A VOCs purification system for petrochemical industrial waste gas

Abstract

The invention discloses a VOCs purification system for petrochemical industrial waste gas. The system includes a waste heat exchanger, a gas overheating protection device, a thermal gas mass flow meter, a mixed gas flow regulating valve, a bag-type dust collector, and pulse ultraviolet activation-microbial degradation Reactor, flue gas washing purification tower, induced draft fan. This system creatively utilizes the adaptability of Verticillium lecanii KM9083 strain to higher concentrations of VOCs and its bioactive degradation effect, and finally decomposes the VOCs components in the exhaust gas into H2O and CO2, and its biodegradation performance on VOCs can meet Purification treatment requirements for industrial waste gas. At the same time, taking advantage of the anti-ultraviolet radiation protection effect of the combination of benzophenone-hexamethylphosphoric triamide, this agent is pre-added to the Verticillium lecanii KM9083 strain, which can effectively prevent the biological inhibition effect of ultraviolet rays on the above-mentioned strains.

Description

technical field [0001] The invention relates to a VOCs purification system for petrochemical industrial waste gas, which belongs to the field of waste gas treatment in environmental protection. Background technique [0002] VOCs is the English abbreviation of volatile organic compounds (volatile organic compounds). Typical VOCs emission sources can be divided into two types: man-made 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 it is very harmful to the human body. The special odor it has can cause various discomforts to the human body, and is toxic and irritating. Many VOCs are known to have neurotoxicity, kidney and liver toxicity, and even carcinogenicity, which can damage blood components and cardiovascular system, cause gastrointestinal disorders...

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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