Copper zinc oxide nanocatalysts grown on cordierite substrate for hydrogen production using methanol steam reforming

Methanol steam reforming over Co‐Cu‐Zn / γ‐Al 2 O 3 catalyst: Kinetic and RSM‐BBD modeling approaches

“…Hereby, the sensitivity of CO yield to S/M variable was enhanced by increasing the reaction temperature. The similar results about changing of CO yield with steam/methanol ratio in MSR 34,53,59 . It is observed that CO yield was no changed with S/M at 100°C, while CO yield has a remarkable decreasing trend with S/M at 600°C 24 .…”

“…The similar results about changing of CO yield with steam/methanol ratio in MSR. 34,53,59 It is observed that CO yield was no changed with S/M at 100 C, while CO yield has a remarkable decreasing trend with S/M at 600 C. 24 Romen et al 57 founded that steam/methanol ratio has a greater influence on the formation of CO at high temperature than low temperatures, which indicated to preferable tendency RWGS in higher temperature. The relatively high CO yield was achieved at steam/methanol ratio lower than 1.5 because of MD and RWGS occurrence.…”

“…It can be seen that the methanol conversion was constant and almost little up to 260 C, which was well accorded with results of other scientists. 49 Fasanya et al 53 lead to deactivation of MSR catalyst. 54 The different results were observed by Zhang et al 55 They concluded there is a sharp growth for methanol conversion in range of 150 C to 220 C and then be constant up to 320 C. A 100% conversion of methanol was attained, when the temperature and S/M are bigger than 200 C and 1, respectively.…”

Combined steam and dry reforming of methanol over Fe‐Mn‐Cu / ZrO 2 catalyst to syngas formation: Study about kinetic and fuzzy model approaches

“…[4][5][6][7]18,19 The predominant sintering mechanism in bulk metal is vacancy diffusion which relates to cohesive energy. 20,21 Different catalyst compositions have been evaluated to reduce sintering. Zirconia (ZrO 2 ) a metal oxide with three polymorphs (monoclinic, tetragonal and cubic) has a great ion exchange performance and surface enriched of oxygen vacancies could remarkably reduce sintering during SRM and DRM reactions.…”

“…Zirconia (ZrO 2 ) a metal oxide with three polymorphs (monoclinic, tetragonal and cubic) has a great ion exchange performance and surface enriched of oxygen vacancies could remarkably reduce sintering during SRM and DRM reactions. 20 Azenha et al 22 applied ZrO 2 as support in SRM reaction and illustrated the interesting catalytic properties and its influence on the crystalline structure of the catalyst. Witoon et al 23 proved that Cu-based catalysts with zirconia support had a significant influence on the conversion and H 2 selectivity; also they investigated the relation of ZrO 2 phase (monoclinic, tetragonal and cubic) with the crystals structure and physicochemical properties of the catalyst.…”