缠绕管式换热器在连续重整装置中的应用

发布时间：2018-04-09 19:28

本文选题：连续重整　切入点：缠绕管式换热器　出处：《中外能源》2017年11期

【摘要】：连续重整装置是以石脑油为原料,在催化剂作用下生产芳烃和高辛烷值汽油组分的重要装置,同时还为加氢装置提供大量的廉价氢源。在连续重整装置中,重整进料换热器的选型对产品结构和经济效益都有重要影响。洛阳石化70×10~4t/a连续重整装置选用板壳式换热器,内漏严重,用缠绕管式换热器替代板壳式换热器,既能满足装置的传热要求,拥有优良的传热工艺性能,又具有耐高温高压、抗操作波动的特点,是连续重整装置中较为理想的高效、高可靠性设备。缠绕管式换热器替代板壳式换热器,节省成本553万元;装置3.5MPa蒸汽和燃料气消耗量明显减少,同时产品结构得到优化,提高了主产品氢气和重整汽油的产率以及重整汽油的辛烷值;重整生成油液体收率可以达到84%左右,芳烃含量可以达到77%左右,每年为企业综合节能创效8681.7万元。
[Abstract]:Continuous reforming unit is an important unit for producing aromatics and high octane gasoline components using naphtha as raw material and under the action of catalyst. At the same time, it also provides a large number of cheap hydrogen sources for hydrogenation units.In the continuous reforming unit, the selection of feed heat exchanger has an important effect on the product structure and economic benefit.Luoyang Petrochemical Co. Ltd 70 脳 10~4t/a continuous reforming unit adopts plate-shell heat exchanger with serious internal leakage. Replacing plate-shell heat exchanger with winding tube heat exchanger can not only meet the heat transfer requirements of the unit, but also have excellent heat transfer process performance and high temperature and high pressure resistance.The characteristic of anti-operation fluctuation is the ideal high-efficiency and high reliability equipment in the continuous reforming unit.Instead of the plate and shell heat exchanger, the winding tube heat exchanger saves 5.53 million yuan in cost, the consumption of 3.5MPa steam and fuel gas is reduced obviously, and the product structure is optimized.The yield of hydrogen and reforming gasoline and the octane number of reforming gasoline were increased, the liquid yield of reforming oil was about 84%, and the content of aromatics was about 77%, which created 86.817 million yuan of comprehensive energy saving efficiency for enterprises every year.
【作者单位】：中国石化洛阳分公司;
【分类号】：TE965

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