根据顺丁橡胶装置溶剂走向及平衡情况分析发现，溶剂损耗来源主要集中在尾气、残液排放和油罐排水3个方面。通过选择先进的三釜凝聚技术、改造凝聚釜搅拌、升级改造湿溶剂罐脱水装置、降低聚合配方及优化残分排放操作等手段，可以将溶剂单耗控制在28 kg/t的国内先进水平。

China's cis-1,4-polybutadiene rubber (BR) production plants adopt solution polymerization process with hexane as solvent.At present,the unit solvent consumption lies in a general high level.On the base of solvent routing and balance-analysis,solvent loss mainly happens in three aspects such as end gas,residual liquid discharge and oil tank dewatering.By selecting the advanced three-kettle coagulation technology,renovating the paddle in coagulation tower,upgrading the dehydration device in the wet solvent tank,reducing the polymerization formula and optimizing the residual emission operation,the unit solvent consumption can be controlled at 28 kg per tons of BR,which is China's advanced level.