Journal
CHEMPHYSCHEM
Volume 18, Issue 3, Pages 299-309Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cphc.201601283
Keywords
carbon dioxide hydrogenation; copper catalysts; dimethyl ether; intrinsic kinetics; plasma activation
Funding
- National Natural Science Foundation of China [21366004, 21425627]
- Natural Science Foundation of Guangxi Province [2016GXNSFFA380015, 2015GXNSFDA139005]
- Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology [2016Z003]
Ask authors/readers for more resources
CO2 is activated in a plasma reactor followed by hydrogenation over a Cu-Fe-Ce/HZSM-5 catalyst, and the intrinsic kinetics of the plasma catalytic process are studied. Compared with CO2 hydrogenation using Cu-Fe-Ce/HZSM-5 alone, the CO2 conversion and the dimethyl ether selectivity for the plasma catalytic process are increased by 16.3 %, and 10.1 %, respectively, indicating that the CO2 was activated by the plasma to promote hydrogenation. A study of the intrinsic kinetics shows that the activation energies of methanol formation, the reverse water-gas shift reaction, and methanol dehydration to dimethyl ether are 149.34, 75.47, and 73.18 kJ mol(-1), respectively, which are lower than if Cu-Fe-Ce/HZSM-5 is used without plasma, indicating that the activation of CO2 in the plasma reduces the activation energy of the hydrogenation reaction and improves the yield of dimethyl ether.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available