Process and apparatus for separating metal carbonyls from synthesis gas
US8357230B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 6, 2007 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | May 14, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2257/408
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a process for purifying crude synthesis gas (1) containing metal carbonyls, in which undesirable substances such as sulphur components and/or carbon dioxide (CO2) and/or hydrocyanic acid (HCN) are scrubbed out by scrubbing with a physically acting scrubbing medium in at least one process step (main scrub (H)), and also an apparatus for carrying out the process. The crude synthesis gas (1) before introduction into the main scrub (H) is subjected to a gas scrub (carbonyl scrub (C)) in which a partial amount (4) of the laden scrubbing medium (2) taken off from the main scrub is used as scrubbing medium, with the partial amount (4) being chosen so that the metal carbonyls are (selectively) separated off from the crude synthesis gas (1) in the carbonyl scrub (C) largely independently of the other gas components.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.