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胜利化工厂顺丁橡胶装置是采用溶液聚合方法生产顺丁橡胶的。该装置设一个回收工段作为配套工程,溶剂经过精制循环使用。在胜利化工厂,回收工段是一个用汽大户,耗蒸汽量占全厂总蒸汽耗量的20％以上。因而,降低蒸汽耗量,提高热能利用率,是当前节能的一个方向。一、溶剂回收过程简述: 为了得到聚合级质量的溶剂以供聚合反应之用,目前是采用精馏方法脱除溶剂中的轻组份杂质和重组份杂质。工艺流程见下图所示: T_1:溶剂脱水塔 T_2:脱重组份塔 E_1:热交换器 E_2:冷凝器
Victory Chemical Plant Butadiene rubber plant is produced by solution polymerization of butadiene rubber. The device set up a recovery section as a supporting project, the solvent after refining cycle. In Victory Chemical Plant, the recovery section is a major consumer steam, steam consumption accounts for more than 20% of the total steam consumption of the whole plant. Therefore, reducing steam consumption, improve heat utilization, is the current direction of energy saving. First, a brief description of the solvent recovery process: In order to obtain the polymerization grade quality of the solvent for the polymerization reaction, the current distillation method is used to remove the solvent light component impurities and heavy impurities. The process flow is shown in the following figure: T_1: solvent dehydration tower T_2: stripping section tower E_1: heat exchanger E_2: condenser