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Removal of sulfur and nitrogen oxides from stack gases by ammonia.

Authors
Shale-CC; Simpson-DG; Lewis-PS
Source
Chem Eng Prog Symp Ser 1971 Jan; 67(115):52-58
Link
NIOSHTIC No.
10010318
Abstract
Complete removal of sulfur dioxide and partial removal of nitrogen dioxide impurities from a simulated stack gas mixture were effected in laboratory experiments by vapor-phase reaction with ammonia. A cyclic process utilizing ammonia involves recovery of the chemical reaction products by condensation and regeneration of the feeds by thermal decomposition and reaction of acidic constituents with zinc oxide. Ammonia is separated for recycle, and essentially pure sulfur dioxide is recovered as a byproduct. Ash particles not removed by mechanical separation are trapped in the condensate. A flow diagram for commercial application of this conceptual process is discussed.
CODEN
CEPSAB
Publication Date
19710101
Document Type
OP; Journal Article
Fiscal Year
1971
NTIS Accession No.
NTIS Price
Identifying No.
OP 27-72
Issue of Publication
115
ISSN
0069-2948
NIOSH Division
MERC
Source Name
Chemical Engineering Progress: Symposium Series
State
WV
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