...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Fuel >Novel parameters derived from alkylchrysenes to differentiate severe biodegradation influence on molecular compositions in crude oils
【24h】

Novel parameters derived from alkylchrysenes to differentiate severe biodegradation influence on molecular compositions in crude oils

机译：衍生自烷基缩合的新参数，以区分原油中分子组合物的严重生物降解影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Solvent extracted bitumens from oil sands in the Athabasca region, West Canada and Liaohe Basin, NE China and oils from the Bongor Basin, SW Chad have been geochemically characterized to investigate biodegradation influence on molecular compositions. All samples in each case history were derived from the same source rock systems and have a similar maturity level. The variations in molecular compositions are merely caused by variable levels of biodegradation. GC-MS analysis results based on overall saturated and aromatic hydrocarbon distributions illustrated that biodegradation influences on Athabasca oil sands were less severe than these in Liaohe oil sands and Bongor oils but biodegradation level assignment is inconclusive and confusion. Novel biodegradation parameters based on methylchrysene (MCh) isomer distributions and relative abundance between alkylchrysenes and alkylphenanthrenes were proposed to differentiate biodegradation influence at heavy to severe biodegradation levels. The 3-MCh is proved to be the most stable methylchrysene isomer and the ratio of 3-MCh/Sigma MCh can serve as a novel biodegradation parameter. Meanwhile, alkylchrysenes show much higher ability to resist biodegradation than alkylphenanthrenes and the ratio of C0-1Ch/C2P was proposed as another novel biodegradation parameter. While the nature of organic source input may exert some impacts on the initial values of these novel parameters, continuous increases in these two parameters with intensified biodegradation levels may provide a supplemental tool for biodegradation influence assessment especially when biodegradation approaches to severe levels.
机译：溶剂从石油砂中萃取沥青，西加拿大和辽河盆地，北部中国和辽河盆地，SW乍得的地球化学表现为研究生物降解对分子组合物的影响。每个案例历史中的所有样本都来自同一源岩系统并具有类似的成熟度。分子组合物的变化仅由可变的生物降解含量引起。基于总饱和和芳烃分布的GC-MS分析结果表明，在辽河油砂和轴孔油和邦戈尔油中的生物降解影响较严重，但生物降解水平分配不确定和混乱。提出了基于甲基丙烯烯（MCH）异构体分布的新型生物降解参数和烷基苯体和烷基苯体之间的相对丰度，以区分重度至重度生物降解水平的生物降解影响。 3-MCH被证明是最稳定的甲基丁烯异构体，3-MCH / Sigma MCH的比例可以用作新的生物降解参数。同时，烷基缩合能够比烷基苯体抵抗生物降解的更高能力，并且提出了CO 1CH / C2P的比例作为另一种新的生物降解参数。虽然有机源输入的性质可能对这些新颖参数的初始值产生一些影响，但是这两个参数的连续增加具有强化的生物降解水平可以提供用于生物降解影响评估的补充工具，特别是当生物降解到严重水平的方法时。

著录项

  • 来源
    《Fuel》 |2020年第may15期|117366.1-117366.9|共9页
  • 作者

    Huang Haiping; Yin Mengsha; Han Denglin;

  • 作者单位

    Yangtze Univ Sch Geosci Wuhan 430100 Hubei Peoples R China|Univ Calgary Dept Geosci 2500 Univ Dr NW Calgary AB T2N 1N4 Canada;

    Univ Calgary Dept Geosci 2500 Univ Dr NW Calgary AB T2N 1N4 Canada;

    Yangtze Univ Sch Geosci Wuhan 430100 Hubei Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Biodegradation level; Biomarkers; Aromatic hydrocarbon; Alkylchrysenes;

    机译：生物降解水平;生物标志物;芳烃;烷基糠醇;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号