The research progress of waste oil regeneration technologies such as sulfuric acid-clay refining process,solvent extraction refining process,hydrogenation regeneration process,thin film evaporation technology,and membrane treatment technology are introduced.The total production and market consumption of recycled oil are analyzed,and the accounting and analysis method of carbon emission reduction and carbon emission of regenerated oil in the whole lifecycle are summarized.Through comprehensive analysis,it is concluded that the market prospects of the recycled oil industry are relatively broad,with significant environmental and economic value.
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