Sorbent for treatment of effluent gas stream

Details Sorbent for treatment of effluent gas stream Sorbent for treatment of effluent gas stream

1993-12-09

1994-10-04

Lovering, Richard D.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Sulfur or sulfur containing component

42324401, 42324410, 252189, 252190, 252191, 252192, B01J 800, C01B 1700, C09K 300

Patent

active

053524250

ABSTRACT:
A process for producing a sulfur sorbent composition in a mixer having a mixer paddle an energy supply is disclosed which includes hydrating an alkaline earth metal oxide in an aqueous solution containing a promoting additive selected from a group consisting of urea and mixtures of urea with a water soluble iron salt under high intensity mixing conditions with the mixer wherein the mixer is operated at a mixer paddle tip velocity of at least 500 ft/min and a mixer energy input of at least 3.5 kW-h per ton of sorbent so as to produce a sulfur sorbent composition having the following physical and chemical properties: alkaline earth metal (wt. %)--40-52, molar ratio of promoting additive to alkaline earth metal--0.001-0.2, bulk density (g/ml)--0.35-0.75, surface area (m.sup.2 /g)--5-25, pore volume (cc/g)--0.05-0.14 and mean particle size (um)--4.

REFERENCES:
patent: 3761570 (1973-09-01), Lowicki et al.
patent: 4191115 (1980-03-01), Yang et al.
patent: 4731233 (1988-03-01), Thompson et al.
patent: 5270025 (1993-12-01), Ho et al.

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