化工学报2012，Vol.63Issue(4)：1102-1107,6.DOI:10.3969/j.issn.0438-1157.2012.04.017
规整填料塔中氨水吸收CO2的体积总传质系数
Volumetric overall mass transfer coefficients of CO2 absorption into aqua ammonia in structured packed column
摘要
Abstract
By far, the emission of CO2 has become a key challenge for the sustainable development in the world. Amongst the CO2 capture techniques, post-combustion decarbonization, which bases on the mature state of art of chemical solvent absorption process, is currently the only one that has access to the industrial test. And aqua ammonia, as a new, alternative absorbent, has attracted much attention in recent years. In this study, the gas phase volumetric overall mass transfer coefficients of dilute CO2 absorption into aqueous ammonia (Kgae) were measured to explore the mass-transfer performance in a structured packed column. The Kga, value was evaluated over the ranges of main operating variables: gas flow rate, CO2 partial pressure, liquid loading, and ammonia concentration. The results show that higher liquid loading of aqueous ammonia is beneficial to enhance the Kgae value. On the contrary, Kgae decreases as the CO2 partial pressure increases. Gas loading has little influence on Kgac. The experimental results are useful to guide the future work on the packed column design.关键词
氨水/二氧化碳/吸收/规整填料/体积总传质系数Key words
aqua ammonia/ carbon dioxide/ absorption/ structured packing/ volumetric overall mass transfer coefficient分类
化学化工引用本文复制引用
唐忠利,赵行健,刘伯潭,刘春江,陈涛,袁希钢..规整填料塔中氨水吸收CO2的体积总传质系数[J].化工学报,2012,63(4):1102-1107,6.基金项目
国家高技术研究发展计划项目(2008AA062301) （2008AA062301）
天津市自然科学基金项目(10JCYBJC06200). （10JCYBJC06200）
