Comparative Study of Solid-Phase Extraction of Dissolved Organic Matter from Oilfield-Produced Brine by Different Sorbents

doi:10.1089/ees.2016.0488

ISL OpenIR > 青海盐湖研究所知识仓储

	Comparative Study of Solid-Phase Extraction of Dissolved Organic Matter from Oilfield-Produced Brine by Different Sorbents
	Yang, Keli; Zhang, Yaoling; Dong, Yaping; Nie, Zhen; Li, Wu
第一作者	Yang, Keli
	2017-09
发表期刊	ENVIRONMENTAL ENGINEERING SCIENCE
ISSN	1092-8758
卷号	34 期号:9 页码:675-686
关键词	Dissolved Organic Matter Ftir Oilfield-produced Brine Py-gc/ms
摘要	Dissolved organic matter (DOM) has been widely studied in streams, lakes, and oceans due to its role in biogeochemical processes, allowing it to act as a sunscreen, food source, trace metal chelator, and photosensitizer. Few studies have examined DOM in oilfield-produced water. In this study, three major types of solid-phase extraction (SPE) sorbents, a silica-based sorbent (ENVI-18), an active carbon (ENVI-Carb), and polymer-based sorbents (PPL, XAD resins, and HLB), were used to isolate DOM from oilfield-produced brine. Isolated SPE DOM samples were analyzed using dissolved organic carbon (DOC), Fourier transform infrared spectroscopy, and pyrolysis-gas chromatography-mass spectrometry (Py-GC/MS). Results showed that the oilfield-produced brine DOM sample was dominated by aliphatic hydrocarbons and aromatic compounds. Nitrogen-containing compounds and carbohydrates were also observed; however, polycyclic aromatic hydrocarbons, fatty acids, and sulfur-containing compounds were relatively absent. Under acidic conditions, extraction efficiencies of DOM from oilfield-produced brine were enhanced for different SPE sorbents as follows from high to low: XAD-8/4 tandem, HLB, PPL, ENVI-18, and ENVI-Carb. DOM samples isolated by different sorbents exhibited different properties. ENVI-18 and XAD-4 DOM isolates were enriched in aliphatic hydrocarbons but devoid of aromatic compounds, XAD-8, HLB, and PPL samples contained relatively higher levels of aromatics, and HLB and PPL samples showed a high retention capacity for carbohydrates, while ENVI-Carb and HLB DOM isolates contained more nitrogen compounds than those obtained using other sorbents. In addition, XAD-8 and PPL extracts were characterized by higher concentrations of sulfur-containing compounds. This is the first study of its type to study oilfield-produced brine DOM, and the results will help us better understand their structures and properties.
DOI	10.1089/ees.2016.0488
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6254
专题	青海盐湖研究所知识仓储盐湖资源综合利用工程技术中心
推荐引用方式 GB/T 7714	Yang, Keli,Zhang, Yaoling,Dong, Yaping,et al. Comparative Study of Solid-Phase Extraction of Dissolved Organic Matter from Oilfield-Produced Brine by Different Sorbents[J]. ENVIRONMENTAL ENGINEERING SCIENCE,2017,34(9):675-686.
APA	Yang, Keli,Zhang, Yaoling,Dong, Yaping,Nie, Zhen,&Li, Wu.(2017).Comparative Study of Solid-Phase Extraction of Dissolved Organic Matter from Oilfield-Produced Brine by Different Sorbents.ENVIRONMENTAL ENGINEERING SCIENCE,34(9),675-686.
MLA	Yang, Keli,et al."Comparative Study of Solid-Phase Extraction of Dissolved Organic Matter from Oilfield-Produced Brine by Different Sorbents".ENVIRONMENTAL ENGINEERING SCIENCE 34.9(2017):675-686.