CATALYTIC REACTOR FOR PURIFICATION OF GASEOUS OUTBURSTS FROM NITROGEN OXIDE WITH THE HELP OF AMMONIA, COMBINED WITH A SPIRAL COUNTERCURRENT HEAT EXCHANGER-RECUPERATOR Russian patent published in 2005 - IPC

FIELD: chemical industry; catalytic reactors for gaseous outbursts purification.

SUBSTANCE: the offered reactor is pertaining to chemical industry and used for purification of gases from nitrogen oxide impurities by means of ammonia. The reactor has an electrical cabinet of control and a catalytic section which contains plug-in catalytic blocks heated up by plug-in electric heaters based of a foam-metal with a catalytic coating out of metal oxides. The catalytic section is placed inside the spiral countercurrent heat exchanger-recuperator. The spiral of the heat exchanger-recuperator with the catalytic section are located horizontally. The upper part and the ends of a heat exchanger-recuperator are protected by a layer of a heat insulation. In the catalytic section there is a safety fuse de-energizing the catalytic reactor at reaching the temperature of 660°C in the catalytic section. The catalytic blocks have different thickness and sizes of meshes. The electric heaters are divided into two separately adjustable assemblies, pressing to which of the catalytic blocks is exercised under their own weight, and in the catalytic reactor feed a controlled by a small amount of ammonia flow rate meter. The technical result of the invention is an increased effectiveness and safety of the catalytic process.

EFFECT: the invention ensures an increased effectiveness and safety of the catalytic process.

3 dwg, 1 tbl