Hydrophobicity optimization of polypropylene hollow fiber membrane by sol–gel process for CO2 absorption in gas–liquid membrane contactor using response surface methodology

2017 ◽  
Vol 26 (6) ◽  
pp. 431-443 ◽  
Author(s):  
Parya Amirabedi ◽  
Reza Yegani ◽  
Amir Hossein Hesaraki
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Hollow Fiber ◽  
Liquid Membrane ◽  
Hollow Fiber Membrane ◽  
Sol Gel ◽  
Co2 Absorption ◽  
Membrane Contactor ◽  
Fiber Membrane ◽  
Sol Gel Process

Improvement of CO2 Separation Performance by Blended Aqueous Solutions of DEA+AMP in Hollow Fiber Membrane Contactor (HFMC)

2012 ◽  
Vol 512-515 ◽  
pp. 2308-2316 ◽  
Author(s):  
Zhen Wang ◽  
Meng Xiang Fang ◽  
Shui Ping Yan ◽  
Yi Li Pang ◽  
Zhong Yang Luo
Keyword(s):  
Hollow Fiber ◽  
Hollow Fiber Membrane ◽  
Co2 Flux ◽  
Positive Influence ◽  
Separation Performance ◽  
Co2 Absorption ◽  
Membrane Contactor ◽  
Fiber Membrane ◽  
High Concentration ◽  
Carbon Dioxide Co2

Absorption of carbon dioxide (CO2) by blended diethanolamine (DEA) + 2-amino-2- methyl-1-propanol (AMP) and single DEA solvents were compared using hollow fiber membrane contactor (HFMC). Experimental results showed AMP additive has positive influence to improve CO2 absorption flux and the optimum AMP/DEA mass concentration ratio is between 0.2 and 0.4. Decreasing gas liquid ratio could greatly promote CO2 absorption, and operating temperature has weak effect on CO2 flux. Besides, large CO2 flux can be achieved with high concentration of DEA+0.2AMP solution due to the decrease of liquid phase resistance to mass transfer, but the optimal DEA concentration was recommended to be about 15% for DEA+0.2AMP solution considering the costs of amines in HFMC.

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