公开(公告)号：US20120121497A1

公开(公告)日：2012-05-17

申请号：US12974183

申请日：2010-12-21

Applicant: Paul Terrien ,  Trapti Chaubey ,  Purushottam V. Shanbhag ,  Bhadra S. Grover ,  Dennis A. Vauk ,  Arthur Darde

Inventor： Paul Terrien ,  Trapti Chaubey ,  Purushottam V. Shanbhag ,  Bhadra S. Grover ,  Dennis A. Vauk ,  Arthur Darde

IPC: C01B31/20 ,  C01B3/02

CPC classification number: B01D53/002 ,  B01D53/226 ,  B01D2257/108 ,  B01D2257/504 ,  C01B3/501 ,  C01B3/506 ,  C01B2203/0233 ,  C01B2203/0283 ,  C01B2203/0405 ,  C01B2203/046 ,  C01B2203/0475 ,  C01B2203/142 ,  F25J3/0223 ,  F25J3/0252 ,  F25J3/0266 ,  F25J3/0625 ,  F25J3/0655 ,  F25J3/067 ,  F25J2200/02 ,  F25J2205/04 ,  F25J2205/40 ,  F25J2205/60 ,  F25J2205/80 ,  F25J2215/04 ,  F25J2220/82 ,  F25J2230/30 ,  F25J2245/02 ,  F25J2270/90 ,  Y02C10/10 ,  Y02C10/12 ,  Y02P20/152 ,  Y02P30/30

Abstract: The present invention provides a process for recovering hydrogen and carbon dioxide from a process stream (1) of a process unit (0) wherein the process stream (1) contains at least carbon dioxide, hydrogen and methane. In the process, the process stream (1) is optionally compressing in a first compressor (2) before being cooled in a heat exchanger (3) to a temperature equal to or less than −10° C. Next, the cooled process stream (1) is separated and purified in a carbon dioxide separation unit (4) to produce a carbon dioxide rich liquid stream (6) and a carbon dioxide lean non-condensable stream (5) with the carbon dioxide rich liquid stream (6) being withdrawn as a carbon dioxide product for further use. The carbon dioxide lean non-condensable stream (5) is then withdrawn from the carbon dioxide separation unit (4) and passed through a hydrogen selective membrane separation unit (7) to form a hydrogen rich permeate stream (8) with the remaining components in the carbon dioxide lean non-condensable stream (5) forming a hydrogen lean residue stream (9). The hydrogen lean residue stream (9) is passed through a carbon dioxide selective membrane separation unit (10) to form a carbon dioxide enriched permeate stream (11) with the remaining components in the hydrogen lean residue stream (9) forming a carbon dioxide depleted residue stream (12). The hydrogen rich permeate stream (8) is optionally compressed in a second compressor (13) and recycled for use as a supplemental feed stream in the process unit (0) or in other processes. The carbon dioxide enriched permeate stream (11) is recycled to the process stream (1) prior to the compressor (2) or within the compressor (2) between stages of compression, or to the carbon dioxide separation unit (4) while the carbon dioxide depleted residue stream (12) is withdrawn for further use. The present invention further relates to the use of this process within a hydrogen generation plant to increase recovery of hydrogen and capture equal to or greater than 90% of the carbon dioxide in the syngas stream.

公开(公告)号：US20090181168A1

公开(公告)日：2009-07-16

申请号：US12351723

申请日：2009-01-09

Applicant: Trapti Chaubey ,  Mindi Xu

Inventor： Trapti Chaubey ,  Mindi Xu

IPC: C23C16/00 ,  C23C16/54

CPC classification number: C23C16/4481

Abstract: An apparatus and method for holding a solid precursor in a sublimator such that the solid precursor can be vaporized for saturating a carrier gas. The apparatus may include alternating disks or shelves that form inner and outer passages, as well as spaces between the disks for fluidicly coupling the passages to create a winding, tortuous fluid flow path through the sublimator for optimizing solid vapor saturation. The method may include directing a carrier gas into a sublimation chamber, around the first shelf in the outer passage, over the first shelf in the space, around the second shelf in the inner passage, and back out of the sublimation chamber.

