Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1994-10-28
1996-06-04
Lone, Werren
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
518702, 518713, 518724, 518725, C07C 2700
Patent
active
055233260
ABSTRACT:
A process is disclosed for the production of methanol from a synthesis gas stream comprising hydrogen and carbon dioxide in which an equilibrium reaction to methanol is achieved by conducting the reaction and the product separation in a pressure swing adsorption and reaction zone containing a uniformly distributed adsorbent for the selective adsorption of methanol and a catalyst for the equilibrium conversion of the synthesis gas to methanol. More specifically, the process achieves the production of methanol by the reaction of the hydrogen and the carbon oxide with the simultaneous adsorption of the product at the same temperature and pressure. The passing of the synthesis stream to the bed is terminated and the bed is purged and depressurized to desorb the methanol product. In one embodiment, the bed is cocurrently purged with at least a portion of an effluent stream prior to depressurizing the bed. In further embodiments, the pressure swing adsorption and reaction zone is employed in a methanol synthesis loop both with and without a secondary reforming step to provide a lean synthesis gas with a stoichiometric ratio of carbon to hydrogen. The use of the pressure swing adsorption and reaction zone results in a higher conversion of the synthesis gas to methanol and significantly reduces the capital and operation costs in the production of methanol by reducing compressor requirements.
REFERENCES:
patent: 3176444 (1965-04-01), Kazuo Kiyonaga
patent: 3430418 (1969-03-01), Wagner
patent: 3703068 (1972-11-01), Wagner
patent: 3986849 (1976-10-01), Fuderer et al.
patent: 4731387 (1988-03-01), Westerterp
patent: 4968722 (1990-11-01), Westerterp
patent: 5254368 (1993-10-01), Kadlec et al.
patent: 5348707 (1994-09-01), Harandi et al.
Alpay E., et al. "Combined Reaction and Separation in Pressure Swing Processes" presented at the International Symposium on Chemical Reaction Engineering, Baltimore, Maryland, Sep. 25-28, 1994.
Cheng, Wu-Hsung and Kung, Harold H., editors, "Methanol Production and Use", New York, Marcel Dekker, Inc., 1994, pp. 51-73.
Kirby, N. F. and Morgan, J.E.P., "A Theorectical Investigation of Pressure Swing Reaction," Transactions of Industrial Chemical Engineering, vol. 72, Part A, Jul. 1994, pp.541-550.
Dandekar Hemant W.
Funk Gregory A.
Maurer Richard T.
Swift John D.
Lone Werren
McBride Thomas K.
Silverman Richard P.
Tolomei John G.
UOP
LandOfFree
PSA process with reaction for reversible reactions does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with PSA process with reaction for reversible reactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and PSA process with reaction for reversible reactions will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-383695