During the process of crude oil/gasoline loading, significant amounts of volatile organic compounds (VOCs) can be emitted to the environment. Stable aqueous foam can be spread as a flexible blanket before crude oil/gasoline loading to control the VOC emission by providing a mass transfer barrier during the loading process. In this work, novel aqueous foams have been formulated by incorporating special type of clay nano-particles in an aqueous solution of surfactants and polymers. Experiments to investigate the foam stability and VOC emission were carried out in a bench-scale foam column. These foams are found to be very stable and can last much longer a day. There was a decrease of the rate at which liquid is drained out of the foam and thus, a decrease of the rate of quality increase. There is also a significant reduction of vapor emission for the first 40 hours. Increasing polymer and clay concentrations increases the foam stability and mass transfer resistance.

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