservoir fluidly connected to a second expansion valve;the second expansion valve fluidly connected to the input of the evaporator; andthe output of the evaporator fluidly connected to an input of the second adsorbent bed.16. The climate control system of claim 14 , wherein the first adsorbent bed configured to become operational upon opening the first thermal expansion valve claim 14 , thereby allowing a fluid to pass through the evaporator before entering the first adsorbent bed.17. The climate control system of claim 16 , wherein the system is configured to allow to the fluid to pass from the first adsorbent bed through the condenser and the first reservoir before returning to the first expansion valve.18. The climate control system of claim 15 , wherein the second adsorbent bed is configured to become operational upon opening the second thermal expansion valve claim 15 , thereby allowing the fluid to pass through the evaporator before entering the second adsorbent bed.19. The climate control system of claim 18 , wherein the system is configured to allow fluid to pass from the second adsorbent bed through the condenser and the second ...

A METHOD FOR THE SEPARATION OF C4 OLEFIN MIXTURES

A method for the separation of C4 olefin mixtures using anion-pillared hybrid porous materials as physical adsorbents is provided. The anion-pillared hybrid porous material was constructed by metal ions (M), organic ligand (L), and inorganic anion (A), forming a three-dimensional structure (A-L-M). C4 olefin mixtures contact with hybrid porous materials in certain ways, then each single C4 olefin monomer can be obtained. The pore size of anion-pillared hybrid porous materials and the spatial configurations of the anions within the pores can be fine-tuned and pre-designed. C4 olefins with different size and shape can be efficiently separated by the anion-pillared hybrid porous materials through shape recognition and size-sieving mechanism. 2. The method of separating C4 olefins according to claim 1 , wherein the first kind of organic ligand L1is any of Adenine claim 1 , 2-Amino-6-chloropurine claim 1 , and Guanine.3. The method of separating C4 olefins according to claim 1 , wherein the third kind of organic ligand L3 is any of 4 claim 1 ,4′-bipyridylacetylene claim 1 , 4 claim 1 ,4′-azopyridine claim 1 , 3-hydro-4 claim 1 ,4′-bipyridylacetylene claim 1 , 2-floro-4 claim 1 ,4′-bipyridylacetylene.4. The method of separating C4 olefins according to claim 1 , wherein the organic ligand L1 is Adenine claim 1 , the resulted hybrid porous materials A-L1-M can separate 1-butene and 1 claim 1 ,3-butadiene mixtures with polymer-grade of iso-butene and high purity 1 claim 1 ,3-butadiene obtained; or can separate the mixtures of 1 claim 1 ,3-butadiene claim 1 , 1-butene claim 1 , trans-2-butene claim 1 , iso-butene and cis-2-butene; or can separate 1 claim 1 ,3-butadiene and iso-butene mixtures with polymer-grade of iso-butene obtained; or can separate 1-butene and iso-butene mixtures with polymer-grade of iso-butene obtained; or can separate trans-2-butene and cis-2-butene mixtures with polymer-grade of cis-2-butene and high purity trans-butene obtained.5. The method of ...

Reduced graphene oxide-based-composites for the purification of water

A nanocomposite is disclosed comprising reduced graphene oxide (RGO) and at least one of a metal and an oxide of the metal. Also disclosed is an adsorbent comprising the nanocomposite and an adsorbent comprising the nanocomposite bound to silica by using chitosan. A filtering device comprising the nanocomposite and/or the adsorbent is also disclosed. Also disclosed are methods for producing the nanocomposites, adsorbents, and filtering devices described herein.

ADSORBENT FOR HYDROCARBON RECOVERY

Disclosed in certain embodiments are sorbents for capturing heavy hydrocarbons via thermal swing adsorption processes. 1. A thermal swing adsorption system comprising a bed of adsorbent particles , the adsorbent particles comprising amorphous SiOparticles , wherein a relative micropore surface area (RMA) of the amorphous SiOparticles is greater than 10%.2. The thermal swing adsorption system of claim 1 , wherein a total pore volume of the amorphous SiOparticles for pores between 500 nm and 20000 nm in diameter is greater than 70 mm/g.3. The thermal swing adsorption system of claim 1 , wherein a Brunauer-Emmett-Teller (BET) surface area of the amorphous SiOparticles is greater than 500 m/g.4. The thermal swing adsorption system of claim 1 , wherein a bulk density of the amorphous SiOparticles is less than 600 kg/m.5. The thermal swing adsorption system of claim 1 , wherein a size of the amorphous SiOparticles is from 2.4 mm to 4 mm.6. The thermal swing adsorption system of claim 1 , wherein the adsorbent particles further comprise AlOparticles.7. The thermal swing adsorption system of claim 6 , wherein the amorphous SiOparticles are present at a weight % of greater than 80% claim 6 , and wherein the AlOparticles are present at a weight % of up to 20% claim 6 , wherein the weight % is calculated with respect to a total weight of the bed of adsorbent particles.8. A method of removing C5+ or C6+ components from a fluid volume claim 6 , the method comprising:{'sub': 2', '2, 'contacting the fluid volume with a bed of adsorbent particles, the adsorbent particles comprising amorphous SiOparticles, wherein a relative micropore surface area (RMA) of the amorphous SiOparticles is greater than 10%.'}9. The method of claim 8 , wherein a total pore volume of the amorphous SiOparticles for pores between 500 nm and 20000 nm in diameter is greater than 70 mm/g.10. The method of claim 8 , wherein a Brunauer-Emmett-Teller (BET) surface area of the amorphous SiOparticles is greater ...

Processes for recovering lithium values from lithium-containing brines

Producing high purity lithium solution from a lithium source containing dissolved Na+, Ca2+, and Mg2+, by: passing the source into and out of a bed of sorbent composed of hydrated alumina intercalated with LiX, preferably LiCl, to extract lithium from the lithium source into the sorbent; washing the bed of sorbent with dilute aqueous LiCl to remove lithium from the sorbent to obtain a lithium eluent of increased Li+ concentration; subjecting this eluent to nanofiltration to produce a lithium permeate from which Ca2+, Mg2+, and other nanofilterable components are concurrently removed, yielding a permeate solution with 25% or less, and a retentate solution with 75% or more Ca2+ and Mg2+, as compared to the eluent from washing; and subjecting the permeate solution to a particular forward osmosis yielding a solution having 13,000-25,000 ppm dissolved lithium. Specified optional steps and new features can be used to increase lithium concentrations and purity.

