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在乙烯生产过程中,原料在裂解炉分解,经过“急冷水”冷却及分离设备后得到乙烯。乙烯装置中急冷系统p H值的控制是影响整个乙烯装置平稳运行的重要因素。急冷水系统p H值过高,会使急冷水塔中的液体产生乳化现象,导致油夹带水或水夹带油。当油夹带水时,会使汽油分馏塔的平衡遭到破坏;水夹带油时,会导致裂解炉烧焦时炉管内部燃烧,给生产装置的安全稳定运行造成重大隐患;p H值过低,会使急冷水流经的设备产生腐蚀,严重影响生产装置的使用寿
In the ethylene production process, the raw materials are decomposed in the cracking furnace and ethylene is obtained after cooling and separating the equipment under “cold water”. The control of the p H value of the quench system in ethylene plants is an important factor that affects the smooth operation of the entire ethylene plant. Quench the p H value of the water system is too high, causing the liquid in the quench water tower to emulsify, causing the oil to entrain water or water entrainment. When the oil entrains water, the equilibrium of the gasoline fractionation column will be destroyed; when the oil entrains the oil, the interior of the furnace tube will be burned when the water is burned in the cracking furnace, posing a serious risk to the safe and stable operation of the production device; p H value is too low , Will quench the water flowing through the equipment corrosive, seriously affecting the life of the production plant