Patent · US Active

Apparatus and method for optimizing exhaust gas burn out in combustion plants

US8048381B2 · kind B2 · utility

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7References

4Claims

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Assignee

Forschungszentrum Karlsruhe GmbH · DE

Inventors

Hans Hunsinger · Weingarten, DE
Hubert Keller · Amberg, DE
Stephan Zipser · Karlsruhe, DE
Hans-Heinz Frey · Reilingen, DE

Key dates

Filing date	Feb 24, 2006
Grant date	Nov 1, 2011
Priority date	—
Expiry date	Apr 18, 2030

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF23N2229/20
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

In an apparatus and method for optimizing the exhaust gas burnout in combustion plants having a solid bed combustion zone and an exhaust gas burnout zone wherein oxygen-containing gas is injected into the exhaust gas flow in the burnout zone by way of a plurality of secondary gas injection nozzles, wherein each injection nozzle is provided with a control valve, means are provided for determining the presence of incompletely burned exhaust gas components in the exhaust gas burn out zone and a control unit converts the signals into control signals by which the valves or group of valves are individually controlled so as to inject oxygen containing gas into the exhaust gas flow in order to concentrate the injection of the oxygen containing secondary gas into the areas in which incompletely burned exhaust gas components are present.

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