浓硫酸洗涤苯精制工艺节能环保问题的实践及探讨

Environmental Protection in Benzene Washing Process by Concentrated Sulfuric Acid

本文主要介绍了酸洗苯精制工艺生产实践中遇到的主要问题及采取的措施,工艺废水的综合利用;降低硫酸消耗;纯苯塔回流比的优化等,进行了实践并取得了良好的效果。并对再生酸、酸焦油的处理及苯油气回收进行了探讨。

To introduce the main problems in benzene washing process by concentrated sulfuric acid. With good effect, some countermeasures are put forward, e.g. comprehensive utilization of process waste water, decrease sulfuric acid consumption, optimization of reflux ratio of purified benzene, etc. To discuss the treatment of reclaimed acid, the treatment of acid tar and recovery of benzene oil-gas.