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P04 Oil Ref KV Apr2014 GSOK - IEA-ETSAP
iea-etsap.orgdistillation is the first main refining step where the crude oil is heated to 300°C-350°C to distillate the more volatile components (diesel and kerosene). The atmospheric residue is then further distilled under vacuum (500°C-560°C) to yield further volatile products