公开(公告)号：US06670517B1

公开(公告)日：2003-12-30

申请号：US09644999

申请日：2000-08-24

申请人： Jeevan Sahib Abichandani ,  Chaya Rao Venkat ,  Dominick Nicholas Mazzone

发明人： Jeevan Sahib Abichandani ,  Chaya Rao Venkat ,  Dominick Nicholas Mazzone

IPC分类号： C07C266

CPC分类号： B01J29/40 ,  B01J37/0009 ,  B01J2229/42 ,  C07C2/66 ,  C07C15/073 ,  C07C2529/40 ,  C07C15/02

摘要： A process for alkylating aromatics is provided which comprises contacting an aromatic-containing feed with alkylating agent in the presence of a silica-bound ZSM-5 zeolite catalyst, wherein the ZSM-5 has a crystal size no greater than 0.05 micron, said contacting being conducted under alkylating conditions to provide a product containing a monoalkylated aromatic fraction and a polyalkylated aromatic fraction, wherein the polyalkylated aromatic fraction contains at least 40 wt. % of the para-dialkylaromatic species. The polyalkylated aromatic fraction may be contacted with unsubstituted aromatic and a transalkylation catalyst under transalkylating conditions to provide a mono-alkylated aromatic-rich stream, e.g., an ethylbenzene-rich stream.

摘要翻译： 提供了芳族化合物烷基化方法，该方法包括在二氧化硅结合的ZSM-5沸石催化剂存在下使含芳族物的进料与烷基化剂接触，其中ZSM-5的晶体尺寸不大于0.05微米，所述接触是 在烷基化条件下进行，以提供含有单烷基化芳族馏分和多烷基化芳族馏分的产物，其中多烷基化芳族馏分含有至少40wt。 ％的对二烷基芳族物质。 多烷基化芳族部分可以在非烷基化条件下与未取代的芳族化合物和烷基转移催化剂接触，以提供单烷基化芳族化合物流，例如富含乙苯的流。

公开(公告)号：US06617482B1

公开(公告)日：2003-09-09

申请号：US09639555

申请日：2000-08-16

申请人： Chaya Rao Venkat ,  Yun-Yang Huang ,  Thomas Francis Degnan, Jr. ,  John Paul McWilliams ,  Ronald A. Weiss

发明人： Chaya Rao Venkat ,  Yun-Yang Huang ,  Thomas Francis Degnan, Jr. ,  John Paul McWilliams ,  Ronald A. Weiss

IPC分类号： C07C266

CPC分类号： C07C15/02 ,  C07C7/13 ,  C07C2529/70 ,  C07C15/00

摘要： A process is described for removing polar compounds from an aromatic feedstock which contains polar compounds and which is then used in an alkylation process. The process comprises contacting the feedstock in an adsorption zone at a temperature of less than or equal to 130° C. with an adsorbent selective for the adsorption of said polar compounds and comprising a molecular sieve having pores and/or surface cavities with cross-sectional dimensions greater than 5.6 Angstroms. A treated feedstock substantially free of said polar compounds is withdrawn from the adsorption zone and fed to an alkylation zone for contact under liquid phase alkylation conditions with an alkylating agent in the presence of an alkylation catalyst.

摘要翻译： 描述了从含有极性化合物的芳族原料中除去极性化合物的方法，然后将其用于烷基化方法。 该方法包括使原料在小于或等于130℃的吸附区中与选择性吸附所述极性化合物的吸附剂接触，并且包含具有孔和/或表面空腔的分子筛，其横截面 尺寸大于5.6埃。 基本上不含所述极性化合物的经处理的原料从吸附区排出，并在烷基化催化剂存在下，用烷基化剂在液相烷基化条件下进料至烷基化区进行接触。