Process and amine-solvent absorbent for removing acidic gases fr

Details Process and amine-solvent absorbent for removing acidic gases fr Process and amine-solvent absorbent for removing acidic gases fr

1978-05-30

1980-12-23

Padgett, Benjamin R.

Compositions

Co, s, negative element, or acid, bindant containing

252190, 423226, 423228, 423243, C09K 300

Patent

active

042409233

ABSTRACT:
Acidic gases are substantially removed from a normally gaseous mixture by a process comprising contacting the normally gaseous mixture with an amine-solvent liquid absorbent comprising (i) an amine comprised of at least about 50 mol % of a sterically hindered amine, and (ii) a solvent for said amine mixture which is also a physical absorbent for said acidic gases. The liquid absorbent may also include up to about 35 weight percent water.

REFERENCES:
patent: 1783901 (1930-12-01), Bottoms
patent: 2139122 (1938-12-01), Hass et al.
patent: 2139124 (1938-12-01), Hass et al.
patent: 3637345 (1972-01-01), Leder
patent: 3856921 (1974-12-01), Shrier et al.
Shrier, "CO.sub.2 Absorption Amine-Promoter Potash Solutions," Ind. & Eng. Chem. Fundamentals, vol. 8, pp. 415-423. _
Dankwerts and Shauna, "The Chemical Engineer", Oct., 1966, pp. 244-280.

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