DSpace Collection:
http://hdl.handle.net/11624/175
2024-03-20T17:32:22ZGerenciamento de riscos no transporte e manuseio de produtos perigosos.
http://hdl.handle.net/11624/2524
Title: Gerenciamento de riscos no transporte e manuseio de produtos perigosos.
Authors: Corrêa, Cristhielle Rodrigues2019-01-01T00:00:00ZUtilização de biomassa de microalga Arthrospira platensis para produção de etanol com aumento de escala.
http://hdl.handle.net/11624/2491
Title: Utilização de biomassa de microalga Arthrospira platensis para produção de etanol com aumento de escala.
Authors: Julich, Jennifer2019-01-01T00:00:00ZDesenvolvimento de um sistema de pirólise aquecido por micro-ondas.
http://hdl.handle.net/11624/2489
Title: Desenvolvimento de um sistema de pirólise aquecido por micro-ondas.
Authors: Sosa, Eduardo Ezequiel Antunes
Abstract: The aim of this work was to design, assemble and apply a microwave-assisted pyrolysis system in a laboratory scale. In this system the pyrolysis of rice husk and soybean oil combined was carried out, using wood charcoal as the microwave absorber and carbon dioxide as the carrier gas. Four series of experiments were carried out to evaluate the individual influence of some operational variables on the yield of liquid phase (bio-oil). The variables evaluated were the carrier gas flow, the microwave power, the percentage of absorber added and the ratio between rice husk and soybean oil. Through the results of the experiments it was verified that the variables that most influenced the results were the composition of the biomass and the power of the microwave. The experiment with the highest yield was performed under the conditions of CO2 flow of 1 L/min, microwave power in 100% (700 W), 5 g (10% of the total biomass) of coal added and 50 g of biomass in 1 to 1 ratio of rice hulls and soybean oil (25 g each). This experiment yielded 30.9% of liquid phase in a wet basis of biomass, however the product of the pyrolysis presented high humidity, which resulted in the formation of two phases. The non-aqueous phase of the bio-oil had a calorific value of 34.25 MJ/kg, and medium infrared spectroscopy (MIR) assisted in the description of its composition. The results obtained demonstrated that microwave assisted pyrolysis is a promising process for the production of biofuels and other molecules of industrial interest.2019-01-01T00:00:00Z