Method for the direct conversion of a charge containing...

Details Method for the direct conversion of a charge containing... Method for the direct conversion of a charge containing...

2004-09-02

2009-08-25

Bullock, In Suk (Department: 1797)

Chemistry of hydrocarbon compounds

Unsaturated compound synthesis

By c content reduction, e.g., cracking, etc.

C585S651000, C208S113000, C208S118000, C208S120010

Reexamination Certificate

active

07579513

ABSTRACT:
The invention concerns a process for producing propylene, especially from a light steam cracking and/or catalytic cracking cut, preferably comprising both butenes and pentenes, said process comprising a step for moving bed catalytic cracking with a catalyst regeneration loop. The catalyst comprises at least one zeolite with a zeolitic composition with a Si/Al ratio which is preferably less than 130.The invention can produce a high conversion with a good yield of propylene at a high space velocity, meaning that the volume of catalyst can be reduced.

REFERENCES:
patent: 6093867 (2000-07-01), Ladwig et al.
patent: 6222087 (2001-04-01), Ware et al.
patent: 7375257 (2008-05-01), Dath et al.
patent: 2003/0139636 (2003-07-01), Martens et al.
patent: 0921179 (1999-06-01), None
patent: 1195424 (2002-04-01), None
patent: 1195424 (2002-04-01), None
patent: 01/90034 (2001-11-01), None
Written Opinion for PCT/2004/002235 dated Sep. 2, 2004 (6 pages).

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