Graphene modified iron-based catalyst and preparation and application thereof for use in Fischer-Tropsch reaction
US10946363B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 2019 |
| Grant date | Mar 16, 2021 |
| Priority date | — |
| Expiry date | Aug 21, 2039 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/70
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present disclosure disclosures a graphene modified iron-based catalyst and preparation and application thereof for use in Fischer-Tropsch reaction, belonging to the technical field of catalytic conversion of synthesis gas. The catalyst consists of, by mass percent, 0.01-30% of graphene, 0-20% of promoter and 60-99.99% of iron oxide powder. The preparation process of the catalyst is as follows: the graphene, the iron oxide powder and the promoter are sequentially placed in an aqueous solution for ultrasonic treatment and stirring, and then rotary evaporation, drying and calcining are conducted. The preparation method is simple. The catalyst shows excellent activity in the Fischer-Tropsch reaction, and maintains a high CO conversion rate of 90% or above for a long time at a very high reaction space velocity; meanwhile, the alkane content in a product is low, and an olefin-alkane ratio can reach 14, thus having an extremely high industrial application value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.