VOCs gas recovery and treatment device and method

Abstract

The invention discloses a VOCs gas recovery and treatment device and method. The VOCs gas recovery and treatment device comprises air blowers, a circulating fluidized bed TCU device, a heat pump system, a valve, a carbon fiber adsorption tank, a condenser, a buffer tank, a pump and a separation tank; and the circulating fluidized bed TCU device comprises a cyclone separator, a fluidized bed TCU device body, the three air blowers and three heat exchangers. Gas introduced by the air blowers is heated by the heat exchangers and then enters the fluidized bed TCU device body, impurities such as water and organic solvent, namely hexane contained in halogenated butyl colloidal particles are separated out and sent to the cyclone separator, after the colloidal particles in the gas are separated, the VOCs gas enters the heat pump system, the heat pump system cools and dehumidifies the VOCs gas, the cold gas containing water and part of the hexane is sent to the buffer tank from the bottom of theheat pump system, the dehumidified VOCs gas enters the carbon fiber adsorption tank, the VOCs gas is adsorbed by the carbon fiber adsorption tank, after adsorption saturation, the adsorption tank ofthe VOCs gas recovery and treatment device is analyzed, then the analyzed hexane gas is condensed and enters the buffer tank, and the gas which is not condensed returns back to the heat pump system.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a VOCs gas recovery treatment device and method Background technique [0002] During the production process of halogenated butyl, volatile organic waste gases (hereinafter referred to as VOCs) will be produced, which can become volatile organic compounds under normal pressure. Such organic volatile compounds will pollute the air and affect human health. [0003] The main component of VOCs gas produced in the production process of halogenated butyl is hexane, which will pollute the environment and threaten human health. It enters the human body through people's breathing and causes damage to human organs. Therefore, the VOCs of our company must be discharged after being treated and qualified. In the environmental impact assessment report of our company's halogenated rubber plant, it is also clearly required that we must control VOCs. [0004] The MSD...

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Problems solved by technology

[0010] (2) Toxicity: low toxicity

[0012] (3) Hazardous characteristics

[0014] The treatment of organic waste gas has been studied for a long time, and some effective control technologies have been developed. These control technologies are mainly divided into two categories, one is a destructive method, which is to convert VOCs gas into CO 2 and H 2 0; the other is a non-destructive method, which is to purify and recycle VOCs. At present, the methods widely used include combustion method, biological method, absorption method, condensation method, etc. These methods are easy to cause secondary pollution, high cost of use, and removal Low efficiency and other shortcomings, it is not easy to promote in enterprises

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