Method and installation for treating effluent gas containing hydrocarbons
US6849105B2 · kind B2 · utility
8Cited by
13References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 4, 2002 |
| Grant date | Feb 1, 2005 |
| Priority date | — |
| Expiry date | Oct 4, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/54
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Prior to passing through pumping apparatus effluent gas containing hydrocarbons is subjected to washing by being sprayed with aromatic type oil in oil-recirculating washing apparatus. Polycyclic aromatic hydrocarbons contained in the effluent gas are trapped by being absorbed in the oil. The method is suitable for treating effluent gas coming from an installation for chemical vapor deposition or infiltration using a reagent gas containing a precursor for pyrolytic carbon, or else coming from a cementation installation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.