The diagram shows the way such biofuel as ethanol is produced from trees and plants.
Overall, the process begins when plants and trees grow by absorbing sunlight and carbon dioxide and finishes when carbon dioxide is released by cars and thereby returned to the atmosphere. The process includes several key stages such as harvesting, pre-processing, processing and is fully repeatable.
The cycle begins when trees absorb sunlight and carbon dioxide from air to grow, after which they are harvested for further processing. Next, these harvested plants are pre-processed, namely they are chopped into small pieces by means of a shredder. Following this, these chops are turned into cellulose, which undergo the chemical process on the following step, during which sugars are extracted from them. After that, these sugars are mixed together with Microbes. The microbes consume sugars, leaving ethanol which is then used as a fuel for Cars, Trucks and Planes. When moving, these vehicles burn ethanol and release Carbon Dioxide, which is ready to be consumed by plants again. Following this, the process starts over again.