and filtration to adsorb impurities and color in regenerated oil. after being filtered by the decolorizing sand, the oil product becomes clear, bright and removes the sulfide in the oil, so that the quality of the oil product is improved. it is the decolorization and adsorption product currently preferred...
and propylene can also be produced directly by cracking crude oil without the need of using refined products of crude oil such as naphtha. [ ] [ ] oil refineries are typically large, sprawling industrial complexes with extensive piping running throughout, carrying streams of fluids between large chemical...