People often ask us about how biodiesel is made and the glycerin separation phase. Here is a great example that we see every day. Once the reactor has stopped, we allow for a brief separation period where the heavy phase glycerin literally “falls out” to the bottom of the tank. We then pull this off and continue the reaction if necessary, or push to the next step in the process.
— Triangle Biofuels (@trianglebiofuel) January 5, 2017