METHOD FOR SOLVENT RECOVERY AND ACTIVATED CARBON REGENERATION

An activated carbon device for adsorbing solvent from a flow of air is regenerated by feeding heated inert gas to the activated carbon and by applying a reduced pressure to the heated activated carbon. 1101. A method of regenerating activated carbon in a solvent adsorbing device () , said carbon containing a solvent that was adsorbed on said activated carbon in solvent adsorbing step in which a flow of air that contains solvent is passed through said carbon , said method comprising the steps of:i) heating said activated carbon, said heating being carried out at least in part by a flow of heated inert gas;ii) applying a reduced pressure Pred to the heated carbon in said device to remove at least part of said solvent from said activated carbon;iii) recovering the solvent;wherein during said heating step i),{'b': 107', '1', '102', '2', '1', '2, 'a.—said heated inert gas is circulated from said activated carbon to at least one heat exchanger () to increase the gas temperature to temperature T and from said heat exchanger to said activated carbon () to increase the temperature of the carbon, at least some of said activated carbon having temperature T, wherein T>T,'}{'b': '2', 'b.—the temperature T of at least part of said activated carbon is lower than the boiling point of said solvent at the pressure P present in said activated carbon adsorbing device, whereby no solvent is recovered in step i).'}2102102102. The method of claim 1 , wherein in said step of solvent adsorption claim 1 , said solvent-containing air is passed through a bed () of said activated carbon along a first direction claim 1 , from a first side (A) to a second side (B) of said bed () claim 1 , and wherein in said heating step said heated inert gas is passed through said carbon () along a second direction from said second side (B) to said first side (A) claim 1 , said second direction being opposite to said first direction.3. The method of claim 2 , wherein at least during said heating step i) the ...

Synthetic silica as packing material in supported liquid extraction

In embodiments, a packing material for supported liquid extraction has a sorbent media that includes synthetic silica particles. In embodiments, the synthetic silica particles can have physical properties relating to one or more of particle surface area, shape, size, or porosity. In one embodiment, synthetic silica particles have a surface area less than about 30 m 2 /g. In another embodiment, the synthetic silica particles have an approximately uniform particle shape. In further examples, synthetic silica particles have a particle size in a range of about 30-150 μm inclusive or greater than about 200 μm. In another embodiment, synthetic silica particles are arranged to have a pore size greater than about 500 Angstroms. In an embodiment, an apparatus for supported liquid extraction includes a container and a sorbent media that includes synthetic silica particles. In a further embodiment, a method for extracting target analytes through supported liquid extraction is provided.

Porous nanocomposite polymer hydrogels for water treatment

Synthesis, fabrication, and application of nanocomposite polymers in different form (as membrane/filter coatings, as beads, or as porous sponges) for the removal of microorganisms, heavy metals, organic, and inorganic chemicals from different contaminated water sources.

CHROMATOGRAPHY COLUMN WITH LOCKED PACKED BED AND METHOD OF PACKING THAT COLUMN

A chromatography column has a retaining plug permanently fixed to an upstream end of the column and blocks one end of the bore through the column. The plug has a fluid passage therethrough. An upstream end of the passage is preferably but optionally larger in diameter than a downstream end of the passage. An upstream porous member upstream of the retaining plug is held by an upstream end cap and urged toward the plug. Chromatographic media extends from the upstream porous member, through the passage in the retaining plug, to a downstream porous member held by a downstream end cap. The media between the retaining plug and the downstream porous member are under compression to form a bed of packed media.

Synthetic Silica as Packing Material in Supported Liquid Extraction

In embodiments, a packing material for supported liquid extraction has a sorbent media that includes synthetic silica particles. In embodiments, the synthetic silica particles can have physical properties relating to one or more of particle surface area, shape, size, or porosity. In one embodiment, synthetic silica particles have a surface area less than about 30 m/g. In another embodiment, the synthetic silica particles have an approximately uniform particle shape. In further examples, synthetic silica particles have a particle size in a range of about 30-150 μm inclusive or greater than about 200 μm. In another embodiment, synthetic silica particles are arranged to have a pore size greater than about 500 Angstroms. In an embodiment, an apparatus for supported liquid extraction includes a container and a sorbent media that includes synthetic silica particles. In a further embodiment, a method for extracting target analytes through supported liquid extraction is provided. 1. A packing material for supported liquid extraction , comprising:{'sup': '2', 'a sorbent media that includes synthetic silica particles having a surface area less than about 30 m/g.'}2. The packing material of claim 1 , wherein the synthetic silica particles have an approximately uniform particle shape.3. The packing material of claim 2 , wherein the approximately uniform particle shape comprises at least one of an approximately rounded shape claim 2 , or an approximately spherical shape having an approximately uniform diameter across a distribution of the particles.4. The packing material of claim 1 , wherein the synthetic silica particles have a particle size in a range of about 30-150 μm inclusive.5. The packing material of claim 1 , wherein the synthetic silica particles have a particle size greater than about 200 μm.6. The packing material of claim 1 , wherein the synthetic silica particles are arranged to have a pore size greater than about 500 Angstroms.7. An apparatus for supported liquid ...

EMISSIONS CONTROL SYSTEM WITH CZTS SORBENTS, CZTS-BASED ALLOY SORBENTS, AND/OR CARBON-BASED SORBENTS AND METHOD OF USE

An emissions control system including a fluidized bed apparatus containing a reactive sorbent material is disclosed for gaseous and non-gaseous contaminated emissions. The reactive sorbent material may be CZTS, CZTS-Alloy, or a carbon-based sorbent material. The fluidized bed apparatus is configured with one or more closed loop sorbent recycling subsystems. The sorbent recycling subsystems include the capability to separate sorbents from each other, separate contaminates from sorbents for disposal and/or recycling, clean and/or rejuvenate sorbents for return to the fluidized bed apparatus, dispose of spent and exhausted sorbents, and replace the spent and exhausted sorbents with new sorbent to maintain consistent sorbent function in the fluidized bed apparatus. Monitoring sensors provide information useful in a method for establishing and maintaining consistent process parameter controls. 1. An emissions control system including a fluidized bed apparatus for removing contaminants from emissions , comprising:a housing shaped as a reverse venturi, said housing including an entry portion for receiving the emissions at a pre-determined entry flow rate, an exit portion for expelling the emissions at a pre-determined exit flow rate, and an enlarged portion disposed between said entry portion and said exit portion of said housing for trapping the contaminants in the emissions;said entry portion, said exit portion, and said enlarged portion of said housing being arranged in fluid communication with each other;a mass of reactive material disposed within said enlarged portion of said housing;said mass of reactive material having a reactive outer surface disposed in contact with the emissions;said mass of reactive material including at least one sorbent; andat least one sorbent recycling subsystem disposed in fluid communication with said housing that receives sorbent from said housing via a sorbent discharge port and returns clean sorbent to said housing via a sorbent return ...

Preservative removal from eye drops

A particulate plug for removing a preservative from a solution, suspension, or emulsion comprising a drug is presented. The plug comprises microparticles of oxidized polyolefin (OxPO). The microparticles are irregular-shaped rigid aggregates and are sized and packed to yield a hydraulic permeability greater than 0.01 Da. The OxPO have absorbed portions of a preservative to be removed and/or a drug for delivery in solution, as can the copolymer.

