Enhanced hydrogen production by sorption-enhanced steam reforming from glycerol with in-situ CO2 removal in a fixed-bed reactor

Enhanced hydrogen production by sorption-enhanced steam reforming from glycerol with in-situ CO2 removal in a fixed-bed reactor

Type	Journal Article
Author	Binlin Dou
Author	Bo Jiang
URL	http://www.sciencedirect.com/science/article/pii/S0016236115011436
Volume	166
Pages	340-346
Publication	Fuel
Date	February 15, 2016
Abstract	For the fixed-bed reactor configuration in the sorption-enhanced steam reforming process (SERP), solid mixture of catalyst and sorbent is stationary and alternatively exposed to reaction and regeneration conditions for multi-cycles by periodically switching the feed gases for enhanced hydrogen production with in-situ CO2 removal. Researchers prepared A NiO/NiAl2O4 catalyst using the co-precipitation method with rising pH technique. The crystalline spinel phase of NiAl2O4 was formed under the calcination temperature of 900 °C. Results revealed that hydrogen production by SERP can be clearly divided into three periods. The experimental gaseous products were compared with non-stoichiometric thermodynamic calculations. H2 purity was greatly increased, and CO2, CO and CH4 concentrations were reduced by in-situ CO2 removal during the pre-breakthrough period. Enhanced hydrogen production depended on in-situ CO2 removal. The operation durations for producing high-purity hydrogen of more than 90% were decreased with the increase of the cycles.