-
公开(公告)号：US20080293986A1
公开(公告)日：2008-11-27
申请号：US11752528
申请日：2007-05-23
IPC分类号： C07C2/66
摘要： This cumene process involves contacting, in an alkylation zone, a first benzene recycle stream and a propylene feed stream with an alkylation catalyst to form cumene. In a transalkylation zone, a polyisopropyl benzene recycle stream and a second benzene recycle stream are contacted with a transalkylation catalyst to form additional cumene. The effluents are passed into a dividing wall distillation column. A cumene stream is removed from an intermediate point of the dividing wall fractionation column; a first benzene recycle stream is removed from a first end and a heavy aromatics stream is removed from a second end. A second benzene recycle stream is removed from an intermediate point located between the first end and the cumene stream. A polyisopropyl benzene stream is removed from an intermediate point of located between the second end and the cumene stream.
摘要翻译： 该枯烯方法包括在烷基化区中与烷基化催化剂接触第一苯再循环流和丙烯进料流以形成枯烯。 在烷基转移区中，将聚异丙基苯再循环物流和第二苯循环物流与烷基转移催化剂接触以形成额外的枯烯。 将废水排入分隔壁蒸馏塔。 从分隔壁分馏塔的中间点除去枯烯物流; 从第一端除去第一苯回收物流，并从第二端除去重质芳烃物流。 从位于第一端和异丙苯流之间的中间点除去第二苯循环物流。 从位于第二端和异丙苯流之间的中间点除去聚异丙基苯物流。
-
公开(公告)号：US20080293985A1
公开(公告)日：2008-11-27
申请号：US11752525
申请日：2007-05-23
IPC分类号： C07C2/66
CPC分类号： C07C15/073 , C07C2/66 , C07C6/126
摘要： This ethylbenzene process involves contacting, in an alkylation zone, a first benzene recycle stream and an ethylene feed stream with an alkylation catalyst to form ethylbenzene. In a transalkylation zone, a polyethylbenzene recycle stream and a second benzene recycle stream are contacted with a transalkylation catalyst to form additional ethylbenzene. The effluents are passed into a dividing wall distillation column. An ethylbenzene stream is removed from an intermediate point of the dividing wall fractionation column; a first benzene recycle stream is removed from a first end and a flux oil stream is removed from a second end. A second benzene recycle stream is removed from an intermediate point located between the first end and the ethylbenzene stream. A polyethylbenzene stream is removed from an intermediate point of located between the second end and the ethylbenzene stream.
摘要翻译： 该乙苯方法包括在烷基化区中与烷基化催化剂接触第一苯再循环流和乙烯进料流以形成乙苯。 在烷基转移区中，将聚乙苯再循环流和第二苯再循环流与烷基转移催化剂接触以形成另外的乙苯。 将废水排入分隔壁蒸馏塔。 从分隔壁分馏塔的中间点除去乙苯料流; 从第一端除去第一苯回收物流，并从第二端除去助熔油流。 从位于第一端和乙苯料流之间的中间点除去第二苯回收物流。 从位于第二端和乙苯料流之间的中间点除去多乙基苯料流。
-
公开(公告)号：US07498471B2
公开(公告)日：2009-03-03
申请号：US11752514
申请日：2007-05-23
IPC分类号： C07C15/073 , C07C2/64
CPC分类号： C07C15/085 , C07C2/66 , C07C6/126
摘要： In an alkylation zone, a benzene recycle stream and a propylene feed stream are contacted with an alkylation catalyst to convert the propylene and benzene into cumene. In a transalkylation zone, a polyisopropylbenzene stream and a benzene recycle stream are contacted with a transalkylation catalyst to convert the polyisopropylbenzene and benzene into cumene. The alkylation and transalkylation zone effluents are passed into a dividing wall fractionation column.A cumene product stream is removed from an intermediate point of the dividing wall fractionation column. A benzene recycle stream is removed from a first end, and another benzene recycle stream is removed from an intermediate point of the dividing wall fractionation column. A polyisopropylbenzene stream is removed from a second end of the dividing wall fractionation column. The polyisopropylbenzene stream is passed to a polyisopropylbenzene fractionation column to separate the polyisopropylbenzene from a heavy ends stream.
