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

1981-05-04

1982-12-14

Vertiz, O. R.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

C01B 1700

Patent

active

043637914

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: 3904735 (1975-09-01), Atwood et al.

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