公开(公告)号：US20040049093A1

公开(公告)日：2004-03-11

申请号：US09801558

申请日：2001-03-08

Applicant: Phillips Petroleum Company

Inventor： Tin-Tack Peter Cheung ,  Steven A. Owen ,  Marvin M. Johnson ,  Mark E. Lashier

IPC: C07C007/00

CPC classification number: C10G69/00 ,  C07C2/02 ,  C07C2603/68 ,  C10G65/06 ,  C10G69/126 ,  C07C13/61

Abstract: A hydrocarbon feedstock containing C5 olefins, C5 diolefins, CPD, DCPD, and aromatics is processed by the steps of heating a hydrocarbon feedstock containing CPD, DCPD, C5 diolefins, benzene, toluene, and xylene in a heating zone, to dimerize CPD to DCPD, thereby forming a first effluent; separating the first effluent into a C6null stream and a C5 diolefin stream; separating the C6null stream into a C6-C9 stream and a C10null stream; separating the C10null stream into a fuel oil stream and a DCPD stream; and hydrotreating the C6-C9 stream to thereby form a BTX stream. In an alternate embodiment, the hydrocarbon feedstock is processed by the steps of heating the hydrocarbon feedstock in a heating zone, to dimerize CPD to DCPD, thereby forming a first effluent; separating the first effluent into a C5-C9 stream and a C10null stream; separating the C10null stream into a fuel oil stream and a DCPD stream; contacting the C5-C9 stream with a selective hydrogenation catalyst, in a first reaction zone and in the presence of hydrogen, to hydrogenate at least a portion of the diolefins, alkynes, and styrene contained in the C5-C9 stream, thereby forming a second effluent; separating the second effluent into a C6-C9 stream and a C5 olefin stream; and contacting the C6-C9 stream with a hydrodesulfurization catalyst, in a second reaction zone and in the presence of hydrogen, to desulfurize at least a portion of the sulfur-containing compounds contained in the C6-C9 stream thereby forming a BTX stream.

Abstract translation: 通过在加热区中加热含有CPD，DCPD，C5二烯烃，苯，甲苯和二甲苯的烃原料以将CPD二聚化为DCPD的步骤来处理含有C5烯烃，C5二烯烃，CPD，DCPD和芳族化合物的烃原料 从而形成第一流出物; 将第一流出物分离成C6 +流和C5二烯烃流; 将C6 +流分离成C6-C9流和C10 +流; 将C10 +流分离成燃料油流和DCPD流; 并加氢处理C6-C9流，从而形成BTX流。 在替代实施方案中，烃原料通过以下步骤加工：在加热区中加热烃原料，将CPD二聚到DCPD，由此形成第一流出物; 将第一流出物分离成C5-C9流和C10 +流; 将C10 +流分离成燃料油流和DCPD流; 在第一反应区和氢的存在下，将C5-C9流与选择性氢化催化剂接触，氢化C5-C9流中所含的二烯烃，炔烃和苯乙烯的至少一部分，从而形成第二 流出物 将第二流出物分离成C6-C9流和C5烯烃流; 并在第二反应区和氢气存在下使C6-C9流与加氢脱硫催化剂接触，以将C6-C9流中至少一部分含硫化合物脱硫，从而形成BTX流。