The procedures leading to the preservation of catalytic performances of Au/ZrO2 samples have been investigated. The three potential causes of deactivation, namely the particle growth by sintering of gold nanoparticles, the metal leaching and the formation of un-reactive species which inhibit the reaction, have been evaluated. In particular, this paper deals with the stability of gold nanopartic...

This process modelling studied the effect of different reactants on syngas composition and gasifier heat duty (heat energy required to carry out operation) downstream treatment CO rich maximise hydrogen yield. The was validated against experimental data obtained from a large bench-scale entrained flow gasifier. Results show that considering H 2 /CO ratio, steam-O reactant favours most compared ...

In the Hydrogen based economy, distributed power generation systems using fuel cell technology require modularity. This modularity in power generation can be achieved by process intensification of the equipments involved. The water gas shift reaction is an integral part of hydrocarbon based Hydrogen generation and the reaction is kinetically limited and hence occupies the largest volume. Proces...

an extensive study of fischer-tropsch synthesis (fts) on alumina-supported cobalt catalysts with different amounts of cobalt is reported. up to 40 wt % of cobalt, is added to the catalysts by impregnation method. the effect of the cobalt loading on the reducibility of the cobalt oxide species, dispersion of the cobalt, average clusters size, water-gas shift (wgs) activity and activity and selec...

Introduction The fuel processor in which hydrocarbon fuels can be converted into hydrogen has recently attracted much attention as a result of the advancement in the fuel cell technology. In a fuel processor, the water-gas shift (WGS) reaction plays a crucial role in the transformation of CO, a well-known poisonous gas to electrode of fuel cell, into hydrogen through reaction with steam. In WGS...