Selective separation of sulfur oxides from carbon dioxide in an

Details Selective separation of sulfur oxides from carbon dioxide in an Selective separation of sulfur oxides from carbon dioxide in an

1975-11-20

1978-01-31

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

423228, 423235, B01D 5334

Patent

active

040716023

ABSTRACT:
A method for selectively separating sulfur oxides from carbon dioxide in an effluent gas stream by contacting the stream with solutions of alkanolamines at from 200.degree.-230.degree. F. At these temperatures the carbon dioxide is not absorbed to any degree by the alkanolamine while the sulfur oxides are quantitatively reacted. The spent alkanolamines are regenerated through the use of a weak base ion exchange resin in a cyclic process.

REFERENCES:
patent: 2797188 (1957-06-01), Taylor, Jr. et al.
patent: 3873673 (1975-03-01), Teague et al.
patent: 3904735 (1975-09-01), Atwood et al.

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