摘要翻译： 在烷基化区中，苯再循环料流和丙烯进料流与烷基化催化剂接触以将丙烯和苯转化成异丙苯。 在烷基转移区中，将聚异丙基苯料流和苯再循环料流与烷基转移催化剂接触，将聚异丙基苯和苯转化成异丙苯。 将烷基化和烷基转移区污水进入分隔壁分馏塔。 从分隔壁分馏塔的中间点除去枯烯产物流。 从第一端除去苯循环物流，从分隔壁分馏塔的中间点除去另一苯回收物流。 从分隔壁分馏塔的第二端除去聚异丙基苯料流。 将聚异丙基苯流输送到聚异丙基苯分馏塔以将聚异丙基苯与重馏分流分离。
-
公开(公告)号：US20080293984A1
公开(公告)日：2008-11-27
申请号：US11752520
申请日：2007-05-23
IPC分类号： C07C2/66
CPC分类号： C07C15/085 , C07C2/66 , C07C6/126
摘要： This cumene process involves contacting, in an alkylation zone, a first benzene recycle stream and a propylene feed stream with an alkylation catalyst to form cumene. In a transalkylation zone, a polyisopropylbenzene recycle stream and a second benzene recycle stream are contacted with a transalkylation catalyst to form additional cumene. The effluents are passed into a benzene distillation column. From the benzene distillation column, a first benzene recycle stream is removed as overhead; a second benzene recycle stream is removed as a side draw; and a bottoms stream comprising polyisopropylbenzene, cumene, and heavy aromatics is removed from an end. The bottoms stream is passed to a dividing wall distillation column where the polyisopropylbenzene recycle stream is removed from an intermediate point; a cumene product stream is removed from a first end, and a heavy aromatic stream is removed from a second end.
摘要翻译： 该枯烯方法包括在烷基化区中与烷基化催化剂接触第一苯再循环流和丙烯进料流以形成枯烯。 在烷基转移区中，将聚异丙基苯循环物流和第二苯再循环物流与烷基转移催化剂接触以形成额外的枯烯。 将废水送入苯蒸馏塔。 从苯蒸馏塔中取出第一个苯循环物流作为塔顶馏出物; 第二个苯循环流作为侧面吸附除去; 并且从末端去除包含聚异丙基苯，枯烯和重芳烃的底部料流。 将底部物流送入分隔壁蒸馏塔，从中间点除去聚异丙苯再循环物流; 从第一端除去枯烯产物流，并从第二端除去重芳族物流。
-
公开(公告)号：US20080293983A1
公开(公告)日：2008-11-27
申请号：US11752516
申请日：2007-05-23
IPC分类号： C07C2/66
CPC分类号： C07C2/66 , C07C6/126 , C07C15/073
摘要： This ethylbenzene process involves contacting, in an alkylation zone, a first benzene recycle stream and an ethylene feed stream with an alkylation catalyst to form ethylbenzene. In a transalkylation zone, a polyethylbenzene recycle stream and a second benzene recycle stream are contacted with a transalkylation catalyst to form additional ethylbenzene. The effluents are passed into a benzene distillation column. From the benzene distillation column, a first benzene recycle stream is removed as overhead; a second benzene recycle stream is removed as a side draw; and a bottoms stream comprising polyethylbenzene, ethylbenzene, and flux oil is removed from an end. The bottoms stream is passed to a dividing wall distillation column where the polyethylbenzene recycle stream is removed from an intermediate point; an ethylbenzene product stream is removed from a first end, and a heavy oil stream is removed from a second end.
