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Process to wash acid components out of waste gases - by absorption with washing fluid passed briefly through two packed vessels through which smoke rises
Process to wash acid components out of waste gases - by absorption with washing fluid passed briefly through two packed vessels through which smoke rises
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机译:从废气中去除酸性成分的过程-通过吸收吸收的洗涤液短暂地流经两个装满容器的容器,烟气通过该容器
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摘要
In a process to wash acid components out of waste gases by absorption, acid is washed out following cooling by a quencher to the cooling boundary temperature. The novelty is that (a) a washing fluid is passed briefly through two packed vessels generating a coherent film of fluid on the packing surfaces, over which the smoke gases move from bottom to top; (b) the raw acid produced is washed out when the required acid concentration has been reached, by a brief rinse with a new charge of washing fluid; (c) the first packed vessel is charged ready for a new absorption cycle with fresh absorption fluid, and the rinsed out absorption fluid is used as a washing fluid in the previous stage. ADVANTAGE - The process provides a simple and low-cost means by which acids can be recovered, for example from a refuse incinerator.
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