섬유

re-refining makes quality oils

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 341
a re-refining process is described that effectively removes contaminants from used automotive lubricating oil and returns the oil to a quality equivalent to oils produced from virgin stocks. this process incorporates a solvent precipitation step to reduce coking and fouling in the subsequent fractional distillation. blending and formulation with additives produce a finished oil that has successfully passed engine sequence tests for service se requirements. byproducts from this process are neutral and usable as asphalt products or as a fuel in the processing facility. 13 refs
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