沙特减压渣油临氮热反应过程中沥青质聚集体尺寸变化研究

张龙力 刘动动 赵愉生 杨国华 杨朝合 邢雪青

引用本文: 张龙力, 刘动动, 赵愉生, 杨国华, 杨朝合, 邢雪青. 沙特减压渣油临氮热反应过程中沥青质聚集体尺寸变化研究[J]. 燃料化学学报, 2013, 41(1): 46-52. shu
Citation:  ZHANG Long-li, LIU Dong-dong, ZHAO Yu-sheng, YANG Guo-hua, YANG Chao-he, XING Xue-qing. Study on asphaltene aggregate size of ALVR thermal reaction samples under nitrogen atmosphere[J]. Journal of Fuel Chemistry and Technology, 2013, 41(1): 46-52. shu

沙特减压渣油临氮热反应过程中沥青质聚集体尺寸变化研究

    通讯作者: 张龙力(1974-),男,河南镇平人,博士,副教授,从事物理化学、石油化学研究,E-mail:llzhang@upc.edu.cn。
  • 基金项目:

    国家自然科学基金(20776160) (20776160)

    中石油重大科技专项专题(固定床渣油加氢处理催化剂研究开发) (固定床渣油加氢处理催化剂研究开发)

    中国石油大学(华东)"青年教师拔尖人才建设工程"基金 (华东)

    重质油国家重点实验室开放课题。 

摘要: 将沙特轻质原油的减压渣油在395℃临氮条件下进行热反应,利用在线取样装置得到不同热反应时间的样品,借助小角X射线散射(SAXS)技术,测定了各液相残渣油中沥青质聚集体尺寸。结果表明,热反应生焦诱导期的初期沥青质聚集体的尺寸逐渐减小,为29~21 nm;在生焦诱导期后期,其尺寸急剧增大,在热反应进行到150 min时达到43 nm;达到生焦诱导期后,沥青质聚集体尺寸变化较小,在46~42 nm变化。在渣油热反应过程中沥青质聚集体的尺寸受沥青质热裂解、沥青质解缔和缔合等过程的共同影响,与沥青质含量无明显关系。

English

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  • 收稿日期:  2012-04-19
  • 网络出版日期:  2012-06-29
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