Sectional centralized treatment system for disperse VOCs of petrochemical industry

Abstract

The invention provides a sectional centralized treatment system for disperse VOCs of the petrochemical industry. The sectional centralized treatment system is characterized in that the technical scheme comprises the following steps: collecting oil gas type storage tank gases and oil loading / unloading type gases in a tank area and feeding into an oil gas recycling device; recycling the oil gases and feeding the effluent gases into a washing tower; gathering the effluent gases of acid-base type storage tanks such as an ammonia water tank and a sodium hydrosulfide storage tank, and conveying into the washing tower; performing primary treatment on the effluent gases in a biochemical tank shop by an activated carbon adsorption tank, and conveying into the washing tower; conveying waste gases in a sewage shop to a gas inlet pipe of the washing tower; conveying the acid-base type effluent gases of a loading / unloading station to the gas inlet pipe of the washing tower; conveying the gases of all sections into an acid pickling tower and then an alkaline liquid washing tower; finally, performing up-to-standard discharge through the activated carbon adsorption tank. According to the invention, the gases different in type, property and position are subjected to sectional special treatment and then centralized treatment and discharge according to the prior art and existing problems, and the treatment range and treatment effect on VOCs are effectively improved.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, and further relates to the processing technology of volatile organic compounds, in particular to a segmented centralized processing system for dispersing VOCs in the petrochemical industry. Background technique [0002] VOCs treatment is a necessary technical means to avoid environmental pollution in the chemical industry. As the country pays more and more attention to environmental protection, how to manage VOCs emissions in the petrochemical industry in a more detailed manner at this stage has become an important technical issue for many enterprises. At present, most petrochemical industries can only treat one or two kinds of gases in a single way for various VOCs treatment such as storage tanks, loading and unloading trucks, and sewage treatment, and cannot treat four, five or even more gases in petrochemical plants. However, the cost of managing a set of mature equipment in ...

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Problems solved by technology

[0003] The purpose of the present invention is to aim at the technical defects of the prior art, and provide a segmented centralized processing system for dispersed VOCs in the petrochemical industry, so as to solve the problem that VOCs in petroleum and chemical plant areas have various sources and different components, so it is difficult to achieve centralization Dealing with technical issues

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