化学工程2013，Vol.41Issue(3)：25-28,49,5.DOI:10.3969/j.issn.1005-9954.2013.03.006
杂质对丙酮-水吸收过程传质效率的影响
Effect of impurities on mass transfer efficiency of acetone-water absorption
摘要
Abstract
As an important solvent, acetone is widely used in many chemical industries, thus the recycling of acetone is very important for economic and environmental considerations of these industries. However,the traditional process for recovery of acetone,i.e. activated carbon adsorption-desorption-distillation technology,is high energy consumption with less process safety and stability. Recently, great attentions are paid to retrofits of water absorption-distillation flowsheet,it shows that the impurities have great effect on the absorption efficiency and the energy consumption in subsequent distillation process. Several typical impurities including surfactant, dispersant and ammonium salt were selected and added into absorption water for investigating the effects of impurities on the absorption efficiency of acetone-water system. The experimental results show that only sodium hexametaphosphate has weak advantage for acetone absorption, and surfactant and ammonium salts have disadvantage for acetone absorption, thus maintaining water purity is very important during absorption process. Furthermore, the mechanisms of these phenomena were analyzed by using theory of inhibiting bubble coalescence, interfacial resistance or salting-out, respectively. And the experimental results are promising for industrial application.关键词
丙酮/吸收/杂质Key words
acetone/ absorption/ impurities分类
化学化工引用本文复制引用
廉磊,高前进,江燕斌..杂质对丙酮-水吸收过程传质效率的影响[J].化学工程,2013,41(3):25-28,49,5.基金项目
国家自然科学基金资助项目(21076084) （21076084）
中央高校基本科研业务费项目(2011ZZ0006) （2011ZZ0006）
