石油学报(石油加工) ›› 2019, Vol. 35 ›› Issue (4): 783-789.doi: 10.3969/j.issn.1001-8719.2019.04.021

• 研究报道 • 上一篇    下一篇

水力空化对沙重原油性质的影响

陈辉1,韩海波2,李康2,雷杰2,陈建民3,崔树旗4,刘雪东4   

  1. 1. 中国石化 科技部 炼油处,北京 100027;
    2. 中国石化 炼化工程集团洛阳技术研发中心,河南 洛阳 471003;
    3. 中国石化 广州工程有限公司,广东 广州 510620;
    4. 常州大学 机械工程学院,江苏 常州 213164
  • 收稿日期:2018-08-16 修回日期:2018-10-18 出版日期:2019-07-25 发布日期:2019-09-24
  • 通讯作者: 刘雪东,男,教授,从事重油轻质化设备研究;E-mail:lxd@cczu.edu.cn E-mail:t-likang.lpec@sinopec.com
  • 作者简介:第一作者:陈辉,男,高级工程师,从事炼油技术管理工作,E-mail:chenhui@sinopec.com
  • 基金资助:
    中国石油化工股份有限公司项目(117017-8)资助

Effect of Hydrodynamic Cavitation on the Properties of Saudi Heavy Crude Oil

CHEN Hui1, HAN Haibo2, LI Kang2, LEI Jie2, CHEN Jianmin3, CUI Shuqi4, LIU Xuedong4   

  1. 1. Oil Refining Division, Science and Technology Department, SINOPEC, Beijing 100027, China;
    2. Luoyang R&D Center of Technology of Engineering (Group) CO., LTD., SINOPEC, Luoyang 471003, China;
    3. Guangzhou Petrochemical Engineering Corporation, SINOPEC, Guangzhou 510620, China,
    4. College of Mechanical Engineering, Changzhou University, Changzhou 213164, China
  • Received:2018-08-16 Revised:2018-10-18 Online:2019-07-25 Published:2019-09-24

摘要: 基于水力空化过程能够产生局部的高温、高压、高射流、强大的剪切力等极端物理条件,提出利用水力空化装置改质处理沙特重质原油(沙重原油)的设想,考察了常温下水力空化压力和处理次数对沙重原油性质的影响;并通过理化性能分析、实沸点蒸馏实验和减压渣油延迟焦化反应考察了水力空化处理前后原油的性能。结果表明:当水力空化压力为4 MPa,处理1次时,沙重原油改质效果最佳:其20  ℃时密度、40  ℃时黏度、残炭、相对分子质量分别由0.8967 g/cm3、13.61 mm2/s、7.16%、467降低至0.8710 g/cm3、7.22 mm2/s、6.48%、443;经过空化处理的原油中减压渣油质量分数降低约1.0百分点;减压渣油延迟焦化的焦炭产率降低1.85百分点,液相和气相产品的收率分别增加1.52和0.33百分点。

关键词: 水力空化, 降粘, 重油改质, 产品分布

Abstract:

Hydrodynamic cavitation process can produce extreme physical conditions such as local high temperature, high pressure, high jet flow and strong shear stress. Therefore, applying the hydrodynamic cavitation device to upgrade Saudi heavy crude oil is proposed in this study. Effects of hydrodynamic cavitation pressure and treatment times on the properties of Saudi heavy crude oil were investigated at room temperature. Experimental results show that the optimum upgrading conditions for Saudi heavy oil are cavitation pressure of 4 MPa and once through treatment. Density, viscosity, carbon residuse and relative molecular mass of the crude oil were changed from 0.8967 g/cm3, 13.61 mm2/s, 7.16% and 467 to 0.8710 g/cm3, 7.22 mm2/s, 6.48% and 443, correspondingly. Real boiling point distillation data indicate that the vacuum residue mass fraction can be reduced 1 percent. In addition, the delayed coking properties of vacuum residue was also investigated. Test results show that the coke yield mass fraction can be decreased 1.85 percent, liquid and gas yield can increase 1.52 percent and 0.33 percent, respectively.

Key words: hydrohynamic cavitation, viscosity reduction, heavy oil upgrading, products distillation