One-step plasma-enabled catalytic carbon dioxide hydrogenation to higher hydrocarbons: significance of catalyst-bed configuration

Jiajie Wang, Mohammad S. AlQahtani, Xiaoxing Wang, Sean D. Knecht, Sven G. Bilén, Chunshan Song, Wei Chu

Research output: Contribution to journalArticlepeer-review

Abstract

Effectively converting CO2into fuels and value-added chemicals remains a major challenge in catalysis, especially under mild conditions. In this study, we report a one-step plasma-enabled catalytic process for CO2hydrogenation to C2+hydrocarbons operated at low temperature and atmospheric pressure in a dielectric barrier discharge (DBD) packed-bed reactor. Plasma without catalyst produces mainly CO (over 80% selectivity), while CH4becomes the main product when plasma is coupled with the alumina-supported Co catalyst. Interestingly, by simply changing the catalyst-bed configuration within the plasma discharge zone, more C2+hydrocarbons are selectively produced. High C2+hydrocarbons selectivity of 46% atca.74% CO2conversion is achieved when operated at the furnace temperature of 25 °C and 10 W DBD plasma. The possible origin of C2+formation and the significance of catalyst-bed configuration are discussed.

Original languageEnglish (US)
Pages (from-to)1642-1647
Number of pages6
JournalGreen Chemistry
Volume23
Issue number4
DOIs
StatePublished - Feb 21 2021

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Pollution

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