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Device and process for recycling organic gas through low-pressure dry-type indirect heating desorption

An organic gas and desorption technology, applied in the separation of dispersed particles, chemical instruments and methods, separation methods, etc., to achieve the effects of easy condensation recovery, avoiding explosion hazards, and good solvent quality

Inactive Publication Date: 2014-09-10
蔡博
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Problems solved by technology

[0004] Based on the traditional problem that the treatment of volatile organic waste gas through microporous materials produces a large amount of separation and drainage and the recovery of water-soluble solvents requires complex distillation, refining and separation, the present invention provides a low-pressure dry-type indirect heating desorption device for recovering organic gases and process, the device and process decompress the adsorber in the desorption stage after adsorbing and purifying the volatile organic waste gas in the adsorber, and indirectly heat the adsorption material, and adopt low-pressure dry-type indirect heating and desorption The method recovers the organic matter in the organic gas discharged from industrial production, solves the problem of a large amount of separation and drainage when the exhaust gas is mixed with water-soluble solvents, prevents secondary pollution, and reduces the pressure of subsequent water treatment. Reduce equipment investment and operating costs for waste gas treatment, and improve the quality of recovered solvents

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  • Device and process for recycling organic gas through low-pressure dry-type indirect heating desorption

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Embodiment Construction

[0027] In Fig. 1, 1 and 2 are adsorbers, there are at least two adsorbers, and the two adsorbers form a circulation system. Adsorbers can also be 3, 4, 5...etc., used in parallel. Multiple series can be used as a group. In this way, the application range of the device of the present invention is wider and more flexible. The whole process can be controlled by PLC program, switch automatically, and alternately carry out the operation of adsorption and desorption (desorption) process.

[0028] Adsorption process:

[0029] Volatile organic gases come from the gas collection system of the production workshop and enter the pre-treatment system (F1) (the gas processed by the system is volatile organic waste gas. The previous treatment equipment is more guaranteed for the safety of the system. At the same time, impurities in the waste gas must be removed to play a role Protect the adsorption material, extend the life of the adsorption material, and ensure that the adsorption materi...

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Abstract

The invention relates to a device and a process for recycling organic gas through low-pressure dry-type indirect heating desorption. Particularly, volatile organic waste gas is adsorbed and purified in an absorber, in the desorption period, the absorber is depressurized, an adsorption material is indirectly heated, and organic matters in the organic gas discharged from industrial production are recycled in a low-pressure dry-type indirect heating desorption mode. The problem that a great deal of separated discharged water is generated in an occasion that recycled and treated discharge water is mingled with a water-soluble solvent is solved, the secondary pollution is prevented, the later water treatment stress is alleviated, the device investment and the operation cost for the waste gas treatment are lowered, and the quality of the recycled solvent is improved. The device and the process belong to the technical field of atmospheric pollution treatment in the sanitary production and energy-saving and environmental-friendly industry.

Description

technical field [0001] The invention relates to a low-pressure dry-type indirect heating desorption device and process for recovering organic gas, in particular to a device and process for absorbing, separating and purifying organic waste gas and air in industrial production through a microporous adsorption material, and indirect heating of the adsorption material combined with low-pressure desorption. The attached organic matter recovery device has an excellent application effect especially in the occasions mixed with water-soluble solvents, and belongs to the technical field of air pollution control in clean production, energy saving and environmental protection industries. Background technique [0002] Air pollution is one of the most prominent environmental problems in my country at present. Industrial organic waste gas is an important source of air pollution, and it is also the precursor of frequent PM2.5 and smog pollution. A large amount of industrial organic waste ga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/02
Inventor 蔡博
Owner 蔡博
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