化工进展Issue(9)：2315-2320,6.DOI:10.3969/j.issn.1000-6613.2014.09.014
新型旋转填料床强化气膜控制传质过程
Intensification of gas-film controlled mass transfer process in a novel rotating packed bed
摘要
Abstract
A novel rotating packed bed (RPB) with the rotor consisting of nested packing rings is a new efficient apparatus for intensifying the gas-film controlled mass transfer process,and is used in the processes of absorption,distillation and purification for low concentration of industrial gas,which are controlled by gas-film mass transfer resistance. The mass transfer characteristics of the novel RPB were studied experimentally,interfacial area (a) was determined by chemical absorption with CO2-NaOH system and gas volumetric mass-transfer coefficient (kya) was measured by physical absorption with NH3-H2O system under different gas flux,liquid-gas ratio and super gravity factor conditions,and gas mass-transfer coefficient (ky) was obtained. The results showed that a,kya and ky increased with the increase of gas flux,liquid-gas ratio and super gravity factor. The kya of the novel RPB was two times higher compared to that of a conventional rotating packed bed under the same operational conditions. Based on the experimental data,the empirical equations of a,kya and ky were developed.关键词
新型旋转填料床/气膜控制/气相传质系数/传质Key words
novel rotating packed bed/gas-film controlled/gas mass-transfer coefficient/mass transfer分类
化学化工引用本文复制引用
谷德银,刘有智,祁贵生,师小杰..新型旋转填料床强化气膜控制传质过程[J].化工进展,2014,(9):2315-2320,6.基金项目
国家自然科学基金项目（21376229、21206153）。 （）