摘要翻译： 该乙苯方法包括在烷基化区中与烷基化催化剂接触第一苯再循环流和乙烯进料流以形成乙苯。 在烷基转移区中，将聚乙苯再循环流和第二苯再循环流与烷基转移催化剂接触以形成另外的乙苯。 将废水送入苯蒸馏塔。 从苯蒸馏塔中取出第一个苯循环物流作为塔顶馏出物; 第二个苯循环流作为侧面吸附除去; 从末端除去包含聚乙基苯，乙苯和助熔剂油的底部料流。 将塔底物流送入分隔壁蒸馏塔，其中从中间点除去多乙基苯循环物流; 从第一端去除乙苯产物流，并从第二端除去重油流。
-
公开(公告)号：US07498472B2
公开(公告)日：2009-03-03
申请号：US11752525
申请日：2007-05-23
IPC分类号： C07C15/073 , C07C2/64
CPC分类号： C07C15/073 , C07C2/66 , C07C6/126
摘要： This ethylbenzene process involves contacting, in an alkylation zone, a first benzene recycle stream and an ethylene feed stream with an alkylation catalyst to form ethylbenzene. In a transalkylation zone, a polyethylbenzene recycle stream and a second benzene recycle stream are contacted with a transalkylation catalyst to form additional ethylbenzene. The effluents are passed into a dividing wall distillation column. An ethylbenzene stream is removed from an intermediate point of the dividing wall fractionation column; a first benzene recycle stream is removed from a first end and a flux oil stream is removed from a second end. A second benzene recycle stream is removed from an intermediate point located between the first end and the ethylbenzene stream. A polyethylbenzene stream is removed from an intermediate point of located between the second end and the ethylbenzene stream.
摘要翻译： 该乙苯方法包括在烷基化区中与烷基化催化剂接触第一苯再循环流和乙烯进料流以形成乙苯。 在烷基转移区中，将聚乙苯再循环流和第二苯再循环流与烷基转移催化剂接触以形成另外的乙苯。 将废水排入分隔壁蒸馏塔。 从分隔壁分馏塔的中间点除去乙苯料流; 从第一端除去第一苯回收物流，并从第二端除去助熔油流。 从位于第一端和乙苯料流之间的中间点除去第二苯回收物流。 从位于第二端和乙苯料流之间的中间点除去多乙基苯料流。
-
公开(公告)号：US20080293982A1
公开(公告)日：2008-11-27
申请号：US11752514
申请日：2007-05-23
IPC分类号： C07C2/66
CPC分类号： C07C15/085 , C07C2/66 , C07C6/126
摘要： In an alkylation zone, a benzene recycle stream and a propylene feed stream are contacted with an alkylation catalyst to convert the propylene and benzene into cumene. In a transalkylation zone, a polyisopropylbenzene stream and a benzene recycle stream are contacted with a transalkylation catalyst to convert the polyisopropylbenzene and benzene into cumene. The alkylation and transalkylation zone effluents are passed into a dividing wall fractionation column.A cumene product stream is removed from an intermediate point of the dividing wall fractionation column. A benzene recycle stream is removed from a first end, and another benzene recycle stream is removed from an intermediate point of the dividing wall fractionation column. A polyisopropylbenzene stream is removed from a second end of the dividing wall fractionation column. The polyisopropylbenzene stream is passed to a polyisopropylbenzene fractionation column to separate the polyisopropylbenzene from a heavy ends stream.
