Eventos Anais de eventos
ENCIT 2016
16th Brazilian Congress of Thermal Sciences and Engineering
A THERMOGRAVIMETRIC STUDY ON DEVOLATILIZATION OF RICE HUSK DURING PYROLYSIS
Submission Author:
Fábio Roberto Vieira , SP , Brazil
Co-Authors:
Natalia Ribeiro Galina, Carlos Manuel Romero Luna, Gretta Larisa Aurora Arce Ferrufino, Ivonete Ávila
Presenter: Fábio Roberto Vieira
doi://10.26678/ABCM.ENCIT2016.CIT2016-0411
Abstract
Biomass is one of the most abundant renewable energy sources and is possible to reduce the greenhouse gases emission using alternatively for power generation. The energy recovery from biomass can be performed by thermochemical processes (combustion, gasification e pyrolysis), however, pyrolysis have been receiving special attention than other processes. Pyrolysis of biomass is a process of thermochemical decomposition in an inert medium of lignocellulosic material. This process has great potential for producing bio-fuels using non-food sources such as agricultural, urban, industrial and animal wastes. The rice is the cereal most used in the world and 20% of weight is husk, thus provides a large amount of waste. The low density of the rice husk is an important factor in the unfeasibility of its power generation use due to the high cost of transport. In this way; rice producers often perform uncontrolled burning leading to the emission of pollutants. The Brazilian Institute of Agricultural Economics (IEA) indicates the Paraiba Valley as the largest producer of this cereal in the São Paulo state, which accounts for about 50% of production. In this work, the slow pyrolysis of rice husk using thermogravimetric analysis (TGA) is studied. Preliminary results demonstrates that the rice husk have 62.24% of volatile matter and 29.34% is bio-char (15,88% fixed carbon and 13,46% ash). The PCS of rice rusk was 15768±23,66 Joule/g, showing perfect conditions to submit this biomass under pyrolysis process. For better understanding the pyrolysis performance was studied based on work Lin et al., (2014).
Keywords
pyrolysis, Biomass, bio-char, rice husk, TGA, devolatilization, pyrolysis, Biomass, bio-char, rice husk, TGA, devolatilization, pyrolysis, Biomass, bio-char, rice husk, TGA, devolatilization
