Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Sulfur or sulfur containing component
Patent
1977-04-21
1979-04-03
Vertiz, O. R.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Sulfur or sulfur containing component
C01B 1700
Patent
active
041477553
ABSTRACT:
Gases containing SO.sub.2 from a furnace are contacted in the scrubbing zone of a scrubber with an aqueous scrubbing medium containing Ca(OH).sub.2 whereby sulfites are formed. The Ca(OH).sub.2 additive is at least partially the Ca(OH).sub.2 sludge produced in the manufacture of acetylene from CaC.sub.2. This sludge contains constituents which retard or inhibit the oxidation of sulfite to sulfate to thereby reduce the possibility of sulfate scaling in the system.
REFERENCES:
patent: 2090143 (1937-08-01), Nonhebel et al.
patent: 2113198 (1938-04-01), Nonhebel et al.
patent: 3615199 (1971-10-01), Terrana
Gogineni Madanamohana R.
Rader Philip C.
Roczniak Wilfred R.
Berneike Richard H.
Combustion Engineering Inc.
Heller Gregory A.
Vertiz O. R.
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