期刊
JOURNAL OF CO2 UTILIZATION
卷 29, 期 -, 页码 140-145出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jcou.2018.12.002
关键词
CO2 hydrogenation to aromatics; Tandem catalyst; Methanol synthesis on oxides; Arene-based cycle
资金
- National Key Research and Development Program of China [2016YFB0600902-5]
- Fundamental Research Funds for the Central Universities [DUT18RC(3)057]
In the past decades, considerable achievements have been made in CO2 hydrogenation to various C1 chemicals, lower olefins, and gasoline. However, the synthesis of aromatics from one-pass CO2 hydrogenation is still a great challenge owing to the extreme inertness of CO2 and the high aromatization barrier. Here we present a tandem catalyst comprising of ZnO/ZrO2 and ZSM-5 zeolite for one-pass CO2 conversion to aromatics with a selectivity of 70%, and the selectivity of undesirable methane is greatly suppressed to lower than 1%. A pathway of CO2 -> CH3OH -> aromatics over the tandem catalyst was demonstrated. This work offers a viable alternative for CO2 emission abatement through its valorization as a low or even negative-cost feedstock.
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