针对乙腈法抽提丁二烯流程中脱轻脱重单元高能耗问题，提出了隔壁塔热泵精馏新工艺。采用Aspen Plus软件对新工艺进行严格稳态模拟，研究考察了进料位置、隔板位置、分配比、侧线采出位置和压缩机压缩比对产品质量和能耗的影响。优化后的隔壁塔热泵精馏工艺最佳操作条件为：进料位置为第34块理论板，隔板顶部位置为第9块理论板，隔板底部位置为第59块理论板，分配比为0.17，侧线采出位置为第25块理论板，压缩机压缩比为2.24。完成相同的分离任务，脱轻脱重单元新工艺比传统工艺节能58.9%。

A new process using heat pump distillation in a dividing wall column is proposed to address the high energy consumption of the de-light and de-heavy unit in the acetonitrile-route butadiene extraction process.Aspen Plus software is utilized to carry out rigorous steady-state simulation on this process.The effects of feed position, partition position, splitting ratio, sideline extraction position, and compression ratio for compressor on product quality and energy consumption are analyzed.The optimized operating conditions for the heat pump distillation process in the dividing wall column are determined as follows:the feed position is at the 34th theoretical plate, the top of the partition is at the 9th theoretical plate, the bottom of the partition is at the 59th theoretical plate, the splitting ratio is 0.17, the sideline extraction position is at the 25th theoretical plate, and the compression ratio of compressor is 2.24.This new process in the de-light and de-heavy unit can save 58.9% of energy than the conventional process when the same separation task is finished.