公开(公告)号：US20060194992A1

公开(公告)日：2006-08-31

申请号：US11361817

申请日：2006-02-24

申请人： James Butler ,  Marcus Ledoux ,  Michael Betbeze

发明人： James Butler ,  Marcus Ledoux ,  Michael Betbeze

IPC分类号： C07C2/64

CPC分类号： C07C5/333 ,  C07C2529/06 ,  C07C15/46

摘要： Methods and processes for reducing alkylation catalyst poisoning are described herein. Such methods generally include contacting ethylbenzene with a dehydrogenation catalyst to form a dehydrogenation output stream within a dehydrogenation system and passing at least a portion of the dehydrogenation output stream to an alkylation system, wherein the at least a portion of the dehydrogenation output stream contacts an alkylation catalyst. The at least a portion of the dehydrogenation output stream includes a level of impurities resulting from offtest and wherein the level of impurities is sufficiently low to result in essentially no observed effect on the alkylation catalyst life in comparison with an alkylation system feed absent offtest.

摘要翻译： 本文描述了用于还原烷基化催化剂中毒的方法和方法。 这样的方法通常包括使乙苯与脱氢催化剂接触以在脱氢系统内形成脱氢输出流并将脱氢输出流的至少一部分通入烷基化系统，其中至少部分脱氢输出流接触烷基化 催化剂。 脱氢输出流的至少一部分包含由最短的杂质产生的杂质水平，并且其中杂质水平足够低以致于与烷基化系统进料相比基本上没有观察到对烷基化催化剂寿命的影响。

公开(公告)号：US20060194991A1

公开(公告)日：2006-08-31

申请号：US11326666

申请日：2006-01-07

申请人： James Butler ,  Jim Merrill ,  Marcus Ledoux ,  Michael Betbeze

发明人： James Butler ,  Jim Merrill ,  Marcus Ledoux ,  Michael Betbeze

IPC分类号： C07C2/00

CPC分类号： C07C2/66 ,  C07C6/126 ,  C07C15/073

摘要： Alkylation processes are described herein. The alkylation process generally includes contacting an input stream including benzene with an alkylation catalyst and an alkylating agent to form an alkylation output stream including ethylbenzene. The alkylation process further includes contacting at least a portion of the alkylation output stream with a transalkylation catalyst and a benzene source to form a transalkylation output stream, wherein the benzene source is selected to minimize the amount of alkylation catalyst poisons contacting the alkylation catalyst.

摘要翻译： 烷基化方法在本文中描述。 烷基化方法通常包括使包含苯的输入流与烷基化催化剂和烷基化剂接触以形成包括乙苯的烷基化输出流。 烷基化方法还包括使烷基化输出流的至少一部分与烷基转移催化剂和苯源接触以形成烷基转移输出流，其中选择苯源以使与烷基化催化剂接触的烷基化催化剂毒物的量最小化。

公开(公告)号：US20090149685A1

公开(公告)日：2009-06-11

申请号：US12327682

申请日：2008-12-03

申请人： James R. Butler ,  Marcus Ledoux ,  Michael Betbeze

发明人： James R. Butler ,  Marcus Ledoux ,  Michael Betbeze

IPC分类号： C07C2/00

CPC分类号： C07C5/333 ,  C07C2529/06 ,  C07C15/46

摘要： Methods and processes for reducing alkylation catalyst poisoning are described herein. Such methods generally include providing a dehydrogenation system including a dehydrogenation reactor and a separation system, wherein the separation system includes a first column and a second column, introducing an alkyl aromatic hydrocarbon into the dehydrogenation reactor, contacting the alkyl aromatic hydrocarbon with a dehydrogenation catalyst disposed within the dehydrogenation reactor to form a dehydrogenation output stream comprising a vinyl aromatic hydrocarbon, passing at least a portion of the dehydrogenation output stream to first column, recovering a first overhead fraction including benzene and a first bottoms fraction from the first column, passing at least a portion of the benzene from the first column to an alkylation system including an alkylation catalyst, passing the first bottoms fraction from the first column to the second column, recovering a second overhead fraction and a second bottoms fraction from the second column, withdrawing offtest from effluent streams selected from the dehydrogenation output stream, the first bottoms fraction, the second bottoms fraction and combinations thereof to form withdrawn offtest and introducing the withdrawn offtest into the separation system downstream from the first column.