Separation of hydrocarbons using regenerable macroporous alkylene-bridged adsorbent

A method for separating natural gas liquids (NGLs) from a hydrocarbon gas mixture containing natural gas liquids and methane, comprising the steps of: i) providing a bed of adsorbent selective for NGLs over methane; ii) passing a hydrocarbon gas mixture containing methane and NGL through the bed of adsorbent to at least partially remove NGLs from the gas mixture to produce: (a) NGL-loaded adsorbent and (b) NGL-depleted hydrocarbon gas mixture; iii) recovering the NGL-depleted hydrocarbon gas mixture; iv) regenerating the NGL-loaded adsorbent by at least partially removing NGLs from the adsorbent; and v) sequentially repeating steps (ii) and (iii) using regenerated adsorbent from step (iv).

Regeneration of purification beds with a jet compressor in an open loop cycle

Methods and systems for regenerating a purification bed take advantage of inert gas pressure, such as, for example, supplied by a pipeline. The inert gas (102) is provided at a first pressure and combined with a recycle composition (116) from the vessel (110, 110a) containing the material being regenerated. These streams form a regeneration fluid composition (114) at a second pressure less than the inert gas pressure, which is then routed to the vessel to regenerate the purification bed. A jet compressor (108) may be used for the combining of the inert gas and recycle streams. The recycled composition allows reduction in inert gas usage, while a portion is flared or otherwise disposed of.

Composite adsorbent bead, process for its production, gas separation process and gas adsorption bed

Composite adsorbent beads have a porous and non-adsorbent core comprising at least one inorganic material and a porous and adsorbent shell comprising at least one adsorbent layer comprising a porous adsorbent material on the surface of the core. The core preferably comprises agglomerated inorganic particles having a mean particle size equal to or smaller than the mean particle size of the surrounding agglomerated adsorbent particles. The beads preferably are manufactured by calcining together a non-sintered core and the adsorbent layer. The beads can be used at the outlet end of an adsorption column to improve performance.

Processes for Making Adsorbents and Processes for Removing Contaminants from Fluids Using Them

The present invention provides carbon-containing adsorbent materials as well as processes for making them and processes for using them to remove contaminants from fluids. One embodiment of the invention is a process for removing a contaminant from a fluid, the process comprising: (a) providing an activated carbon material made using a process comprising (1) providing a particulate petroleum coke feedstock; (2) reacting the petroleum coke feedstock in a gasifying reactor in the presence of steam and an alkali metal gasification catalyst under suitable temperature and pressure to form a plurality of gaseous products comprising methane and at least one or more of hydrogen, carbon monoxide, carbon dioxide, hydrogen sulfide, ammonia and other higher hydrocarbons, and a petroleum coke char residue comprising an alkali metal gasification catalyst residue; and (3) substantially extracting the alkali metal gasification catalyst residue from the petroleum coke char residue to form the carbon-containing adsorbent material; and (b) contacting the fluid with the carbon-containing adsorbent material to form a contaminated carbon-containing adsorbent material and a purified fluid.

Filters comprising an activated carbon particle coated with pdadmac and methods of making same

Embodiments of systems and methods for producing a coated activated carbon comprise the steps of providing activated carbon particles having a particle size up to about 100 μm, and coating the activated carbon particles by spraying droplets of a cationic polymer solution onto the surface of the activated carbon particles, wherein the cationic polymer solution comprises about 1% to about 15% by weight cationic polymer and the droplet size is between about 5 μm to about 100 μm.

Verfahren zur regeneration von aktivkohle

Regeneration of purification beds with a jet compressor in an open loop cycle

METHODS AND SYSTEMS FOR REGENERATING A PURIFICATION BED TAKE ADVANTAGE OF INERT GAS PRESSURE, SUCH AS, FOR EXAMPLE, SUPPLIED BY A PIPELINE. THE INERT GAS (102) IS PROVIDED AT A FIRST PRESSURE AND COMBINED WITH A RECYCLE COMPOSITION (116) FROM THE VESSEL (110,110A) CONTAINING THE MATERIAL BEING REGENERATED. THESE STREAMS FORM A REGENERATION FLUID COMPOSITION (114) AT A SECOND PRESSURE LESS THAN THE INERT GAS PRESSURE, WHICH IS THEN ROUTED TO THE VESSEL TO REGENERATE THE PURIFICATION BED. A JET COMPRESSOR (108) MAY BE USED FOR THE COMBINING OF THE INERT GAS AND RECYCLE STREAMS. THE RECYCLED COMPOSITION ALLOWS REDUCTION IN INERT GAS USAGE, WHILE A PORTION IS FLARED OR OTHERWISE DISPOSED OF.

Preservative removal from eye drops

A particulate plug for removing a preservative from a solution, suspension, or emulsion comprising a drug is presented. The plug comprises microparticles of oxidized polyolefin (OxPO). The microparticles are irregular-shaped rigid aggregates and are sized and packed to yield a hydraulic permeability greater than 0.01 Da. The OxPO have absorbed portions of a preservative to be removed and/or a drug for delivery in solution, as can the copolymer.

Preservative removal from eye drops

A particulate plug for removing a preservative from a solution, suspension, or emulsion comprising a drug is presented. The plug comprises microparticles of a hydrophobic polymer/fatty acid blend. The microparticles of hydrophobic polymer/fatty acid blend selectively absorb preservative allowing the drug to remain in solution for delivery.

Silane-modified clay

Clay particles with organo silane-modified surfaces are provided along with a process for their preparation. The silane-modified clay is relatively easily and reliably produced by reacting clay with a R-substituted halosilane (R being a hydrophobic group) in a polar solvent containing a tertiary amine. The produced silanized clay is stable over a wide range of storage and use conditions. Contacting processes for using the silane-modified clay to remove organic contaminants from aqueous media are also provided. After use, the silane-modified clay particles can be regenerated, treated and reused for such contaminant removal.

Regeneration of purification beds with a jet compressor in an open loop cycle

Adsorbent bed support

An adsorbent vessel (104) and process for using the adsorbent vessel (104) subject to thermal swing expansion / contraction is disclosed where the adsorbent vessel (104) comprises a support screen (102) affixed to the adsorption vessel (104) subject to thermal swing expansion / contraction and where a first section of the support screen extends along a portion of the length of the adsorption vessel subject to thermal swing expansion / contraction in the axial direction and comprises apertures permitting gas permeation and where the first section of the support screen has a cross - section in the axial direction that is arcuate.

