Functionalized Ionic Liquids as Asphaltene Dispersants: A Comparison between Aliphatic and Aromatic Cations

IF 1.3 4区 工程技术 Q3 CHEMISTRY, ORGANIC
Edris Mardani, Babak Mokhtari, Bahram Soltani Soulgani, Shirin Baghersaei
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Abstract

In this study, two groups of functionalized aliphatic and aromatic ILs with the same anions were synthesized and used as asphaltene dispersants. The quartz crystal microbalance and ultraviolet spectroscopy were used in this study, and the results obtained from these two techniques were in relatively good agreement with each other. The results showed that aromatic ILs generally possess better inhibitory performance than aliphatic ones. The molecular structure of IL anions also greatly influenced the dispersion of asphaltenes in a toluene solution. It seems that π-π interactions between asphaltene molecules and aromatic cations represent the main cause of the better performance of aromatic ILs. This hypothesis was also confirmed by observing the high dispersion ability of a maleate anion, which has a carbon-carbon double bond, compared to other studied anions.

Abstract Image

Abstract Image

作为沥青分散剂的官能化离子液体:脂肪族阳离子与芳香族阳离子的比较
摘要 本研究合成了两组具有相同阴离子的官能化脂肪族和芳香族 IL,并将其用作沥青分散剂。研究采用了石英晶体微天平和紫外光谱技术,这两种技术得出的结果具有较好的一致性。结果表明,芳香族 IL 的抑制性能普遍优于脂肪族 IL。IL 阴离子的分子结构对沥青烯在甲苯溶液中的分散也有很大影响。沥青烯分子与芳香阳离子之间的 π-π 相互作用似乎是芳香族聚合硫醇具有更佳性能的主要原因。观察到具有碳碳双键的马来酸阴离子与其他研究阴离子相比具有更高的分散能力,也证实了这一假设。
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来源期刊
Petroleum Chemistry
Petroleum Chemistry 工程技术-工程:化工
CiteScore
2.50
自引率
21.40%
发文量
102
审稿时长
6-12 weeks
期刊介绍: Petroleum Chemistry (Neftekhimiya), founded in 1961, offers original papers on and reviews of theoretical and experimental studies concerned with current problems of petroleum chemistry and processing such as chemical composition of crude oils and natural gas liquids; petroleum refining (cracking, hydrocracking, and catalytic reforming); catalysts for petrochemical processes (hydrogenation, isomerization, oxidation, hydroformylation, etc.); activation and catalytic transformation of hydrocarbons and other components of petroleum, natural gas, and other complex organic mixtures; new petrochemicals including lubricants and additives; environmental problems; and information on scientific meetings relevant to these areas. Petroleum Chemistry publishes articles on these topics from members of the scientific community of the former Soviet Union.
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