| Study on influencing factors of forming hydrate membrane in CO2/N2 separation |
| Authors: ZHU Ling, WANG Jinqu, LU Jinming , YANG Jianhua |
| Units: Institute of Adsorption and Inorganic Membrane, State Key Laboratory of Fine Chemicals,Dalian University of Technology |
| KeyWords: CO2/N2; hydrate membrane; CO2 separation |
| ClassificationCode:TQ028. 8 |
| year,volume(issue):pagination: 2011, 31(2):50-55 |
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Abstract: |
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Greenhouse gases have become a serious world problem. CO2 is known to be the most prevalent greenhouse gas and has the potential to cause severe changes in the global climate. New energy-saving and effective technology to capture CO2 should be developed in present factory for CO2 Emission Reduction. It has scientific significance and broad application prospects in reducing the greenhouse effect and environmental protection. Hydrate membrane separation which combined hydrate with membrane separation has been proposed. Influencing factors of forming hydrate membrane such as the pore size of ceramic tube, gas composition, pressure and temperature were investigated using the self-established experimental apparatus of hydrate membrane separation for CO2 capture. The results demonstrate that α-Al2O3 ceramic tube with average pore diameter of 380nm is better than the others for forming hydrate membrane. The CO2/N2 mixture gas with more CO2 will be more easy to form flawless hydrate membrane under condition of higher pressure , lower temperature and longer static time. |
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Funds: |
| 国家自然科学基金项目(20876019) |
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[1] 陈红萍,梁英华,王奔.二氧化碳的化学利用及催化体系的研究进展.[J].化工进展,2009,28 (增刊) :271-278
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