Method for recovering aromatic hydrocarbons in oil with low aromatic hydrocarbon content
The invention relates to a method for recovering aromatic hydrocarbons in oil with low aromatic hydrocarbon content. According to the method, raw oil is subjected to pre-fractionation, extraction, re-extraction, distillation, washing with water and water distillation so as to obtain a mixed aromatic...
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Format: | Patent |
Sprache: | chi ; eng |
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