• 专利标题:   Method for carbon dioxide hydrogenation to synthesize hydrocarbon, involves using potassium-transition metal co-promoting iron catalyst containing carbon black, nitrogen-doped graphene with ferric oxide, transition metal and potassium.
  • 专利号:   CN113583698-A, CN113583698-B
  • 发明人:   WANG J, AN W, MEN Y, CHEN S, GUO K, NIU X, XIONG L, LIU S
  • 专利权人:   UNIV SHANGHAI ENG TECHNOLOGY
  • 国际专利分类:   B01J027/24, C07C001/12, C07C011/04, C07C011/06, C07C011/08, C07C009/04, C10G002/00
  • 专利详细信息:   CN113583698-A 02 Nov 2021 C10G-002/00 202214 Chinese
  • 申请详细信息:   CN113583698-A CN10826097 21 Jul 2021
  • 优先权号:   CN10826097

▎ 摘  要

NOVELTY - Carbon dioxide hydrogenation to synthesize hydrocarbon compound, involves using catalyst, where the catalyst is potassium-transition metal co-promoting iron-based catalyst which is composed of carbon black, nitrogen-doped graphene half-coated with ferric oxide particles, transition metal and potassium as alkali metal. In potassium-transition metal co-promoting iron-based catalyst, the content of iron element is 1-40 wt.%, the content of transition metal is 1-30 wt.% and the content of potassium as alkali metal is 1-5 wt.%. The transition metal is one or more of palladium, nickel, cobalt, indium and chromium. The carbon dioxide hydrogenation reaction has carbon dioxide conversion rate of 22.73-40.62%, methane selectivity of 15.26-37.12% and carbon monoxide selectivity of 13.05-89.96%. The selectivity for carbon hydrocarbons with 2 to 4 carbon atoms is 12.22-43.99%, and the selectivity for carbon hydrocarbons with carbon atoms 5 or more is 22.64-72.51%. USE - Method for carbon dioxide hydrogenation to synthesize hydrocarbon. ADVANTAGE - The method is simple, and capable of using potassium-transition metal to promote iron-based catalyst as carbon dioxide hydrogenation for synthesizing hydrocarbon compounds, and effectively solving the problem of low selectivity of high-carbon hydrocarbons existing in the current method of carbon dioxide hydrogenation to synthesize hydrocarbon compounds.