Petroleum Refinery Engineering ›› 2021, Vol. 51 ›› Issue (3): 29-32.

• PROCESSING • Previous Articles     Next Articles

Industrial practice of increasing the steam injection amount in delayed coking unit

Li Jie1, Cen Youliang1, Liu Jian2, Hou Jicheng2, Zhai Zhiqing2, Du Xiang3, Huang Xinlong1   

  1. 1. SEG Luoyang R & D Center of Technology, Luoyang, Henan 471003;
    2. SINOPEC Luoyang Company, Luoyang, Henan 471012;
    3. SINOPEC Guangzhou Engineering Co., Ltd., Guangzhou, Guangdong 510620
  • Received:2020-12-23 Revised:2021-01-22 Online:2021-03-15 Published:2021-07-16

提高炉管注汽量在延迟焦化装置上的工业实践*

李节1, 岑友良1, 刘健2, 侯继承2, 翟志清2, 杜翔3, 黄新龙1**   

  1. 1.中石化炼化工程(集团)股份有限公司洛阳技术研发中心,河南省洛阳市 471003;
    2.中国石油化工股份有限公司洛阳分公司,河南省洛阳市 471012;
    3.中石化广州工程有限公司,广东省广州市 510620
  • 通讯作者: ** 黄新龙,正高级工程师。联系电话:0379-64330527,E-mail:huangxinlong.segr@sinopec.com。
  • 作者简介:李节,工程师,硕士,主要从事重油加工技术开发工作。
  • 基金资助:
    * 中国石化科研开发项目(CLY20120)。

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Abstract: “Multi-point steam injection” technology has been widely used in recent years. SINOPEC Luoyang Company studies the effect of increasing the steam injection amount of furnace tube on delayed coking industrial unit. The results show that when the steam injection amount increases from 0.81% to 1.48%, 1.98%, 3.09% and 3.96%, the yield of gasoline and diesel slightly decreases, the yield of coking wax oil increases, and the yield of coke decreases significantly. The transformed yield of coke in terms of coke factor decreases by 0.82, 1.24, 2.13, and 3.05 percentage points, respectively. The properties of gasoline and diesel fraction in the product change little, but the properties of coking wax oil become worse. The energy consumption of the unit increases along with the steam injection amount. When the steam injection amount rises to 4%, the energy consumption increases by about 155.04 MJ/t.

Key words: delayed coking, furnace tube steam injection, coking wax oil, coke yield, energy consumption

摘要： 近年来“多点注汽”技术逐渐得到广泛应用, 中国石油化工股份有限公司洛阳分公司主要研究了提高炉管注汽量对延迟焦化工业生产装置的影响。工业试验结果表明:当注汽量由0.81%分别提高到1.48%,1.98%,3.09%和3.96%时,汽油和柴油的产率略有降低,焦化蜡油的产率增加,焦炭产率明显降低,按照生焦系数换算的焦炭产率分别降低了0.82,1.24,2.13和3.05百分点。产品中汽油馏分和柴油馏分的性质变化不大,而焦化蜡油的性质变差。注汽量的提高会增加装置的加工能耗,当炉管注汽量提高到约3.93%时,加工能耗增加约155.04 MJ/t。

关键词: 延迟焦化, 炉管注汽, 焦化蜡油, 焦炭产率, 能耗