Catalytic oxidation system applied to industrial exhaust gas treatment

Abstract

The invention provides a catalytic oxidation system applied to industrial exhaust gas treatment. The catalytic oxidation system comprises a heat exchanger, a heater, a catalytic reaction furnace and a catalysis bed arranged in the catalytic reaction furnace, wherein the heat exchanger is a heat exchange place used for purified high-temperature gas and exhaust gas in order to preheat the exhaust gas; the heater further heats the preheated exhaust gas; the gas inlet channel of the heat exchanger, the gas inlet channel of the heater and the gas inlet of the catalytic reaction furnace are connected in a seal manner through pipelines to form an exhaust gas inlet channel of the whole system; the gas outlet of the catalytic reaction furnace, the gas outlet channel of the heater and the gas outlet channel of the heat exchanger are connected in a seal manner through pipelines to form a purified gas outlet channel of the whole system; and the catalysis bed is divided into a plurality of cells. The catalytic oxidation system heats the exhaust gas in a smallest possible space to a reaction temperature and realizes internal heat exchange of the gas in the flowing process, so the catalytic oxidation system has the advantages of high heating efficiency, low energy consumption, high airtight property and full reaction of the exhaust gas.

Description

technical field [0001] The invention belongs to the technical field of environmental protection equipment, and specifically relates to a catalytic oxidation system applied to industrial waste gas treatment, which can effectively treat specific gases through the action of catalysts Background technique [0002] Generally speaking, in order to have a chemical reaction between the catalyst and the exhaust gas, the catalytic oxidation system needs to heat the catalyst or the air to reach the ambient temperature required for the catalytic reaction. In the traditional way, the electric heating rod is often placed directly in the catalyst to heat the catalyst to reach the temperature required for the catalytic reaction. The advantages of this heating method are direct, efficient, and low heat loss, but the disadvantage is that the catalyst is not evenly heated. Because the temperature of the catalyst close to the electric heating rod is high or even burst due to the high temperatu...

AI Technical Summary

Problems solved by technology

The advantages of this heating method are direct, efficient, and low heat loss. The disadvantage is that the catalyst is not evenly heated.

Because the temperature of the catalyst close to the electric heating rod is high or even burst due to the high temperature, while the temperature of the catalyst far away from the electric heating rod is low or even does not reach the temperature required for the reaction, so the overall catalyst is heated unevenly in the end, and the catalytic reaction effect not obvious

[0003] Usually, the catalyst is evenly filled in the catalytic bed when it is just loaded into the catalytic bed, but in fact, due to gravity, air flow and other reasons, during the catalytic oxidation process, the catalyst will roll in the catalytic bed, resulting in gaps between the catalysts , at the gap, the air resistance is small, so that the unreacted exhaust gas is directly discharged from the gap without reaction, resulting in low efficiency of exhaust gas treatment

[0004] In addition, the air duct of the usual catalytic oxidation system is not specially designed, so the gas after the catalytic reaction is often at a high temperature, and special equipment needs to be used to cool the hot gas before it can be discharged into the air, which will directly lead to system failure. further increase in consumption

[0005] Finally, most catalytic oxidation systems are often used in the production and manufacture of chemical products, and their equipment and catalysts are in a static and relatively pure environment, while the structural design of catalytic oxidation systems used for exhaust gas treatment is more complicated

Images