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1H-NMR评价不同重油缓和热转化过程中的相对供氢能力

刘贺 ,  陈坤 ,  王宗贤 ,  郭爱军

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引用本文: 刘贺, 陈坤, 王宗贤, 郭爱军. 1H-NMR评价不同重油缓和热转化过程中的相对供氢能力[J]. 燃料化学学报, 2013, 41(10): 1191-1198. shu
Citation:  LIU He, CHEN Kun, WANG Zong-xian, GUO Ai-jun. Evaluation of relative hydrogen-donating abilities of different heavy oils during mild thermal conversion by 1H-NMR[J]. Journal of Fuel Chemistry and Technology, 2013, 41(10): 1191-1198. shu

1H-NMR评价不同重油缓和热转化过程中的相对供氢能力

    通讯作者: 王宗贤,Tel:0532-86981851,E-mail:zxwang@upc.edu.cn。
  • 基金项目:

    中国石油天然气股份有限公司委内瑞拉超重油减黏基础研究项目(2008E-1502/2) (2008E-1502/2)

    中国石油大学(华东)研究生创新工程(CX-1216)。 (华东)研究生创新工程(CX-1216)

摘要: 以蒽为化学夺氢探针,采用 1H-NMR为检测手段测定了三种典型重质渣油及其亚组分在380℃、临氮初压4MPa、反应8 min条件下的可供氢含量,并分析了产物的甲苯不溶物、液体馏程分布以及气体组成。结果表明,本实验条件下的热反应较为缓和,渣油及组分反应前后结构变化不明显,样品体系内部主要发生渣油及组分向夺氢体(蒽)的氢转移反应。1H-NMR中化学位移在1.4~2.0的Hcβ和2.5~4.7的Hcα含量的变化值与化学探针法测定的实际可供氢量有较好的线性关联,可利用此两段化学位移内的氢含量评价不同重质油品在缓和热改质过程中的相对供氢能力。

English

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  • 收稿日期:  2012-12-25
  • 网络出版日期:  2013-02-11
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