Process for the reduction of nitrogen oxides in an effluent
US4844878A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 1987 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Oct 14, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01J2219/00058
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process is presented for the reduction of nitrogen oxides in the effluent from the combustion of a carbonaceous fuel. The process comprises introducing a treatment agent comprising a composition selected from the group consisting of NH.sub.4 -lignosulfonate, calcium lignosulfonate, 2-furoci acid, 1,3 dioxolane, 1,4 dioxane, tetrahydrofuran, furfurylamine, furfurylalcohol, gluconic acid, citric acid, formic acid, n-butyl acetate, 1,3 butylene glycol, methylal, tetrahydrofuryl alcohol, furan, fish oil, coumalic acid, furfuryl acetate, tetrahydrofuran 2,3,4,5-tetracarboxylic acid, tetrahydrofurylamine, furylacrylic acid, tetrahydropyran, 2,5-furandimethanol, mannitol, hexamethylenediamine, barbituric acid, acetic anhydride, oxalic acid, mucic acid and d-galactose into an effluent under conditions effective to reduce the concentration of nitrogen oxides in the effluent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.