Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – From nonhydrocarbon feed
Patent
1995-08-10
1998-04-28
Wood, Elizabeth D.
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
From nonhydrocarbon feed
585638, 585639, C07C 120
Patent
active
057446806
ABSTRACT:
A process is provided for the production of light olefins from an oxygenate feedstream. The oxygenate feedstream in the presence of a diluent is passed to a reaction zone containing a SAPO catalyst selective for the conversion of at least a portion of the feedstock into light olefins producing a reactor effluent comprising water, methane, and light olefins. The water is removed and the remaining reactor effluent is separated into a light fraction comprising methane and a light olefin stream. At least a portion of the light fraction is returned to be admixed with the feedstream as the diluent. This operation solves the problem of reducing water in the reaction zone which was found to adversely affect the activity of the catalyst.
REFERENCES:
patent: 3928483 (1975-12-01), Chang et al.
patent: 4025575 (1977-05-01), Chang et al.
patent: 4052479 (1977-10-01), Chang et al.
patent: 4440871 (1984-04-01), Lok et al.
patent: 4447669 (1984-05-01), Hamon et al.
patent: 4496786 (1985-01-01), Santilli et al.
patent: 4499314 (1985-02-01), Seddon et al.
patent: 4543435 (1985-09-01), Gould et al.
patent: 4547616 (1985-10-01), Avidan et al.
patent: 4677242 (1987-06-01), Kaiser
patent: 4677243 (1987-06-01), Kaiser
patent: 4814541 (1989-03-01), Lewis
patent: 4843183 (1989-06-01), Inui
patent: 4861938 (1989-08-01), Lewis et al.
patent: 4973792 (1990-11-01), Lewis et al.
patent: 5095163 (1992-03-01), Barger
patent: 5126308 (1992-06-01), Barger et al.
patent: 5191141 (1993-03-01), Barger et al.
Marker Terry L.
Mulvaney, III Robert C.
McBride Thomas K.
Silverman Richard P.
Tolomei John G.
UOP
Wood Elizabeth D.
LandOfFree
Process for producing light olefins does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for producing light olefins, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing light olefins will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1533509