Study on the Use of Hollow Fiber Membrane Module for CO2 Removal

• Main Authors: Ching-Hung Wu, 吳慶鴻
• Other Authors: Hsuan Chang
• Format: Others
• Language: zh-TW
• Published: 2005
• Online Access: http://ndltd.ncl.edu.tw/handle/20517757098570025520

碩士 === 淡江大學 === 化學工程與材料工程學系碩士班 === 93 === The performance of carbon dioxide absorption by aqueous monoethanolamine solution is investigated via both experiments and a rigorous mathematical model. Two different size microporous polyproplyene hollow fiber membrane modules are used for experiments. The rigorous mathematical model considers the complex chemical absorption mechanism, including kinetic and equilibrium reactions, and heat and mass transports. Incorporating the experimental results with the mathematical model allows the determination of the correlation for shell side mass transfer coefficient as well as the effective interfacial areas of two modules. The concept of partial wetting inside membrane cannot explain the performance of the experimental modules. The most significant operating conditions affecting the absorption efficiency are the inlet gas flow rate and absorbent temperature. The major mass transfer resistance occurs in the gas side. For the coal-fired and natural gas-fired flue gas treatment, the required module length for different inlet gas flow rate is analyzed.