正交配置法求CO_2和COS竞争吸收增强因子  

Calculation of the Enhancement Factor of Simultaneous Absorption of CO_2 and COS Applying the Method of Orthogonal Collocation

作　　者：沈慧英[1] 王长泰[2] 

机构地区：[1]福建师范大学化学系,福建福州350007 [2]福州大学化工系,福建福州350002

出　　处：《福建师范大学学报（自然科学版）》2000年第1期52-55,共4页Journal of Fujian Normal University：Natural Science Edition

摘　　要：用双膜理论建立了 CO2 和 COS在 N-甲基二乙醇胺水溶液中选择性吸收的传质动力学模型 ,并用正交配置法对方程组进行了数值求解 .化学吸收增强因子计算结果与文献中的实验结果对比 ,平均相对偏差小于± 1 3 %,模型与文献的计算值对比 ,平均相对偏差小于± 2 %.A mass transfer model for the selective absorption of CO 2 with aqueous methyldiethanol amine in the presence of COS is established . The model consists of a set of partial differential equations based on the film theory, which are solved numerically by the method of orthogonal collocation (OC) . The enhancement factors of absorption, calculated by OC method are compared with experimental results in the literature, the average relative deviation is less than ±13%. The results are also compared with the results calculated by shooting method in the literature, the average relative deviation is within ±2%.

关 键 词：化学吸收 正交配置法 增强因子 COS 二氧化碳 

分 类 号：TQ028.14[化学工程] O647.3[理学—物理化学]