Alkaline-earth based sorbent for removing effluent from a gas st

Details Alkaline-earth based sorbent for removing effluent from a gas st Alkaline-earth based sorbent for removing effluent from a gas st

1992-06-12

1994-05-03

Lovering, Richard D.

Compositions

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

252190, 252191, 252192, C09K 300

Patent

active

053085345

ABSTRACT:
The present invention relates to an improved sorbent for use in removing effluents such as sulfur dioxide from combustion gas streams. The sorbent comprises a hydroxide formed from an alkaline-earth based material such as lime and having incorporated therein an iron and organic compound promotion addition to enhance its ability to remove effluents from the gas stream. The sorbent is formed by co-dissolving an iron salt and an organic compound in a hydration solution and thereafter mixing the hydration solution containing the iron salt and the organic compound with an alkaline-earth based material. The sorbent thus produced may be injected into a gas stream in either dry or slurry form to remove the effluents.

REFERENCES:
patent: 4191115 (1980-03-01), Yang et al.
patent: 4424197 (1984-01-01), Powell et al.
patent: 4626418 (1986-12-01), College et al.
patent: 4795586 (1989-01-01), Thompson et al.
patent: 5096691 (1992-03-01), Bedell

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