Patent · US Expired

Process for nitrogen oxides reduction and minimization of the production of other pollutants

US5017347A · kind A · utility

25Cited by
28References
42Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 23, 1989
Grant dateMay 21, 1991
Priority date
Expiry dateMay 23, 2009

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J2219/00058
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A process for the reduction of nitrogen oxides in an effluent from the combustion of a carbonaceous fuel while minimizing the production of other pollutants is presented. The process comprises introducing (most commonly by injecting) a nitrogen oxides reducing treatment agent into an effluent according to a nitrogen oxides reducing treatment regimen under conditions such that the treatment agent is operating on the high temperature or right side of its nitrogen oxides reduction versus effluent temperature curve, especially on the high temperature or right side of the curve plateau.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.