Method and apparatus for decomposing ammonia fumes having a high hydrogen sulfide content
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United States of America Patent
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-
Jan 1, 1980
Issued Date -
N/A
app pub date -
Jun 16, 1978
filing date -
Apr 24, 1976
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of decomposing ammonia fumes which have a high hydrogen sulfide content, in particular, deacidizer fumes from an NH.sub.3 --H.sub.2 S closed-circuit scrubber of coke oven gases, in which the washed-out NH.sub.2 is enriched. The inventive method comprises burning a heating fuel with an amount of oxygen to generate combustion gases having a low oxygen content, heating the deacidizer fumes by direct contact with the combustion gases in order to form a hot mixture of the gases and deacidizer fumes and subsequently directing the hot mixture through a decomposition zone. In addition the ammonia fumes are directed in an annular jacket around the housing to an annular discharge at the periphery of the coke oven gas flame.
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