Waste-lubricant regeneration and diesel production device

Abstract

A waste-lubricant regeneration and diesel production device is mainly composed of an evaporation catalyst (A), a preheat fractionator B1, a preheat frationator B2, a heat collector (35), a desulfurizer (36), a flame arrester (39), a vacuum asphalt tank (12), a raw material tank (42), a vacuum pump (41), a burner (31) and an oil refining system. Compared with the prior art, the waste-lubricant regeneration and diesel production device used for recovering and regenerating waste lubricant is high in recovery rate and good in oil quality; exhaust emission meets discharge standards, pollution to environment is avoided, and energy is saved more than 70%; meanwhile, a catalytic evaporator is an external heater, electric heating tubes in the heater are operated in turn, mutual washing and descaling and decoking maintenance function is achieved, service life is prolonged, convenience in replacement and maintenance is realized, and regeneration period of the catalyst is prolonged more then 10 times.

Description

technical field [0001] The invention relates to a device for regenerating waste lubricating oil and producing diesel oil, belonging to the technical fields of environmental protection and energy. Background technique [0002] At present, the existing method of producing diesel oil from waste lubricating oil is to first distill the waste engine oil, add a certain amount of acid to the distillate to stir and then let it stand still, then add a certain amount of lye to the supernatant and let it stand still after stirring. The supernatant is light diesel oil. The advantage of this method is that it is simple, but the recovery rate is low, the waste of resources is large, and the environment is seriously polluted. As we all know, waste lubricating oil with an annual production capacity of more than 10 million tons in my country has become an important source of pollution. Therefore, designing a waste lubricating oil regeneration and diesel production device with a high recovery ...

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Problems solved by technology

[0002] At present, the existing method of producing diesel oil from waste lubricating oil is to distill the waste engine oil first, add a certain amount of acid to the distillate to stir and then let it stand still, then add a certain amount of lye to the supernatant and let it stand still after stirring. The supernatant is light diesel oil. The advantage of this method is that it is simple, but the recovery rate is low, the waste of resources is large, and the environment is seriously polluted.

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