What is the effect of decreasing the surface tension between oil& water on the oil recovery & separation?
and why?
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Posted 27 November 2018 - 03:08 AM
What is the effect of decreasing the surface tension between oil& water on the oil recovery & separation?
and why?
Posted 27 November 2018 - 08:10 AM
Decreasing interfacial tension between oil and water improves the ability of droplets to coalesce. However, there is a limit. If the interfacial tension is reduced too far, then water droplets lose their cohesion and can breakup and disperse into the oil. In a treater vessel, this is a careful balancing act between temperature, chemical addition and electrostatic field strength to reduce interfacial tension, but not to reduce it too far.
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