Title:
活性度および拡散の改良のための選択化分子篩触媒の高温焼成
Document Type and Number:
Japanese Patent JP4711960
Kind Code:
B2
Abstract:
A method is disclosed for modifying a catalytic molecular sieve for shape-selective hydrocarbon conversions comprises: a) selectivating said catalytic molecular sieve by contacting with a silicon-containing selectivating agent; and b) calcining the selectivated catalytic molecular sieve at high temperature calcination conditions comprising temperatures greater than 700° C., which conditions are sufficient to reduce acid activity as measured by alpha value and increase diffusion barrier of said catalytic molecular sieve as measured by the rate of 2,3-dimethylbutane uptake, as compared to the selectivated catalyst. Catalytic molecular sieves thus prepared, such as silica-bound ZSM-5, and their use in hydrocarbon conversion processes such as aromatics isomerization, e.g., xylene isomerization, ethylbenzene conversion and aromatics disproportionation, e.g., toluene disproportionation are also disclosed.
More Like This:
Inventors:
Beck, Jeffrey Scott
Bogard, William Stern
Chester, Arthur Wolin
Kennedy, Kari El
Stern, David Lawrence
Bogard, William Stern
Chester, Arthur Wolin
Kennedy, Kari El
Stern, David Lawrence
Application Number:
JP2006521066A
Publication Date:
June 29, 2011
Filing Date:
June 16, 2004
Export Citation:
Assignee:
ExxonMobil Chemical Patents, Inc.
International Classes:
B01J29/44; B01J29/04; B01J29/06; B01J29/40; B01J37/08; C07C5/27; C07C6/12; C07C15/04; C07C15/08; C10G11/05; C10G29/20; C10G45/64; C07B61/00
Foreign References:
| US6051519 |
Attorney, Agent or Firm:
Yuzo Yamazaki
Naoto Sugiyama
Shirogane Expo
Toshiaki Akamatsu
Okuko Masako
Ichiro Tasaka
Takako Hoshi
Naoto Sugiyama
Shirogane Expo
Toshiaki Akamatsu
Okuko Masako
Ichiro Tasaka
Takako Hoshi