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1 前言氧氯反应器是引进的20万t/a氯乙烯装置的关键设备,冷却管束更是该反应器的“心脏”。其作用是通过管内的循环热水,使反应温度保持相对稳定。由于物料为氯气、氧气和乙烯类,成分复杂,流速快,反应温度高,且处于催化剂微粒的强烈冲刷下,工作条件十分苛刻。因而易发生管束的严重腐蚀泄漏,造成频繁的不正常停车。为此,我们组织了氧氯化反应器冷却管束的国产化研制的技术攻关。成功地制造并安装了新的冷却管束。较好的解决了腐蚀泄漏问题。
1 Introduction Oxychloride reactor is the introduction of 200,000 t / a vinyl chloride plant key equipment, the cooling tube bundle is the reactor “heart ”. Its role is through the tube of circulating hot water, so that the reaction temperature remained relatively stable. As the material is chlorine, oxygen and ethylene, the composition is complex, fast flow rate, high reaction temperature, and in the strong erosion of the catalyst particles, the working conditions are very harsh. Which is prone to serious corrosion and leakage of tube bundle, resulting in frequent abnormal parking. To this end, we organized the oxychlorination reactor cooling tube made of the technical research and development. The new cooling bundle was successfully manufactured and installed. A better solution to the problem of corrosion leakage.