Temperature-controllable organic exhaust gas catalytic combustion treatment device

Abstract

The invention discloses a temperature-controllable organic exhaust gas catalytic combustion treatment device which comprises an exhaust gas storage tank, a pretreatment unit, a preheating unit and a catalytic combustion unit, wherein the preheating unit comprises a heat exchanger and a preheater which are sequentially connected; the heat exchanger comprises a low-temperature pipeline and a high-temperature pipeline; the catalytic combustion unit comprises a fixed bed catalytic reactor and a temperature detector; the temperature detector is installed at a gas inlet of the catalytic combustion unit; the fixed bed catalytic reactor comprises a catalyst support and an active component; the catalyst support is in a ceramic honeycomb structure; and the active component is rare-earth oxides. The temperature-controllable organic exhaust gas catalytic combustion treatment device has the advantages of controllable reaction temperature, cheap and accessible catalyst, high durability and safety, energy saving and environment friendliness, and is suitable for popularization and use in organic exhaust gas treatment.

Description

technical field [0001] The invention relates to a temperature-controllable organic waste gas catalytic combustion treatment device, which belongs to the field of waste gas treatment. Background technique [0002] Catalytic combustion is the use of catalysts at low temperatures (200-400°C) to achieve complete oxidation of organic matter. Therefore, it consumes less energy, is easy to operate, is safe, and has high purification efficiency. In terms of purification, such as chemical industry, spray paint, insulating materials, enameled wire, paint production and other industries are widely used, because the catalysts for the catalytic combustion of organic matter are mostly noble metal (mainly platinum and palladium) catalysts. However, due to the high price of noble metal catalysts and the lack of resources, the research on more economical new catalysts has become a new development direction; in addition, catalysts have a catalytic activity temperature, which is called catalys...

AI Technical Summary

Problems solved by technology

However, due to the high price of noble metal catalysts and the lack of resources, the research on more economical new catalysts has become a new development direction; in addition, catalysts have a catalytic activity temperature, which is called catalyst light-off temperature for catalytic combustion. Catalytic combustion can only be carried out when the temperature of the bed layer reaches the light-off temperature. Too low temperature will also make the catalytic reaction rate too low. Therefore, temperature control is a problem that needs to be solved in the catalytic reaction.

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