Method for recycling exhaust gases from Fischer-Tropsch synthesis
US9290383B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 15, 2015 |
| Grant date | Mar 22, 2016 |
| Priority date | — |
| Expiry date | Jan 15, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method for recycling exhaust gas from Fischer-Tropsch synthesis. The method includes: 1) introducing raw gas to a shift reactor to conduct a water-gas shift reaction, and collecting shift gas; 2) introducing the shift gas to a Fischer-Tropsch synthesis device to yield a hydrocarbon fuel and exhaust gas, returning part of the exhaust gas as recycle gas; 3) introducing another part of the exhaust gas to a methanation reactor, allowing a methanation reaction to happen between the part of the exhaust gas and water vapor; 4) introducing a mixed gas product from the methanation reaction to a methane reforming reactor; 5) transporting the hydrogen and carbon monoxide resulting from the methane reforming reaction to a gas separator, separating the hydrogen and obtaining a mixed gas including carbon dioxide; and 6) returning the mixed gas including carbon dioxide to the methane reforming reactor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.