Resumo:
This Work shows and compares the economical feasibility of sugar mills diversification in
Brazil for 3 types of cogeneration technologies: backpressure turbines (TCP), two extractions
condensation turbines (TCE) and bagasse gasification with gas turbines combined cycles
(BIG GT). A fraction of the bagasse used to the electric cogeneration is by-passed and
hidrolysed for confined cattle food production. This ready ration is sold to cattle breeder
during the time of the crop that coincides with dry season when cattle food shortage is usual.
This allowed to obtain larger specific profits for ton of milled cane per year. These specific
profits are still more significant in diversified mills with two extractions condensation
turbines operating with 60 kgf/cm2 steam pressure as current technological alternative. Future
technological perspectives of diversification using bagasse gasification and gas turbine
combined cycles (BIG GT) are presented with a potential annual profit higher than for all the
previous ones.
