详细信息
核磁共振谱法估计重油和沥青中芳环分布 ( EI收录)
Estimation of Aromatic Ring Distribution for Heavy Oils and Bitumens by NMR
文献类型:期刊文献
中文题名:核磁共振谱法估计重油和沥青中芳环分布
英文题名:Estimation of Aromatic Ring Distribution for Heavy Oils and Bitumens by NMR
作者:陆善祥[1];Gray,MR[1]
机构:[1]华东理工大学联合化学反应工程研究所
年份:1994
卷号:20
期号:4
起止页码:501
中文期刊名:华东理工大学学报(自然科学版)
外文期刊名:Journal of East China University of Science and Technology
收录:CSTPCD;;国家哲学社会科学学术期刊数据库;EI(收录号:1996062612930);Scopus;CSCD:【CSCD2011_2012】;
基金:国家自然科学基金
语种:中文
中文关键词:重油;沥青;芳香环分布;NMR
外文关键词:NMR spectroscopy; heavy oil;asphaltene; quantitative analysis;composi-tion; aromatic ring distribution
摘要:在假设不同环数芳环上取代度或取代基数相等的基础上,由H-NMR数据,推导出芳环分布计算式.采用模型混合物验证不同环数芳环质子类型谱带归属,然后估计出四种Alberta沥青质芳环分布.结果表明,不同取代基数的假设,不会引起芳环分布估计的较大误差;Alberta沥青质稠环芳烃含量不高,与传统对沥青质中稠环芳烃含量估计相差甚大.
Based on the assumption of equal degree of substitution or equal number ofsubstituents on aromatic ring,the aromatic ring distribution of heavy oils and bitumens is es-timated by NMR proton spectra on the aromatics with the different ring number.Band as-signments of aromatic protons are checked with model mixtures. In this way the aromaticring distributions of four Alberta asphaltenes are estimated. The results show that the effectof the assumption above-mentioned on the error of the ring distribution estimate is insignifi-cant,and the content of aromatic condensed rings of Alberta asphaltenes is not high,whichis different from the traditional estimates.
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