Process for the preparation and conversion of synthesis gas
US8106102B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 14, 2006 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Mar 19, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P20/52
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A process (10) for the preparation and conversion of synthesis gas includes reforming a feed gas (34) comprising methane in a reforming stage (18) to produce synthesis gas (46) which includes hydrogen and carbon monoxide. Some of the hydrogen and carbon monoxide is converted to a Fischer-Tropsch product (48) in a Fischer-Tropsch hydrocarbon synthesis stage (24). A tail gas (52), including unreacted hydrogen and carbon monoxide, methane and carbon dioxide, is separated from the Fischer-Tropsch product (48). In a tail gas treatment stage (28,30), the tail gas (52) is treated by reforming the methane in the tail gas (52) with steam (66) and removing carbon dioxide to produce a hydrogen rich gas (56). The tail gas treatment stage (28,30) may be either a combined tail gas treatment stage (28,30) or a composite tail gas treatment stage. The carbon dioxide from the tail gas treatment stage (28,30) is fed to the reforming stage (18).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.