Yang Y.-NHuang C.-WNguyen V.-HWu J.C.-S.JEFFREY CHI-SHENG WU2022-03-222022-03-22202215667367https://www.scopus.com/inward/record.uri?eid=2-s2.0-85119924799&doi=10.1016%2fj.catcom.2021.106373&partnerID=40&md5=ea2002ea81656f37cf3038a6fe98a6afhttps://scholars.lib.ntu.edu.tw/handle/123456789/598214Methanol can be produced from CO2 hydrogenation. CO2 was hydrogenated to CH3OH in one-stage reaction at atmospheric pressure. The result was highly selective to CH3OH but insufficient conversion of CO2 using Cu/Zn/Al2O3. A two-stage reaction was carried out with high and low temperatures, respectively. CO2 was hydrogenated to carbon monoxide (CO) and H2O in the first-stage at high temperatures. Subsequently, after removing H2O, CO was further hydrogenated to CH3OH in the second-stage at low temperatures. The CH3OH yield was 3.4 times higher than that of single-stage reaction. This concept achieves CO2 hydrogenation towards more CH3OH production. ? 2021 The AuthorsCarbon dioxideCarbon monoxideHydrogenationMethanolTwo-stage reactionAluminum compoundsAtmospheric pressureCopper compoundsHighest temperatureLows-temperaturesMethanol productionOH productionSingle stageTwo-stage reactions[SDGs]SDG7[SDGs]SDG13journal article10.1016/j.catcom.2021.1063732-s2.0-85119924799