Process for recovering carbon dioxide

Details Process for recovering carbon dioxide Process for recovering carbon dioxide

2007-10-31

2011-12-20

Mayes, Melvin (Department: 1732)

Chemistry of inorganic compounds

Hydrogen or compound thereof

Elemental hydrogen

C252S373000

Reexamination Certificate

active

08080232

ABSTRACT:
In a process for obtaining CO2, desulfurized natural gas or gas which accompanies mineral oil is reformed autothermally with addition of oxygenous gas at a temperature of from 900 to 1200° C. and a pressure of from 40 to 100 bar (a) by partial catalytic oxidation to give a crude synthesis gas, and then converted catalytically to H2 and CO2at a temperature of from 75 to 110 DEG C. and a pressure of from 50 to 75 bar (a) of CO, CO2is scrubbed out of the synthesis gas obtained with methanol at a pressure of from 15 to 100 bar (a) and a temperature of from +10 to −80° C., and the absorbed CO2is recovered by decompression. A further possible use of the process consists in converting the recovered CO2to the supercritical state.

REFERENCES:
patent: 4609043 (1986-09-01), Cullick
patent: 4863707 (1989-09-01), McShea, III
patent: 6899859 (2005-05-01), Olsvik
patent: 2003/0181314 (2003-09-01), Kranz
patent: 2004/0028595 (2004-02-01), Davey et al.
patent: 2005/0271581 (2005-12-01), Meyer et al.
patent: 3132755 (1983-04-01), None
patent: 1337466 (2003-08-01), None
English Language Abstract for EP 1337466, 2003.

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