Process for recovering carbon dioxide
US8080232B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2007 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Jan 14, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P90/70
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
In a process for obtaining CO2, desulfurized natural gas or gas which accompanies mineral oil is reformed autothermally with addition of oxygenous gas at a temperature of from 900 to 1200° C. and a pressure of from 40 to 100 bar (a) by partial catalytic oxidation to give a crude synthesis gas, and then converted catalytically to H2 and CO2 at a temperature of from 75 to 110 DEG C. and a pressure of from 50 to 75 bar (a) of CO, CO2 is scrubbed out of the synthesis gas obtained with methanol at a pressure of from 15 to 100 bar (a) and a temperature of from +10 to −80° C., and the absorbed CO2 is recovered by decompression. A further possible use of the process consists in converting the recovered CO2 to the supercritical state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.