Abstract
Abstract In this paper, we present an experimental study on the effect of soluble surface active agents (SAA) on the exothermic absorption removal of gaseous pollutants with chemical reactions. Ammonia is absorbed into sulfuric acid solution, and isopropyl alcohol (IPA) is introduced as the soluble SAA in either the gas or in the absorbent liquid. Both the ammonia absorption rate and the surface temperature change are measured to examine the effect of soluble IPA impurities on chemical absorption systems employing a sulfuric acid solution. The results show that the soluble IPA impurities obviously affect the ammonia absorption rate. The soluble impurities of IPA tend to reduce the absorption rate and the surface temperature rise of chemical absorption, in both the cases where there are impurities in the gas flow and in the absorbent liquid. These findings are qualitatively similar to those of physical absorption system with impurities in the gas flow, but are different from those of physical absorption wi...
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