公开(公告)号：US07608745B2

公开(公告)日：2009-10-27

申请号：US11981392

申请日：2007-10-31

Applicant: James M. Hildreth ,  Kerman Nariman Dukandar ,  Ronald M. Venner

Inventor： James M. Hildreth ,  Kerman Nariman Dukandar ,  Ronald M. Venner

IPC: C07C4/04 ,  C07C6/02 ,  C07C15/073

CPC classification number: C07C15/073 ,  C07C2/66 ,  C07C6/00 ,  C07C6/04 ,  C07C11/06 ,  C10G2400/20 ,  C10G2400/30 ,  Y02P20/127

Abstract: A process for producing propylene is provided which includes directing an ethylene stream from an ethylene reaction zone to a propylene reaction zone; directing a butene stream to the propylene reaction zone; reacting the ethylene stream with the butene stream in the propylene reaction zone to produce a propylene reaction stream; and subjecting the propylene reaction stream to a recovery operation to recover propylene. A processes is also provided for producing an alkylaromatic by directing an ethylene stream from a propylene reaction zone to an alkylaromatic reaction zone; directing an aromatic stream to the alkylaromatic reaction zone; reacting the ethylene stream with the aromatic stream in the alkylaromatic reaction zone to produce an alkylaromatic reaction stream; and subjecting the alkylaromatic reaction stream to a recovery operation to recover alkylaromatics. A process for producing propylene and an alkylaromatic is also provided.

Abstract translation: 提供一种生产丙烯的方法，其包括将乙烯流从乙烯反应区引导到丙烯反应区; 将丁烯流引导到丙烯反应区; 使乙烯流与丙烯反应区中的丁烯流反应，生成丙烯反应流; 并对丙烯反应流进行回收操作以回收丙烯。 还提供了通过将乙烯流从丙烯反应区引导到烷基芳族反应区来生产烷基芳族化合物的方法; 将芳族物流引导至烷基芳族反应区; 使所述乙烯流与所述芳族物流在所述烷基芳族反应区中反应以产生烷基芳族反应流; 并使烷基芳族反应物流进行回收操作以回收烷基芳族化合物。 还提供了生产丙烯和烷基芳族化合物的方法。

公开(公告)号：US07393988B2

公开(公告)日：2008-07-01

申请号：US11825422

申请日：2007-07-06

Applicant: James M. Hildreth ,  Kerman Nariman Dukandar ,  Ronald M. Venner

Inventor： James M. Hildreth ,  Kerman Nariman Dukandar ,  Ronald M. Venner

IPC: C07C2/64

CPC classification number: C07C15/073 ,  C07C2/64 ,  C10G2400/30

Abstract: An improvement in a process for the production of ethylbenzene from a dilute ethylene stream wherein an ethylene-containing stream derived from a cracking process is directed to an ethylene fractionator for separation of ethylene and ethane. The improvement includes providing the dilute ethylene stream by liquefying and separating out a portion of the ethylene-containing stream prior to directing the remainder of the ethylene-containing stream to the ethylene fractionator and/or by drawing off a side stream from the ethylene fractionator; and, directing the dilute ethylene stream as a feed to an alkylator for alkylation with benzene to produce ethylbenzene.

Abstract translation: 从稀乙烯流中生产乙苯的方法的改进，其中将衍生自裂化过程的含乙烯的料流引导至用于分离乙烯和乙烷的乙烯分馏器。 该改进包括在将含乙烯流的剩余部分引导到乙烯分馏器之前和/或通过从乙烯分馏器中抽出侧流来液化和分出一部分含乙烯料流来提供稀乙烯料流; 并且将稀乙烯流作为进料引导到烷基化器以用苯烷基化以产生乙苯。

公开(公告)号：US06824687B2

公开(公告)日：2004-11-30

申请号：US10300356

申请日：2002-11-20

Applicant: Sunil S. Panditrao ,  Amit Kelkar ,  Sanjeev Ram ,  Ajay Gami ,  James M. Hildreth

Inventor： Sunil S. Panditrao ,  Amit Kelkar ,  Sanjeev Ram ,  Ajay Gami ,  James M. Hildreth

IPC: B01D1100

CPC classification number: C07C37/72 ,  C02F1/26 ,  C02F2101/34 ,  C07C37/08 ,  C07C45/53 ,  Y10S210/919 ,  C07C49/08 ,  C07C39/04

Abstract: A method is provided herein for the extraction of phenol from a waste water stream. The method is used in conjunction with a process for producing acetone and phenol from cumene. The method for extracting phenol from waste water includes contacting in a countercurrent mode a phenol-containing waste water stream with a hydrocarbon stream derived from a bottoms stream from the acetone finishing column to produce a dephenolated waste water stream and a phenol-containing hydrocarbon stream. The phenol-containing hydrocarbon stream is preferably washed with an aqueous caustic solution to provide a hydrocarbon stream, which is then conveyed to the alpha-methylstyrene recovery system. Preferably the hydrocarbon stream derived from the bottoms stream of the acetone finishing column is water washed prior to contacting the phenol-containing waste water stream.

