| 加氢精制高压换热器压力降升高的原因及对策 |
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| 引用本文： | 卢秋旭,贾桂秀,周岐雄.加氢精制高压换热器压力降升高的原因及对策[J].炼油技术与工程,2010,40(7). |
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| 作者姓名： | 卢秋旭 贾桂秀 周岐雄 |
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| 作者单位： | 中国石油化工股份有限公司塔河分公司 新疆大学化学化工学院 |
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| 摘 要： | 对中国石油化工股份有限公司塔河分公司汽柴油加氢精制装置高压换热系统压力降持续上升的原因进行分析,发现原料中氯、硫、氮等杂质含量升高、氯化铵盐与硫酸盐在高压换热系统内结晶析出,堵塞了部分换热管。采用高压换热器在线间断水洗,加缓蚀剂,控制介质温度在130℃以上这三项措施,解除了这一装置生产的瓶颈,满足了安稳长运行的要求。
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| 关 键 词： | 高压换热器 压力降 氯化铵 结晶 在线 水洗 腐蚀 |
Causes of continuous pressure-drop rise in high-pressure heat exchanger in hydrofining unit |
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| Lu Qiuxu,Jia Guixiu,Zhou Qixiong.Causes of continuous pressure-drop rise in high-pressure heat exchanger in hydrofining unit[J].Petroleum Refinery Engineering,2010,40(7). |
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| Authors: | Lu Qiuxu Jia Guixiu Zhou Qixiong |
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| Affiliation: | 1.SINOPEC Tahe Company(Kuche 842000; Xinjiang; China) 2.College of Chemistry and Chemical Engineering; Xinjiang University(Urumqi 830046; China); |
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| Abstract: | The analysis of causes of continuous pressure-drop rise in high-pressure heat exchanger in gasoline and diesel hydrofining unit in SINOPEC Tahe Company concluded that the pressure drop rise was attributed to the plugging of some heat exchanger tubes caused by high impurities like Cl,S and N in the feed and crystallization of ammonia sulfide and sulfate in the heat exchanger.The application of on-line intermittent water washing,addition of corrosion inhibitor and control of medium temperature at over 130℃hav... |
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| Keywords: | high-pressure heat exchanger pressure drop ammonia chloride crystallization on-line water washing corrosion |
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