Hydrogen Generation from CO2 Reforming of Biomass-Derived Methanol on Ni/SiO2 Catalyst

Reforming of ethanol with carbon dioxide catalysed by silver-promoted copper–ceria–zirconia composites

“…18 In the present study acetaldehyde was not observed while it is often observed or stated in the literature. 1–26 After hydrogen is eliminated from structure (B), successive rapid reactions including structures (C), (D), (E) and (A) in order could occur. In the structure (C), methyl, carbonyl and hydride groups are formed on the surface through C–C bond scission and C–H bond scission of adsorbed acetaldehyde on Cu I species.…”

“…Dry reforming using greenhouse gas CO 2 to produce hydrogen and synthesis gas could be an ideal process if carbon neutral biomass was combined. 1–26 Although dry reforming of methane, one of the fossil fuels, has already been developed extensively, 27–37 the continuous utilization of fossil fuels might increase CO 2 even if methane fermentation could be utilized. Instead of the use of methane, dry reforming of ethanol (DRE) 1–26 would be one of the promising attempts to achieve a complete carbon neutral system.…”

“…1–26 Although dry reforming of methane, one of the fossil fuels, has already been developed extensively, 27–37 the continuous utilization of fossil fuels might increase CO 2 even if methane fermentation could be utilized. Instead of the use of methane, dry reforming of ethanol (DRE) 1–26 would be one of the promising attempts to achieve a complete carbon neutral system. 1 Ethanol is a common product, not toxic, safely preserved, transferred, treated and further could be a very attractive hydrogen source.…”

“…Nevertheless, DRE has still been desired since syngas with a H 2 /CO ratio of 1 suitable for hydrocarbon production in the Fischer–Tropsch reaction could be produced. When this reaction has been performed, 1–26 however, yields of H 2 and CO were not necessarily high due to not only methane formation but also coke deposition at a temperature higher than 600 °C. It was reported that Cu-based catalysts showed higher ethanol and CO 2 conversions in dry reforming.…”