Process for eliminating mercury from steam cracking installations
US5304693A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 1991 |
| Grant date | Apr 19, 1994 |
| Priority date | — |
| Expiry date | Aug 28, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/8665
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for the elimination of mercury from an overall steam cracking installation, characterized in that regeneration is terminated by the injection of regeneration gas onto an active demercurizing mass, such that there is substantially no trace of mercury in the air or liquids leaving the installation. The process involves the use of three demercurizing masses, namely two upstream of the installation which are in series and one downstream, which latter is demercurized by at least one of the upstream masses. The use more particularly applies to the depollution of steam cracking installations which are already polluted by mercury.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.