· Valero acquired 10 state-of-the-art ethanol plants, making it the first traditional refiner to enter production of ethanol, under subsidiary Valero Renewable Fuels Company LLC, or Valero Renewables for short.
· Ethanol is an environmentally friendly source of high-octane renewable fuel produced by fermenting converted corn starch with yeast. It is used as a blending agent for gasoline.
· The co-product left after the ethanol is removed from fermented corn mash, called distillers grains, is sold as high-protein livestock feed.
· The entire kernel of corn is converted to ethanol or distillers grains.
· Also, Diamond Alternative Energy LLC, a Valero subsidiary, produces "green" diesel fuel from recycled animal fat and used cooking oil, in partnership with Darling International Inc., at a 10,000-barrel-per-day unit at the St. Charles Refinery.