Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
TECHNO-ECONOMIC ANALYSIS OF TORREFACTION, DRYING AND BRIQUETTING OF EUCALYPTUS FOR ENERGY GENERATION
Submission Author:
Bruno Santos Silva , BA , Brazil
Co-Authors:
Bruno Santos Silva, Julio Augusto Mendes da Silva, Ednildo Torres
Presenter: Bruno Santos Silva
doi://10.26678/ABCM.COBEM2017.COB17-0279
Abstract
With the increasing need for renewable energy sources due to possible fossil fuel scarcity in a near future and due to the pollution caused by these fuels, which degrade the environment, there is a need to look for alternatives. The torrefaction of eucalyptus is a soft pyrolysis treatment (thermal treatment) with temperatures up to 300°C that has a positive influence on energy generation when logistics and combustion efficiency are taken into consideration. The main benefits of this process are the increase in energy density, which lowers transport costs and the resulting properties that are more suitable for storage. The purpose of this paper is to assess the techno-economic feasibility of the torrefaction, briquetting and drying processes used prior to the transport by trains to the power plants. Calculations based on data obtained from related literature and companies have been made for the assessment. The results indicated that the most economical scenario in the climate conditions of the city of Aratu is the one using torrified eucalyptus briquettes for distances greater than about 240 km and solar dried eucalyptus for smaller distances. For the climate conditions of the city of São Desidério the most economical scenario is the one using torrified eucalyptus briquettes for distances greater than about 295 km and solar dried eucalyptus for smaller distances.
Keywords
energy, Torrefaction, Briquetting, Railways, Eucalyptus
