Peroxyacid compound use in odor reduction
US6015536A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 14, 1998 |
| Grant date | Jan 18, 2000 |
| Priority date | — |
| Expiry date | Jan 14, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D53/38
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Disclosed is a process for the treatment of a plant fluid effluent containing odor compounds including an alkyl mercaptan or an alkyl thiol, an amine compound, ammonia, hydrogen sulfide and mixtures thereof by contacting the plant effluent in either a counterflow or cocurrent flow process. In the process, the effluent is contacted with an aqueous solution comprising a peracid compound. When contacted with the peracid, odor compounds in the effluent are oxidized and converted from the gaseous phase into a chemically modified highly aqueous soluble phase in the aqueous treatment. In this way, odor removal from the gas is preferred and odor compounds are efficiently transferred into the aqueous treatment solution. The use of such a process produces a significant improvement in odor quality index as measured by a conventional process using an expert panel when compared to conventional treatment methods.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.