Catalytic Combustion Evaluation Device and Test Method for Volatile Organic Compounds

Abstract

The invention belongs to the technical field of catalyst evaluation and particularly relates to a volatile organic compound catalytic combustion evaluation device and a test method. The volatile organic compound catalytic combustion evaluation device comprises a reactor, the reactor is respectively connected to a gas mass flow meter and a metering pump, the reactor, a heat exchanger, a condenser, a gas-liquid separator, a wet flow meter, a drying pipe and a gas chromatograph are orderly connected to a computer, the heat exchanger is connected to a blower, the gas-liquid separator is connected to a liquid storage tank and an exhaust head is respectively connected to the wet flow meter and the drying pipe. The device has a large filling amount, can be filled with a whole honeycomb-type monolith catalyst, can acquire test data having high authenticity, is conducive to conversion from a laboratory device into an industrial device, is provided with the heat exchanger, fully utilizes heat and reduces laboratory power consumption.

Description

technical field [0001] The invention belongs to the technical field of catalyst evaluation, and in particular relates to a catalytic combustion evaluation device and test method for volatile organic compounds. Background technique [0002] With the increasingly stringent environmental protection, chemical and petrochemical process waste gas containing volatile organic compounds (VOCs), petroleum, chemical product storage tank gas, printing and paint production waste gas, extraction waste gas, wood carbonization waste gas, pharmaceutical factory waste gas, and automobile exhaust And more and more use incineration treatment or catalytic combustion treatment. Compared with the traditional condensation method, absorption method, adsorption method and biological method, the combustion method has a lower impact on VOC S The treatment is more thorough and complete, and it has become the first choice for the treatment of complex pollutant components and high-concentration waste gas...

AI Technical Summary

Problems solved by technology

From the introduction of the two laboratory evaluation devices, P21 and P25, it can be judged that the temperature measurement of the P21 device has defects. Since VOCs will release a lot of heat during catalytic combustion, when the thermocouple is in the catalyst bed, the measured The temperature is higher than the preheating temperature of the material, and the test data cannot directly assist the industrial design; in addition, the loading amount of the catalyst is too small, and it can be judged that the catalyst must be broken before loading, and the device cannot be filled with the honeycomb monolithic catalyst, which is not conducive to the interpretation of the test results. industrial transformation

The P22 device is an intrinsic kinetic device. On the one hand, the catalyst must be broken, and on the other hand, it is always in the constant temperature zone of the reactor. The reaction state is too ideal and cannot simulate the actual industrial situation.

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