公开(公告)号：US5475180A

公开(公告)日：1995-12-12

申请号：US317511

申请日：1994-10-04

Applicant: Edwar S. Shamshoum ,  Thomas R. Schuler ,  Ashim K. Ghosh ,  James R. Butler ,  James T. Merrill

Inventor： Edwar S. Shamshoum ,  Thomas R. Schuler ,  Ashim K. Ghosh ,  James R. Butler ,  James T. Merrill

IPC: C07C6/12 ,  C07C5/52

CPC classification number: C07C6/123

Abstract: A process is provided for the disproportionation of a toluene feedstock over a metal promoted mordenite catalyst. The catalyst may contain between 1.0-1.5 weight percent nickel. The toluene feedstock is supplied to the reaction zone and into contact with the catalyst. The reaction zone is operated under disproportionation conditions. During disproportionation, heavy aromatic reformates, in concentration of at least 4 weight percent, are introduced into the reaction zone. Disproportionation product containing benzene and xylene is continuously withdrawn. The addition of the heavy aromatic reformate does not adversely affect toluene conversion rates, product selectivity to benzene, catalyst activity or catalyst life. Moreover, production of xylenes increase at the expense of production of heavies.

Abstract translation: 提供了一种用于在金属促进的丝光沸石催化剂上歧化甲苯原料的方法。 催化剂可以含有1.0-1.5重量％的镍。 将甲苯原料供应到反应区并与催化剂接触。 反应区在歧化条件下运行。 在歧化过程中，将浓度至少为4重量％的重质芳族重整油引入反应区。 含有苯和二甲苯的歧化产品不断退出。 加入重芳香重整油不会对甲苯转化率，产物对苯的选择性，催化剂活性或催化剂寿命产生不利影响。 此外，二甲苯的生产以重的生产为代价增加。

公开(公告)号：US20080306320A1

公开(公告)日：2008-12-11

申请号：US11811084

申请日：2007-06-08

Applicant: James T. Merrill

Inventor： James T. Merrill

IPC: C07C11/10

CPC classification number: C08F236/08 ,  C08C4/00

Abstract: Process for the production of an isoprene containing rubber compound by dehydrogenation of an isoamylene containing feedstock supplied to a dehydrogenation reactor containing a particulate dehydrogenation catalyst comprising iron and potassium and having a pore diameter of at least 500 nanometers. The dehydrogenation reactor is operated at a temperature of at least 570° C. to dehydrogenate the isoamylene to produce isoprene. The product containing isoprene and unreacted isoamylene is recovered from the dehydrogenation reactor. Isoprene is polymerized to produce an isoprene containing rubber product. An unreacted feed component containing isoamylene is separated from the rubber product and recycled to the dehydrogenation reactor.

Abstract translation: 通过将含有异戊烯的原料脱氢而制备含异戊二烯的橡胶化合物的方法，所述异戊烯的原料供给含有含有铁和钾并且孔径至少为500纳米的颗粒脱氢催化剂的脱氢反应器。 脱氢反应器在至少570℃的温度下操作以使异戊烯脱氢以产生异戊二烯。 从脱氢反应器回收含有异戊二烯和未反应的异戊烯的产物。 将异戊二烯聚合以产生含异戊二烯的橡胶产品。 将含有异戊烯的未反应进料组分与橡胶产物分离并再循环至脱氢反应器。

公开(公告)号：US06727398B2

公开(公告)日：2004-04-27

申请号：US09850672

申请日：2001-05-07

Applicant: James T. Merrill

Inventor： James T. Merrill

IPC: C07C710

CPC classification number: C07C15/46 ,  C07C7/167 ,  C07C2521/04 ,  C07C2523/02

Abstract: Apparatus, methods and systems useful for removing phenylacetylene from crude styrene feedstock are disclosed. Generally the processes and systems comprise the catalytic reduction of phenylacetylene to produce styrene via injection of a phenylacetylene reducing agent, such as hydrogen. A phenylacetylene reduction catalyst preferred herein comprises palladium on a calcium aluminate carrier, wherein the catalyst comprises less than 0.3 weight percent palladium.

