摘要
氯碱化工涉及腐蚀性强的酸碱介质,从而导致相关设备存在严重腐蚀问题。文章通过对氯碱化工中典型工段主要设备工艺操作参数、介质和材质特点分析,识别建立了盐水精制及电解、氢氯处理及氯化氢合成、碱液蒸发及固碱、氯乙烯合成及精馏工段基于流程的损伤分布图。该分布图对氯碱化工基于流程的安全操作边界确定、腐蚀风险演化规律的明确和腐蚀风险的防控具有重要意义。
Chlor-alkali industry generally contains the mediums with strong corrosive acid and base,which bring about serious corrosion of related equipment.By analyzing the process op⁃eration parameters,medium and material characteristics of the main equipment in each typical sec⁃tion,this article identified and established the process-based damage modes distribution diagrams of typical sections,including brine refining and electrolyzation,hydrogen chloride treatment and synthesis,alkali evaporation and solid alkali,vinyl chloride synthesis and rectification.It is ben⁃eficial for the determination of the safe operation boundary,the definition of the risk evolution law and the prevention and control of corrosion risk in chlor-alkali chemical industry.
作者
刘娟波
何萌
韩志远
陈昇
康昊源
谢国山
LIU Juanbo;HE Meng;HAN Zhiyuan;CHEN Sheng;KANG Haoyuan;XIE Guoshan(Technology Innovation Center of Risk Prevention and Control of Refining and Chemical Equipment for State Market Regulation,China Special Equipment Inspection&Research Institute,Beijing 100029,China)
出处
《盐科学与化工》
CAS
2024年第9期42-46,50,共6页
Journal of Salt Science and Chemical Industry
基金
十四五国家重点研发计划课题(2022YFC3004505)
国家市场监督管理总局科技计划项目(2023MK204)。
关键词
氯碱化工
典型工段
腐蚀
损伤模式
损伤分布图
Chlor-alkali chemical industry
Typical section
Corrosion
Damage mode
Damage distribution diagram
