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Influence of PZC (Point of Zero Charge) on the Static Adsorption of Anionic Surfactants on a Malaysian Sandstone

Mushtaq, Muhammad and Tan, Isa M. and Ismail, Lukman and Nadeem, Muhammad and Sagir, Muhammad and Azam, Rizwan and Hashmet, Rehan (2013) Influence of PZC (Point of Zero Charge) on the Static Adsorption of Anionic Surfactants on a Malaysian Sandstone. Journal of Dispersion Science and Technology (ja). null. (In Press)

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Official URL: http://www.tandfonline.com/doi/abs/10.1080/0193269...

Abstract

Static adsorption studies of two anionic surfactants produced in our lab are reported. The adsorption of surfactants on the rock samples was investigated with and without the presence of alkali. The point of zero charge (PZC) values were determined for the sandstone samples employing three titrimetric methods and it was found to be at pH 7.98. The relationship between the adsorption degree and pH value of brine below and above the PZC is discussed. It was found that at the pH of solution exceeds the PZC of the rock, the adsorption was 0.43 and 0.86Â mg / g of rock for the two surfactants. However, at pH values below PZC, the adsorption as high as 3.66 and 4.49Â mg / g for the two surfactants. The synthesized surfactants are found to be suitable for the EOR applications at pH values higher than the PZC of the rock sample.

Item Type:Article
Academic Subject One:Mission Oriented Research - Enhanced Oil Recovery - Enhanced oil recovery
Departments / MOR / COE:Research Institutes > Institute for Hydrocarbon Recovery
ID Code:10584
Deposited By: Assoc Prof Dr Isa Mohd Tan
Deposited On:16 Dec 2013 23:48
Last Modified:16 Dec 2013 23:48

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