What are teh different grains ethonal can be produced out of and which one is best so far have found out corn

Question

so far have found out that corn, potatoes, grass, and cellouse can be converted and so apperantly can rum but what is the difference are can they be mis matched and what other things can also be converted what would make the best fuel

Answer 1

There are a number of different products that are used to make ethanol, but the difference between them is how much ethanol is produce from that type of crop.  As reported in "The Energy Balance of Corn Ethanol: an Update," the energy returned on energy invested (EROEI) for ethanol made from corn in the U.S. is 1.34 (it yields 34% more energy than it takes to produce it). Input energy includes natural gas based fertilizers, farm equipment, transformation from corn or other materials, and transportation. However, other researchers report that the production of ethanol consumes more energy than it yields.  In comparison, sugar cane ethanol EROEI is at around 8 (it yields 8 joules for each joule used to produce it).[citation needed] Recent research suggests that cellulosic crops such as switchgrass provide a much better net energy production than corn, producing over five times as much energy as the total used to produce the crop and convert it to fuel.  If this research is confirmed, cellulosic crops will most likely displace corn as the main fuel crop for producing bioethanol.

Answer 2

Any organic vegetable matter can be converted into ethanol. This includes weeds, grass clippings, corn husks, corn stalks, leaves, bark, ANYTHING. To be using grain such as corn or rice or rye to manufacture ethanol should be a criminal offense. It makes the process excessively expensive and produces food shortages on the world market.