Method to eliminate all carbon dioxide emissions during the production of liquid fuels from coal and natural gas
US9133075B1 · kind B1 · utility
Inventor
Key dates
| Filing date | May 19, 2014 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | May 19, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P30/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
This invention relates to the production of liquid fuels from coal and natural gas and, more specifically, to a new process that combines Fischer-Tropsch synthesis (FTS) with catalytic dehydrogenation (CDH) and methane injection (MI) into the CDH reactor (FTS-CDH-MI) to eliminate all carbon dioxide emissions during the production of liquid fuels. The additional methane for the FTS-CDH-MI process can be derived from natural gas produced by hydro-fracking. The addition of methane in the CDH process eliminates the need for the standard water-gas shift (WGS) reaction to the syngas, which is used to increase the hydrogen (H2) of the syngas in FTS. This eliminates the use of water in the process and eliminates entirely the production of CO2. In addition to producing the H2 needed for FTS, this process (FTS-CDH) converts the C in these gases into multi-walled carbon nanotubes (MWCNT).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.