Method and device for treating high-concentration decahydronaphthalene tail gas
A treatment method and a treatment device technology, applied in the direction of gas treatment, separation methods, chemical instruments and methods, etc., can solve the problem of high comprehensive energy consumption, achieve the effects of reducing energy consumption, avoiding poor adsorption effect, and reducing load
Pending Publication Date: 2019-02-01
武汉旭日华环保科技股份有限公司
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Problems solved by technology
At present, the way to deal with high-concentration decahydronaphthalene tail gas in China is to recover decahydronaphthalene by pressurized condensation method, that is, to pressurize the tail gas to a higher pressure, and at the same time, the condensation section needs to cool the tail gas to a lower temperature to ensure the recovery rate. This method There is a disadvantage of high comprehensive energy consumption
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[0027] combine figure 1 Shown, the treatment device of high-concentration decahydronaphthalene tail gas of the present invention comprises primary condenser 1, heat exchanger 2, secondary condenser 3, the first fan 4, the first solvent tank 5, adsorber 6, heating Device 7, second fan 8, condenser 9, second solvent tank 10, first oxygen concentration detector 11, second oxygen concentration detector 12.
[0028] The gas inlet of the primary condenser 1 is connected to the high-concentration decahydronaphthalene tail gas pipeline, and the gas outlet of the primary condenser 1 is connected with the hot fluid channel of the heat exchanger 2 and the secondary condenser 3 in turn through the pipeline, and the secondary condenser The solvent outlet of 3 is connected to the first solvent tank 5, and the gas outlet of the secondary condenser 3 passes through the cold fluid channel of the heat exchanger 2 and communicates with the tail gas inlet 6.1 of the adsorber 6 through the adsorpt...
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The invention relates to the technical field of exhaust gas treatment, and especially relates to a method and a device for treating high-concentration decahydronaphthalene tail gas. The device for treating high-concentration decahydronaphthalene tail gas comprises a primary condenser, a heat exchanger, a secondary condenser, a first solvent tank, an adsorber, a heater, a secondary condenser and asecond solvent tank; the gas outlet of the primary condenser is sequentially communicated with the hot fluid channel of the heat exchanger and the secondary condenser through a pipeline, the solvent outlet of the secondary condenser is connected with the first solvent tank, and the gas outlet of the secondary condenser is connected with the cold fluid channel of the heat exchanger, and then is introduced into the adsorber through an adsorption pipeline; and the tail gas outlet of the adsorber is sequentially connected with the heater and the condenser, the solvent outlet of the condenser is connected with the second solvent tank, and the gas outlet of the condenser is connected with the heater, and then is communicated with the desorbed gas inlet of the adsorber through a desorbing pipeline. The method and the device for treating high-concentration decahydronaphthalene tail gas have the advantages of low energy consumption, high recovery rate of decahydronaphthalene, and realization ofstandard-reaching emission of the tail gas.
Description
technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a method and device for treating high-concentration decahydronaphthalene tail gas. Background technique [0002] High-performance polyethylene fiber, as an important material related to national military protective equipment and aerospace, is an important new material to promote the development of high-end technology industries. The solvents used to produce high-performance polyethylene fibers include decahydronaphthalene, paraffin oil, paraffin and kerosene, among which the dry route using decahydronaphthalene as a solvent is the best production route, and decalin is used as a solvent to produce high-performance polyethylene Produce decahydronaphthalene tail gas, and the decahydronaphthalene tail gas is mainly nitrogen and decahydronaphthalene gas. At present, the way to deal with high-concentration decahydronaphthalene tail gas in China is to recover decahydronapht...
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IPC IPC(8): B01D5/00B01D53/00B01D53/02
CPCB01D53/002B01D53/02B01D2257/70Y02P70/10
Inventor 胡汉谋唐申阳杨旭东
Owner 武汉旭日华环保科技股份有限公司