Regeneration of purification beds with a jet compressor in an open loop cycle

Methods and systems for regenerating a purification bed take advantage of inert gas pressure, such as, for example, supplied by a pipeline. The inert gas ( 102 ) is provided at a first pressure and combined with a recycle composition ( 116 ) from the vessel ( 110, 110 a ) containing the material being regenerated. These streams form a regeneration fluid composition ( 114 ) at a second pressure less than the inert gas pressure, which is then routed to the vessel to regenerate the purification bed. A jet compressor ( 108 ) may be used for the combining of the inert gas and recycle streams. The recycled composition allows reduction in inert gas usage, while a portion is flared or otherwise disposed of.

regeneração de leitos de purificação com um compressor a jato em um ciclo de laço aberto

Regeneration of purifying layers by means of jet compressor in open contour

FIELD: chemistry. SUBSTANCE: invention relates to method of regeneration of purifying layer, located on vessel, which is applied in processes of olefin polymerisation, as well as to system of regeneration of purifying layer, which is located in vessel when said process is performed. Method applied cycle with open contour. Recirculation of part of medium, discharged from vessel, as composition subjected to recirculation, is realised. The remaining part is removed into atmosphere. Method includes the following stages: a) supply of inert gas, which is under first pressure P1; b) combining inert gas with subjected to recirculation composition, discharged from vessel, with obtaining regenerating composition, which is under second pressure P2; c) supply of regenerating composition into vessel in order to regenerate purifying layer. Subjected to recirculation composition is under third pressure P3 in such a way that P1>P2>P3. EFFECT: elaboration of method and system of regeneration of purifying layer in one passage, which makes it possible to reduce inert gas consumption. 22 cl, 9 dwg, 1 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК C08F 2/00 C08F 10/00 C08F 110/00 B01D 53/04 B01J 20/34 C07C 7/00 (13) 2 527 452 C2 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011147501/04, 15.04.2010 (24) Дата начала отсчета срока действия патента: 15.04.2010 (72) Автор(ы): Рандалл Л. ФОРС (US), Рашель Л. ЛЕ-ГЕЙ (US) 24.04.2009 US 61/172,442 (43) Дата публикации заявки: 27.05.2013 Бюл. № 15 R U (73) Патентообладатель(и): ЮНИВЕЙШН ТЕКНОЛОДЖИЗ, ЛЛК (US) Приоритет(ы): (30) Конвенционный приоритет: (45) Опубликовано: 27.08.2014 Бюл. № 24 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.11.2011 C 2 C 2 A 20.11.1990. EP 0586244 A1 09.03.1994. DE 2631225 A1 26.01.1978. Henzler H J: "Continuous mixing of Fluids" Ullmann`s Encyclopedia of Industrial ...

Regeneration of purification beds with a jet compressor in an open loop cycle

Methods and systems for regenerating a purification bed take advantage of inert gas pressure, such as, for example, supplied by a pipeline. The inert gas (102) is provided at a first pressure and combined with a recycle composition (116) from the vessel (110, 110a) containing the material being regenerated. These streams form a regeneration fluid composition (114) at a second pressure less than the inert gas pressure, which is then routed to the vessel to regenerate the purification bed. A jet compressor (108) may be used for the combining of the inert gas and recycle streams. The recycled composition allows reduction in inert gas usage, while a portion is flared or otherwise disposed of.

在开路循环中用喷气压缩机使净化床再生

本发明提供了一种利用惰性气体(例如通过管线供应)的压力使净化床再生的方法和系统。惰性气体(102)以第一压力供应，并与来自容器(110，110a)的循环组合物(116)组合，所述容器(110，110a)含有要再生的材料。这些物料流在小于惰性气体压力的第二压力下形成再生流体组合物(114)，然后其进入容器中使净化床再生。喷气压缩机(108)可用于使惰性气体和循环流组合。循环回收的组合物使得惰性气体的使用量降低，同时一部分被燃烧或以其他方法处理。

FILTERS COMPRISING ACTIVATED CARBON PARTICLES COATED WITH POLYDIALLYDIMETHYLAMMONIUM CHLORIDE (pDADMAC) AND METHODS FOR PRODUCTION THEREOF

FIELD: chemistry. SUBSTANCE: invention relates to water filters containing activated carbon with a polymer coating and methods for production thereof. A method of producing coated activated carbon includes producing activated carbon particles having an average particle size of up to 100 mcm and coating the activated carbon particles by spraying droplets of a cationic polymer solution onto the surface of the activated carbon particles, wherein the cationic polymer solution includes about 2 wt % to about 4 wt % of the cationic polymer and the droplet size is between about 15 mcm to about 55 mcm, wherein the cationic polymer contains polydiallydimethylammonium chloride (pDADMAC), having the weight-average molecular weight (Mw) of up to about 200000 g/mol and the number-average molecular weight (Mn) of up to about 100000 g/mol. EFFECT: invention enables to obtain filters with the improved capability of removing impurities. 16 cl, 5 dwg, 2 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B01J 20/20 B01J 20/26 B01J 20/32 C02F 1/28 B01D 39/14 (13) 2 572 884 C2 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012129514/05, 09.12.2010 (24) Дата начала отсчета срока действия патента: 09.12.2010 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.01.2014 Бюл. № 3 (45) Опубликовано: 20.01.2016 Бюл. № 2 (73) Патентообладатель(и): ПУР ВОТЕР ПЬЮРИФИКЕЙШН ПРОДАКТС, ИНК. (US) (85) Дата начала рассмотрения заявки PCT на национальной фазе: 16.07.2012 (86) Заявка PCT: 2 5 7 2 8 8 4 (56) Список документов, цитированных в отчете о поиске: WO 2006/110632 A2, 19.10.2006. RU 2356599 C2, 27.05.2009. US 7537695 B2, 26.05.2019. US 6783713 B2, 31.08.2004. R U 14.12.2009 US 61/286,180 (72) Автор(ы): ПИРКС Эндрю Томас (US), ОНОНИ Алоизиус Ик (US), МИТЧЕЛЛ Майкл Донован (US), КОЛЛИАС Димитрис Иоаннис (US), БЪЙОРКВИСТ Дэвид Уильям (US), БИРС Питер Уильям (US) 2 5 7 2 8 8 ...

