Business Green: The world’s biggest refinery for making biofuels from wheat was unveiled at Wilton on Teeside yesterday, as the company behind the giant facility confirmed production will begin before Christmas. The £250m Ensus plant will turn wheat into transport fuel, animal feed and usable carbon dioxide for the food and beverage sector. The company said it has already struck a 10-year deal with Shell, which has seen the oil giant agree to purchase 400 million litres of bioethanol a year to …