Istadi, I. and Saidina Amin, N.A. (2006) Optimization of process parameters and catalyst compositions in carbon dioxide oxidative coupling of methane over CaO-MnO/CeO2 catalyst using response surface methodology. Fuel Processing Technology, 87 . pp. 449-459. ISSN 0378-3820
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Available under License Creative Commons Public Domain Dedication.
Official URL: http://dx.doi.org/10.1016/j.fuproc.2005.11.004
The optimization of process parameters and catalyst compositions for the CO2 oxidative coupling of methane (CO2-OCM) reaction over CaO-MnO/CeO2 catalyst was developed using Response Surface Methodology (RSM). The relationship between the responses, i.e. CH4 conversion, C2 hydrocarbons selectivity or yield, with four independent variables, i.e. CO2/CH4 ratio, reactor temperature, wt.% CaO and wt.% MnO in the catalyst, were presented as empirical mathematical models. The maximum C2 hydrocarbons selectivity and yields of 82.62% and 3.93%, respectively, were achieved by the individual-response optimization at the corresponding optimal process parameters and catalyst compositions. However, the CH4 conversion was a saddle function and did not show a unique optimum as revealed by the canonical analysis. Moreover pertaining to simultaneous multi-responses optimization, the maximum C2 selectivity and yield of 76.56% and 3.74%, respectively, were obtained at a unique optimal process parameters and catalyst compositions. It may be deduced that both individual- and multi-responses optimizations are useful for the recommendation of optimal process parameters and catalyst compositions for the CO2-OCM process.
|Subjects:||T Technology > TP Chemical technology|
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Q Science > QD Chemistry
|Divisions:||Faculty of Engineering > Department of Chemical Engineering|
Faculty of Engineering > Department of Chemical Engineering
|Deposited By:||Dr. Istadi Istadi|
|Deposited On:||28 Apr 2009 10:05|
|Last Modified:||28 Apr 2009 10:07|
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