Characterization of the products from the pyrolysis of sewage sludge in 1 kg/h rotating cylinder reactor

The objectives of this study were to produce and characterize bio-fuels through the thermal treatment of sewage sludge in an 1 kg/h rotating cylinder reactor. The experimental procedure was divided into three parts: (a) initial test using the temperatures of 450, 500, 550, 600 and 650 °C while the n...

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Principais autores:	Pedroza, Marcelo Mendes, Sousa, João Fernandes de, Vieira, Glaúcia Eliza Gama, Bezerra, Márcio Barbalho Dantas
Formato:	article
Idioma:	English
Publicado em:	Elsevier
Assuntos:	Char Sewage sludge Pyrolysis Rotating cylinder reactor Characterization Bio-oil
Endereço do item:	https://repositorio.ufrn.br/handle/123456789/38011
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spelling	ri-123456789-380112021-09-27T20:04:03Z Characterization of the products from the pyrolysis of sewage sludge in 1 kg/h rotating cylinder reactor Pedroza, Marcelo Mendes Sousa, João Fernandes de Vieira, Glaúcia Eliza Gama Bezerra, Márcio Barbalho Dantas Char Sewage sludge Pyrolysis Rotating cylinder reactor Characterization Bio-oil The objectives of this study were to produce and characterize bio-fuels through the thermal treatment of sewage sludge in an 1 kg/h rotating cylinder reactor. The experimental procedure was divided into three parts: (a) initial test using the temperatures of 450, 500, 550, 600 and 650 °C while the nitrogen flow, the centrifuge rotation and biomass flow were kept constant, (b) 24–1 fractional experimental design and (c) experiments exclusively for the characterization of gaseous fraction, using the temperatures of 500, 550 and 600 °C. The maximum liquid yield was 10.5% obtained at the temperature of 500 °C, inert gas of 200 mL/min, biomass flow of 22 g/min and centrifuge rotation of 20 Hz. The maximum char yield was 61.9%, obtained at 500 °C, inert gas of 100 mL/min, biomass flow of 4 g/min and centrifuge rotation frequency of 20 Hz. The highest phase gas yield was 23.3%, obtained at 600 °C, inert flow rate of 200 mL/min, biomass flow rate of 22 g/min and rotation frequency of 30 Hz. The bio-oil had the following characteristics: pH between 6.80 and 6.84, density between 1.05 g/mL and 1.09 g/mL, viscosity between 2.5 cSt and 3.1 cSt and high heating value between 16.91 MJ/kg and 17.85 MJ/kg. Non-oxygenated aliphatic (55%) and aliphatic oxygenated hydrocarbons (27%) were found in the bio-oil. The main components detected in the gas phase were H2, CO, CO2 and CH4. Hydrogen was the main constituent, with a yield of 46.2% at 600 °C. Among the hydrocarbons formed, methane was predominant (16.6%) at 500 °C. The results show that increasing the temperature from 500 to 600 °C favors the increase in the gaseous phase and reduction of solid and liquid fractions 2021-09-24T13:56:05Z 2021-09-24T13:56:05Z 2014-01 article PEDROZA, M.M.; SOUSA, J.F.; VIEIRA, G.e.G.; BEZERRA, M.B.D.. Characterization of the products from the pyrolysis of sewage sludge in 1 kg/h rotating cylinder reactor. Journal Of Analytical And Applied Pyrolysis, [S.L.], v. 105, p. 108-115, jan. 2014. Disponível em: https://www.sciencedirect.com/science/article/pii/S0165237013002222?via%3Dihub#!. Acesso em: 24 set. 2021. http://dx.doi.org/10.1016/j.jaap.2013.10.009. https://repositorio.ufrn.br/handle/123456789/38011 10.1016/j.jaap.2013.10.009 en Attribution 3.0 Brazil http://creativecommons.org/licenses/by/3.0/br/ application/pdf Elsevier
institution	Repositório Institucional
collection	RI - UFRN
language	English
topic	Char Sewage sludge Pyrolysis Rotating cylinder reactor Characterization Bio-oil
spellingShingle	Char Sewage sludge Pyrolysis Rotating cylinder reactor Characterization Bio-oil Pedroza, Marcelo Mendes Sousa, João Fernandes de Vieira, Glaúcia Eliza Gama Bezerra, Márcio Barbalho Dantas Characterization of the products from the pyrolysis of sewage sludge in 1 kg/h rotating cylinder reactor
description	The objectives of this study were to produce and characterize bio-fuels through the thermal treatment of sewage sludge in an 1 kg/h rotating cylinder reactor. The experimental procedure was divided into three parts: (a) initial test using the temperatures of 450, 500, 550, 600 and 650 °C while the nitrogen flow, the centrifuge rotation and biomass flow were kept constant, (b) 24–1 fractional experimental design and (c) experiments exclusively for the characterization of gaseous fraction, using the temperatures of 500, 550 and 600 °C. The maximum liquid yield was 10.5% obtained at the temperature of 500 °C, inert gas of 200 mL/min, biomass flow of 22 g/min and centrifuge rotation of 20 Hz. The maximum char yield was 61.9%, obtained at 500 °C, inert gas of 100 mL/min, biomass flow of 4 g/min and centrifuge rotation frequency of 20 Hz. The highest phase gas yield was 23.3%, obtained at 600 °C, inert flow rate of 200 mL/min, biomass flow rate of 22 g/min and rotation frequency of 30 Hz. The bio-oil had the following characteristics: pH between 6.80 and 6.84, density between 1.05 g/mL and 1.09 g/mL, viscosity between 2.5 cSt and 3.1 cSt and high heating value between 16.91 MJ/kg and 17.85 MJ/kg. Non-oxygenated aliphatic (55%) and aliphatic oxygenated hydrocarbons (27%) were found in the bio-oil. The main components detected in the gas phase were H2, CO, CO2 and CH4. Hydrogen was the main constituent, with a yield of 46.2% at 600 °C. Among the hydrocarbons formed, methane was predominant (16.6%) at 500 °C. The results show that increasing the temperature from 500 to 600 °C favors the increase in the gaseous phase and reduction of solid and liquid fractions
format	article
author	Pedroza, Marcelo Mendes Sousa, João Fernandes de Vieira, Glaúcia Eliza Gama Bezerra, Márcio Barbalho Dantas
author_facet	Pedroza, Marcelo Mendes Sousa, João Fernandes de Vieira, Glaúcia Eliza Gama Bezerra, Márcio Barbalho Dantas
author_sort	Pedroza, Marcelo Mendes
title	Characterization of the products from the pyrolysis of sewage sludge in 1 kg/h rotating cylinder reactor
title_short	Characterization of the products from the pyrolysis of sewage sludge in 1 kg/h rotating cylinder reactor
title_full	Characterization of the products from the pyrolysis of sewage sludge in 1 kg/h rotating cylinder reactor
title_fullStr	Characterization of the products from the pyrolysis of sewage sludge in 1 kg/h rotating cylinder reactor
title_full_unstemmed	Characterization of the products from the pyrolysis of sewage sludge in 1 kg/h rotating cylinder reactor
title_sort	characterization of the products from the pyrolysis of sewage sludge in 1 kg/h rotating cylinder reactor
publisher	Elsevier
publishDate	2021
url	https://repositorio.ufrn.br/handle/123456789/38011
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Characterization of the products from the pyrolysis of sewage sludge in 1 kg/h rotating cylinder reactor

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