Abstract translation: 公开了用于从粗苯乙烯原料中除去苯乙炔的装置，方法和系统。 通常，该方法和系统包括苯基乙炔的催化还原以通过注入苯乙炔还原剂如氢气来生产苯乙烯。 本文优选的苯乙炔还原催化剂包含铝酸钙载体上的钯，其中催化剂包含小于0.3重量％的钯。

公开(公告)号：US06689926B2

公开(公告)日：2004-02-10

申请号：US10074387

申请日：2002-02-12

Applicant: James T. Merrill

Inventor： James T. Merrill

IPC: C07C510

CPC classification number: C07C5/09 ,  C07C7/20 ,  Y02P20/52 ,  C07C15/46 ,  C07C11/04

Abstract: A process is disclosed which provides for the reduction of phenylacetylene levels in styrene monomer feedstreams, which process utilizes a normal styrene inhibitor additive, such as an hydroxylamine, injected into the styrene monomer feedstream immediately upstream of the phenylacetylene reduction reactor.

Abstract translation: 公开了一种方法，其提供苯乙烯单体原料流中苯基乙炔含量的降低，该方法利用苯基苯乙烯还原反应器上游的苯乙烯单体进料流中注入的正丁基苯乙烯抑制剂添加剂，例如羟胺。

公开(公告)号：US5900518A

公开(公告)日：1999-05-04

申请号：US739897

申请日：1996-10-30

Applicant: James T. Merrill ,  Joseph Honn Tudor

Inventor： James T. Merrill ,  Joseph Honn Tudor

IPC: B01J29/06 ,  C07B61/00 ,  C07C2/66 ,  C07C2/86 ,  C07C6/12 ,  C07C15/02 ,  C07C2/64 ,  C07C2/00

CPC classification number: C07C15/02 ,  C07C2529/06 ,  Y02P20/582

Abstract: The present invention addresses heat integration in an alkylation/transalkylation process involving alkylation of an aromatic substrate with a C.sub.2 -C.sub.4 alklating agent coupled with separation to recover a monoalkylated aromatic product and liquid phase transalkylation of a polyalkylated product. Aromatic feedstock and a C.sub.2 -C.sub.4 alkylating agent are supplied to an alkylation reaction zone which is operated to produce an alkylated product. The output from the alkylation reaction zone initially travels through an arrangement of heat exchangers. From there, the alkylation effluent passes into the first separation zone which is operated to produce a lower boiling fraction comprising the aromatic substrate, which may be recycled to the alkylation reaction zone, and a higher boiling fraction comprising a mixture of monoalkylated and polyalkylated aromatics. This lower boiling fraction first travels back through portions of the heat exchanger arrangement on the way to recycle into the alkylation zone. The higher boiling fraction of the first separation zone is supplied to a secondary separation zone to produce a second lower boiling fraction comprising the desired monoalkylated product and a higher boiling fraction comprising polyalkylated product. At least a portion of the higher boiling polyalkylated fraction passes through a portion of the heat exchanger arrangement into a transalkylation reaction zone containing a molecular sieve transalkylation catalyst operated under liquid phase conditions to cause disproportionation of the polyalkylated fraction to arrive at a disproportionation product having a reduced polyalkylated aromatic content and an enhanced monoalkylated aromatic content.