Abstract translation: 一种用于在升华器中保持固体前体的装置和方法，使得固体前体可以蒸发以使载气饱和。 该装置可以包括形成内部和外部通道的交替的盘或架，以及盘之间的空间，用于流体地联接通道，以产生通过升华器的绕曲曲折的流体流动路径，以优化固体蒸气饱和度。 该方法可以包括将载气引导到在外部通道中的第一搁板周围的空间中的第一搁板周围的升华室中，围绕内部通道中的第二搁板，并且从升华室返回。

公开(公告)号：US20080009645A1

公开(公告)日：2008-01-10

申请号：US11608096

申请日：2006-12-07

Applicant: Mindi Xu ,  Trapti Chaubey

Inventor： Mindi Xu ,  Trapti Chaubey

IPC: C07F7/08 ,  C07F7/00 ,  C07F7/02 ,  C07F7/20 ,  C07F7/04

CPC classification number: C07F7/20 ,  C07F7/21

Abstract: A method for purifying organosilicon precursor compounds is provided. It includes preparation of the adsorbent with a treating compound. The thus-treated adsorbents can be used to remove impurities such as organic impurities and moisture from a composition containing an organosilicon containing compound. In this manner, it is able to purify organosilicon precursors (or solutions containing organosilicon precursors) without inducing decomposition of the organosilicon precursor.

Abstract translation: 提供了一种纯化有机硅前体化合物的方法。 它包括用处理化合物制备吸附剂。 这样处理的吸附剂可用于从含有机硅化合物的组合物中除去有机杂质和水分等杂质。 以这种方式，能够纯化有机硅前体（或含有机硅前体的溶液）而不引起有机硅前体的分解。

公开(公告)号：US09034105B2

公开(公告)日：2015-05-19

申请号：US12351723

申请日：2009-01-09

Applicant: Trapti Chaubey ,  Mindi Xu

Inventor： Trapti Chaubey ,  Mindi Xu

IPC: C23C16/00 ,  C23C16/448

CPC classification number: C23C16/4481

Abstract: An apparatus and method for holding a solid precursor in a sublimator such that the solid precursor can be vaporized for saturating a carrier gas. The apparatus may include alternating disks or shelves that form inner and outer passages, as well as spaces between the disks for fluidicly coupling the passages to create a winding, tortuous fluid flow path through the sublimator for optimizing solid vapor saturation. The method may include directing a carrier gas into a sublimation chamber, around the first shelf in the outer passage, over the first shelf in the space, around the second shelf in the inner passage, and back out of the sublimation chamber.

Abstract translation: 一种用于在升华器中保持固体前体的装置和方法，使得固体前体可以蒸发以使载气饱和。 该装置可以包括形成内部和外部通道的交替的盘或架，以及盘之间的空间，用于流体地联接通道，以产生通过升华器的绕曲曲折的流体流动路径，以优化固体蒸气饱和度。 该方法可以包括将载气引导到在外部通道中的第一搁板周围的空间中的第一搁板周围的升华室中，围绕内部通道中的第二搁板，并且从升华室返回。

公开(公告)号：US08535638B2

公开(公告)日：2013-09-17

申请号：US12974183

申请日：2010-12-21

Applicant: Paul Terrien ,  Trapti Chaubey ,  Purushottam V. Shanbhag ,  Bhadra S. Grover ,  Dennis A. Vauk ,  Arthur Darde

Inventor： Paul Terrien ,  Trapti Chaubey ,  Purushottam V. Shanbhag ,  Bhadra S. Grover ,  Dennis A. Vauk ,  Arthur Darde

