Recovery of CO2 in a process for the synthesis of methanol
US9422212B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 16, 2015 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Mar 16, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49716
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A process for producing methanol, where a hydrocarbon feedstock (1) is reformed and a make-up syngas is reacted in a synthesis loop, obtaining crude methanol which is further treated to obtain high-grade methanol, and where the carbon dioxide dissolved in the crude methanol is recycled to the reforming section in order to adjust the stoichiometric number of the make-up syngas. In a preferred embodiment, a flash gas (9) separated from the crude methanol (8) and light ends (10) coming from distillation are recycled to a compressor (106) and fed to a primary reformer (100); further carbon dioxide can be recycled from the flue gas (11).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.