The crude benzene hydrorefining process routes were described. 粗苯是焦炭生產的副產品。
The consumption of crude benzol is obviously reduced by decreasing the extraction temperature properly and it doesn't influence the efficiency of dephenolization. 適當降低萃取操作溫度，可以明顯降低粗苯消耗，而不會影響其脫酚效率。
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