Refrigeration – Processes – Circulating external gas
Patent
1993-03-30
1994-10-04
Capossela, Ronald C.
Refrigeration
Processes
Circulating external gas
62 38, F25J 300
Patent
active
053514912
ABSTRACT:
An improvement in a process for the production of high-purity hydrogen and high-purity carbon monoxide by the separation of an extensively dry and CO.sub.2 -free H.sub.2 /CO crude gas mixture, also containing methane, by means of pressure swing adsorption and one-stage partial condensation, wherein, the H.sub.2 /CO crude gas mixture is subjected to a pressure swing adsorption process, producing a high-purity hydrogen product stream, while the CO-rich gas obtained in the regeneration during the pressure swing adsorption process is compressed, cooled, at least partially condensed, and conducted into a phase separator wherein it is separated into a gaseous H.sub.2 -rich fraction and a liquid CO-rich fraction, whereupon the gaseous H.sub.2 -rich fraction is heated and admixed to the H.sub.2 /CO crude gas mixture before the latter is fed into the pressure swing adsorption. The improvement is that at least a portion of the liquid CO-rich fraction from the phase separator is at least partially expanded, heated, and conducted into the lower region of a double distillation column having an upper and lower region, a liquid methane fraction being withdrawn from the bottom of the column, a liquid high-purity carbon monoxide product fraction being withdrawn from the lower part of the upper region of the column, and a gaseous CO-rich fraction being withdrawn from the head of the column.
REFERENCES:
patent: 2844944 (1958-07-01), Becker
patent: 2973628 (1961-03-01), Green et al.
patent: 3813889 (1974-06-01), Allam et al.
patent: 4217759 (1980-08-01), Shenoy
patent: 4311496 (1982-01-01), Fabian
patent: 4478621 (1984-10-01), Fabian
patent: 4564816 (1986-02-01), Batta
patent: 4566886 (1986-01-01), Fabian
patent: 4608069 (1986-08-01), Becker et al.
patent: 5133793 (1992-07-01), Billy
Berninger, Ralph, "Linde Reports on Science and Technology", No. 44, 1988, pp. 18-23.
Capossela Ronald C.
Linde Aktiengesellschaft
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