Abstract
The hydrogen production performance of sorption-enhanced methane steam reforming (SESMR) was investigated in this study. Three different K2CO3-promoted hydrotalcites (HTCs), including HTC A, industrial K2CO3-promoted HTC reported in the work by Ding and Alpay (Ding, Y.; Alpay, E. Chem. Eng. Sci. 2000, 55, 3461−3474); HTC B, commercial HTC from SASOL impregnated with K2CO3 in the work by Oliveira et al. (Oliveira, E. L. G.; Grande, C. A.; Rodrigues, A. E. Sep. Purif. Technol. 2008, 62, 137−147); and HTC C, commercial K2CO3-promoted HTC from SASOL, were considered. A set of experiments was carried out to measure CO2 adsorption on HTC C, and a one-dimensional (1D) heterogeneous dynamic fixed-bed reactor mathematical model was developed to simulate the performance of SEMSR. It was observed that the CO2 adsorption characteristics were different among the HTCs, resulting in different sorption-enhanced characteristic curves. The reaction period that can be operated to produce the high-purity hydrogen (99.99%) de...
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