Patent · US Expired

Gas treatment system and a method for using the same

US7198764B2 · kind B2 · utility

13Cited by
7References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 5, 2003
Grant dateApr 3, 2007
Priority date
Expiry dateAug 15, 2024

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02A50/20
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

In one embodiment, a method of treating a gas stream comprises: controlling an amount of the NH3 entering a catalytic unit and converting NO2 and the NH3 to N2 in the catalytic unit, wherein greater than or equal to about 60 wt % of NOx initially in the gas stream is converted to N2. In one embodiment, a gas treatment system comprises: a plasma reactor disposed downstream of an engine; a cracking catalyst disposed downstream of the engine; and a catalytic unit capable of converting NO and HC to NH3, and capable of converting NH3 and NO2 to N2.

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