摘要翻译： 本文描述了用于还原烷基化催化剂中毒的方法和方法。 这样的方法通常包括提供包括脱氢反应器和分离系统的脱氢系统，其中分离系统包括第一塔和第二塔，将烷基芳烃引入脱氢反应器中，使烷基芳族烃与脱氢催化剂接触 在脱氢反应器内以形成包含乙烯基芳族烃的脱氢输出物流，将至少一部分脱氢输出流送至第一塔，从第一塔回收包括苯和第一塔底馏分的第一塔顶馏分，至少通过 从第一塔的一部分苯到包含烷基化催化剂的烷基化体系，将第一塔底馏分从第一塔通到第二塔，从第二塔回收第二塔顶馏分和第二塔底馏分， 流出物流 选自脱氢输出流，第一塔底馏分，第二塔底馏分及其组合，以形成退出，并将排出的最后馏分引入第一塔下游的分离系统。

公开(公告)号：US07696394B2

公开(公告)日：2010-04-13

申请号：US12327682

申请日：2008-12-03

申请人： James R. Butler ,  Marcus Ledoux ,  Michael Betbeze

发明人： James R. Butler ,  Marcus Ledoux ,  Michael Betbeze

IPC分类号： C06C2/58 ,  C07C5/327

CPC分类号： C07C5/333 ,  C07C2529/06 ,  C07C15/46

摘要： Methods and processes for reducing alkylation catalyst poisoning are described herein. Such methods generally include providing a dehydrogenation system including a dehydrogenation reactor and a separation system, wherein the separation system includes a first column and a second column, introducing an alkyl aromatic hydrocarbon into the dehydrogenation reactor, contacting the alkyl aromatic hydrocarbon with a dehydrogenation catalyst disposed within the dehydrogenation reactor to form a dehydrogenation output stream comprising a vinyl aromatic hydrocarbon, passing at least a portion of the dehydrogenation output stream to first column, recovering a first overhead fraction including benzene and a first bottoms fraction from the first column, passing at least a portion of the benzene from the first column to an alkylation system including an alkylation catalyst, passing the first bottoms fraction from the first column to the second column, recovering a second overhead fraction and a second bottoms fraction from the second column, withdrawing offtest from effluent streams selected from the dehydrogenation output stream, the first bottoms fraction, the second bottoms fraction and combinations thereof to form withdrawn offtest and introducing the withdrawn offtest into the separation system downstream from the first column.

摘要翻译： 本文描述了用于还原烷基化催化剂中毒的方法和方法。 这样的方法通常包括提供包括脱氢反应器和分离系统的脱氢系统，其中分离系统包括第一塔和第二塔，将烷基芳烃引入脱氢反应器中，使烷基芳族烃与脱氢催化剂接触 在脱氢反应器内以形成包含乙烯基芳族烃的脱氢输出物流，将至少一部分脱氢输出流送至第一塔，从第一塔回收包括苯和第一塔底馏分的第一塔顶馏分，至少通过 从第一塔的一部分苯到包含烷基化催化剂的烷基化体系，将第一塔底馏分从第一塔通到第二塔，从第二塔回收第二塔顶馏分和第二塔底馏分， 流出物流 选自脱氢输出流，第一塔底馏分，第二塔底馏分及其组合，以形成退出，并将排出的最后馏分引入第一塔下游的分离系统。

公开(公告)号：US20090023966A1

公开(公告)日：2009-01-22

申请号：US12243377

申请日：2008-10-01

申请人： James R. Butler ,  Jim Merrill ,  Marcus Ledoux ,  Michael Betbeze

发明人： James R. Butler ,  Jim Merrill ,  Marcus Ledoux ,  Michael Betbeze

IPC分类号： C07C2/00

CPC分类号： C07C2/66 ,  C07C6/126 ,  C07C15/073

摘要： Alkylation processes are described herein. The alkylation process generally includes contacting an input stream including benzene with an alkylation catalyst and an alkylating agent to form an alkylation output stream including ethylbenzene. The alkylation process further includes contacting at least a portion of the alkylation output stream with a transalkylation catalyst and a benzene source to form a transalkylation output stream, wherein the benzene source is selected to minimize the amount of alkylation catalyst poisons contacting the alkylation catalyst.

摘要翻译： 烷基化方法在本文中描述。 烷基化方法通常包括使包含苯的输入流与烷基化催化剂和烷基化剂接触以形成包括乙苯的烷基化输出流。 烷基化方法还包括使烷基化输出流的至少一部分与烷基转移催化剂和苯源接触以形成烷基转移输出流，其中选择苯源以使与烷基化催化剂接触的烷基化催化剂毒物的量最小化。