Song, Hyun-tae Kim, Hyun Dong Yang, Yu-jeong Seo, Jeong Min Choi, Ye-na Lee, Kwan-Young Moon, Dong Ju 2024-03-28T07:30:07Z 2024-03-28T07:30:07Z 2024-03-28 2024-05 0256-1115 https://pubs.kist.re.kr/handle/201004/149536 Cu-based catalysts were created using a two-step co-precipitation method, which can produce methanol from synthesis gases (H-2 and CO) that also contain CO2. The catalysts were manufactured by a two-step co-precipitation method and compared with catalysts manufactured by a one-step co-precipitation method. The supports with Zn/Al = 1 (10ZA) and Zn/Al = 2 (20ZA) showed higher ZnAl2O4 ratios than the other catalysts, and the catalysts using these supports showed a similar trend to the ZnAl2O4 ratio. Cu-ZnO/mixture ZnO and ZnAl2O4 catalysts with more ZnAl2O4 (C10Z/20ZA and C20Z/10ZA) showed lower carbon and CO conversion losses and lower sintering of Cu (200) particles at the reaction temperatures (250, 300, and 350 degrees C) than the Cu-ZnO-ZnAl2O4 (C30ZA) catalyst. Cu-ZnO/mixture ZnO and ZnAl2O4 using support with Zn/Al = 2 (C10Z/20ZA) achieved dispersion of Cu (44.2%) and a methanol yield (409.0 g(MeOH)/kg(cat.)/h) at a reaction temperature of 250 degrees C, GHSV of 4,444 h(-1), and 40 bar. English 한국화학공학회 Modified Cu-ZnO Catalysts Supported on the Mixture of ZnO and Zn-Al Oxide for Methanol Production via Hydrogenation of CO and CO2 Gas Mixture Article 10.1007/s11814-024-00022-7 1 Korean Journal of Chemical Engineering, v.41, no.5, pp.1375 - 1389 Korean Journal of Chemical Engineering 41 5 1375 1389 N scie scopus kci ART003080891 001174151500002 Chemistry, Multidisciplinary Engineering, Chemical Chemistry Engineering Article PERFORMANCE TECHNOLOGIES SELECTIVITY CU/ZNAL2O4 PROMOTERS DIMETHYL ETHER SURFACE-AREA Methanol synthesis Copper catalyst Zinc-alumina oxide spinel CO/CO2 gas mixture Thermal stability of catalyst