Optimization of the gas separation performance of polyurethane-zeolite 3A and ZSM-5 mixed matrix membranes using response surface methodology

doi:10.1016/j.cjche.2018.03.013

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (1): 110-129.DOI: 10.1016/j.cjche.2018.03.013

• Separation Science and Engineering • 上一篇下一篇

Optimization of the gas separation performance of polyurethane-zeolite 3A and ZSM-5 mixed matrix membranes using response surface methodology

Hajar Taheri Afarani¹, Morteza Sadeghi², Ahmad Moheb², Ebrahim Nasr Esfahani¹

1 Department of Chemical Engineering, Tennessee Technological University, Cookeville 38501, United States;
2 Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-8311, Iran

收稿日期:2017-09-10 修回日期:2018-03-07 出版日期:2019-01-28 发布日期:2019-01-31
通讯作者: Hajar Taheri Afarani, Morteza Sadeghi

Optimization of the gas separation performance of polyurethane-zeolite 3A and ZSM-5 mixed matrix membranes using response surface methodology

Hajar Taheri Afarani¹, Morteza Sadeghi², Ahmad Moheb², Ebrahim Nasr Esfahani¹

1 Department of Chemical Engineering, Tennessee Technological University, Cookeville 38501, United States;
2 Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-8311, Iran

Received:2017-09-10 Revised:2018-03-07 Online:2019-01-28 Published:2019-01-31
Contact: Hajar Taheri Afarani, Morteza Sadeghi

摘要/Abstract

摘要： In the present work, the response surface method software was used with five measurement levels with three factors. These were applied for the optimization of operating parameters that affected gas separation performance of polyurethane-zeolite 3A, ZSM-5 mixed matrix membranes. The basis of the experiments was a rotatable central composite design (CCD). The three independent variables studied were:zeolite content (0-24 wt%), operating temperature (25-45℃) and operating pressure (0.2-0.1 MPa). The effects of these three variables on the selectivity and permeability membranes were studied by the analysis of variance (ANOVA). Optimal conditions for the enhancement of gas separation performances of polyurethane-3A zeolite were found to be 18 wt%, 30℃ and 0.8 MPa respectively. Under these conditions, the permeabilities of carbon dioxide, methane, oxygen and nitrogen gases were measured at 138.4, 22.9, 15.7 and 6.4 Barrer respectively while the CO₂/CH₄, CO₂/N₂ and O₂/N₂ selectivities were 5.8, 22.5 and 2.5, respectively. Also, the optimal conditions for improvement of the gas separation performance of polyurethane-ZSM 5 were found to be 15.64 wt%, 30℃ and 4 bar. The permeabilities of these four gases (i.e. carbon dioxide, methane, oxygen and nitrogen) were 164.7, 21.2, 21.5 and 8.1 Barrer while the CO₂/CH₄, CO₂/N₂ and O₂/N₂ selectivities were 7.8, 20.6 and 2.7 respectively.

关键词: Response surface method (RSM), Mixed matrix membranes, Analysis of variance (ANOVA), Optimum conditions

Abstract: In the present work, the response surface method software was used with five measurement levels with three factors. These were applied for the optimization of operating parameters that affected gas separation performance of polyurethane-zeolite 3A, ZSM-5 mixed matrix membranes. The basis of the experiments was a rotatable central composite design (CCD). The three independent variables studied were:zeolite content (0-24 wt%), operating temperature (25-45℃) and operating pressure (0.2-0.1 MPa). The effects of these three variables on the selectivity and permeability membranes were studied by the analysis of variance (ANOVA). Optimal conditions for the enhancement of gas separation performances of polyurethane-3A zeolite were found to be 18 wt%, 30℃ and 0.8 MPa respectively. Under these conditions, the permeabilities of carbon dioxide, methane, oxygen and nitrogen gases were measured at 138.4, 22.9, 15.7 and 6.4 Barrer respectively while the CO₂/CH₄, CO₂/N₂ and O₂/N₂ selectivities were 5.8, 22.5 and 2.5, respectively. Also, the optimal conditions for improvement of the gas separation performance of polyurethane-ZSM 5 were found to be 15.64 wt%, 30℃ and 4 bar. The permeabilities of these four gases (i.e. carbon dioxide, methane, oxygen and nitrogen) were 164.7, 21.2, 21.5 and 8.1 Barrer while the CO₂/CH₄, CO₂/N₂ and O₂/N₂ selectivities were 7.8, 20.6 and 2.7 respectively.

Key words: Response surface method (RSM), Mixed matrix membranes, Analysis of variance (ANOVA), Optimum conditions

Hajar Taheri Afarani, Morteza Sadeghi, Ahmad Moheb, Ebrahim Nasr Esfahani. Optimization of the gas separation performance of polyurethane-zeolite 3A and ZSM-5 mixed matrix membranes using response surface methodology[J]. Chinese Journal of Chemical Engineering, 2019, 27(1): 110-129.

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Optimization of the gas separation performance of polyurethane-zeolite 3A and ZSM-5 mixed matrix membranes using response surface methodology

Optimization of the gas separation performance of polyurethane-zeolite 3A and ZSM-5 mixed matrix membranes using response surface methodology

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