CO2 removal using membrane gas absorption |
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| Authors: | AL Ahmad AR Sunarti KT Lee WJN Fernando |
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| Institution: | 1. School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Pulau Pinang, Malaysia;2. Faculty of Chemical Engineering and Natural Resources, Universiti Malaysia Pahang, 25000 Kuantan, Pahang, Malaysia;1. School of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing 400054, China;2. Fujian Province University Key Laboratory of Green Energy and Environment Catalysis, Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry, Ningde Normal University, Ningde 352100, China;3. Department of Chemical and Materials Engineering, Shahrood University of Technology, Shahrood, Iran;4. Key Laboratory of Low-grade Energy Utilization Technologies and Systems, Ministry of Education of China, Chongqing University, Chongqing 400044, China;5. School of Environmental Science and Engineering and Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China;1. Cooperative Research Centre for Greenhouse Gas Technologies (CO2CRC), Department of Chemical & Biomolecular Engineering, The University of Melbourne, Melbourne, Australia;2. Faculty of Engineering and Applied Science, University of Regina, Regina, SK, Canada;1. Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia UTM, 81310 Johor Bahru, Johor, Malaysia;2. Department of Chemical and Biological Engineering, University of Ottawa, Ottawa, Ontario, K1N 6N5, Canada;3. Integrated Material and Process, Advanced Manufacturing & Materials Centre (AMMC), Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, Parit Raja, 86400 Batu Pahat, Johor, Malaysia;4. Department of Environmental Engineering, Faculty of Civil Engineering, Universiti Teknologi Malayia UTM, 81310 Johor Bahru, Malaysia;5. Department of Petroleum and Petrochemical Engineering, Engineering College, Karbala University, 56001 Karbala, Iraq;1. School of Civil and Environmental Engineering, Nanyang Technological University, 639798 Singapore, Singapore;2. Singapore Membrane Technology Centre, Nanyang Environment and Water Research Institute, Nanyang Technological University, 637141 Singapore, Singapore;1. School of Chemical Engineering, Engineering Campus, Universiti Sains Malaysia, 14300 Nibong Tebal, Seberang Prai Selatan, Pulau Pinang, Malaysia;2. Center for Petroleum & Minerals, King Fahd University of Petroleum & Minerals, Dhahran 31261, Saudi Arabia |
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| Abstract: | The objective of this study is to investigate the potential process for the removal of carbon dioxide (CO2) from flue gas using fundamental membrane contactor, which is a membrane gas absorption (MGA) system. The experiments consisted of microporous polyvinylidenefluoride (PVDF) flat sheet membrane with 0.1 μm (as module I) and 0.45 μm (as module II) pore size. 2-Amino-2-methyl-1-propanol (AMP) solution was employed as the liquid absorbent. The effect of AMP concentration was studied with variation in the range 1–5 M. In addition, the experiments were carried out with 10%, 20%, 30% and 40% gas ratio of CO2 to N2 and pure CO2 as well. Through contact angle measurement, membranes for module I and module II were obtained with CA values of around 130.25° and 127.77°, respectively. The mass transfer coefficients for module II are lower than those of module I for 1–5 M of AMP. Furthermore, the increase in CO2 concentration in the feed gas stream enhanced the CO2 flux as the driving force of the system was increased in sequence from 1 M to 5 M of AMP. However, after the particular percentage (40%) of CO2 inlet concentration, the CO2 fluxes seem saturated. The combination of AMP as liquid absorbent and PVDF microporous membrane in MGA system has shown the potential to remove the CO2 from flue gas. In addition, the higher AMP concentration gave higher mass transfer coefficient at low liquid flow rates. |
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