Catalytic oxidizing device and method for efficiently treating VOCs organic waste gas

Abstract

The invention relates to catalytic oxidizing device and method for efficiently treating VOCs organic waste gas. The catalytic oxidizing device for efficiently treating VOCs organic waste gas comprisesa dry filter, a flame arrester, a heat exchanger, a heater and a catalyzing-oxidizing reactor, wherein the dry filter is connected with the flame arrester, the flame arrester is connected with a coldend inlet of the heat exchanger, the cold end outlet of the heat exchanger is connected with the heater, the heater is connected with the catalyzing-oxidizing reactor, the catalyzing-oxidizing reactor is connected with the hot end inlet of the heat exchanger, and the hot end outlet of the heat exchanger is connected with a chimney. According to the invention, the structure of the catalyzing-oxidizing reactor is improved, so that energy consumption is reduced while device reliability is improved, the catalyst utilization rate and the purification rate of the device for waste gas are ensured; in the operation process of the device, the concentration of the VOCs organic waste gas at the inlet is 0.5-6g / m<3>, the reaction airspeed is SV=5k-30k h<-1>, and the removal efficiency of the device for VOCs can reach 99.5% or above.

Description

technical field [0001] The invention relates to a catalytic oxidation device and method for efficiently treating VOCs organic waste gas. Background technique [0002] Volatile organic compounds (VOCs) are 2 , NO x It is another important pollutant besides, which brings heavy pressure to the environment and life. my country's VOCs have the characteristics of large emissions and complex sources. The coating, printing, chemical and other industries have successively promulgated VOCs emission standards to reduce VOCs emissions. Catalytic-oxidation is an effective means to remove VOCs. VOCs are oxidized to harmless H under the action of heating and catalysts. 2 O and CO 2 . [0003] The core of catalytic-oxidation is the CO (Catalytic Oxidation) reactor and catalyst, which directly determine the processing efficiency and energy consumption of the system. In conventional CO reactors, catalyst units are stacked to form a catalyst bed, and the catalyst bed is arranged in multip...

AI Technical Summary

Problems solved by technology

[0005] The existing catalytic-oxidation reactor for VOCs treatment is characterized in that the reactor is a cuboid cavity, the catalytic bed is assembled by stacking catalyst monomers, and the reactor needs to be equipped with complex variable diameter joints and switching valves. high cost

In addition, there are also problems such as large equipment volume, uneven air distribution, complex reactor structure, catalyst installation, regeneration and replacement inconvenience, etc.

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