Enhanced methanol production by two-stage reaction of CO2 hydrogenation at atmospheric pressure

Catalysis Communications

Van-Huy Nguyen¹  Ya-Ning Yang²  Chao-Wei Huang³  Jeffrey C.-S. Wu⁴ 

[1] Department of Engineering Science, National Cheng Kung University, Tainan 70101, Taiwan;Department of Chemical Engineering, National Taiwan University, Taipei 10617, Taiwan;Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, No. 415, Jiangong Road, Kaohsiung 80778, Taiwan;Faculty of Biotechnology, Binh Duong University, Thu Dau Mot, Viet Nam;

关键词: Carbon dioxide;    Carbon monoxide;    Hydrogenation;    Methanol;    Two-stage reaction;   

DOI  :  

来源: DOAJ

【 摘 要 】

Methanol 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.

【 授权许可】

Unknown