Separation of acidic gas constituents from gaseous mixtures cont

Details Separation of acidic gas constituents from gaseous mixtures cont Separation of acidic gas constituents from gaseous mixtures cont

1972-03-29

1977-08-23

Thomas, Earl C.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Carbon dioxide or hydrogen sulfide component

423228, B01D 5334

Patent

active

040441008

ABSTRACT:
Acidic gas constituents are removed from a gaseous mixture by contacting the gaseous mixture with a single-phase liquid solution of a normally liquid dialkyl ether of a polyalkylene glycol and diisopropanolamine. Absorption conditions are selected to effect substantial absorption of the acidic gases while maintaining the solvent as a single-phase. The single-phase liquid solution containing absorbed acidic gases is separated from the resulting sweet gas and conducted to a stripping zone wherein the solution is subjected to conditions to effect removal of absorbed gas therefrom. The resulting stripped single-phase solution can be recycled for further contacting with gaseous mixtures containing acidic gases.

REFERENCES:
patent: 2139375 (1938-12-01), Millar et al.
patent: 2600328 (1952-06-01), Riesenfeld et al.
patent: 3266866 (1966-08-01), Bally et al.
patent: 3347621 (1967-10-01), Papadopoulos et al.

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