Energy and exergy evaluations of catalytic dry reforming of methane for syngas production in fixed-bed reactors
by Reiyu Chein; Wen-Huai Hsu
International Journal of Exergy (IJEX), Vol. 30, No. 2, 2019

Abstract: The energy and exergy characteristics of dry reforming of methane (DRM) were numerically studied in this study in a tubular fixed-bed reactor under heat supply from uniform temperature furnace or uniform wall heat flux. Variations in enthalpy, entropy and exergy were computed based on non-equilibrium thermodynamics for chemical reactions. The heat supply, heat of chemical reaction and entropy generation due to irreversibility were the sources that caused changes in enthalpy, entropy and exergy between the reactor inlet and outlet. Based on the simulated results it was found that the chemical reaction is the most dominant factor for entropy generation. It was also found that exergy at reactor outlet depends on the heat supply and a minimum value can be found due to contribution variations from the gas species involved in DRM.

Online publication date: Mon, 09-Sep-2019

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