... Carbon to remove gas and color waste diesel oil recycling machine Oil Recycling Application: Series HCY Waste Oil Pyrolysis (Oil ... making the regenerated oil color close to new oil color, recover the oil performance, after the regenerating process, the final products ... distillation process, HCY process is a Pyrolysis way. 4, HCY machine is friendly environment, it produces less sludge, the sludge is ...