Bio-fuels
Bio-fuels refer to fuels made from plants. It is a little confusing because oil is also a bio-fuel, but one that take millions of years to produce. You may wonder why I didn't include natural gas in the last sentence. THe reason is that natural gas is produced from decay of all kinds of wastes, including plant matter, but takes 30 days or less to produce. Thus, it fits perfectly well into the basket of bio-fuels, even though a lot of it has been produced and stored millions of years ago. Most frequently, we refer to grain acchols, and vegetable oils as bio-fuels, and of course they are. But, the most often produced bio-fuel, natural gas needs to be brought back into the conversatiion, and given the promenance that it deserves. We will discuss the pros and cons of the main bio-fuels in this section on Renewable Energy/Bio-fuels.
Overview of biofuels
Alcohols:
Bio-fuels made from distillation of grains are currentlyfavored for fuel in transportation.
Pros:
Cons:
Bio-diesel:
Vegetable oils can be effectiviely converted to bio-diesel