It was analyzed and discussed the influence factors of the butadiene extractive distillation column in the unit of extract butadiene from C4 fraction.And point out the design cruces of this column.

• 对C4抽提丁二烯装置中丁二烯萃取精馏塔的影响因素进行了分析和讨论,并提出了其设计要点。