压差法盐酸深度解吸工艺的研究与应用  

Research and application of pressure difference method for deep desorption of hydrochloric acid

作　　者：郭秀强 常万彬 全小辉 何伟 张芳 庞济林 GUO Xiuqiang;CHANG Wanbin;QUAN Xiaohui;HE Wei;ZHANG Fang;PANG Jilin(Yibin Haifeng Herui Co.,Ltd,Yibin,China)

机构地区：[1]宜宾海丰和锐有限公司,四川宜宾

出　　处：《中国氯碱》2024年第7期26-30,共5页China Chlor-Alkali

摘　　要：介绍了氯乙烯合成副产酸的来源,阐述了盐酸深度解吸技术的工艺原理和技术特点,总结了压差法盐酸深度解吸装置的运行情况。结果表明,装置解吸出的氯化氢气体纯度>99%,解吸后回用水中的氯化氢含量<1%,可全部回用,彻底解决了氯乙烯合成过程中的酸、水不平衡问题。This paper introduces the source of by-product acid from vinyl chloride synthesis,expounds the process principle and technical characteristics of hydrochloric acid deep desorption technology,and summa⁃rizes the operation of differential pressure method hydrochloric acid deep desorption device.The results show that the purity of hydrogen chloride gas desorbed by the device is more than 99%,and the content of hydro⁃gen chloride in the desorbed recycled water is less than 1%,which can be reused completely,and the prob⁃lem of acid and water imbalance in the process of vinyl chloride synthesis is completely solved.

关 键 词：氯乙烯合成 压差法 盐酸深度解吸 

分 类 号：TQ124.42[化学工程—无机化工]