Адсорбирующая масса и способ удаления ионооксида углерода из материальных потоков

1. Адсорбирующая масса, содержащая оксиды меди, цинка и циркония, отличающаяся тем, что степень восстановления ее содержащего медь компонента, выраженная в виде массового отношения металлической меди к сумме металлической меди и принятых за CuO оксидов меди, составляет по меньшей мере 90% и максимум 97%. ! 2. Адсорбирующая масса по п.1 с содержанием меди от 30 до 99,8 мас.% в расчете на CuO, цинка от 0,1 до 69,9 мас.% в расчете на ZnO и циркония от 0,1 до 69,9 мас.% в расчете на ZrO2, соответственно в пересчете на ее общее количество. ! 3. Адсорбирующая масса по п.2, в основном состоящая из меди в количестве от 30 до 99,8 мас.% в расчете на CuO, цинка в количестве от 0,1 до 69,9 мас.% в расчете на ZnO и циркония в количестве от 0,1 до 69,9 мас.% в расчете на ZrO2, соответственно в пересчете на ее общее количество, причем сумма указанных компонентов составляет 100 мас.%. ! 4. Адсорбирующая масса по одному из пп.1-3 на инертном носителе. ! 5. Адсорбирующая масса по одному из пп.1-3, отличающаяся тем, что цинк находится в виде оксида цинка, а цирконий в виде диоксида циркония. ! 6. Способ удаления монооксида углерода из содержащих его материальных потоков адсорбцией на адсорбирующей массе, отличающийся тем, что реализуют контакт содержащего монооксид углерода материального потока с адсорбирующей массой по пп.1-5. ! 7. Способ по п.6, отличающийся тем, что монооксид углерода удаляют из жидкого потока пропилена. ! 8. Способ удаления монооксида углерода из материальных потоков, содержащих монооксид углерода и кислород, каталитическим взаимодействием монооксида углерода с кислородом, сопровождаемым образованием диоксида углерода, отличающийся тем, что в качестве катализатора используют ад РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2008 136 690 (13) A (51) МПК B01J 20/06 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21), (22) Заявка: 2008136690/15, 07.02.2007 (71) Заявитель(и): БАСФ СЕ (DE) (30) Конвенционный ...

Olefin purification by adsorption of acetylenics and regeneration of adsorbent

탄소수 2 내지 8의 올레핀, 탄소 함량이 동일하거나 유사한 아세틸렌계 불순물 및 임의로 포화 탄화수소 가스를 포함하는 스트림을 하나 이상의 금속 원소가 분산되어 있는 표면적이 큰 지지재를 주로 포함하는 흡착제의 미립자 층을 통하여 통과시키는, 적절한 탄화수소 공급 원액의 열분해에 의해 통상적으로 생성되는 올레핀을 정제하기 위해 불균질한 흡착제를 사용하는 공정이 기재되어 있다. 함유되어 있는 아세틸렌계 불순물을, 흡착제의 미립자 층 속에서, 필수적으로 이수소를 함유하지 않는 대기하에, 흡착제로 선택적 및 가역적으로 흡착시키고/시키거나 착화시켜 흡착시키고, 이로써 아세틸렌계 불순물을 소정 수준 미만으로 함유하는 정제된 유출물을 수득한다. 함유되어 있는 아세틸렌계 불순물을 흡착제로 선택적 및 가역적으로 흡착시키고/시키거나 착화시키는 것은, 유출물 스트림 속에서의 아세틸렌계 불순물의 수준의 감소가 소정의 수준으로 증대될 때까지 계속된다. 이어서, 아세틸렌계 불순물이 함유된 흡착제 층을 이수소 함유 환원 가스의 존재하에 재생하여, 함유되어 있는 아세틸렌계 불순물을 흡착제로부터 배출시킨다. Passing a stream comprising olefins of 2 to 8 carbon atoms, acetylene based impurities having the same or similar carbon content and optionally saturated hydrocarbon gas, through the particulate layer of the adsorbent, which mainly comprises a large surface area support in which one or more metal elements are dispersed A process using a heterogeneous adsorbent is described to purify olefins that are typically produced by pyrolysis of a suitable hydrocarbon feed stock. The contained acetylene impurities are adsorbed selectively and reversibly and / or complexed with an adsorbent in the particulate layer of the adsorbent, essentially in the absence of dihydrogen, thereby adsorbing the acetylene impurities below a predetermined level. To obtain a purified effluent containing. Selective and reversible adsorption and / or complexation of the contained acetylene impurities with the adsorbent continues until the reduction in the level of acetylene impurities in the effluent stream increases to a predetermined level. Subsequently, the adsorbent layer containing the acetylene impurities is regenerated in the presence of dihydrogen-containing reducing gas to discharge the contained acetylene impurities from the adsorbent.

旋光异构体分离用填充剂的制造方法

本发明提供一种可在多孔载体上均匀负载多糖衍生物的制造方法。即，在搅拌装置内，通过搅拌操作，使多孔载体与多糖衍生物溶液接触，在多孔载体上负载光学活性高分子化合物的制造方法，其使用立式双轴搅拌装置作为搅拌装置，使多孔载体上负载多糖衍生物的负载量为23质量%或23质量%以上的旋光异构体分离用填充剂的制造方法。

Adsorbent, method for production thereof and method of removing sulphur from cracked petrol or diesel fuel

FIELD: chemistry. SUBSTANCE: group of inventions relates to adsorbents for removing sulphur from cracked petrol or diesel fuel. The adsorbent contains 10 wt % to about 25 wt % aluminium oxide, 10-20 wt % silicon dioxide, 35-65 wt % metal oxide selected from groups IIB and VB, 8-20 wt % metal catalyst selected from groups VIIB and VIII, 1-5 wt % metal oxide selected from group IA. The group IA metal oxide is uniformly distributed in the entire volume of the adsorbent. The method of production involves preparing a moulding mixture from an acidic suspension containing an adsorbent precursor, moulding, drying and calcining to obtain a support. A precursor compound of the metal catalyst is then added to the support and reduced in a hydrogen-containing atmosphere. Sulphur is removed from the obtained adsorbent at 350-500°C. EFFECT: obtaining an adsorbent with high wear-resistance and high activity with respect to sulphur extraction. 19 cl, 1 dwg, 11 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 517 639 C2 (51) МПК B01J 20/10 (2006.01) B01J 20/30 (2006.01) C10G 25/09 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011131329/05, 30.12.2009 (24) Дата начала отсчета срока действия патента: 30.12.2009 Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 10.02.2013 Бюл. № 4 (73) Патентообладатель(и): ЧАЙНА ПЕТРОЛЕУМ & КЕМИКАЛ КОРПОРЕЙШН (CN), РЕСЕРЧ ИНСТИТЬЮТ ОФ ПЕТРОЛЕУМ ПРОЦЕССИНГ, СИНОПЕК (CN) (56) Список документов, цитированных в отчете о поиске: US 6271173 B1, 07.08.2001; . RU (85) Дата начала рассмотрения заявки PCT на национальной фазе: 01.08.2011 C 2 C 2 2309795 C2, 10.11.2007. RU 2007108545 А, 20.09.2008. RU 22300608 C2, 20.06.2004. US 6803343 B2, 12.10.2004; . US 6683024 B1, 27.01.2004; . US 6930074 B2, 16.08.2005; . US 7105140 B2, 12.09.2006 (86) Заявка PCT: CN 2009/001592 (30.12.2009) 2 5 1 7 6 3 9 (87) Публикация заявки PCT: R U 2 5 1 7 6 3 9 (45) Опубликовано: 27.05.2014 Бюл. № ...

