公开(公告)号：US07959720B2

公开(公告)日：2011-06-14

申请号：US12080784

申请日：2008-04-04

Applicant: Harry W. Deckman ,  Ronald R. Chance ,  Edward W. Corcoran, Jr. ,  David L. Stern

Inventor： Harry W. Deckman ,  Ronald R. Chance ,  Edward W. Corcoran, Jr. ,  David L. Stern

IPC: B01D53/02

CPC classification number: B01D53/0407 ,  B01D53/047 ,  B01D2253/102 ,  B01D2253/106 ,  B01D2253/31 ,  B01D2253/342 ,  B01D2256/24 ,  B01D2257/304 ,  B01D2257/404 ,  B01D2257/504 ,  C07C7/12 ,  C10L3/10 ,  C10L3/102 ,  Y02C10/08 ,  Y02P20/152 ,  C07C9/04

Abstract: The present invention relates to engineered structured adsorbent contactors for use in pressure swing adsorption and thermal swing adsorption processes. Preferably, the contactors contain engineered and substantially parallel flow channels wherein 20 volume percent or less of the open pore volume of the contactor, excluding the flow channels, is in the mesopore and macropore range.

Abstract translation: 本发明涉及用于变压吸附和热变形吸附过程的工程化结构化吸附剂接触器。 优选地，接触器包含工程化和基本上平行的流动通道，其中不包括流动通道的接触器的开孔体积的20体积％或更少在中孔和大孔范围内。

公开(公告)号：US20110100873A1

公开(公告)日：2011-05-05

申请号：US11795552

申请日：2006-01-23

Applicant: John W. Viets ,  Narasimhan Sundaram ,  Bal K. Kaul ,  David L. Stern

Inventor： John W. Viets ,  Narasimhan Sundaram ,  Bal K. Kaul ,  David L. Stern

IPC: C10G65/10 ,  C10G49/22

CPC classification number: C10G47/02 ,  B01D53/0423 ,  B01D53/0473 ,  B01D2253/10 ,  B01D2253/104 ,  B01D2253/106 ,  B01D2253/108 ,  B01D2256/16 ,  B01D2256/24 ,  B01D2257/702 ,  B01D2259/403 ,  C01B3/56 ,  C01B2203/042 ,  C01B2203/048 ,  C10G47/00 ,  C10G47/18 ,  C10G47/20 ,  C10G2300/1044 ,  C10G2300/4081

Abstract: An improved process for hydrocracking heavy petroleum feedstocks wherein hydrogen-containing streams associated with a hydrocracker are subjected to rapid cycle pressure swing adsorption having a cycle time of less than 30 S.

Abstract translation: 加氢裂化重质石油原料的改进方法，其中与加氢裂化器相关的含氢物流经历循环时间小于30S的快速循环变压吸附。

公开(公告)号：US20100108571A1

公开(公告)日：2010-05-06

申请号：US11795547

申请日：2006-01-23

Applicant: James J. Schorfheide ,  Sean C. Smyth ,  Bal K. Kaul ,  David L. Stern

Inventor： James J. Schorfheide ,  Sean C. Smyth ,  Bal K. Kaul ,  David L. Stern

IPC: C10G45/04

CPC classification number: C10G45/04

Abstract: This invention relates to an improved hydrotreating process for removing sulfur from naphtha and distillate feedstreams. This improved process utilizes a hydrotreating zone, an acid gas removal zone, and a pressure swing adsorption zone having a total cycle time of less than about 30 seconds for increasing the concentration of hydrogen utilized in the process.

Abstract translation: 本发明涉及用于从石脑油和馏出物进料流中除去硫的改进的加氢处理方法。 该改进的方法利用加氢处理区，酸性气体去除区和总循环时间小于约30秒的变压吸附区，以增加在该方法中使用的氢的浓度。

公开(公告)号：US20090139900A1

公开(公告)日：2009-06-04

申请号：US12322485

申请日：2009-02-03

Applicant: William A. Wachter ,  Stephen J. McCathy ,  Jeffrey S. Beck ,  David L. Stern

Inventor： William A. Wachter ,  Stephen J. McCathy ,  Jeffrey S. Beck ,  David L. Stern

IPC: C10G11/02

CPC classification number: C10G11/04 ,  C10G11/05

Abstract: This invention relates to a FCC process using a mesoporous catalytic cracking catalyst. The mesoporous fluidized catalytic cracking catalyst is selective for minimizing the production of coke and light gas. The catalyst comprises at least one amorphous, porous matrix, each matrix having pores ranging in diameter from about 1 Å to about 10 Å and pores ranging in diameter from about 40 Å to about 500 Å, wherein in the pore range from 50 Å to 250 Å, there is a single maximum in differential pore volume distribution over the 50 Å to 250 Å range.

