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Optimization of Methane Conversion to Liquid Fuels over W-Cu/ZSM-5 Catalysts by Response Surface Methodology

Anggoro, D.D. and Istadi, I. (2008) Optimization of Methane Conversion to Liquid Fuels over W-Cu/ZSM-5 Catalysts by Response Surface Methodology. Journal of Natural Gas Chemistry, 17 . pp. 39-44. ISSN 1003-9953

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Official URL: http://dx.doi.org/10.1016/S1003-9953(08)60023-7

Abstract

The conversion of methane to liquid fuels is still in the development process. The modified HZSM-5 by loading with Tungsten (W) enhanced its heat resistant performance, and the high reaction temperature (800 ◦C) did not lead to the loss of W component by sublimation. The loading of ZSM-5 with Tungsten and Copper (Cu) resulted in an increment in the methane conversion, CO2, andC5+ selectivities. The high methane conversion and C5+ selectivity, and low H2O selectivity are obtained by using W/3.0Cu/ZSM-5. The optimization of methane conversion over 3.0W/3.0Cu/ZSM-5 under different temperature and oxygen concentration using response surface methodology (RSM) are studied. The optimum point for methane conversion is 19% when temperature is 753 ◦C, and oxygen concentration is 12%. The highest C5+ selectivity is 27% when temperature is 751 ◦C, and oxygen concentration is 11%.

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