Eventos Anais de eventos
COBEM 2023
27th International Congress of Mechanical Engineering
PYROLYSIS OF SUGARCANE BAGASSE CHEMICALLY TREATED WITH CITRIC ACID
Submission Author:
Kayky da Silva Obnesorg , SP
Co-Authors:
Kayky da Silva Obnesorg , Lyara Maria Morais Andrade, Ana Helena Campos Pereira, Bruna de Jesus Bueno Machado, Gretta Larisa Aurora Arce Ferrufino, Carlos Manuel Romero Luna
Presenter: Kayky da Silva Obnesorg
doi://10.26678/ABCM.COBEM2023.COB2023-1407
Abstract
Biomass is the fourth source of energy in the world and has been found to be a potential source of renewable energy, as it can simultaneously solve the problems of energy demand and reduce GHG emissions. Among all thermochemical processes, biomass pyrolysis has the potential to produce a liquid product known as bio-oil, which has potential as a biofuel, this can minimize dependence on fossil fuels. However, the bio-oil obtained has some deficiencies such as high-water content, acidity, high content of oxygenated compounds that decrease its calorific value and, therefore, its application. To improve the yield and quality of bio-oil, the literature presents several studies on biomass pretreatment processes, where pretreatment of biomass using dilute acid solutions has generated good results, being one of the most frequently researched and applied methods. Sugarcane bagasse is a resource available in Brazil, productivity tends to increase to satisfy the demand for ethanol. Thus, more bagasse is available. Sugarcane bagasse is currently used as a fuel to produce thermal and electrical energy, however up to 18% of the bagasse is lost through bacterial decomposition. In the literature there are several works on the pyrolysis of sugarcane bagasse to produce bio-oil. The recalcitrant nature of the bagasse has an influence on the quality and yield of the bio-oil. Thus, the inclusion of a chemical treatment step before pyrolysis is interesting, as it can improve the quality and yield of bio-oil, in addition it can even reduce the temperature of pyrolysis, significantly impacting energy consumption, making the process economically more efficient. viable. In this study, the sugarcane bagasse will be chemically treated using organic acid (citric acid) and then it will be pyrolyzed at 500°C considering 30 min. Product yields and quality of products was assessed. The preliminary results show that there is a decrease in the bio-oil yield and an increase in the pyrolytic gas.
Keywords
pyrolysis, CITRIC ACID, bagasse, TREATED