IPC: C01B3/24 ,  C01B3/38

CPC classification number: B01D53/002 ,  B01D53/226 ,  B01D2257/108 ,  B01D2257/504 ,  C01B3/501 ,  C01B3/506 ,  C01B2203/0233 ,  C01B2203/0283 ,  C01B2203/0405 ,  C01B2203/046 ,  C01B2203/0475 ,  C01B2203/142 ,  F25J3/0223 ,  F25J3/0252 ,  F25J3/0266 ,  F25J3/0625 ,  F25J3/0655 ,  F25J3/067 ,  F25J2200/02 ,  F25J2205/04 ,  F25J2205/40 ,  F25J2205/60 ,  F25J2205/80 ,  F25J2215/04 ,  F25J2220/82 ,  F25J2230/30 ,  F25J2245/02 ,  F25J2270/90 ,  Y02C10/10 ,  Y02C10/12 ,  Y02P20/152 ,  Y02P30/30

Abstract: The present invention provides a process for recovering hydrogen and carbon dioxide from a process stream of a process unit wherein the process stream contains at least carbon dioxide, hydrogen, and methane.

Abstract translation: 本发明提供了一种从处理单元的工艺流中回收氢和二氧化碳的方法，其中工艺物流至少包含二氧化碳，氢气和甲烷。

公开(公告)号：US20110127469A1

公开(公告)日：2011-06-02

申请号：US12627601

申请日：2009-11-30

Applicant: Trapti Chaubey ,  Yudong Chen ,  Robert Gagliano

Inventor： Trapti Chaubey ,  Yudong Chen ,  Robert Gagliano

IPC: C01B3/38

CPC classification number: C01B3/50 ,  B01D53/002 ,  B01D53/04 ,  B01D53/047 ,  B01D53/1475 ,  B01D53/75 ,  B01D2256/16 ,  B01D2257/30 ,  B01D2257/404 ,  B01D2257/504 ,  B01D2257/7022 ,  B01D2257/7025 ,  B01D2257/80 ,  C01B3/506 ,  C01B3/56 ,  C01B2203/02 ,  C01B2203/042 ,  C01B2203/043 ,  C01B2203/046 ,  C01B2203/047 ,  C01B2203/145 ,  C01B2203/147 ,  C01B2203/148 ,  F25J3/0223 ,  F25J3/0252 ,  F25J3/0261 ,  F25J2205/40 ,  F25J2205/60 ,  F25J2205/68 ,  F25J2205/70 ,  F25J2245/02 ,  F25J2290/44 ,  F28F21/083 ,  Y02C20/20 ,  Y02P20/152 ,  Y02P20/156

Abstract: The present invention provides a process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by FTS reactions in a syngas treatment unit by utilizing heat exchangers and optionally associated pipes that are substantially fabricated of a material selected from the group consisting of chromium containing alloys and carbon steel for heating up gas streams having a carbon monoxide partial pressure of less than or equal to one bar and obtained from a front end purification unit/cold box unit.

Abstract translation: 本发明提供了一种通过利用热交换器和任选的相关管道来减少或消除由合成气处理单元中的FTS反应引起的不需要的烃和含氧化合物产物的方法，该热交换器和任选的相关管道基本上由选自含铬合金和碳 用于加热一氧化碳分压小于或等于1巴并从前端净化单元/冷箱单元获得的气流的钢。

公开(公告)号：US20120292574A1

公开(公告)日：2012-11-22

申请号：US13169270

申请日：2011-06-27

Applicant: Paul Terrien ,  Trapti Chaubey ,  Purushottam V. Shanbhag ,  Bhadra S. Grover ,  Dennis A. Vauk ,  Arthur Darde ,  Pascal Marty

Inventor： Paul Terrien ,  Trapti Chaubey ,  Purushottam V. Shanbhag ,  Bhadra S. Grover ,  Dennis A. Vauk ,  Arthur Darde ,  Pascal Marty

IPC: C01B3/32

Abstract: This present invention provides a method to more efficiently recover hydrogen and carbon dioxide, preferably at least 50%, even more preferably at least 75%, and most preferably at least 90% of the carbon dioxide. The present invention further provides the design for capture of at least 80%, carbon dioxide from syngas that allows for the simultaneous production of medium to high amounts of hydrogen in the syngas as a part of the production of hydrogen in a hydrogen generation plant. By using the process of the present invention, especially in terms of a hydrogen generation plant, it is possible to increase recovery of hydrogen and capture of the carbon dioxide in the syngas stream by balancing the recycle of the hydrogen rich permeate from the hydrogen membrane separation units to the process unit and/or the water gas shift as capacity allows when a carbon dioxide separation unit, a carbon dioxide membrane separation unit and two hydrogen membrane separation units are utilized.

