In Tennessee, researchers at Oak Ridge National Laboratory have discovered that by using a high-intensity dose of ultrasonic energy, they can remove or prevent the formation of precipitates, or solids, in biofuels. “Biodiesel forms invisible precipitates at temperatures approaching 41 degrees Fahrenheit,” researcher Mike Kass said. “These precipitates cause plugging of filters and lines and are one of the leading concerns associated with expanded use of biodiesel.”
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