公开(公告)号：US20050154242A1

公开(公告)日：2005-07-14

申请号：US10753742

申请日：2004-01-08

Applicant: Ashim Ghosh ,  Gopalakrishnan Juttu ,  Pamela Harvey

Inventor： Ashim Ghosh ,  Gopalakrishnan Juttu ,  Pamela Harvey

IPC: B01J21/00 ,  B01J29/00 ,  B01J29/064 ,  B01J29/42 ,  B01J29/46 ,  B01J37/16 ,  B01J37/18 ,  C07C2/68 ,  C07C2/86

CPC classification number: B01J29/46 ,  B01J29/064 ,  B01J29/42 ,  B01J37/16 ,  B01J37/18 ,  B01J2229/26 ,  B01J2229/42 ,  C07C2/864 ,  C07C2529/40 ,  C07C2529/44 ,  C07C2529/46 ,  Y02P20/52 ,  C07C15/08

Abstract: A catalyst for use in aromatic alkylation, such as toluene alkylation with methanol, is comprised of a zeolite with pore size from about 5.0 to about 7.0 Å containing a hydrogenating metal. The catalyst may be used in preparing an alkyl aromatic product by providing the catalyst within a reactor. The catalyst may be contacted with an aromatic hydrocarbon and an alkylating agent in the presence of hydrogen under reaction conditions suitable for aromatic alkylation. The catalyst may also be treated to further increase its stability. This is accomplished by heating the hydrogenating metal loaded zeolite catalyst in the presence of a reducing agent prior to use in an aromatic alkylation reaction to a temperature of from about 400° C. to about 500 ° C. for about 0.5 to about 10 hours.

Abstract translation: 用于芳族烷基化的催化剂，例如用甲醇进行甲苯烷基化，由含有氢化金属的孔径为约5.0至约7.0的沸石组成。 催化剂可用于通过在反应器内提供催化剂来制备烷基芳族化合物。 催化剂可以在芳烃和烷基化剂的存在下，在适合于芳族烷基化的反应条件下与氢气接触。 还可以处理催化剂以进一步提高其稳定性。 这是通过在还原剂存在下在负载芳族烷基化反应中加热加氢金属负载的沸石催化剂至约400℃至约500℃的温度进行约0.5至约10小时来完成的。