A vocs recovery system and method integrating absorption, desorption and recovery

A recovery system and desorption technology, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve the problems of reduced adsorption performance and service life, high recovery and operating costs, and large consumption of absorbents, reducing energy consumption. The effect of reducing energy consumption and operating costs, and improving the efficiency of heat utilization

A recovery system and desorption technology, applied in chemical instruments and methods, separation methods, gas treatment, etc., can solve the problems of reduced adsorption performance and service life, high recovery and operating costs, and large consumption of absorbents, reducing energy consumption. The effect of reducing energy consumption and operating costs, and improving the efficiency of heat utilization

CN111036041BActive Publication Date: 2021-01-01CHANGZHOU UNIV
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  • A vocs recovery system and method integrating absorption, desorption and recovery
  • A vocs recovery system and method integrating absorption, desorption and recovery
  • A vocs recovery system and method integrating absorption, desorption and recovery

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[0051] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0052] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0053] Such as figure 1 A kind of VOCs treatment system of the present invention comprises

[0054] Water washing unit: connected with the self-coupling pre-cooling unit, used for water washing of VOCs intake air;

[0055] Self-coupling pre-cooling unit: connected to the low-temperature absorption unit, used to condense the VOCs gas after water washing;

[0056] Low-temperature absorption unit: connected to the high-temperature desorption unit through the heat exchanger 20, used to ...

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Abstract

The invention discloses a VOCs recovery system and method that integrates absorption, desorption and recovery. The recovery system includes a water washing unit: connected to a self-coupling pre-cooling unit, used to wash VOCs intake air; a self-coupling pre-cooling unit: connected to To the low-temperature absorption unit, used to condense the VOCs gas after washing; the low-temperature absorption unit: connected to the high-temperature desorption unit through the second heat exchanger, used to absorb the condensed VOCs gas; the high-temperature desorption unit: through the heat exchanger 3. Connected to the low-temperature recovery unit for desorption of VOCs gas after low-temperature absorption; low-temperature recovery unit: connected to the low-temperature absorption unit for recovery of liquefied VOCs, and retransmitting unliquefied VOCs to the low-temperature absorption unit for processing . The recovery system of the invention not only has high energy saving, but also realizes the recycling of the absorption liquid.

Description

technical field [0001] The invention belongs to the field of VOCs recovery and treatment, and in particular relates to a VOCs recovery system and method integrating absorption, desorption and recovery. Background technique [0002] In various industrial production and related processes, a kind of volatile organic compounds, namely VOCs (volatileorganic compounds), often appears. In addition to carbon and hydrogen, its molecular structure also contains oxygen, nitrogen, sulfur, and chlorine. Society and enterprises have brought many serious hazards. For example, when a large number of VOCs are evaporatively discharged, they float and gather on the surface space due to their high density, which not only easily causes fire and explosion hazards, but also stimulates the human respiratory tract, causing cancer and other hazards. In addition, it is also a The main reactants produced by photochemical smog cause serious harm to ecology and the environment. my country has limited oi...

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Application Information

Patent Timeline
01 Jan 2021
Publication
CN111036041B
IPC
B01D53/18; B01D53/14
CPC
B01D53/18; B01D53/1487; B01D53/1425; B01D53/1406; B01D2257/708; Y02A50/20
Inventors
黄维秋; 王鑫雅