Selective hydrogenolysis of methyl and ethyl acetate in the gas phase on copper and supported Group VIII metal catalysts

Selective hydrogenation of fatty acids and methyl esters of fatty acids to obtain fatty alcohols–a review

“…Moreover, it has been proved that Cu/ZnO/SiO 2 catalysts are competitive against industrial Cu–Cr . It has been suggested that the anionic vacancies in ZnO are able to increase the electronic density of copper or that ZnO allows for the activation and storage of H 2 by spillover . Besides Cr and Zn, other promoters for Cu‐based catalysts have been mentioned in patents and the open literature.…”

“…Besides Cr and Zn, other promoters for Cu‐based catalysts have been mentioned in patents and the open literature. The addition of Mn on Cu/ZnO/Al 2 O 3 , Cu–Cr and unsupported copper catalysts with multiple promoters has been reported to increase the activity of the catalysts and/or the selectivity towards hydrogenolysis and hydrogenation. Manganese, iron, magnesium, zinc, silica‐supported copper and cobalt have also been tested as additives.…”

Thermochemical biorefinery based on dimethyl ether as intermediate: Technoeconomic assessment

“…Methanol can also be carbonylated to methyl acetate, but deactivation of the catalyst by the generated water occurs. The hydrogenation of acetates is a well-known process for which different catalysts have been developed [2][3][4][12][13][14]. In this work, data from various recent developments have been considered: (i) for the hydrocarbonylation cases a combination of a carbonylation (H-Mordenite) and a hydrogenation (Cu-ZnO) catalyst is used.…”

Conversion of Non-Homogeneous Biomass to Ultraclean Syngas and Catalytic Conversion to Ethanol

“…The hot mixture is flown through a catalytic bed where the catalyst CuO/Cr 2 O 3 or CuO/ZnO/Al 2 O 3 catalyst is placed. The CuO is reduced with H 2 /N 2 mixtures prior to adding any methyl acetate (Claus et al, 1991 The GHSV (based on H 2 ) of the reaction is comprised between 1,000 and 2,000 h -1 and the methyl acetate conversion reached 95%, with a slightly higher selectivity towards ethanol.…”