The Woodridge company commercialized technology to make chemicals from renewable sources. : Elevance Renewable Sciences, a clean-tech company in Woodridge, has raised another $18 million in capital.The company makes chemicals from renewable sources, such as palm oil, using novel technology developed by a Nobel Prize-winning chemist at California Institute of Technology. It has raised more than $300 million since it was spun out of Cargill in 2007.