The last pipe and tube work is under way at Valero Energy Corp.'s new Diamond Green Diesel plant, which will create fuel from waste animal fats rather than petroleum feedstocks.
Believed to be the largest plant of its kind in the world, DGD will take in some 11% of waste animal fats and grease in the U.S. to produce 137 million gallons per year of renewable diesel fuel. The largest U.S. rendering and animal recycling firm, Darling International, will supply the raw material.