Treatment device and treatment method of aviation kerosene VOCs (volatile organic compounds)

Abstract

The invention discloses a treatment device and a treatment method of aviation kerosene VOCs (volatile organic compounds). VOCs gas is treated with a three-level condensation and adsorption manner. According to the scheme, the flowing smoothness of a condenser is improved through optimization of the condenser, and long-time and stable operation of condensation equipment is effectively guaranteed; besides, the last uncondensed gas in three-level condensation is taken as a cold medium of a precooler for use, and energy consumption is effectively saved; besides, special activated carbon in an adsorption system is only arranged at the straight cylindrical section of an adsorption tank, the diameter-length ratio of the special activated carbon is controlled in the range of 0.6-0.8, adsorption and desorption can reach the best balance state, waste gas can be uniformly and sufficiently adsorbed, and rapid desorption of the activated carbon can be realized. The treatment device provided by thescheme is reasonable in design, has the advantages of long and stable operation of equipment, environmental protection, energy saving, small floor area and high return on investment of equipment and can realize the good purification effect on the VOCs gas in cooperation with the treatment method.

Description

technical field [0001] The invention relates to a treatment device and method for aviation kerosene VOCs, and belongs to the technical field of recovery and treatment of aviation kerosene VOCs. Background technique [0002] Aviation kerosene is a petrochemical product, which is a mixture of various hydrocarbons mainly aromatic hydrocarbons and olefins. Its main uses are fuels, solvents and insecticide sprays. Aviation kerosene is a colorless slightly yellowish liquid at room temperature, has certain volatility, produces VOCs and has an odor, and is harmful to the human body and the natural environment. [0003] The traditional methods of VOCs treatment at home and abroad include absorption, adsorption, catalytic combustion and biological methods. However, these traditional methods have their own defects, which limit their wide-scale promotion and use. The specific defects are as follows: 1. Absorption and adsorption methods have the problem of secondary pollution of old abs...

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Problems solved by technology

[0003] The traditional methods of VOCs treatment at home and abroad include absorption, adsorption, catalytic combustion and biological methods, etc. However, these traditional methods have their own defects, which limit the wide-scale promotion and use

The specific defects are as follows: 1. Absorption and adsorption methods have the problem of secondary pollution of old absorbents and old adsorbents, and the replacement of absorbents and absorbents is frequent, resulting in high daily operating costs; 2. The catalytic combustion method has a large one-time investment and operating costs Advanced features also limit the use of small and medium-sized enterprises; 3. The equipment for removing VOCs by biological methods occupies a large area, and the removal rate is easily affected by factors such as exhaust gas concentration and exhaust gas toxicity. Existing treatment technologies cannot meet the emission standards

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