摘要翻译： 在烷基化区中，苯再循环料流和丙烯进料流与烷基化催化剂接触以将丙烯和苯转化成异丙苯。 在烷基转移区中，将聚异丙基苯料流和苯再循环料流与烷基转移催化剂接触，将聚异丙基苯和苯转化成异丙苯。 将烷基化和烷基转移区污水进入分隔壁分馏塔。 从分隔壁分馏塔的中间点除去枯烯产物流。 从第一端除去苯循环物流，从分隔壁分馏塔的中间点除去另一苯回收物流。 从分隔壁分馏塔的第二端除去聚异丙基苯料流。 将聚异丙基苯流输送到聚异丙基苯分馏塔以将聚异丙基苯与重馏分流分离。
-
公开(公告)号：US20080293981A1
公开(公告)日：2008-11-27
申请号：US11752508
申请日：2007-05-23
IPC分类号： C07C2/66
CPC分类号： C07C15/073 , C07C2/66 , C07C6/126
摘要： This ethylbenzene process involves contacting, in an alkylation zone, a first benzene recycle stream and an ethylene feed stream with an alkylation catalyst to form ethylbenzene. In a transalkylation zone, a polyethylbenzene recycle stream and a second benzene recycle stream are contacted with a transalkylation catalyst to form additional ethylbenzene. The effluents are passed into a dividing wall distillation column where a benzene overhead and a benzene side draw are removed and recycled. An ethylbenzene stream product stream is also removed. The remainder, largely polyethylbenzene and tar, is passed to a polyethylbenzene column for separation. The separated polyethylbenzene is recycled to the transalkylation reactor.
摘要翻译： 该乙苯方法包括在烷基化区中与烷基化催化剂接触第一苯再循环流和乙烯进料流以形成乙苯。 在烷基转移区中，将聚乙苯再循环流和第二苯再循环流与烷基转移催化剂接触以形成另外的乙苯。 流出物被送入分离塔蒸馏塔，其中苯塔顶馏出物和苯侧馏分被除去并再循环。 还除去乙苯料流产物流。 其余的，主要是聚乙苯和焦油，被送到聚乙苯塔进行分离。 将分离的聚乙苯再循环至烷基转移反应器。
-
19.发明授权Process for separating and/or introducing a flush material in an adsorption separation system 有权用于在吸附分离系统中分离和/或引入冲洗材料的方法公开(公告)号：US08404916B1
公开(公告)日：2013-03-26
申请号：US13310954
申请日：2011-12-05
IPC分类号： C07C7/12
摘要： Embodiments of the present invention provide, for an adsorption separation system for separating normal paraffins from a hydrocarbon feed stream, a process for switching the adsorption separation from a triple split desorbent system to a dual split desorbent system, and vice versa. Switching occurs by separating and/or introducing a second flush material in the adsorption separation system. This switching can occur during normal operations.
摘要翻译： 本发明的实施方案提供了用于从烃进料流中分离正链烷烃的吸附分离系统，用于将吸附分离从三分裂解吸系统切换到双分离解吸系统，反之亦然。 通过在吸附分离系统中分离和/或引入第二冲洗材料进行切换。 这种切换可能在正常操作期间发生。
-
20.发明申请PROCESS FOR UPGRADING SWEETENED OR OXYGEN-CONTAMINATED KEROSENE OR JET FUEL, TO MINIMIZE OR ELIMINATE ITS TENDENCY TO POLYMERIZE OR FOUL WHEN HEATED 有权升级清洁或氧化污染的凯龙或喷射燃料的过程，以最小化或消除其在加热时聚合或加热的趋势公开(公告)号：US20110319698A1
公开(公告)日：2011-12-29
申请号：US13154572
申请日：2011-06-07
CPC分类号： C10G31/06 , C10G7/00 , C10G2300/1051 , C10G2300/202 , C10G2400/08
摘要： A process is presented for the removal of oxygen from a hydrocarbon stream. The oxygen can react and cause polymerization of the hydrocarbons when the hydrocarbon stream is heated. Controlling the removal of the oxygen from the hydrocarbon stream produces a hydrocarbon stream that is substantially free of oxygen and has a reduced activity for generating undesired compounds.
摘要翻译： 提出了从烃流中除去氧气的方法。 当烃流被加热时，氧可以反应并引起烃的聚合。 控制从烃流中除去氧气产生基本上不含氧气并且具有降低的活性以产生不需要的化合物的烃流。
-
-
-
-
-
-
-
-
-
搜索结果
41 条记录 (耗时 0.032 秒)