公开(公告)号：US20120118011A1

公开(公告)日：2012-05-17

申请号：US12974298

申请日：2010-12-21

Applicant: Paul Terrien ,  Trapti Chaubey ,  Purushottam V. Shanbhag ,  Bhadra S. Grover ,  Dennis A. Vauk ,  Arthur Darde

Inventor： Paul Terrien ,  Trapti Chaubey ,  Purushottam V. Shanbhag ,  Bhadra S. Grover ,  Dennis A. Vauk ,  Arthur Darde

IPC: F25J3/02 ,  F25J3/08

CPC classification number: B01D53/002 ,  B01D53/226 ,  B01D2257/108 ,  B01D2257/504 ,  C01B3/38 ,  C01B3/48 ,  C01B3/501 ,  C01B3/506 ,  C01B3/56 ,  C01B2203/0205 ,  C01B2203/0233 ,  C01B2203/0283 ,  C01B2203/0294 ,  C01B2203/0405 ,  C01B2203/043 ,  C01B2203/046 ,  C01B2203/0475 ,  C01B2203/147 ,  C01B2203/148 ,  F25J3/0223 ,  F25J3/0252 ,  F25J3/0266 ,  F25J3/0625 ,  F25J3/0655 ,  F25J3/067 ,  F25J2200/02 ,  F25J2205/04 ,  F25J2205/40 ,  F25J2205/60 ,  F25J2205/80 ,  F25J2215/04 ,  F25J2220/82 ,  F25J2230/30 ,  F25J2245/02 ,  F25J2270/90 ,  Y02C10/10 ,  Y02C10/12 ,  Y02P20/152 ,  Y02P30/30

Abstract: The present invention provides a method to more efficiently recover hydrogen and carbon dioxide as well as a design for carbon dioxide capture from syngas that allows for the simultaneous production of medium to high amounts of hydrogen and the capture of at least 90% of the carbon dioxide in the syngas as a part of the production of hydrogen in a hydrogen generation plant. Through the use of a combination of hydrogen selective membranes and carbon dioxide selective membranes together with a carbon dioxide separation unit it is possible to increase recovery of hydrogen and carbon dioxide and improved process efficiency of the hydrogen generation plant.

Abstract translation: 本发明提供了一种更有效地回收氢气和二氧化碳的方法以及从合成气中捕获二氧化碳的设计，其允许同时产生中等至大量的氢气并捕获至少90％的二氧化碳 在合成气中作为氢气发电厂生产氢气的一部分。 通过使用氢选择性膜和二氧化碳选择性膜与二氧化碳分离单元的组合，可以增加氢气和二氧化碳的回收率并提高氢气发生设备的工艺效率。

公开(公告)号：US20110207836A1

公开(公告)日：2011-08-25

申请号：US12709909

申请日：2010-02-22

Applicant: Yudong Chen ,  Christian Monereau ,  Trapti Chaubey ,  Guillaume Rodrigues

Inventor： Yudong Chen ,  Christian Monereau ,  Trapti Chaubey ,  Guillaume Rodrigues

IPC: C07C27/00

CPC classification number: B01D53/002 ,  B01D53/0462 ,  B01D53/75 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2256/16 ,  B01D2256/20 ,  B01D2257/30 ,  B01D2257/404 ,  B01D2257/502 ,  B01D2257/504 ,  B01D2257/702 ,  B01D2259/4141 ,  C01B3/506 ,  C01B3/52 ,  C01B3/56 ,  C01B2203/0233 ,  C01B2203/0244 ,  C01B2203/025 ,  C01B2203/0415 ,  C01B2203/043 ,  C01B2203/046 ,  C01B2203/047 ,  C01B2203/147 ,  C10G2/32 ,  C10G2300/1022 ,  C10K1/00 ,  Y02P20/152

