Method for separating carbon dioxide from mixed gas

Details Method for separating carbon dioxide from mixed gas Method for separating carbon dioxide from mixed gas

1983-03-14

1986-05-06

Brody, Christopher W.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon monoxide component

502184, 502418, B01J 2118

Patent

active

045871140

ABSTRACT:
A solid form adsorbent of carbon monoxide, that is obtained by the process including the following steps. First, copper salts or copper oxide is stirred in a solvent. Then, into the solution or suspension thus obtained, active carbon is added. Finally, the solvent is removed by means of pressure reduction, distillation, etc. The carbon monoxide adsorbent produced according to this invention adsorbs carbon monoxide rapidly when it is brought into contact with a mixed gas. The adsorbed carbon monoxide can be readily separated and discharged through either heating the carbon monoxide adsorbent to above 60.degree. C. or reducing the partial pressure of carbon monoxide. The carbon monoxide obtained in accordance with the present invention is stable relative to the water content in the mixed gas, and it is capable of separating carbon monoxide directly from the mixed gas containing the water. Also, the separated carbon monoxide does not contain the vapor of the solvent from the carbon monoxide adsorbent. Therefore, it is not necessary to provide equipment to collect the solvent vapor. Furthermore, this carbon monoxide adsorbent does not produce corrosive gases, etc. The carbon monoxide adsorbent obtained by using copper (II) salts or copper (II) oxide is also stable relative to sulfur content in the mixed gas.

REFERENCES:
patent: 2528517 (1950-11-01), Hormats
patent: 2920051 (1960-01-01), Wiig
patent: 4019880 (1977-04-01), Rabo et al.
patent: 4158643 (1979-06-01), Sinha
patent: 4242226 (1980-12-01), Siren

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