Making Antifreeze from Biodiesel

Not only can you fill your tank with biodiesel, a new advance could let you fill your vehicle's cooling system with a biomass-derived antifreeze. A new process has been developed at the University of Missouri-Columbia for converting glycerin, a byproduct of the biodiesel production process, into propylene glycol, which can be used as nontoxic antifreeze for automobiles. Researchers say the new propylene glycol product will meet every performance standard, is made from domestic soybeans and is nontoxic. This technology can reduce the cost of biodiesel production by as much as $0.40 per gallon of biodiesel. :: RE Access story