压力容器2025，Vol.42Issue(10)：31-39,9.DOI:10.3969/j.issn.1001-4837.2025.10.003
加氢空冷器氯化铵沉积及注水防控试验研究
Experimental study on deposition of ammonium chloride and prevention and control of hydrogenation air cooler by water injection
摘要
Abstract
In the hydroprocessing process of the refining industry,the deposition of ammonium chloride salts on hydroprocessing air coolers during actual operation severely restricts the long-term stable operation of the unit.In this study,experiments were conducted to investigate the effects of ammonium chloride particle deposition and movement characteristics in hydroprocessing air coolers.Meanwhile,we examined the influence of flow velocity,temperature,particle size,and water injection rate on the water injection control efficiency,via a comparative analysis of the deposition amount before and after water injection.The results show that flow velocity,water injection rate,and temperature exert significant impacts on water injection control,with water injection exhibiting a more pronounced effect on the lower tube rows and thus achieving better control efficiency.Within the scope of this study,the optimal water injection efficiency was achieved at a flow velocity of 5 m/s and a temperature of 100 ℃.Within the allowable operation range,increasing the flow velocity,raising the temperature,and augmenting the water injection rate can further enhance the water injection control efficiency.This study provides a reference for the selection of parameters related to ammonium chloride deposition mitigation and water injection control during the actual operation of hydroprocessing units.关键词
加氢空冷器/氯化铵颗粒/沉积特征/注水防控Key words
hydrogenation air cooler/ammonium chloride particles/particle deposition characteristic/water injection prevention and control分类
机械制造引用本文复制引用
陈欣,尹皓昱,金浩哲,刘骁飞,王超,章利特..加氢空冷器氯化铵沉积及注水防控试验研究[J].压力容器,2025,42(10):31-39,9.基金项目
国家重点研发计划课题(2023YFC3010504) （2023YFC3010504）
浙江省科技计划项目(No.2024C03122,No.2025C02236) （No.2024C03122,No.2025C02236）
