Effect of Organic Additives and Crude Oil Fractions on Interfacial Tensions of Alkylbenzene Sulfonates

Autor:	Lu Zhang, Hong-yan Wang, Rong-hua Zhao, Hai-Yao Huang, Sui Zhao, Jichao Zhang, Lei Zhang
Rok vydání:	2013
Předmět:	Alkane chemistry.chemical_classification Polymers and Plastics Chemistry Jet fuel Crude oil Surfaces Coatings and Films Surface tension Chain length Chemical engineering Oil phase Organic chemistry sense organs Physical and Theoretical Chemistry Carbon number Asphaltene
Zdroj:	Journal of Dispersion Science and Technology. 34:623-631
ISSN:	1532-2351 0193-2691
DOI:	10.1080/01932691.2012.685844
Popis:	The dynamic interfacial tension (IFT) behavior of two alkylbenzene sulfonates systems have been researched with the addition of organic additives to pure alkane oil phase, n-Nonane. The results showed that IFTs increased with increasing chain length and concentration of carboxylic acids and alcohols due to the deviation of hydrophilic-lipophilic balance. Moreover, the IFT minimum appears in long-chain alkane by adding organic components in n-alkane model oil phase in the light of the matching of the alkane carbon number (ACN) for the minimum IFT (nmin) and equivalent alkane carbon number (EACN) values. In addition, four crude oils were separated into saturates, aromatics, resins, asphaltenes, and acidic fractions. We have found that acidic fractions in crude oil is the dominant factor affecting the stable value of IFT and antagonism has been observed when EACN/nmin value is far from unity by adding acidic fractions in jet fuel. The results presented here suggest that organic additives in oil phase and aci...
Databáze:	OpenAIRE
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