公开(公告)号：US20050054888A1

公开(公告)日：2005-03-10

申请号：US10660065

申请日：2003-09-08

Applicant: James Hildreth ,  Kerman Dukandar ,  Ronald Venner

Inventor： James Hildreth ,  Kerman Dukandar ,  Ronald Venner

IPC: C07C2/64 ,  C07C15/073 ,  C10G57/00 ,  C07C4/00

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：US08258357B2

公开(公告)日：2012-09-04

申请号：US12410851

申请日：2009-03-25

Applicant: Kerman Dukandar ,  David Spence ,  Sunil Panditrao

Inventor： Kerman Dukandar ,  David Spence ,  Sunil Panditrao

IPC: C07C6/04 ,  C07C5/05 ,  C07C5/327

CPC classification number: C07C11/06 ,  C07C6/04 ,  Y02P20/125

Abstract: This invention relates to an integrated process for the efficient production of olefins from C4 feedstocks comprising butane and more particularly to a method of producing propylene and butadiene. The process combines a dehydrogenation unit with an olefin conversion unit to convert butane feedstock to propylene and butadiene products. The combined catadiene-OCT process produces yields of propylene from normal butane in excess of 70%.

Abstract translation: 本发明涉及一种用于从包含丁烷的C4原料有效生产烯烃的综合方法，更具体地说涉及生产丙烯和丁二烯的方法。 该方法将脱氢装置与烯烃转化装置结合，将丁烷原料转化为丙烯和丁二烯产品。 联合的二烯二氯甲烷方法可以从正丁烷产生的丙烯产率超过70％。

公开(公告)号：US20100249471A1

公开(公告)日：2010-09-30

申请号：US12410851

申请日：2009-03-25

Applicant: Kerman Dukandar ,  David Spence ,  Sunil Panditrao

Inventor： Kerman Dukandar ,  David Spence ,  Sunil Panditrao

IPC: C07C2/00 ,  B01J19/00

CPC classification number: C07C11/06 ,  C07C6/04 ,  Y02P20/125

Abstract: This invention relates to an integrated process for the efficient production of olefins from C4 feedstocks comprising butane and more particularly to a method of producing propylene and butadiene. The process combines a dehydrogenation unit with an olefin conversion unit to convert butane feedstock to propylene and butadiene products. The combined catadiene-OCT process produces yields of propylene from normal butane in excess of 70%.

Abstract translation: 本发明涉及一种用于从包含丁烷的C4原料有效生产烯烃的综合方法，更具体地说涉及生产丙烯和丁二烯的方法。 该方法将脱氢装置与烯烃转化装置结合，将丁烷原料转化为丙烯和丁二烯产品。 联合的二烯二氯甲烷方法可以从正丁烷产生的丙烯产率超过70％。

公开(公告)号：US20070255080A1

公开(公告)日：2007-11-01

申请号：US11825422

申请日：2007-07-06

Applicant: James Hildreth ,  Kerman Dukandar ,  Ronald Venner

Inventor： James Hildreth ,  Kerman Dukandar ,  Ronald Venner

IPC: C07C2/54

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。