Patent · US Expired

Method and device for removing oxidic noxious substances in an oxygen-containing exhaust gas and engine which is operated therewith

US6247303A · kind A · utility

17Cited by

7References

27Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Stefan Broer · Wickede (Ruhr), DE
Thomas Hammer · Iserlohn, DE
Frank Witzel · Saratoga Springs, US

Key dates

Filing date	Nov 16, 1999
Grant date	Jun 19, 2001
Priority date	—
Expiry date	Nov 16, 2019

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

To clean the exhaust gas of internal-combustion engines or other machines which are operated with fossil fuel, it is proposed to firstly pretreat the exhaust gas in a non-thermal normal-pressure gas discharge and subsequently allow a selective catalytic reduction of oxidic noxious substances to take place with the addition of a suitable reduction substance, or to allow a selective catalytic decomposition to take place. The device for removing the oxidic noxious substances is characterized by a series circuit of at least one module with a gas discharge section and at least one module with a catalytic-converter section, and is suitable in particular for use in a diesel engine.

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