http://www.ethanolrfa.org/pages/how-ethanol-is-made
http://www.amg-eng.com/blog/corn-wet-milling-vs-dry-milling/
https://encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcRDryp_2MD-7jQuoPuaf-bodKOiBmGJL6Z9bhT5dXCGKLpnUafr7A
https://www.youtube.com/watch?v=ZkX9rVtCa7c
http://www.sciences360.com/index.php/how-is-ethanol-made-14927/
http://www.icminc.com/innovation/ethanol/ethanol-production-process.html
http://www.uni-saarland.de/fak8/schneider/anichem/struktur/ethanol.gif