VOCs purification system for petrochemical industrial waste gas

Abstract

The invention discloses a VOCs purification system for a petrochemical industrial waste gas. The system comprises a waste heat exchanger, an overheating protection device, a thermal type gas mass flowmeter, a mixed gas flow control valve, a cloth bag type dust catcher, a pulse ultraviolet activation-microbial degradation reactor, a flue gas washing purification tower, and an induced fan. The system creatively utilizes the adaptability and the biological activity degradation effect of verticillium lecanii KM9083 strain on VOCs, the VOCs component in waste gas is finally decomposed into H2O andCO2, and the biodegradation efficiency of VOCs can satisfy the requirement of purification treatment of the industrial waste gas. At the same time, by utilizing the anti-ultraviolet radiation protection function of benzophenone-hexamethylphosphoryltriamide combination, the agent is added to the verticillium lecanii KM9083 strain in advance to effectively prevent the biological inhibition effect ofultraviolet rays on the strain.

Description

technical field [0001] The invention relates to a VOCs purification system for petrochemical industrial waste gas, and belongs to the field of waste gas treatment in environmental protection. Background technique [0002] VOCs is an abbreviation for volatile organic compounds. Typical VOCs emission sources can be divided into anthropogenic emission sources (including stationary sources and mobile sources) and natural emission sources (including biological sources and non-biological sources). Production process, product consumption behavior and motor vehicle exhaust. The composition of VOCs is complex and harmful to the human body. The special odor can cause various discomforts to the human body, and it is toxic and irritating. Many VOCs are known to have neurotoxicity, kidney and liver toxicity, and even carcinogenic effects. They can damage blood components and the cardiovascular system, cause gastrointestinal disorders, induce diseases of the immune system, endocrine sys...

AI Technical Summary

Problems solved by technology

The advantages of the membrane separation method are good selectivity, strong adaptability, low energy consumption, no phase change, and useful components can be recovered; the disadvantages are large investment and strong dependence on the membrane; higher requirements for membrane surface control, membrane Separation device operating requirements are high

[0010] At present, the organic waste gas treatment methods used at home and abroad include absorption, adsorption, condensation, combustion and biotechnology, etc., but they all have the disadvantages of large investment, long cycle, high operating cost, and the treatment effect is difficult to meet the increasingly stringent requirements. emission requirements

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