发明申请
- 专利标题: Heavy aromatics processing
- 专利标题(中): 重芳烃加工
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申请号: US11592832申请日: 2006-11-03
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公开(公告)号: US20070055086A1公开(公告)日: 2007-03-08
- 发明人: John Buchanan , Ronald Cimini , Robert Crane , Wenyih Lai , Jose Santiesteban , David Stachelczyk , David Stern , Hye-Kyung Timken , William Weber
- 申请人: John Buchanan , Ronald Cimini , Robert Crane , Wenyih Lai , Jose Santiesteban , David Stachelczyk , David Stern , Hye-Kyung Timken , William Weber
- 主分类号: C07C15/12
- IPC分类号: C07C15/12
摘要:
In a process for converting C9+ aromatic hydrocarbons to lighter aromatic products a feed comprising C9+ aromatic hydrocarbons is contacted under transalkylation reaction conditions with a catalyst composition comprising (i) a first molecular sieve selected from the group consisting of ZSM-12, mordenite and a porous crystalline inorganic oxide material having an X-ray diffraction pattern including d-spacing maxima at 12.4±0.25, 6.9±0.15, 3.57±0.07 and 3.42±0.07; and (ii) a second molecular sieve having a constraint index ranging from 3 to 12. At least the first molecular sieve has a hydrogenation component associated therewith and the first and second molecular sieves are contained in the same catalyst bed. The C9+ aromatic hydrocarbons are converted under the transalkylation reaction conditions to a reaction product containing xylene.