液相传质单元数的探讨

Study on the Number of Liquid Transfer Units

导出不同情况下低浓度气体吸收、解吸时的液相传质单元数的计算公式 ,并与 Colburn传质单元数算图进行比较 .结果表明 ,除第三种情况既可式算又可图算外 。

In the design of a packed column, the number of transfer units is an important parameter. In this paper, various calculating formulas of the number of liquid transfer units are proposed in terms of absorption and desorption of low concentration gas. Compared with the Colburn′s diagram of number of transfer units, the results are of significance in industrial design.