Conversion of waste CO2 into useful transport fuels using steam methane reformer in a gas to liquids plant
US10287507B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 19, 2016 |
| Grant date | May 14, 2019 |
| Priority date | — |
| Expiry date | Jan 31, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of producing fuel from CO2 comprising introducing natural gas, steam, and recovered CO2 to a reformer to produce unshifted syngas characterized by a molar ratio of hydrogen to carbon monoxide of from about 1.7:1 to about 2.5:1; introducing the unshifted syngas to a water gas shift unit to produce a shifted syngas, wherein an amount of CO2 in the shifted syngas is greater than in the unshifted syngas; separating the CO2 from the shifted syngas to produce recycle CO2 and a hydrogen-enriched syngas; recycling the recycle CO2 to the reformer; introducing the unshifted syngas to a Fischer-Tropsch (FT) unit to produce an FT product, FT water, and FT tail gas, wherein the FT product comprises FT liquids and FT wax; and separating the FT liquids from the FT product to produce a fuel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.