Title:
【発明の名称】最終段階においてレニウム含有触媒を用いる複数工程の改質方法
Document Type and Number:
Japanese Patent JP2003500517
Kind Code:
A
Abstract:
This is a process for upgrading a petroleum naphtha fraction. The naphtha is subjected to reforming and the reformate is cascaded to a benzene and toluene synthesis zone over a benzene and toluene synthesis catalyst comprising a molecular sieve of low acid activity. The preferred molecular sieve is steamed ZSM-5. The benzene and toluene synthesis zone is operated under conditions compatible with the conditions of the reformer such as temperatures of above about 800° F. (427° C.). In one aspect on the invention, the benzene and toluene synthesis catalyst includes a metal hydrogenation component from group VII(B), specifically rhenium. In one mode of operation, the benzene and toluene synthesis catalyst replaces at least a portion of the catalyst in the reformer. The process produces a product containing an increased proportion of benzene, toluene, and/or xylenes, and a reduced portion of alkylated aromatics, as compared to reformate.
Inventors:
Archarya, Madhuff
Beck, Jeffrey S.
Crane, Robert A. Jr.
Chester, Arthur W
Capua, Vinaya A
Caucasus, Richard Sea
Stern, David El
Beck, Jeffrey S.
Crane, Robert A. Jr.
Chester, Arthur W
Capua, Vinaya A
Caucasus, Richard Sea
Stern, David El
Application Number:
JP2000620024A
Publication Date:
January 07, 2003
Filing Date:
May 18, 2000
Export Citation:
Assignee:
MOBIL OIL CORPORATION
International Classes:
B01J29/48; B01J29/90; B01J37/10; B01J38/44; C10G35/04; C10G47/18; C10G59/02; C10G69/04; (IPC1-7): C10G69/04; B01J29/48; B01J29/90; B01J37/10; B01J38/44; C10G35/04; C10G47/18; C10G59/02
Attorney, Agent or Firm:
Yuzo Yamazaki (4 people outside)