Alkanolaminium carboxylate solvents for selective SO.sub.2 absor

Details Alkanolaminium carboxylate solvents for selective SO.sub.2 absor Alkanolaminium carboxylate solvents for selective SO.sub.2 absor

1982-08-26

1984-08-14

Lovering, Richard D.

Compositions

Solvents

252184, 423243, 423575, B01F 100

Patent

active

044656149

ABSTRACT:
Aqueous solutions comprising from about 35 to about 85% by weight of an alkanolaminium carboxylate have proven to be highly efficient absorption solvents for sulfur dioxide. Such solvents preferentially absorb sulfur dioxide from the gas streams containing large quantities of carbon dioxide. The rate at which dissolved sulfur dioxide oxidizes to non-regenerable sulfate salts is significantly reduced by such solvents.

REFERENCES:
patent: 3658462 (1972-04-01), Van Scoy
patent: 3904735 (1975-09-01), Atwood et al.
patent: 4113849 (1978-09-01), Atwood
patent: 4126586 (1978-11-01), Curtis et al.
patent: 4170628 (1979-10-01), Kosseim et al.
patent: 4222993 (1980-09-01), Holter et al.
patent: 4320101 (1982-03-01), Trentham et al.

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