The Biomarker Changes of a Heavy Fuel Oil After Different Weathering Times

• Published in: Journal of Ocean University of China Vol. 8; no. 1; pp. 51 - 56
• Main Authors: Ma, Qimin, Ni, Zhanglin, Yu, Zhigang
• Format: Journal Article
• Language: English
• Published: Heidelberg SP Science Press 2009; Springer Nature B.V; College of Environmental Science and Engineering, Ocean University of China, Qingdao 266003, P. R. China%College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266003, P. R. China
• Subjects: Aromatic compounds; Earth and Environmental Science; Earth Sciences; Environmental conditions; GC/MS; Meteorology; Oceanography; Oceans; Petroleum; Relative abundance; Seawater; Simulation; Studies; Weather; Weathering; 自然环境; 重燃料油; 风化作用; weathering; GC/MS; heavy fuel oil
• ISSN: 1672-5182; 1993-5021; 1672-5174
• DOI: 10.1007/s11802-009-0051-7

This paper presents the experimental results of composition changes of heavy fuel oil by stmulating weathering in static seawater under natural environmental conditions. The results indicate： n-C10 to n-C15 were lost gradually in 24 weeks and the relative abundance of alkanes with long chains （〉n-C19） increased markedly. The aromatic compounds with less than two tings （except C4N） were completely lost in 24 weeks and CnP and CnD became the main aromatics in the heavy fuel oil after 24 weeks. The ratios of n- C1/Pristane （Pr） and n-C18 Phytane （Ph） were suitable for identifying lightly weathered （3 weeks） heavy fuel oil. The ratios of n-ClT/n-C18 and Pr/Ph were suitable for identifying moderately weathered heavy fuel oil （12 weeks）; the ratios of C2D/C2P and C3D/C3P did not change significantly in 24 weeks and were more suitable for identifying moderately weathered heavy fuel oil （24 weeks）.