Abstract translation: 本文提供了一种从废水流中提取苯酚的方法。 该方法与从异丙苯生产丙酮和苯酚的方法结合使用。 从废水中提取苯酚的方法包括以逆流模式将含苯酚的废水流与来自丙酮整理塔的底部料流的烃流接触，以产生脱酚废水流和含苯酚的烃流。 含苯酚的烃流优选用苛性碱水溶液洗涤以提供烃流，然后将其输送至α-甲基苯乙烯回收系统。 优选地，在与含苯酚的废水流接触之前，将来自丙酮整理塔的底部料流的烃流水洗。

公开(公告)号：US07259282B2

公开(公告)日：2007-08-21

申请号：US10660065

申请日：2003-09-08

Applicant: James M. Hildreth ,  Kerman Nariman Dukandar ,  Ronald M. Venner

Inventor： James M. Hildreth ,  Kerman Nariman Dukandar ,  Ronald M. Venner

IPC: C07C2/68

CPC classification number: C07C15/073 ,  C07C2/64 ,  C10G2400/30

Abstract: An improvement in a process for the production of ethylbenzene from a dilute ethylene stream wherein an ethylene-containing stream derived from a cracking process is directed to an ethylene fractionator for separation of ethylene and ethane. The improvement includes providing the dilute ethylene stream by liquefying and separating out a portion of the ethylene-containing stream prior to directing the remainder of the ethylene-containing stream to the ethylene fractionator and/or by drawing off a side stream from the ethylene fractionator; and, directing the dilute ethylene stream as a feed to an alkylator for alkylation with benzene to produce ethylbenzene.

公开(公告)号：US20080119676A1

公开(公告)日：2008-05-22

申请号：US11981392

申请日：2007-10-31

Applicant: James M. Hildreth ,  Kerman Nariman Dukandar ,  Ronald M. Venner

Inventor： James M. Hildreth ,  Kerman Nariman Dukandar ,  Ronald M. Venner

IPC: C07C2/06

CPC classification number: C07C15/073 ,  C07C2/66 ,  C07C6/00 ,  C07C6/04 ,  C07C11/06 ,  C10G2400/20 ,  C10G2400/30 ,  Y02P20/127

Abstract: A process for producing propylene is provided which includes directing an ethylene stream from an ethylene reaction zone to a propylene reaction zone; directing a butene stream to the propylene reaction zone; reacting the ethylene stream with the butene stream in the propylene reaction zone to produce a propylene reaction stream; and subjecting the propylene reaction stream to a recovery operation to recover propylene. A processes is also provided for producing an alkylaromatic by directing an ethylene stream from a propylene reaction zone to an alkylaromatic reaction zone; directing an aromatic stream to the alkylaromatic reaction zone; reacting the ethylene stream with the aromatic stream in the alkylaromatic reaction zone to produce an alkylaromatic reaction stream; and subjecting the alkylaromatic reaction stream to a recovery operation to recover alkylaromatics. A process for producing propylene and an alkylaromatic is also provided.

Abstract translation: 提供一种生产丙烯的方法，其包括将乙烯流从乙烯反应区引导到丙烯反应区; 将丁烯流引导到丙烯反应区; 使乙烯流与丙烯反应区中的丁烯流反应，生成丙烯反应流; 并对丙烯反应流进行回收操作以回收丙烯。 还提供了通过将乙烯流从丙烯反应区引导到烷基芳族反应区来生产烷基芳族化合物的方法; 将芳族物流引导至烷基芳族反应区; 使所述乙烯流与所述芳族物流在所述烷基芳族反应区中反应以产生烷基芳族反应流; 并使烷基芳族反应物流进行回收操作以回收烷基芳族化合物。 还提供了生产丙烯和烷基芳族化合物的方法。

公开(公告)号：US5905178A

公开(公告)日：1999-05-18

申请号：US063204

申请日：1998-04-20

Applicant: James M. Hildreth

Inventor： James M. Hildreth

IPC: C07C7/163 ,  C07C5/11

CPC classification number: C07C7/163 ,  Y02P20/127 ,  Y10S203/06

Abstract: A process for the removal of .alpha.-methyl styrene from admixtures with cumene by hydrogenation in a catalytic distillation hydrogenation to selectively hydrogenate the side chains and produce cumene is disclosed. The crude cumene may be the byproduct of the cumene oxidation to produce phenol. The crude cumene also contains acetone, benzene, ethyl benzene and high and low boiling carbonyls, which are either removed simultaneously with the hydrogenation/distillation or removed first followed by the selective catalytic distillation hydrogenation.

Abstract translation: 公开了一种通过在催化蒸馏氢化中通过氢化从异丙苯与异丙苯的混合物中除去α-甲基苯乙烯以选择性氢化侧链并产生枯烯的方法。 粗制枯烯可能是枯烯氧化产生苯酚的副产物。 粗制枯烯还含有丙酮，苯，乙苯和高沸点和低沸点羰基，它们在加氢/蒸馏下同时被除去或首先除去，然后进行选择性催化蒸馏氢化。