Abstract translation: 本发明涉及烷基化/烷基转移方法中的热积分，其涉及通过与分离相结合的C2-C4烷基化剂芳族底物的烷基化以回收单烷基化芳族产物和多烷基化产物的液相烷基转移。 将芳族原料和C 2 -C 4烷基化剂供给到烷基化反应区，其操作以产生烷基化产物。 烷基化反应区的输出最初通过热交换器的排列。 从那里，烷基化流出物进入第一分离区，其被操作以产生包含可以再循环到烷基化反应区的芳族底物的较低沸点馏分，以及包含单烷基化和多烷基化芳族化合物的混合物的较高沸点馏分。 该低沸点馏分首先通过热交换器装置的一部分在回收进入烷基化区的路上返回。 将第一分离区的较高沸点馏分供应到第二分离区以产生包含所需单烷基化产物和包含多烷基化产物的较高沸点馏分的第二较低沸点馏分。 高沸点多烷基化馏分的至少一部分通过热交换器装置的一部分进入含烷基转移反应区的烷基转移反应区，该烷基转移反应区含有在液相条件下操作的分子筛烷基转移催化剂，导致多烷基化馏分的歧化，得到具有 减少的多烷基化芳族含量和增强的单烷基化芳族含量。

公开(公告)号：US5030786A

公开(公告)日：1991-07-09

申请号：US371581

申请日：1989-06-23

Applicant: Edwar S. Shamshoum ,  James T. Merrill

Inventor： Edwar S. Shamshoum ,  James T. Merrill

IPC: C07C2/66 ,  C07C15/02

CPC classification number: C07C15/02 ,  C07C2/66 ,  C07C2529/08 ,  C07C2529/70

Abstract: Aromatic conversion processes employing zeolite Y, zeolite omega and zeolite beta molecular sieve catalyst. A feed stock containing at least one aromatic compound and having water entrained therein is passed to a dehydration zone. In the dehydration zone, water is removed to provide a dehydrated feed stock of a water content no more than 100 ppm, preferably 50 ppm or less. The dehydrated feed stock is then supplied to the reaction zone containing the molecular sieve catalyst selected from the group consisting of zeolite Y, zeolite omega, and zeolite beta. The reaction zone is operated at temperature and pressure conditions to maintain the reactor contents in the liquid phase and also sufficient to cause the conversion reaction to proceed in the presence of the catalyst. Specific conversion processes include the ethylation of benzene under liquid-phase conditions to produce ethylbenzene and the transalkylation of a feed stock containing a mixture of a polyalkylbenzene component and a benzene component to produce a disproportionation product comprising a monoalkylbenzene.

Abstract translation: 使用沸石Y，沸石ω和沸石β分子筛催化剂的芳香族转化方法。 含有至少一种芳族化合物并且携带有水的原料被送入脱水区。 在脱水区中，除去水，得到含水量不超过100ppm，优选为50ppm以下的脱水原料。 然后将脱水的原料供给到含有分子筛催化剂的反应区，该分子筛催化剂选自沸石Y，沸石ω和β沸石。 反应区在温度和压力条件下操作以将反应器内容物保持在液相中，并且还足以使催化剂存在下转化反应进行。 具体的转化方法包括在液相条件下苯的乙基化以制备乙苯和含有多烷基苯组分和苯组分的混合物的原料的烷基转移以产生包含单烷基苯的歧化产物。

公开(公告)号：US08524969B2

公开(公告)日：2013-09-03

申请号：US12506317

申请日：2009-07-21

Applicant: James Butler ,  Olga Khabashesku ,  James T. Merrill

Inventor： James Butler ,  Olga Khabashesku ,  James T. Merrill

IPC: C07C5/333

CPC classification number: C07C5/3332 ,  C07C2523/745 ,  C07C2523/78 ,  C07C2527/232 ,  C07C15/46 ,  C07C11/167 ,  C07C11/18 ,  C07C11/20

Abstract: A method for the dehydrogenation of hydrocarbons to alkenes, such as n-pentene to piperylene and n-butane to butadiene at pressures less than atmospheric utilizing a dehydrogenation catalyst are disclosed. Embodiments involve operating the dehydrogenation reactor at a pressure of 1,000 mbar or less.

Abstract translation: 公开了一种使用脱氢催化剂在低于大气压的压力下将烃脱氢成烯烃，例如正戊烯至戊间二烯和正丁烷至丁二烯的方法。 实施方案涉及在1000mbar或更低的压力下操作脱氢反应器。