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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Zusammenfassung: | 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 hydrocarbon product. The method has the advantages of mild operation conditions, low comprehensiveenergy consumption and good dearomatization effect, and is applicable to recovery of aromatic hydrocarbons from a mixture with low aromatic hydrocarbon content.
本发明涉及种回收低芳烃含量油中芳烃的方法。原料油经预分馏、萃取、反萃取、蒸馏、水洗、水分馏操作后,得到混合芳烃产品,本方法操作条件缓和、综合能耗低、脱芳效果好,适于从低芳烃含量混合物中回收芳烃。 |
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