催化裂化汽油加氢装置中反应器床层降温方法的对比
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摘要
为了控制反应温度,防止反应器飞温,对2套采用GARDES工艺的催化裂化(FCC)汽油加氢装置中床层降温方式进行了对比分析。结果表明:采用加氢产品(冷油)和循环氢(冷氢) 2种方式均可降低床层温度8～10℃;使用冷油降温时,加氢产品的烯烃体积分数下降量偏低,辛烷值损失较小;使用冷氢降温时,降烯烃效果较佳,但辛烷值损失较大。
In order to control the reaction temperature and prevent temperature runaway,the cooling ways of reactor bed of two sets of fluid catalytic cracking( FCC) gasoline hydrogenation units with GARDES process were compared and analyzed. The results showed that the hydrogenation products( cold oil) and circulating hydrogen( cold hydrogen) both reduced the bed temperature of 8-10 ℃. When cooling by cold oil,the decrease of olefin volume fraction of hydrogenated products was lower,and the loss of research octane number was smaller; while using cold hydrogen,the effect of olefin reduction was better,but the loss of octane number was greater.
In order to control the reaction temperature and prevent temperature runaway,the cooling ways of reactor bed of two sets of fluid catalytic cracking( FCC) gasoline hydrogenation units with GARDES process were compared and analyzed. The results showed that the hydrogenation products( cold oil) and circulating hydrogen( cold hydrogen) both reduced the bed temperature of 8-10 ℃. When cooling by cold oil,the decrease of olefin volume fraction of hydrogenated products was lower,and the loss of research octane number was smaller; while using cold hydrogen,the effect of olefin reduction was better,but the loss of octane number was greater.
引文
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[3]曾祥根,张占柱,王少兵,等.加氢反应器分配器的数值模拟[J].计算机与应用化学,2005,22(2):148-152.
[4]王兴敏.固定床加氢反应器内构件的开发与应用[J].炼油设计,2001,31(8):24-27.
[5]张迎恺,孙丽丽.加氢裂化反应器新型冷氢箱的研究与工程设计[J].石油炼制与化工,2002,33(6):58-59.
[6]王彩杰.加氢裂化反应器的模型改进及不同急冷介质的效果比较[D].上海:华东理工大学,2016.
[7]向永生,王玉兴,崔彦君,等,GARDES系列加氢催化剂在催化裂化汽油加氢补充脱硫装置的工业应用[J].石化技术与应用,2015,33(1):50-53.
[8]向永生,黄金刚,石冈,等,GARDES工艺在FCC汽油加氢装置国Ⅴ工业应用[J].工业催化,2015,23(2):5-9.
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