Effect of Thermal Stability of Alkanolamide on Oil/Water Interfacial Tensions期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Effect of Thermal Stability of Alkanolamide on Oil/Water Interfacial Tensions

Authors:	Yongjun?Guo author-information" > author-information__contact u-icon-before" > mailto:gyfzgyj@.com" title=" gyfzgyj@.com" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,Di?Pu author-information" > author-information__contact u-icon-before" > mailto:yizuvip@.com" title=" yizuvip@.com" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,Rusen?Feng,Yachun?Xiong

Affiliation:	1. , State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu, People’s Republic of China;2. , School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, People’s Republic of China;3. Sichuan Guangya Polymer Chemical Co., Ltd, Nanchong, People’s Republic of China

Abstract:	In order to investigate the effect of thermal stability of alkanolamide on oil/water interfacial tensions (IFT), lauric diethanolamide (LDEA) was synthesized. The effects of temperature and standing time on the composition and oil/water IFT was studied in detail. The results showed that the changes in composition and oil/water IFT at the same conditions were essentially in agreement. The best standing temperature range was from 30 to 60 °C with a standing time of more than 10 days. The inherent cause of thermal stability on oil/water IFT was revealed through structure characterization and composition analysis with FTIR spectrometry and GC–MS spectrometry. It was found that the composition's change of mixed LDEA systems disturbed the hydrophilic‐lipophilic balance, which influenced the ability to reduce the interfacial tension.

Keywords:	Alkanolamide Thermal stability Surfactant composition Oil/water interfacial tensions Enhanced oil recovery (EOR)
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