Method of separating straight hydrocarbons from branched isomers thereof

FIELD: chemistry. SUBSTANCE: present invention relates to a method of separating at least one straight C 4 -C 20 hydrocarbon from a fluid mixture containing said straight hydrocarbon and at least one branched isomer thereof. The method involves a step of bringing the fluid mixture into contact with an adsorbent which contains a porous organometallic skeletal material containing at least one at least bidentate organic compound, having a coordination bond with at least one metal ion for adsorption of the straight hydrocarbon, where the at least one at least bidentate organic compound is a monocyclic, bicyclic or polycyclic ring system and is unsubstituted or has one or more substitutes, independently selected from a group consisting of a halogen atom, C 1-6 -alkyl, phenyl, NH 2 , NH(C 1-6 -alkyl), N(C 1-6 -alkyl) 2 , OH, O-phenyl and OC 1-6 -alkyl, where the substitutes C 1-6 -alkyl and phenyl are unsubstituted or have one or more substitutes, independently selected from a group consisting of a halogen atom, NH 2 , NH(C 1-6 -alkyl), N(C 1-6 -alkyl) 2 , OH, O-phenyl and OC 1-6 -alkyl, wherein the ring system of the at least one at least bidentate organic compound is a substituted imidazole, and where said at least one metal ion is an ion of a metal selected from a group consisting of Zn, Cu, Co, Ni, Fe and Mn. The invention also relates to use of said porous organometallic skeletal material in the method of separating straight hydrocarbons from branched isomers thereof. EFFECT: present invention provides an alternative, easily to make absorbent. 9 cl, 4 ex, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 478 602 (13) C2 (51) МПК C07C C07C C07C C07C C07C 7/135 7/12 9/10 9/14 9/22 (2006.01) (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2010104103/04, 30.06.2008 (24) Дата начала отсчета срока действия патента: 30.06.2008 C 2 C 2 (56) Список документов, цитированных в отчете о ...

Solid adsorbent for unsaturated hydrocarbon and process for separation of unsaturated hydrocarbon from gas mixture

A solid adsorbent for an unsaturated hydrocarbon com­ prising (a) (i) a silver or copper(I) halide or (ii) a silver or copper(I) halide and the halide of a bivalent metal, or (iii) a silver or copper(I) halide and an aluminum halide, and (b) polystyrene or a derivative thereof. This solid adsorbent can effectively adsorb an unsaturated hydrocarbon such as ethylene from a gas mixture by contact­ ing the gas mixture therewith at a temperature of -40°C to 140°C under normal pressures.

Process for the regeneration of a solid adsorbent

A process for regenerating an adsorbent bed which has been deactivated by, for example, dehydration of a hydrocarbon comprises contacting said adsorbent with a liquid hydrocarbon diluent inert to said hydrocarbon to remove residual amounts of said hydrocarbon, contacting said adsorbent with said diluent in a superheated and vaporized state, and thereafter contacting said adsorbent with said diluent in the liquid state to cool said adsorbent. The diluent may itself be dried by an adsorbent bed subsequently regenerated by the aforementioned process, and the hydrocarbon to be dried and the regenerating diluent may therefore be the same. Prior to contacting the adsorbent bed with superheated diluent vapour, residual diluent in the bed may be removed by purging with nitrogen. The hydrocarbon to be dried may be a conjugated diene subsequently polymerized in the presence of said liquid diluent. Diluents specified are paraffins, cycloparaffins, aromatics, or any mixtures thereof, in particular propane, butane, iso-octane, cyclohexane, methyl-cyclohexane, benzene and toluene. Adsorbents specified are bauxite, activated alumina and silica gel. The adsorbent is preferably contacted with the diluent vapour at 250 DEG to 600 DEG F., and subsequently cooled to 32 DEG to 150 DEG F. An example relates to the dehydration of 1,3 butadiene in an alumina bed regenerated using a toluene as the diluent.

Adsorbents for removing heavy metals and methods for producing and using the same

A method for making adsorbents for removing anions of a heavy metals is provided. In an example the method includes impregnating an adsorbent material with a solution comprising at least one compound of at least one metal selected from the group consisting of iron (II), aluminum, titanium, zirconium, and combinations thereof; and converting the compound into an oxygen-containing compound of said metal to produce said adsorbent capable of interacting with anions of the heavy metal. Such adsorbents are particularly useful for removing arsenic and/or selenium from the environment and may be used in treating drinking water sources.

Pressure-temperature swing adsorption process for the separation of heavy hydrocarbons from natural gas streams

The present invention relates to a pressure-temperature swing adsorption process wherein gaseous components that have been adsorbed can be recovered from the adsorbent bed at elevated pressures. In particular, the present invention relates to a pressure-temperature swing adsorption process for the separation of C 2+ hydrocarbons (hydrocarbons with at least 2 carbon atoms) from natural gas streams to obtain a high purity methane product stream. In more preferred embodiments of the present processes, the processes may be used to obtain multiple, high purity hydrocarbon product streams from natural gas stream feeds resulting in a chromatographic-like fractionation with recovery of high purity individual gaseous component streams.

Pressure-temperature swing adsorption process

A pressure-temperature swing adsorption process for the removal of a target species, such as an acid gas, from a gas mixture, such as a natural gas stream. Herein, a novel multi-step temperature swing/pressure swing adsorption is utilized to operate while maintaining very high purity levels of contaminant removal from a product stream. The present process is particularly effective and beneficial in removing contaminants such as CO 2 and/or H 2 S from a natural gas at high adsorption pressures (e.g., at least 500 psig) to create product streams of very high purity (i.e., very low contaminant levels).

Selective sulfur removal process

A cyclic process for selectively separating hydrogen sulfide from a gas mixture including CO 2 is operated by contacting the gas mixture under sorption conditions with a non-aqueous sorbent comprising a basic non-protogenic nitrogenous compound to react the H 2 S with the basic compound so that the H 2 S can be sorbed by the compound. The compound containing the sorbed H 2 S can then be subjected to desorption conditions by which the H 2 S is desorbed and the sorbent readied for another sorption step in the cycle. The basic nitrogenous compound can be carried on a porous solid sorbent, e.g., a solid oxide such as alumina, silica, silica-alumina, zeolites, or a mesoporous and/or macroporous solid oxide. The process may be operated using a pressure swing, temperature swing, partial pressure swing, purge displacement, or a combination thereof between the sorption and desorption portions of the cycle, preferably in a rapid cycle operation.

Swing adsorption processes utilizing controlled adsorption fronts

A process for reducing the loss of valuable products by improving the overall recovery of a contaminant gas component in swing adsorption processes. The present invention utilizes at least two adsorption beds, in series, with separately controlled cycles to control the adsorption front and optionally to maximize the overall capacity of a swing adsorption process and to improve overall recovery a contaminant gas component from a feed gas mixture.

