US EPA

6127687 

Journal Article 

Modeling and simulation of methane dry reforming in direct-contact bubble reactor 

Al-Ali, K; Kodama, S; Sekiguchi, H 

2014 

1 

Solar Energy
ISSN: 0038-092X 

102 

45-55 

10.1016/j.solener.2014.01.010 

WOS:000334476100004 

http://www.sciencedirect.com/science/article/pii/S0038092X14000280
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Modeling and simulation of the reforming behavior of a mixture of methane and carbon dioxide in a direct-contact bubble reactor (DCBR) was described. The endothermic catalytic reaction obeys the kinetics of the methane dry reforming in a direct-contact bubble reaction system containing an active catalyst, i.e., Ni–Al2O3 catalyst and molten salt mixture system. The reforming process was simulated, using commercial software for chemical kinetics, for a single reactor model, to examine a kinetic model based on the postulated heterogeneous reaction mechanism, in the temperature range 600–900°C, at 1atm. The simulated data were evaluated and validated with the measured data from a laboratory reformer. The catalyst activity in the DCBR was characterized using a catalyst–bubble contact model, in terms of the total-catalytic active surface area. We used the detailed simulation studies to identify the essential characteristics of the reaction mechanism in a DCBR. 

Methane dry reforming; Modeling; Simulation; Direct-contact bubble reactor; Hydrogen production; Solar reformer