I have been asked by some friends regarding the compulsions for focusing so much on Cellulose when we can do the same in a much simpler manner at a much lower cost with other renewable materials like Sugar cane or corn grains. The reasons may be fairly obvious to many but I will try to capture all arguments together to drive home the point in this post.
1. Food versus Fuel Controversy:
This is the first and foremost reason for pursuing cellulose for ethanol over food based feedstocks like sugar cane or Corn grains. Carbohydrates present in Cellulose ( present mainly in wood, straw, and much of non-edible portions of plant kingdom) cannot be digested by humans. Therefore it doesn’t compete or interfere with food production.
2.Cost of feedstock:
There are two factors that bring down the cost of cellulosic feedstock. They are discussed below:
A. Yield Factor:
This is…
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