초록 ▼

An exhaust gas purification system for denoxing exhaust gases has a converter containing a substance thermolytically separable into NH.sub.3, a feed line connecting the converter with an exhaust gas line for supplying NH.sub.3 into the exhaust gas flow therein, a dosing device in the feed line for d

An exhaust gas purification system for denoxing exhaust gases has a converter containing a substance thermolytically separable into NH.sub.3, a feed line connecting the converter with an exhaust gas line for supplying NH.sub.3 into the exhaust gas flow therein, a dosing device in the feed line for dosing the NH.sub.3 to be introduced into the exhaust gas flow, a heatable cold-start store connected to the feed line between the converter and dosing device for providing the substance during starting of a combustion unit connected to the exhaust gas line, an air feeding device having two air conduits provided with valves wherein one conduit is connected to the feed line between the cold-start store and dosing device and the other conduit is connected to a mixing chamber located in the feed line after the dosing device, and a reservoir container for storing the substance connected to a filling pipe terminating in the converter.

대표청구항 ▼

[ What is claimed is:] [1.]1. Exhaust gas purification system for denoxing exhaust gases of combustion units on an SCR catalyst comprising a heatable pressure-tight converter in which a substance or a corresponding substance mixture, thermolytically separating NH.sub.3, is contained, an NH.sub.3 sto

[ What is claimed is:] [1.]1. Exhaust gas purification system for denoxing exhaust gases of combustion units on an SCR catalyst comprising a heatable pressure-tight converter in which a substance or a corresponding substance mixture, thermolytically separating NH.sub.3, is contained, an NH.sub.3 store for the intermediate storage of NH.sub.3 thermolytically separated from the substance or the substance mixture, a feed line connecting the converter with the exhaust gas line for supplying NH.sub.3 into the exhaust gas flow, and a dosing device integrated into the feed line, for dosing the quantity of NH.sub.3 to be introduced into the exhaust gas flow, characterized in that the converter is encompassed by an H.sub.2 O jacket, which H.sub.2 O jacket is formed by a foamed material filled with H.sub.2 O.