辽宁石油化工大学学报

辽宁石油化工大学学报 ›› 2018, Vol. 38 ›› Issue (02): 9-12.DOI: 10.3969/j.issn.1672-6952.2018.02.002

• 化学与化学工程 • 上一篇    下一篇

超声波作用下渣油临氢热裂化反应机理

王 翀1,赵德智1,宋官龙2,李 莹1,杨占旭1,赵 云3,张文君3   

  1. 1.辽宁石油化工大学化学化工与环境学部,辽宁抚顺113001; 2.东北大学冶金学院,辽宁沈阳110819; 3.中国石油抚顺石化公司,辽宁抚顺113008
  • 收稿日期:2017-03-09 修回日期:2017-04-11 出版日期:2018-04-26 发布日期:2018-04-25
  • 作者简介:王翀(1985-),男,硕士研究生,从事重质油加工方面的研究;E-mail:31852980@qq.com。
  • 基金资助:
    :中海油惠州炼化公司资助项目(HLOOFW(P)2014-0005);辽宁省大型仪器设备共享服务平台能力建设研究基金项目(2016LD0106)

Hydrothermal Cracking Reaction Mechanism of the Residue under the Effect of Ultrasonic Wave

Wang Chong1, Zhao Dezhi1, Song Guanlong2, Li Ying1, Yang Zhanxu1, Zhao Yun3, Zhang Wenjun3   

  1. 1.College of Chemistry, Chemical Engineering and Environmental Engineering，Liaoning Shihua University， Fushun Liaoning 113001, China; 2.School of Metallurgy, Northeastern University, Shenyang Liaoning 110819, China; 3.PetroChina Fushun Petrochemical Company, Fushun Liaoning 113008, China
  • Received:2017-03-09 Revised:2017-04-11 Published:2018-04-26 Online:2018-04-25

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摘要：

采用高温高压超声波反应器对惠州炼化的减压渣油进行超声波作用下的临氢热裂化反应,考察气相产物组成、液相产物组成、反应生焦SEM 形貌及元素分析,探讨在超声波作用下渣油临氢热裂化反应机理。结果表明,超声波作用下的渣油临氢热裂化反应的气相产物收率无明显差别,轻油收率略有增加,生焦率降低;焦炭的颗粒棱角比较圆滑,出现孔道结构,说明在超声波作用下,渣油临氢热裂化反应主要按自由基热反应机理进行,超声波的空化作用可促使渣油发生裂化反应,因此轻油收率略有增加,超声波的机械效应使悬浮在渣油中的生焦前驱物剧烈震荡,阻止其聚合,从而减少了结焦;焦炭中Ni元素的大量增加说明了催化剂为结焦提供结焦中心。

关键词: 超声波, 渣油, 临氢热裂化, 反应机理

Abstract: Using a high-temperature and high-pressure ultrasonic reactor, the hydrothermal cracking reaction of vacuum residue of Huizhou Refinery. The gas product composition, liquid product composition, reaction coke SEM morphology, and element analysis were investigated to discuss the mechanism of hydrothermal cracking reaction under the effect of ultrasonic wave. The results show that there is no significant difference in the yield of gas products in hydrothermal cracking reaction mechanism of the residue under the effect of ultrasonic wave and the production rate of light oil has been increased slightly while that of coke has been slightly reduced. The angularity of the coke particles is relatively smooth and the pore structure appears, indicating that under the effect of ultrasonic wave, the hydrothermal cracking reaction of residual oil is mainly based on the radical thermal reaction mechanism and the cavatition of ultrasonic wave can promote the residuum to have cracking reaction so that the production rate of light oil has been slightly increased. The mechanical effect of ultrasonic wave causes the raw coke precursor suspended in the residue to oscillate violently, so as to prevent its polymerization, thus having reduced coking, the large increase of Ni in the coke indicates that the catalyst provides a coking center for coking.

Key words: Ultrasonic wave, Residue, Hydrothermal cracking, Mechanism of reaction　

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引用本文

王 翀,赵德智,宋官龙,李 莹,杨占旭,赵 云,张文君. 超声波作用下渣油临氢热裂化反应机理[J]. 辽宁石油化工大学学报, 2018, 38(02): 9-12.

Wang Chong, Zhao Dezhi, Song Guanlong, Li Ying, Yang Zhanxu, Zhao Yun, Zhang Wenjun. Hydrothermal Cracking Reaction Mechanism of the Residue under the Effect of Ultrasonic Wave[J]. Journal of Liaoning Petrochemical University, 2018, 38(02): 9-12.

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