Incorporation of catalytic dehydrogenation into fischer-tropsch synthesis to significantly reduce carbon dioxide emissions
US8309616B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 18, 2011 |
| Grant date | Nov 13, 2012 |
| Priority date | — |
| Expiry date | Nov 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/40
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A new method of producing liquid transportation fuels from coal and other hydrocarbons that significantly reduces carbon dioxide emissions by combining Fischer-Tropsch synthesis with catalytic dehydrogenation is claimed. Catalytic dehydrogenation (CDH) of the gaseous products (C1-C4) of Fischer-Tropsch synthesis (FTS) can produce large quantities of hydrogen while converting the carbon to multi-walled carbon nanotubes (MWCNT). Incorporation of CDH into a FTS-CDH plant converting coal to liquid fuels can eliminate all or most of the CO2 emissions from the water-gas shift (WGS) reaction that is currently used to elevate the H2 level of coal-derived syngas for FTS. Additionally, the FTS-CDH process saves large amounts of water used by the WGS reaction and produces a valuable by-product, MWCNT.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.