Dichloromethane treatment by mesoporous metal catalysts |
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| Authors: | Gui-Bing Hong Wwi-Shin Wu Chang-Tang Chang |
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| Affiliation: | 1. Department of Cosmetic Application and Management, St. Mary’s Junior College of Medicine, Nursing and Management, No. 100, Lane 265, San-Shing Road, Section 2, San-Shing Shiang, Yi-Lan 266, Taiwan;2. Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan;3. Department of Environmental Engineering, National I-Lan University, No. 1 Sheen-Long Road, I-Lan City 260, Taiwan |
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| Abstract: | Dichloromethane (DCM) is one of the most commonly used solvents in industry. DCM easily accumulates and breaks down slowly; it is recognized as being carcinogenic. This research uses the sol-gel method to synthesize Mesoporous Mobil Catalytic Material Number 41 (MCM-41), Fe-MCM-41 and Pt-MCM-41 catalysts, and discusses the effectiveness of using these self-made catalysts to treat DCM. The qualities of each catalyst are identified using XRPD, BET, and SEM–EDS characteristic analyses. These results are then analyzed using the reaction kinetics theory. Results show that removal efficiency increases with the increase in temperature and concentration, and decreases with the increase in reaction chamber flow rates. Adsorption of DCM using mesoporous metal catalysts conforms to the Langmuir isotherm adsorption model. It was found that the best correlation results were observed for a Pt-MCM-41 catalyst. |
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| Keywords: | VOCs dichloromethane mesoporous catalyst adsorption isotherm |
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