Abstract: The present invention provides a process for decreasing or eliminating unwanted hydrocarbon and oxygenate products caused by FTS reactions in a syngas treatment unit by utilizing heat exchangers and optionally associated pipes that are substantially fabricated of a metal material selected from the group consisting of iron, nickel, cobalt, carbon steel or stainless steel and having deposited on the metal surfaces that will come in contact with the coldbox overhead gas stream an inert coating selected from the group consisting of silicon based materials, zinc based materials, tin based materials, chromium based materials, polymers, ceramics and mixtures thereof for heating up gas streams having a mixture of hydrogen and carbon monoxide and obtained from a front end purification unit/cold box unit.

Abstract translation: 本发明提供了一种通过利用热交换器和任选的相关管道来减少或消除由合成气处理单元中的FTS反应引起的不需要的烃和含氧化合物产物的方法，该热交换器和任选的相关管道基本上由选自铁，镍， 钴，碳钢或不锈钢，并且沉积在与冷却塔塔顶气流接触的金属表面上，惰性涂层选自硅基材料，锌基材料，锡基材料，铬基材料， 聚合物，陶瓷及其混合物，用于加热具有氢和一氧化碳的混合物并从前端净化单元/冷箱单元获得的气流。

公开(公告)号：US20120291483A1

公开(公告)日：2012-11-22

申请号：US13169206

申请日：2011-06-27

Applicant: Paul Terrien ,  Trapti Chaubey ,  Purushottam V. Shanbhag ,  Bhadra S. Grover ,  Dennis A. Vauk ,  Arthur Darde ,  Pascal Marty

Inventor： Paul Terrien ,  Trapti Chaubey ,  Purushottam V. Shanbhag ,  Bhadra S. Grover ,  Dennis A. Vauk ,  Arthur Darde ,  Pascal Marty

IPC: F25J3/08

CPC classification number: C01B3/38 ,  C01B3/36 ,  C01B3/384 ,  C01B3/48 ,  C01B3/501 ,  C01B3/506 ,  C01B3/56 ,  C01B2203/0233 ,  C01B2203/0244 ,  C01B2203/025 ,  C01B2203/0283 ,  C01B2203/0288 ,  C01B2203/0294 ,  C01B2203/0405 ,  C01B2203/043 ,  C01B2203/046 ,  C01B2203/0475 ,  C01B2203/0811 ,  C01B2203/0822 ,  C01B2203/0827 ,  C01B2203/146 ,  C01B2203/147 ,  C01B2203/148 ,  C01B2203/86 ,  F25J3/0223 ,  F25J3/0252 ,  F25J3/0266 ,  F25J2200/02 ,  F25J2205/04 ,  F25J2205/40 ,  F25J2205/80 ,  F25J2210/04 ,  F25J2220/82 ,  F25J2230/30 ,  F25J2245/02 ,  Y02C10/04 ,  Y02C10/12 ,  Y02P20/128 ,  Y02P20/152 ,  Y02P30/30

Abstract: The present invention provides a process for recovering hydrogen and carbon dioxide from a process stream utilizing a carbon dioxide separation unit and two membrane separation units. The present invention further provides a process within a hydrogen generation plant to increase recovery of hydrogen and capture equal to or greater than 80% of the carbon dioxide in the syngas stream. By using the process of the present invention, especially in terms of a hydrogen generation plant, it is possible to increase recovery of hydrogen and capture of the carbon dioxide in the syngas stream by balancing the recycle of the hydrogen rich permeate from the hydrogen membrane separation unit to the process unit and/or the water gas shift as capacity allows when a carbon dioxide separation unit, a carbon dioxide membrane separation unit and a hydrogen membrane separation unit are utilized.