Chemistry of hydrocarbon compounds – Plural serial diverse syntheses – To produce unsaturate
Patent
1998-04-13
2000-04-11
Griffin, Walter D.
Chemistry of hydrocarbon compounds
Plural serial diverse syntheses
To produce unsaturate
585329, 585638, 585639, 585640, C07C 100, C07C 120, C07C 406
Patent
active
060490179
ABSTRACT:
A process is disclosed for enhancing the production of light olefins with a catalytic reaction zone containing small pore zeolitic and non-zeolitic catalysts which can significantly improve the yield of ethylene and propylene in a process for the conversion of light olefins having four carbon atoms per molecule and heavier. Specifically, a C.sub.4 olefin stream from an ethylene production complex is converted in a reaction zone over a non-zeolitic catalyst at effective conditions to produce a product mixture containing ethylene and propylene. Ethylene and propylene are separated from the product mixture and recovered. A portion of the remaining heavy hydrocarbons and paraffins may be recycled to the reaction zone for further conversion, or oligomerized to produce valuable downstream products. The additional step of removing iso-olefins from the recycle stream provided significant advantages. The process of the present invention may be applied in commercial ethylene plants, in petroleum refining catalytic cracking operations, and in processes for the conversion of oxygenates such as methanol-to-olefins to enhance the production of ethylene and propylene.
REFERENCES:
patent: 3928483 (1975-12-01), Chang et al.
patent: 4025575 (1977-05-01), Chang et al.
patent: 4252479 (1981-02-01), Scherfenberg
patent: 4447669 (1984-05-01), Hamon et al.
patent: 4499314 (1985-02-01), Seddon et al.
patent: 4527001 (1985-07-01), Kaiser
patent: 4861938 (1989-08-01), Lewis et al.
patent: 4973792 (1990-11-01), Lewis et al.
patent: 5026935 (1991-06-01), Leyshon et al.
patent: 5026936 (1991-06-01), Leyshon et al.
patent: 5043522 (1991-08-01), Leyshon et al.
patent: 5095163 (1992-03-01), Barger
patent: 5126308 (1992-06-01), Barger et al.
patent: 5191141 (1993-03-01), Barger et al.
patent: 5475183 (1995-12-01), Araki et al.
patent: 5523502 (1996-06-01), Rubin
patent: 5714662 (1998-02-01), Vora et al.
patent: 5744680 (1998-04-01), Mulvaney, III et al.
patent: 5817906 (1998-10-01), Marker et al.
patent: 5912393 (1999-06-01), Barger et al.
Kaiser, V. and Piciotti, M., "Better Ethylene Separation Unit" Hydrocarbon Processing Magazine, Nov. 1988, 00. 57-61.
Barger Paul T.
Marker Terry L.
Vora Bipin V.
Griffin Walter D.
McBride Thomas K.
Silverman Richard P.
Tolomei John G.
UOP LLC
LandOfFree
Enhanced light olefin production does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Enhanced light olefin production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Enhanced light olefin production will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1177903