articleACS CatalysisDec 5, 2017Closed access

Direct Production of Lower Olefins from CO 2 Conversion via Bifunctional Catalysis

PGPeng GaoSDShanshan DangSLShenggang LiXBXianni BuZLZiyu Liu

Chinese Academy of Sciences · Shanghai Advanced Research Institute · +3 more institutions

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Abstract

Direct conversion of carbon dioxide (CO2) into lower olefins (C2=–C4=), generally referring to ethylene, propylene, and butylene, is highly attractive as a sustainable production route for its great significance in greenhouse gas control and fossil fuel substitution, but such a route always tends to be low in selectivity toward olefins. Here we present a bifunctional catalysis process that offers C2=–C4= selectivity as high as 80% and C2–C4 selectivity around 93% at more than 35% CO2 conversion. This is achieved by a bifunctional catalyst composed of indium–zirconium composite oxide and SAPO-34 zeolite, which is responsible for CO2 activation and selective C–C coupling, respectively. We demonstrate that both…

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Topics & keywords

Topics
Keywords
  • Bifunctional
  • Selectivity
  • Catalysis
  • Bifunctional catalyst
  • Chemistry
  • Ethylene
  • Zeolite
  • Organic chemistry
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