公开(公告)号：US07326332B2

公开(公告)日：2008-02-05

申请号：US10671080

申请日：2003-09-25

Applicant: Tan-Jen Chen ,  John Scott Buchanan ,  Brian Erik Henry ,  Paul F. Keusenkothen ,  Philip A. Ruziska ,  David L. Stern

Inventor： Tan-Jen Chen ,  John Scott Buchanan ,  Brian Erik Henry ,  Paul F. Keusenkothen ,  Philip A. Ruziska ,  David L. Stern

IPC: C10G11/00 ,  C10G11/05

CPC classification number: C10G11/05 ,  B01J29/005 ,  B01J29/40 ,  B01J29/85

Abstract: A multi component catalyst and catalytic cracking process for selectively producing C3 olefins. The catalyst comprises a first molecular sieve having an intermediate pore size, a second molecular sieve and, optionally a third molecular sieve having a large pore size. At least one of the channels of the second molecular sieve has a pore size index that is less than the pore size index of at least one channel of the first molecular sieve. The process is carried out by contacting a feedstock containing hydrocarbons having at least 5 carbon atoms is contacted, under catalytic cracking conditions, with the multi component catalyst. The catalyst finds application in the cracking of naphtha and heavy hydrocarbon feedstocks.

Abstract translation: 用于选择性制备C 3 O 3烯烃的多组分催化剂和催化裂解方法。 催化剂包括具有中等孔径的第一分子筛，第二分子筛和任选的具有大孔径的第三分子筛。 第二分子筛的至少一个通道的孔径指数小于第一分子筛的至少一个通道的孔径指数。 该方法通过使含有至少5个碳原子的烃的原料在催化裂化条件下与多组分催化剂接触来进行。 该催化剂可用于石脑油和重质烃原料的裂解。

公开(公告)号：US07214840B2

公开(公告)日：2007-05-08

申请号：US10897528

申请日：2004-07-23

Applicant: Frederick Y. Lo ,  David L. Stern ,  Ronald J. Cimini ,  James L. Propp

Inventor： Frederick Y. Lo ,  David L. Stern ,  Ronald J. Cimini ,  James L. Propp

IPC: C07C2/68

CPC classification number: C07C2/66 ,  C07C7/13 ,  C07C2529/70 ,  C07C15/107

Abstract: In a process for reducing the Bromine Index of a feed containing a linear alkylbenzene and bromine-reactive olefinic hydrocarbon contaminants, the feed is contacted under conditions effective to remove bromine-reactive olefinic hydrocarbon contaminants with a catalyst comprising zeolite Y catalyst having an alpha value of about 2 to about 30. The feed will normally also contain benzene and linear paraffin remaining from the alkylation process used to produce the linear alkylbenzene.

Abstract translation: 在减少含有直链烷基苯和溴反应性烯烃污染物的进料的溴指数的方法中，使用含有沸石Y催化剂的催化剂有效除去溴反应性烯烃污染物的条件进料进料接触，该催化剂的α值为 约2至约30.进料通常还含有从用于生产直链烷基苯的烷基化方法残留的苯和线性链烷烃。

公开(公告)号：US07148391B1

公开(公告)日：2006-12-12

申请号：US10294428

申请日：2002-11-14

Applicant: John Scott Buchanan ,  Ronald J. Cimini ,  Frank Wenyih Lai ,  Jose G. Santiesteban ,  David A. Stachelczyk ,  David L. Stern ,  Hye-Kyung C. Timken ,  William A. Weber ,  Robert A. Crane

Inventor： John Scott Buchanan ,  Ronald J. Cimini ,  Frank Wenyih Lai ,  Jose G. Santiesteban ,  David A. Stachelczyk ,  David L. Stern ,  Hye-Kyung C. Timken ,  William A. Weber ,  Robert A. Crane

IPC: C07C5/52

CPC classification number: B01J29/80 ,  B01J29/40 ,  B01J29/44 ,  B01J29/48 ,  B01J29/70 ,  B01J29/74 ,  B01J29/78 ,  B01J35/002 ,  B01J37/0009 ,  B01J2229/20 ,  B01J2229/42 ,  C07C6/126 ,  C10G45/64 ,  Y02P20/52

Abstract: In a process for converting C9+ aromatic hydrocarbons to lighter aromatic products a feed comprising C9+ aromatic hydrocarbons is contacted under transalkylation reaction conditions with a catalyst composition comprising (i) a first molecular sieve selected from the group consisting of ZSM-12, mordenite and a porous crystalline inorganic oxide material having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07; and (ii) a second molecular sieve having a constraint index ranging from 3 to 12. At least the first molecular sieve has a hydrogenation component associated therewith and the first and second molecular sieves are contained in the same catalyst bed. The C9+ aromatic hydrocarbons are converted under the transalkylation reaction conditions to a reaction product containing xylene.

