Patent · US Active

Exhaust gas treatment of gas turbine engines

US8973346B2 · kind B2 · utility

1Cited by

11References

14Claims

0Family size

Assignee

AIRBUS OPERATIONS LIMITED · DE

Inventors

Erwin Bayer · Dachau, DE
Jürgen Steinwandel · Überlingen, DE
Emmanuel Joubert · Issy-les-Moulineaux, FR

Key dates

Filing date	Dec 7, 2012
Grant date	Mar 10, 2015
Priority date	—
Expiry date	Dec 7, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T50/60
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A gas turbine engine, especially a turbojet or turbofan for an aircraft, includes a combustion section and an exhaust section produces an exhaust gas. The emission products can be reduced by using a gas treatment device with a reactor and an injection device. The reactor produces a nitrogeneous substance such as ammonia. This reducing agent is injected in the gas phase in the exhaust section of the gas turbine engine. By selective non catalytic reaction the Nitrogen oxides of the exhaust gas can be reduced. Furthermore the injection device is arranged such that the temperature window of this reduction process is ranging from 850° C. to 1100° C. The reactor for producing gaseous ammonia can either be a thermal reactor or a high pressure plasma device.

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