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Processes and problems of ammonia elimination

Journal Article:

Abstract

In many cases a conversion of ammonia in coke oven gases to ammonium sulfate (fertilizer) is not useful. It must then be eliminated by oxidation to nitrogen and water or catalytically to N2 and hydrogen. Several processes are available for this which are combined with the simultaneous removal of hydrogen sulfide. The absorption of NH3 with NH3 incineration with and without heat utilization, the NH3 absorption with catalytic cracking of NH3, H2S and NH3 scrubbing with NH3 incineration and production of sulfuric acid (78 or 96 percent), as well as H2S and NH3 scrubbing with catalytic cracking of NH3 and production of pure sulfur are discussed in great detail. A cost comparison of these methods is provided. Lowest investments are required for an NH3 scrubbing process with elimination of NH3 but without desulfurization. Expenditures for an NH3 scrubber with desulfurization of the coke oven gas to about 1.5 g H2S/cu m and NH3 incineration with production of 78 percent H2SO4 are lower than those for the production of 96 percent H2SO4. For the latter there is more demand, however. Desulfurization to about 0.7 g H2S/cu m is only slightly more expensive. The process producing sulfur in combination with an H2S  More>>
Authors:
Publication Date:
Jan 01, 1974
Product Type:
Journal Article
Reference Number:
EDB-76-084726
Resource Relation:
Journal Name: Chem.-Ing.-Tech.; (Germany, Federal Republic of); Journal Volume: 46:15
Subject:
01 COAL, LIGNITE, AND PEAT; AMMONIA; REMOVAL; COAL GAS; DESULFURIZATION; HYDROGEN SULFIDES; SULFUR; RECOVERY; COKE OVENS; COMPARATIVE EVALUATIONS; CHALCOGENIDES; CHEMICAL REACTIONS; ELEMENTS; FLUIDS; GASES; HYDRIDES; HYDROGEN COMPOUNDS; NITROGEN COMPOUNDS; NITROGEN HYDRIDES; NONMETALS; SULFIDES; SULFUR COMPOUNDS; 010800* - Coal, Lignite, & Peat- Waste Management
OSTI ID:
7266355
Country of Origin:
Germany
Language:
German
Other Identifying Numbers:
Journal ID: CODEN: CITEA
Submitting Site:
APA
Size:
Pages: 628-635
Announcement Date:

Journal Article:

Citation Formats

Tippmer, K. Processes and problems of ammonia elimination. Germany: N. p., 1974. Web.
Tippmer, K. Processes and problems of ammonia elimination. Germany.
Tippmer, K. 1974. "Processes and problems of ammonia elimination." Germany.
@misc{etde_7266355,
title = {Processes and problems of ammonia elimination}
author = {Tippmer, K}
abstractNote = {In many cases a conversion of ammonia in coke oven gases to ammonium sulfate (fertilizer) is not useful. It must then be eliminated by oxidation to nitrogen and water or catalytically to N2 and hydrogen. Several processes are available for this which are combined with the simultaneous removal of hydrogen sulfide. The absorption of NH3 with NH3 incineration with and without heat utilization, the NH3 absorption with catalytic cracking of NH3, H2S and NH3 scrubbing with NH3 incineration and production of sulfuric acid (78 or 96 percent), as well as H2S and NH3 scrubbing with catalytic cracking of NH3 and production of pure sulfur are discussed in great detail. A cost comparison of these methods is provided. Lowest investments are required for an NH3 scrubbing process with elimination of NH3 but without desulfurization. Expenditures for an NH3 scrubber with desulfurization of the coke oven gas to about 1.5 g H2S/cu m and NH3 incineration with production of 78 percent H2SO4 are lower than those for the production of 96 percent H2SO4. For the latter there is more demand, however. Desulfurization to about 0.7 g H2S/cu m is only slightly more expensive. The process producing sulfur in combination with an H2S oxidation method requires somewhat lower investment costs.}
journal = {Chem.-Ing.-Tech.; (Germany, Federal Republic of)}
volume = {46:15}
journal type = {AC}
place = {Germany}
year = {1974}
month = {Jan}
}