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A Story Of White Washing Black Oil: Chongqing Tongrui Gives Waste Oil A New Life

Mar 28, 2026

    Stop worrying about that barrel of black, waste lubricating oil! It's not industrial waste, but a "resource in the wrong place." With over 95% base oil components, waste oil is technically feasible for regeneration.

 

    Chongqing Tongrui Filtration Equipment Manufacturing Co., Ltd. is the expert surgeon in this "waste-to-treasure" operation. Addressing persistent problems like excessive acid value, emulsification, and impurity buildup in waste oil, Tongrui's ZJD-R series regeneration oil filter employs a "combination punch": powerful vacuum flash evaporation for dehydration and degassing, precise acid removal and decolorization through polymer adsorption, and precision filtration to intercept micron-sized particles.

Oil Purifying Machine

    After this deep physicochemical purification, the oil's acid value drops below 0.03 mg KOH/g, its color is restored to clarity, and its physicochemical indicators approach those of new oil.

 

    This is not only a victory in cost reduction and efficiency improvement (costing only 1/5 of purchasing new oil), but also a green practice of the "dual-carbon" strategy. Choosing Tongrui means choosing to give every drop of oil a second life.

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