Apparatus and treatment method suitable for purification treatment of oily sludge pyrolysis absorption gas
A technology for gas purification and degassing, which is applied in chemical instruments and methods, combined devices, separation methods, etc., and can solve the problems of low recovery and utilization.
Active Publication Date: 2016-03-30
LIAONING HUAFU ENVIRONMENTAL ENG
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[0003] However, the high-temperature mixed gas separated from the thermal desorption process in the thermal desorption chamber contains dust, hydrocarbons that can be condensed into liquids, and non-condensable volatile hydrocarbon gases. Produced gas has little effect on recycling
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[0022] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0023] Such as figure 1 As shown, the device suitable for the purification of oily sludge pyrolysis and absorption gas in the present invention includes a vacuum jet pump 2, a centrifugal pump 3, a three-phase separator 4, a cyclone separator 5, a dehumidifier 6, and a pipeline filter 7. It is used to purify and treat the high-temperature mixed gas separated by the thermal desorption chamber 1 during the thermal desorption process. Wherein: the vacuum jet pump 2 communicates with the thermal desorption chamber 1 through a pipeline, and communicates with the centrifugal pump 3 and the three-phase separator 4 at the same time, and the desorption gas outlet of the three-phase separator 4 communicates with the cyclone separator 5 through a pipeline, and the cyclone The desorption gas outlet of the flow separator 5 is communicated with the dehumid...
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The invention relates to a device for purifying oily sludge thermally desorbed gas and a method for purifying the oily sludge thermally desorbed gas. The device comprises a centrifugal pump, a vacuum jet pump, a three-phase separator, a cyclone separator, a dehumidifier and a pipeline filter, wherein the vacuum jet pump is communicated with a thermal desorption chamber through a pipeline, and simultaneously is communicated with the centrifugal pump and the three-phase separator, a desorption gas outlet of the three-phase separator is sequentially communicated with the cyclone separator, the dehumidifier and the pipeline filter by pipelines, and a desorption outlet of the pipeline filter is used for direct outputting; isolate outlets of the cyclone separator, the dehumidifier and the pipeline filter are communicated with the three-phase separator; and the centrifugal pump is communicated with the three-phase separator. Based on the thermal desorption principle and by using the jet flow principle of the vacuum jet pump, the desorbed gas is fully mixed with circulating water, and then is cooled and washed by the circulating water to finish the cooling, washing and oil-water separation of the desorbed gas under the action of the vacuum jet pump, the treated volatile hydrocarbon gas returns to a heating furnace for reutilization, and the cooling water is recycled through the centrifugal pump.
Description
technical field [0001] The invention relates to a device and a treatment method suitable for pyrolysis and absorption gas purification treatment of oily sludge. Background technique [0002] The traditional oilfield sludge treatment methods are oil sludge coal, combustion and thermal elution of oil. Among them, due to the small demand for oil sludge coal production, although it is currently used, it cannot solve the problem of large accumulation on site; the flue gas produced by the combustion method has a large secondary pollution to the environment, and the current domestic environmental protection law has not advocated it. Use: The hot-washing oil method has been used in Daqing Oilfield in recent years, but at present, the main reason is that the effect is not good, and the oil content of the sludge after hot-washing is still difficult to reach the harmless index required by the state. For this reason, the thermal desorption method is widely used at present, and this the...
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IPC IPC(8): B01D50/00B01D53/00B01D53/18B01D53/26
Inventor 李森朱学文陈广彬陈勇王晓东李连生
Owner LIAONING HUAFU ENVIRONMENTAL ENG