In producing 2G ethanol, everything is reused, from start through finish of the process. At GranBio’s factory, lignin, one of the 2G byproducts, is burned with the bagasse to generate electricity. An unprecedented bioenergy solution in the sector – for the first time, lignin is being used like this in Brazil. This is an even more sustainable process than in the first generation, both for the extremely low levels of CO2 released into the atmosphere, and for the quantum of wastes generated.
The co-generation system, a partnership between GranBio and the Carlos Lyra group, has capacity to generate 200 metric tons of steam per hour. This will power the two plants and still export an excess of 135,000 MWh/year to the grid, enough to power a city of 300,000 inhabitants.
The co-generation system will remain in operation for eleven months of the year, or eight thousand hours, in the harvest and inter-harvest period at the Caeté plant. The project reinforces an irreversible trend in the Brazilian energy market.