Chemistry: fischer-tropsch processes; or purification or recover – With preliminary reaction to form hydrogen or a carbon oxide – Water utilized in the preliminary reaction
Patent
1989-09-16
1992-01-07
Mars, Howard T.
Chemistry: fischer-tropsch processes; or purification or recover
With preliminary reaction to form hydrogen or a carbon oxide
Water utilized in the preliminary reaction
518705, 518713, 518728, C07C 2706
Patent
active
050792679
ABSTRACT:
A process for production of methanol from process gas produced by steam reforming hydrocarbon feedstocks in a tube type reformer followed by removing substantially all CO.sub.2 and H.sub.2 O from the process gas, adjusting the H.sub.2 /CO molar ratio to about 2 when necessary, and feeding the adjusted process gas to a methanol synthesis reactor contacting a methanol forming catalyst not requiring CO.sub.2 activation at about 200.degree. to about 300.degree. C. to produce product gas comprising methanol, and recovering liquid methanol having purity greater than about 99.85% pure by cooling the product gas to a temperature below the boiling point of methanol and separating the liquid methanol from gaseous components of the product gas. In a preferred embodiment, process gas of H.sub.2 /CO molar ratio of about 2.0 to about 2.5 is passed through an annular thermal exchange volume between a center plug and an inner tube followed by passing the gas in contact with a catalyst in a catalyst bed between the inner tube and an outer tube of a double tube reactor assembly promoting the direct reaction of H.sub.2 and CO to product methanol. An improved double tube reactor having a plurality of inner and outer tube assemblies each of the assemblies having a reaction annular volume between the inner tube and outer tube and a closed center plug within the inner tube forming an annular thermal exchange volume between the center plug and the inner tube.
REFERENCES:
patent: 3501516 (1968-11-01), Parrish
patent: 3962300 (1976-06-01), Hiller et al.
patent: 3993457 (1976-11-01), Cahn et al.
patent: 4013454 (1977-03-01), Jordan
patent: 4048250 (1977-09-01), Garwood et al.
patent: 4122110 (1978-10-01), Sugier et al.
patent: 4219492 (1980-08-01), Konoki et al.
patent: 4271086 (1981-06-01), Supp et al.
patent: 4348487 (1982-09-01), Goldstein et al.
patent: 4559207 (1985-12-01), Hiller et al.
patent: 4650814 (1987-03-01), Keller
patent: 4910228 (1990-03-01), Lywood
patent: 5477206 (1983-01-01), Pinto
Monnier, J. R., Apai, G., and Hanrahan, M. J., "Effect of CO.sub.2 on the Conversion of H.sub.2 /CO to Methanol Over Copper-Chromia Catalysts", Journal of Catalysis, 88, pp. 523-525 (1984).
Monnier, J. R., and Apai, G., "Effect of Oxidation States on the Syngas Activity of Transition-Metal Oxide Catalysts", American Chemical Society, 191st National Meeting, Apr. 13-18, 1986.
Kao Richard L.
Randhava Sarabjit S.
Randhava Surjit S.
Mars Howard T.
Xytel Technologies Partnership
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