Treatment method for removing benzene series in petrochemical industrial waste gas

A technology for industrial waste gas and treatment methods, which is applied in the direction of gas treatment, chemical instruments and methods, separation methods, etc., can solve the problems that the treatment effect is difficult to meet the emission requirements, high operation and maintenance costs, and large initial investment, etc., to achieve a wide range of benefits Popularization and application, good treatment effect, relatively small area of ​​equipment

Active Publication Date: 2016-09-21
东营国安化工有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0017] At present, the waste gas benzene series treatment methods commonly used in my country generally have disadvantages such as large initial investment, hi

Method used

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  • Treatment method for removing benzene series in petrochemical industrial waste gas
  • Treatment method for removing benzene series in petrochemical industrial waste gas

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Embodiment Construction

[0034] like figure 1 As shown, the treatment method for removing benzene series in petrochemical industrial waste gas, the petrochemical industrial waste gas containing benzene series enters the waste heat exchanger 1 through the gas pipeline, where the overheated waste gas is cooled and stabilized through heat exchange, and obtained The remaining heat is available, and the outlet of the waste heat exchanger 1 is connected to the gas overheating protection device 2 through the gas pipeline. The outlet of the gas overheating protection device 2 is connected to the thermal gas mass flow meter 3 through the gas pipeline, which can monitor and record the exhaust gas flow, flow rate and other information in real time. The thermal gas mass flow The outlet of meter 3 is connected to the mixed gas flow regulating valve 4 through the gas pipeline, and the actual concentration of benzene series in the exhaust gas is adjusted by introducing air, and the exhaust gas is accurately diluted ...

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Abstract

The invention discloses a treatment method for removing benzene series in petrochemical industrial waste gas. The waste gas sequentially passes through a waste heat exchanger, a gas overtemperature protection device, a thermal type gas mass flow meter, a mixed gas flow control valve, a bag filter, a tungsten coil surface activation-ozonation treatment device, a flue gas washing and purifying tower and an induced draft fan to be treated. Specific surface activation characteristics of ozone on the surface of metal elementary substance is creatively used, when a tungsten coil is in a power-on hot state, ozone can fast release activated oxygen atoms on the surface of the tungsten coil to generate a strong oxidization environment on the tungsten surface, when the benzene series and other molecules containing a conjugative effect C-C bond are in the strong oxidization environment, the conjugative C-C bond will be broken by the activated oxygen atoms, benzene series molecules are finally oxidized and decomposed into H2O, CO2 and other inorganic molecules, and the purpose of removing the benzene series in the waste gas is achieved.

Description

technical field [0001] The invention relates to a treatment method for removing benzene series in petrochemical industrial waste gas, which belongs to the field of waste gas treatment in environmental protection. Background technique [0002] Benzene is a general term for benzene and its derivatives. The benzene series in the broad sense includes all aromatic compounds, and the benzene series in the narrow sense refers to the benzene ring-containing compounds that have a certain distribution in the human production and living environment and cause harm to the human body, including BTEX. [0003] Human extraction of benzene series can be traced back to the 19th century. In 1825, British scientist Faraday (Faraday) used distillation to separate high-purity benzene from the pyrolysis products of fish oil and other similar substances, calling it "heavy carbon compound of hydrogen", and determined its basic physical properties and chemical components. Since then, substances su...

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Application Information

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IPC IPC(8): B01D50/00B01D53/76B01D53/72
CPCB01D46/023B01D46/54B01D53/1493B01D53/44B01D53/72B01D53/74B01D53/75B01D53/76B01D2251/104B01D2252/103B01D2258/0283B01D2257/708B01D2257/7027B01D2258/02B01D46/62B01D50/60
Inventor 缪琼华
Owner 东营国安化工有限公司
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