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In this research paper you can find a complete evaluation of the technologies to produce ethanol via fermentation taking into account the technical, economical and environmental elements. To begin this, we made a deep analysis of the materials we have referring this topic, so that we could previously select all the possibilities we can evaluate. After this we consider the strongest one and the ones with more opportunities. These are the fallowing process to obtain ethanol from sugar cane honey, process to obtain ethanol from a mix of sugar cane honey, juice obtain from the filters and secondary juice and technological way to obtain ethanol from sugar cane honey, juice obtain from the filters and bagasse. We made a design and selection of the equipment in each alternative. We also characterize the residues and evaluate the environmental impact of each alternative. The last step was and economical evaluation where we found the final cost of investment and production and we also obtain the rentability of each process. [ABSTRACT FROM AUTHOR]

The state of the art of the anhydrous alcohol production from banana rejects is described by a comparative analysis of the previous studies about the alternative uses of this fruit at Urabá Antioqueño from 1980 until now. It takes in consideration the availability of the fruit, its chemical composition, the physicochemical processes involved in the production of anhydrous bioethanol, and the potential environmental impacts of this industry. Whereas banana rejects are vast, uncertainty about its availability for the alcohol industry subsists because the fruit is utilized in composting and animal feeding. Although the advancements and possibilities to upgrade the traditional processes (meaning acid or enzymatic hydrolysis and alcohol fermentation), ABE fermentation emerges as an industrial process in the near future, accompanied by dehydration technologies such as pervaporation and bioadsorption. Environmental assessments about the ethanol production from green banana have not been reported thus far. [ABSTRACT FROM AUTHOR]