Temperature swing adsorption process for the separation of target species from a gas mixture

A temperature swing adsorption process for the removal of a target species, such as an acid gas, from a gas mixture, such as a natural gas stream. Herein, a novel multi-step temperature swing/pressure swing adsorption is utilized to operate while maintaining very high purity levels of contaminant removal from a product stream. The present process is particularly effective and beneficial in removing contaminants such as CO 2 and/or H 2 S from a natural gas at relatively high adsorption pressures (e.g., at least 500 psig) to create product streams of very high purity (i.e., very low contaminant levels).

Amine modified adsorbent, its preparation and use for dry scrubbing of acid gases

Gas purification process utilizing engineered small particle adsorbents

A gas separation process uses a structured particulate bed of adsorbent coated shapes/particles laid down in the bed in an ordered manner to simulate a monolith by providing longitudinally extensive gas passages by which the gas mixture to be separated can access the adsorbent material along the length of the particles. The particles can be laid down either directly in the bed or in locally structured packages/bundles which themselves are similarly oriented such that the bed particles behave similarly to a monolith but without at least some disadvantages. The adsorbent particles can be formed with a solid, non-porous core with the adsorbent formed as a thin, adherent coating on the exposed exterior surface. Particles may be formed as cylinders/hollow shapes to provide ready access to the adsorbent. The separation may be operated as a kinetic or equilibrium controlled process.

Process for separation of unsaturated hydrocarbon from gas mixture

A solid adsorbent for an unsaturated hydrocarbon comprising (a) (i) a silver or copper(I) halide or (ii) a silver or copper(I) halide and the halide of a bivalent metal, or (iii) a silver or copper(I) halide and an aluminum halide, and (b) polystyrene or a derivative thereof. This solid adsorbent can effectively adsorb an unsaturated hydrocarbon such as ethylene from a gas mixture by contacting the gas mixture therewith at a temperature of -40° C. to 140° C. under normal pressures.

Extractive chromatographic separation process for recovering 3,5-diethyltoluene

This invention comprises a process for separating 3,5-diethyltoluene from a feed mixture comprising 3,5-diethyltoluene and at least one isomer thereof, which process comprises contacting the mixture at adsorption conditions with an adsorbent comprising an X zeolite cation exchange with a K cation, thereby selectively adsorbing the 3,5-diethyltoluene. The remainder of the feed mixture is removed by desorption at desorption conditions with a desorbent material comprising a monocyclic alkyl-substituted aromatic hydrocation, e.g., p- or m-diethylbenzene or p-cymene and optionally, a diluent, e.g., isooctane.

Method and apparatus for gas purification

This invention comprises an adsorption process for the removal of at least N 2 O from a feed gas stream that also contains nitrogen and possibly CO 2 and water. In the process the feed stream is passed over adsorbents to remove impurities such as CO2 and water, then over an additional adsorbent having a high N 2 O/N 2 separation factor. In a preferred mode the invention is an air prepurification process for the removal of impurities from air prior to cryogenic separation of air. An apparatus for operating the process is also disclosed.

Method and apparatus for gas purification

This invention comprises an adsorption process for the removal of at least N 2 O from a feed gas stream that also contains nitrogen and possibly CO 2 and water. In the process the feed stream is passed over adsorbents to remove impurities such as CO2 and water, then over an additional adsorbent having a high N 2 O/N 2 separation factor. In a preferred mode the invention is an air prepurification process for the removal of impurities from air prior to cryogenic separation of air. An apparatus for operating the process is also disclosed.

Sorbent based on cross-linked polymer and carbon for removal of heavy metals, toxic materials and carbon dioxide

FIELD: chemistry. SUBSTANCE: invention considers sorbent based on cross-linked polymer and carbon for removal of carbon dioxide, heavy metals, toxic materials in flue gas in result of combustion process at coal-fired power stations. The sorbent contains a carbon-bearing sorbent, cured amine-containing polymer and sulphur. The sorbents based on polymer and carbon are formed in result of curing of amine-containing polymer in presence of carbonic sorbent, sulphur cross-linking agent, a curing accelerator and a curing activating agent optionally. The suitable carbonic sorbent is activated carbon while the suitable amine-containing polymer is allyl-containing poly(ethelyneimine) with average molecular weight from about 1500 up to 10000. The sorbents based on polymer and carbon may contain sulfur exceeding the quantity required for curing of amine-containing polymer. EFFECT: invention allows capturing more mercury in elementary and ionic forms. 14 cl, 9 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 520 444 C2 (51) МПК B01D 53/02 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012140446/05, 21.02.2011 (24) Дата начала отсчета срока действия патента: 21.02.2011 (72) Автор(ы): МОХАНТИ Диллип (US) (73) Патентообладатель(и): СЕНТРАЛ МИЧИГАН ЮНИВЕРСИТИ (US) Приоритет(ы): (30) Конвенционный приоритет: (43) Дата публикации заявки: 27.03.2014 Бюл. № 9 R U 22.02.2010 US PCT/US2010/000501 (45) Опубликовано: 27.06.2014 Бюл. № 18 A, 04.07.1967. US 4157438 А, 05.06.1979. БОЛЬШАЯ РОССИЙСКАЯ ЭНЦИКЛОПЕДИЯ" Москва 1995" том 4. RU 2064429 C1, 27.07.1996 (86) Заявка PCT: US 2011/025583 (21.02.2011) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.09.2012 (87) Публикация заявки PCT: 2 5 2 0 4 4 4 WO 2011/103529 (25.08.2011) R U 2 5 2 0 4 4 4 (56) Список документов, цитированных в отчете о поиске: US 4305827 A, 15.12.1981. US 3329649 Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ...

多热脉冲变压吸附系统

在变温吸附方法中使用多热脉冲来同时再生吸附床的各段。由于本发明有助于降低清洗流量和改善再生效率,所以特别适用于空气纯化。

具有改进的传质性能的无粘合剂的吸附剂及其在对二甲苯吸附分离中的用途

本发明描述了从包含至少一种其它C 8 烷基芳族烃的混合物(例如邻二甲苯、间二甲苯、对二甲苯和乙苯的混合物)中吸附分离对二甲苯的吸附剂和方法。合适的吸附剂包含平均晶粒尺寸小于1.8微米的小晶粒尺寸沸石X。所述吸附剂可以为无粘合剂的(例如在基本上不存在通常降低选择性孔体积的无定形材料的情况下配制)以进一步改进容量和传质。这些性能特别有利于改进以模拟移动床模式在低温、低循环时间吸附分离操作下的生产能力。

Chemically impregnated zeolite and method for its production and use

A class of methods for impregnating zeolite crystals with one of: sodium chlorite, acetic acid, citric acid, chlorine, sodium sulfite, and sodium bisulfite. Also, the resulting zeolite crystals impregnated under this class of methods.

