Sorption behaviour of Triton X-1OO^R surfactant by sand

Dynamic sorption data are reported for the system Triton X-100^R solutions and characterised sands. The sand was in the form of a consolidated sand pack in an attempt to model reservoir conditions. The dynamic isotherms were determined directly for experimental data using the Wilson and DeVault equations. The effect of dispersion was evaluated and the application of the data to enhanced oil recovery discussed. It is shown that the dynamic adsorption isotherm exhibits Langmuir type behaviour up to the c.m.c. whereas results from static measurements of sorption do not. In spite of dispersion being present it was found that the Wilson and DeVault equations predicted the rate of movement of a surfactant band to 1% accuracy. © 1981.