The content of sulfur in vacuum residue produced and processed by the catalytic cracking unit of a certain petrochemical company is high,causing high SO3 content in the soot,which forms H2SO4 aerosol leading to blue smoke tailing in flue gas.SNAR clean selective non-amino reduction deacidification-denitrification technology independently developed by Qingdao Huicheng Environmental Protection Technology Group Co.,Ltd.is tested.Results show that the removal rate of NOx by SNAR production process reaches 80％-95％in the high-temperature section,and there is no ammonia escape.The overall removal rate of SO3 is 60％-80％,and the blue smoke tailing situation is greatly improved.Meanwhile,there are no adverse effects such as corrosion on the production line equipment,which increases the economic benefit and environmental benefit for safe operation of the catalytic cracking unit.
维普
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