Liquid nitrogen wash tail gas catalytic combustion system and method

The invention provides a liquid nitrogen wash tail gas catalytic combustion system and method, and belongs to the technical field of tail gas treatment and energy recovery. The heat exchange boiler is used for recycling heat in second smoke generated by the second anoxic combustion tower (3), water...

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Bibliographic Details
Main Authors CUI SIHAN, ZHANG QIULIN, XU HANJIE, ZHENG YIZE, WU BO, YU ZIXIA, LIU JUNYU
Format Patent
LanguageChinese
English
Published 08.11.2022
Subjects
BLASTING
COMBUSTION APPARATUS
COMBUSTION PROCESSES
CONSUMING WASTE PRODUCTS BY COMBUSTION
CREMATION FURNACES
HEATING
LIGHTING
MECHANICAL ENGINEERING
METHODS OF STEAM GENERATION
STEAM BOILERS
STEAM GENERATION
WEAPONS
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Summary:The invention provides a liquid nitrogen wash tail gas catalytic combustion system and method, and belongs to the technical field of tail gas treatment and energy recovery. The heat exchange boiler is used for recycling heat in second smoke generated by the second anoxic combustion tower (3), water in the waste heat boiler (4) is converted into steam, third smoke obtained by the oxygen-enriched combustion tower (5) is used for supplying heat to the coal mill (7), and sufficient recycling of the heat is achieved. The standby oxygen-deficient combustion tower (8) is arranged and can serve as a standby tower of the first oxygen-deficient combustion tower (2) or the second oxygen-deficient combustion tower (3), when carbon removal or catalyst replacement is needed, overall shutdown of the system can be avoided, catalyst regeneration after carbon deposition can be easily achieved, and the production efficiency is improved. Meanwhile, the process can use a non-noble metal catalyst to replace a noble metal catalyst
Bibliography:Application Number: CN202110491173