Process for wet and dry gas purification, preferably for power stations and/or waste incineration plants

摘要

The application relates to a process for wet and dry gas purification, preferably for power stations and/or waste incineration plants, in which the separation of SO2 and other pollutants proceeds by their being taken up by lime, in particular fine white lime and in which, to improve the reactivity, monobasic and/or polybasic carboxylic acids are used. According to the invention, by further addition of piperazine hexahydrate and/or piperazine citrate, the amount of the carboxylic acids to be added is reduced and the chemisorption is improved both in the dry and in the wet processes.