• continuous clay soil oil refining to machine
  • continuous clay soil oil refining to machine
  • continuous clay soil oil refining to machine
  • continuous clay soil oil refining to machine
  • What is sulfuric acid-bearing clay refining?
  • Sulfuric Acid-Bearing Clay Refining and Separation. Sulfuric acid-bearing clay refining technology regenerates waste oils with deeper deterioration, which can remove oxygenates, sulfur compounds, and nitrogen compounds in waste oils, and gums, asphaltenes, and asphalt are produced during use.
  • How much oil remained in clay matrix after acid-clay process?
  • It is estimated that the residual oil remained in clay matrix after acid-clay process may range from 30 up to 35 % of final clay weight. The selected practice of oil extraction from discarded material involves washing spent clay with an organic solvent, and a one-factor-at-a-time optimization method used to specify the experimental factors.
  • Is lubricating oil re-refining a waste?
  • Indeed, the spent bleaching clay, a type of solid wastes produced in this traditional re-refining process, usually dumped in landfills without any treatment and leads to environmental risks. In this paper an Iranian used lubricating oil re-refining unit (with annual production of 3,000 tons) was selected as a case study.
  • What is the production rate of lubricating oil re-refining unit in Iran?
  • In this paper an Iranian used lubricating oil re-refining unit (with annual production of 3,000 tons) was selected as a case study. The production rate of spent clay in mentioned unit is approximately 360 tons per year.
  • Can vacuum distillation re-refining used lubricant oils be sustainable?
  • The research presents a methodological exploration of re-refining used lubricant oils, driven by the urgency of sustainable development. The vacuum distillation-based approach, involving sequential operations of Dehydration, Vacuum Distillation, and Lube Oil Distillation and Condensation, emerges as a promising solution.
  • Can MEK wash clay?
  • It was observed that MEK could wash the clay surfaces and recover its bleachability to a large extent. In optimum conditions, i.e. the solvent volume to clay weight ratio of 4 and extraction time of 5 minutes, the extraction efficiency about 65% was achieved though the quality of recovered oil was rather poor.