Removing hydrogen sulfide and ammonia from gases with simultaneous recovery of elemental sulfur and ammonium sulfate. [By washing the gas with a solution containing (NH/sub 4/)/sub 2/S/sub 2/O/sub 3/ and an organic oxygen carrier, preferably hydroxybenzene]
Patent
·
OSTI ID:5316952
- Assignee:
- TIC
- Patent Number(s):
- DE 706846
- OSTI ID:
- 5316952
- Country of Publication:
- United States
- Language:
- English
Similar Records
Removal of hydrogen sulfide, ammonia, and hydrocyanic acid from gases and recovery of ammonium sulfate and sulfur. [Scrubber uses solution of (NH/sub 4/)/sub 2/S/sub 2/O/sub 3/ containing MgV, Cr, or Ce compound]
Removal of carbon dioxide and hydrogen sulfide from gases. [Gases are washed with ammoniacal solutions containing salts that react with CO/sub 2/ and (or) give sparingly soluble crystalline precipitates, e. g. , NaCl and FeSO/sub 4/; equations NH/sub 3/ + H/sub 2/S = NH/sub 4/HS, FeSO/sub 4/ + NH/sub 4/HS = FeS + (NH/sub 4/)HSO/sub 4/; NH/sub 4/HSO/sub 4/ + NH/sub 3/ = (NH/sub 4/)/sub 2/SO/sub 4/]
Removal of ammonia and hydrogen sulfide from gases containing carbon dioxide. [H/sub 2/S removed in countercurrent washer by strong ammoniacal liquor; NH/sub 3/ washed out by weak ammoniacal liquor and then by fresh H/sub 2/O]
Patent
·
Thu Feb 03 00:00:00 EST 1955
·
OSTI ID:5316952
Removal of carbon dioxide and hydrogen sulfide from gases. [Gases are washed with ammoniacal solutions containing salts that react with CO/sub 2/ and (or) give sparingly soluble crystalline precipitates, e. g. , NaCl and FeSO/sub 4/; equations NH/sub 3/ + H/sub 2/S = NH/sub 4/HS, FeSO/sub 4/ + NH/sub 4/HS = FeS + (NH/sub 4/)HSO/sub 4/; NH/sub 4/HSO/sub 4/ + NH/sub 3/ = (NH/sub 4/)/sub 2/SO/sub 4/]
Patent
·
Mon Nov 21 00:00:00 EST 1955
·
OSTI ID:5316952
Removal of ammonia and hydrogen sulfide from gases containing carbon dioxide. [H/sub 2/S removed in countercurrent washer by strong ammoniacal liquor; NH/sub 3/ washed out by weak ammoniacal liquor and then by fresh H/sub 2/O]
Patent
·
Wed Dec 24 00:00:00 EST 1958
·
OSTI ID:5316952
Related Subjects
01 COAL, LIGNITE, AND PEAT
AMMONIA
REMOVAL
GASES
PURIFICATION
HYDROGEN SULFIDES
AMMONIUM COMPOUNDS
DESULFURIZATION
PHENOL
THIOSULFATES
AROMATICS
CHALCOGENIDES
CHEMICAL REACTIONS
FLUIDS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
PHENOLS
SULFIDES
SULFUR COMPOUNDS
010402* - Coal
Lignite
& Peat- Purification & Upgrading
010500 - Coal
Lignite
& Peat- Products & By-Products
AMMONIA
REMOVAL
GASES
PURIFICATION
HYDROGEN SULFIDES
AMMONIUM COMPOUNDS
DESULFURIZATION
PHENOL
THIOSULFATES
AROMATICS
CHALCOGENIDES
CHEMICAL REACTIONS
FLUIDS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
PHENOLS
SULFIDES
SULFUR COMPOUNDS
010402* - Coal
Lignite
& Peat- Purification & Upgrading
010500 - Coal
Lignite
& Peat- Products & By-Products