Paper mill exhaust gas composition is mainly: methyl mercaptan, dimethyl sulfide, dimethyl disulfide, hydrogen sulfide, dust, formaldehyde, benzene, etc., if not timely exhaust gas treatment will have a certain impact on the workers, the surrounding residents and the environment, what are the paper mill exhaust gas treatment equipment? Here with the Everest blue editorial to understand.
Paper mill waste gas treatment equipment more commonly used water spray tower, UV photolysis oxidation equipment, activated carbon adsorption, catalytic combustion, thermal incineration, zeolite rotor molecular sieve and other technologies. But the frequent use of catalytic combustion and thermal incineration, but also by many emission class enterprises favourite waste gas treatment technology.
Water spray tower: the use of malodour, organic waste gas in some substances soluble in water, so that the malodour, organic waste gas components in direct contact with water, so that dissolved in water to achieve the purpose of removal. Suitable for water-soluble, organically discharged sources of malodour, organic waste gas. Simple process, convenient management, low cost of equipment operation.
UV photolysis oxidation equipment: using special high-energy, high-ozone UV beams to irradiate the waste gas, so that organic or inorganic polymer malodour compounds molecular chain, under the irradiation of high-energy UV beams, and ozone to react with the birth of low molecular compounds, such as CO2, H2O and so on. Low investment cost, wide range of application, high purification efficiency, simple operation, good deodorant effect, good effect on organic waste gas treatment, will not cause secondary pollution.
RCO regenerative catalytic combustion is the use of precious metal catalyst to reduce the activation energy of the reaction between the organic matter in the waste gas and O2, so that the organic matter can be fully oxidised at a lower temperature of 250-350 ℃ born CO2 and H2O, is a flameless combustion, high-temperature oxidation of the gas through the heat exchanger and the new waste gas indirectly heat exchange and then discharged, often used to deal with the regeneration of adsorbent adsorption of the high concentration of waste gas.
Catalytic combustion device mainly consists of heat exchanger, combustion chamber, catalytic reactor, heat recovery system and purification of flue gas emission chimney and other departments, with precious metals palladium, platinum loaded on the cellular ceramics as a catalyst, catalytic combustion rate of 97% or more, catalyst life, catalyst decomposition temperature is low, desorption of the preheating time is short, low energy consumption. This method absorbs the advantages of adsorption method and catalytic combustion method, overcomes the shortcomings of each individual use, is currently the management of organic waste gas in the sea of mature, practical method of paper mill waste gas treatment.
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Guangdong Public Security Bureau No. 44190002006305