Abstract translation: 在将C 9+芳烃转化成较轻芳香族产物的方法中，包含C 9+芳烃的进料在烷基转移反应条件下与催化剂组合物接触，所述催化剂组合物包含（i） 选自ZSM-12，丝光沸石和具有12.4±0.25,6.9±0.15,3.57±0.07和3.42±0.07的d间距最大值的X射线衍射图的多孔结晶无机氧化物材料的第一分子筛 ; 和（ii）约束指数为3至12的第二分子筛。至少第一分子筛具有与之相关的氢化组分，并且第一和第二分子筛包含在相同的催化剂床中。 在烷基转移反应条件下将C 9+芳烃转化成含有二甲苯的反应产物。

公开(公告)号：US06878654B2

公开(公告)日：2005-04-12

申请号：US10243572

申请日：2002-09-13

Applicant: Ajit B. Dandekar ,  Michael Hryniszak ,  Jeffrey S. Beck ,  David L. Stern ,  Kathleen M. Keville

Inventor： Ajit B. Dandekar ,  Michael Hryniszak ,  Jeffrey S. Beck ,  David L. Stern ,  Kathleen M. Keville

IPC: B01J29/70 ,  B01J29/90 ,  B01J38/12 ,  B01J38/60 ,  B01J38/62 ,  B01J38/64 ,  B01J38/66 ,  C07B61/00 ,  C07C2/66 ,  C07C6/12 ,  C07C15/073 ,  C07C15/085 ,  B01J20/34 ,  B01J21/08

CPC classification number: C07C2/66 ,  B01J29/90 ,  B01J38/12 ,  B01J38/60 ,  B01J38/64 ,  B01J38/66 ,  C07C6/126 ,  C07C2529/08 ,  C07C2529/18 ,  C07C2529/70 ,  Y02P20/52 ,  Y02P20/584 ,  C07C15/085 ,  C07C15/073 ,  C07C15/02

Abstract: The present invention provides a process for regenerating a spent aromatics alkylation or transalkylation catalyst comprising a molecular sieve by contacting the spent catalyst with an oxygen-containing gas at a temperature of about 120 to about 600° C. and then contacting the catalyst with an aqueous medium, such as an ammonium nitrate solution, an ammonium carbonate solution or an acid solution.

Abstract translation: 本发明提供了一种通过在约120至约600℃的温度下使废催化剂与含氧气体接触而使含有分子筛的废芳烃烷基化或烷基转移催化剂再生的方法，然后使催化剂与水 介质，如硝酸铵溶液，碳酸铵溶液或酸溶液。

公开(公告)号：US06207871B1

公开(公告)日：2001-03-27

申请号：US08995270

申请日：1997-12-19

Applicant: Stuart D. Hellring ,  David L. Stern

Inventor： Stuart D. Hellring ,  David L. Stern

IPC: C07C1512

CPC classification number: C07C5/2767 ,  C07C5/2775 ,  C07C2529/40 ,  C07C15/08

Abstract: There is provided a process for producing high-purity meta-xylene by converting a hydrocarbon feedstream comprising at least about 5 wt % ethylbenzene and at least about 20 wt % meta-xylene, over a single molecular sieve catalyst under ethylbenzene conversion conditions sufficient to provide a primary product stream depleted of more than 50% of the ethylbenzene present in the feedstream. The process can further comprise stripping benzene and/or toluene by-products from the primary product stream to provide a secondary product stream comprising at least about 75 wt % mixed ortho-xylene and meta-xylene; and splitting the secondary product stream by removing substantially all of the ortho-xylene present therein to provide a tertiary product stream comprising at least about 95 wt % meta-xylene.

Abstract translation: 提供了一种通过在乙基苯转化条件下在单分子筛催化剂上转化包含至少约5重量％乙苯和至少约20重量％间二甲苯的烃进料流来生产高纯度间二甲苯的方法，该条件足以提供 在原料流中存在大于50％的乙苯的主要产物流。 该方法还可以包括从初级产物流中汽提苯和/或甲苯副产物以提供包含至少约75重量％混合的邻二甲苯和间二甲苯的次生产物流; 并且通过除去其中存在的基本上所有的邻二甲苯来分离次级产物流，以提供包含至少约95重量％间二甲苯的叔产物流。

公开(公告)号：US6080904A

公开(公告)日：2000-06-27

申请号：US728395

申请日：1996-10-09

Applicant: Clarence D. Chang ,  Jose G. Santiesteban ,  David L. Stern

Inventor： Clarence D. Chang ,  Jose G. Santiesteban ,  David L. Stern

IPC: C07C5/27 ,  C07C5/13

CPC classification number: C07C5/2724 ,  C07C5/2791 ,  C07C2523/14 ,  C07C2523/42

Abstract: There is provided an isomerization process using a catalyst comprising a hydrogenation/dehydrogenation component, such as a noble metal, and an acidic solid component comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. An example of this catalyst is zirconia, modified with tungstate and platinum. This catalyst is used to isomerize, for example, C.sub.4 to C.sub.8 paraffins. The feed to this paraffin isomerization reaction may, optionally, include cyclic hydrocarbons, such as benzene or cyclohexane, which may undergo ring opening reactions during the course of the isomerization reaction.

Abstract translation: 提供使用包含氢化/脱氢组分如贵金属的催化剂和包含用VIB族金属的氧阴离子改性的IVB族金属氧化物的酸性固体组分的异构化方法。 该催化剂的实例是用钨酸盐和铂改性的氧化锆。 该催化剂用于异构化例如C 4至C 8链烷烃。 这种链烷烃异构化反应的进料可以任选地包括在异构化反应过程中可能经历开环反应的环烃，例如苯或环己烷。