Porous nanocomposite polymers for water treatment.

Síntesis, fabricación y aplicación de polímeros nanocompuestos en diferentes formas (como recubrimientos de membrana/filtro, como perlas o como esponjas porosas) para la remoción de microorganismos, metales pesados, químicos orgánicos e inorgánicos a partir de diferentes fuentes de agua contaminada.

Rapid temperature swing adsorption contactors for gas separation

Novel adsorbent contactors and methods are disclosed herein for use in temperature swing adsorption for gas separation applications, as well as for heat exchange applications.

Swing adsorption processes utilizing controlled adsorption fronts

A process for reducing the loss of valuable products by improving the overall recovery of a contaminant gas component in swing adsorption processes. The present invention utilizes at least two adsorption beds, in series, with separately controlled cycles to control the adsorption front and optionally to maximize the overall capacity of a swing adsorption process and to improve overall recovery a contaminant gas component from a feed gas mixture.

Modified adsorbent for dry scrubbing and use thereof

The present invention provides an amine functionalised adsorbent for use in dry scrubbing process. The adsorbent comprises amine functionalised mesoporous silica in which the amine groups are present at or near the surface of the silica, including within the pore walls and channels of the silica. The present invention further provides methods of preparing the adsorbent and of using the adsorbent for the adsorption of CO 2 and/or other acid gases.

CO adsorbents with hysteresis

The Present Invention is directed to a composition, its synthesis and a process for adsorptive separation of carbon monoxide from gas mixtures using adsorbents, which comprise cuprous compounds on amorphous oxide macroporous supports. The compositions are prepared by impregnating cupric compounds on supports followed by reduction of the cupric compound to the corresponding cuprous compound. The reduction can be performed by the use of a reducing gas, preferably synthesis gas at relatively low temperatures up to 150° C., preferably preceded by the use of elevated temperature above 250° C. All the adsorbents described in this invention consist of CuCl particles of finite size supported on macroporous support materials including alumina and silica gel. Among the ingredients used to form supported CuCl fine particles are support materials of low dispersing power, high copper loading, absence of dispersants, and proper post heat-treatment. The bulk nature of the active component (i.e., CuCl particles) and the resulting hysteresis in desorption provide adsorbents which have both high working capacity and high selectivity for a pressure swing adsorptive separation process.

Desulfurizing agent and preparation method thereof

本发明揭示了一种脱硫吸附剂组合物及其制备方法。本发明可提供一种脱硫吸附剂组合物，该脱硫吸附剂组合物通过活性成分的均匀分布可改善活性成分的利用率，提供反应所必须的宽比表面积、适用于热气脱硫工艺（特别是流化床工艺）的形状、平均粒度和粒度分布，提升了耐磨性（强度）、耐热性以及脱硫能力（硫吸附能力），本发明还提供了一种使用所述脱硫吸附剂组合物的脱硫吸附剂。

Desulfurization system with novel sorbent transfer mechanism

Desulfurization system with novel sorbent transfer mechanism

A hydrocarbon desulfurization system employing regenerable solid sorbent particulates in a fluidized bed desulfurization reactor. The sulfur-loaded sorbent particulates are continuously withdrawn from the reactor and transferred to a regenerator. A novel solids transport mechanism provides for the safe and effective transfer of the sulfur-loaded sorbent particulates from the high pressure hydrocarbon environment of the reactor to the low pressure oxygen environment of the regenerator.

Process for removing water from ammonia

본 발명은 물의 제거를 수행하기 위한 조건 하에 수소화물 기체를 건조제와 접촉시킴으로써, 수소화물 기체, 특히 암모니아로부터 물을 제거하는 방법의 개선에 관한 것이다. 상기 수소화물 기체에서 물 함량을 미량의 수준으로 유의적으로 감소시키는 상기 방법은 1종 이상의 1족 금속 산화물 및 1종 이상의 2족 금속 산화물을 건조제로서 사용하는 것을 특징으로 한다. The present invention relates to an improvement in the method of removing water from hydride gases, in particular ammonia, by contacting a hydride gas with a desiccant under conditions for carrying out the removal of water. The method of significantly reducing the water content in the hydride gas to trace levels is characterized by using at least one Group 1 metal oxide and at least one Group 2 metal oxide as a desiccant.

Cryogenic absorption method for xenon recycling

本发明描述了一种用于从低温液体或气流中回收氙的吸附方法，其中吸附床与上述含氙的液体或气流接触并从所述流体流中选择性地吸附所述氙。操作所述吸附床以至少接近氙的完全穿透，以使得在使用温度摆动方法进行再生之前能够深度排斥其它流组分。在再生之前操作所述吸附床以接近氙的完全穿透使得能够从所述吸附床产生高纯度产物，并且进一步使得氧气能够安全地用作吹扫气体，即使在烃共同存在于所述进料流中的情况下也是如此。

Catalyst particle of certain shape

Изобретение касается частиц катализатора, реакторов, содержащих слой таких частиц катализатора, и химических реакций, катализируемых с помощью таких частиц катализатора. Описана частица катализатора для обработки текучей среды в форме трехмерного эллипсоида, имеющего три главные оси, у которого по меньшей мере две главные оси имеют разную длину, содержащая по меньшей мере один канал внутри частицы, распространяющийся от первого положения на поверхности частицы сквозь внутренность частицы до второго положения на поверхности частицы. Слой катализатора содержит множество описанных частиц катализатора, которые упакованы вместе внутри резервуара, где данный слой катализатора содержит пустые пространства между частицами катализатора в добавление к частицам катализатора, и данные пустые пространства между частицами образуют каналы между частицами, сквозь которые может течь текучая среда. Раскрывается способ проведения химической реакции, включающий этап, где осуществляют контакт по меньшей мере одного исходного химического соединения с указанным слоем катализатора с образованием по меньшей мере одного получаемого химического соединения. Способ обработки текучей смеси для избирательного удаления одного или нескольких целевых компонентов упомянутой смеси включает приведение в контакт упомянутой текучей среды с упакованным слоем, содержащим указанный слой катализатора, так что по меньшей мере часть упомянутых целевых компонентов переходит из упомянутой текучей смеси в упомянутые частицы катализатора. Технический результат - улучшение регулирования потоков текущих сред и химических реакций в слоях катализатора. 4 н. и 15 з.п. ф-лы, 3 пр., 1 табл., 31 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК B01J 35/02 B01J 35/10 B01J 37/02 B01J 32/00 (11) (13) 2 701 190 C2 (2006.01) (2006.01) (2006.01) (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B01J 35/02 (2019.02); B01J 35/10 (2019.02); B01J 37/02 (2019.02); B01J 32/00 (2019.02 ...