The illustration depicts the procedure for producing ethanol, which is a type of biofuel used as energy for transportation.
Overall, the complex process includes a repetitive cycle with nine distinct steps divided into three main stages: harvesting and pre-processing, chemically converting the cellulose to ethanol, and using it as energy for transportation, after which the cycle repeats.
Initially, the sun plays a pivotal role in photosynthesis, helping plants and trees grow by absorbing carbon dioxide. Once matured, they are harvested and moved to pre-processing to extract cellulose for chemical treatments.
The method continues with the cellulose strips undergoing chemical modification to obtain sugars. After that, microbes are added to the sugars to activate the fermentation process, which produces ethanol. Subsequently, ethanol is converted into biofuel for use in different vehicles such as cars, trucks, and planes. While the vehicles emit carbon dioxide, the exhaust fumes are reabsorbed by plants and trees, perpetuating the cycle.