Study of pyrolysis kinetic of green corn husk
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Study of pyrolysis kinetic of green corn husk Thiago Olinek Reinehr1 · Monalisa Ayumi Ohara2 · Mayara Patricia de Oliveira Santos2 · João Lucas Marques Barros3 · Paulo Rodrigo Stival Bittencourt4 · Ilton José Baraldi2 · Edson Antônio da Silva1 · Elciane Regina Zanatta2 Received: 18 October 2018 / Accepted: 6 October 2020 © Akadémiai Kiadó, Budapest, Hungary 2020
Abstract In this paper, it was suggested the use of green corn husk, which is a biomass from agro-industry, as an alternative source of energy through its pyrolysis. Green corn husk characterization was done through immediate and elemental analysis of its components: cellulose, hemicelluloses, and lignin. It was also measured its higher calorific value. The pyrolysis study of green corn husk was done by the isoconversion and the Master plots method. Thermogravimetric plots were obtained at heating rates of 5, 10, 15, and 20 °C min−1. The pyrolysis kinetics parameters were studied through the Flynn–Wall–Ozawa (FWO), Kissinger, and Friedman models. The Master plots method was used to determine the pyrolysis reaction order. The results of the reaction energy activation were found to be in the range 105.21–157.46 kJ mol−1 by the FWO method, 150.50 kJ mol−1 by the Kissinger method, and ranged 120.66–163.81 kJ mol−1 by the Friedman method. The Master plots method showed a three-way-transport diffusional kinetics for the biomass de-volatilization process. The higher calorific value found for green corn husk was 16.14 MJ kg−1. The simulation showed correlation between the experimental data and the proposed model for conversion values up to 0.8. Keywords Thermogravimetry · Agroindustrial waste · Renewable energy · Flynn–Wall–Ozawa method · Master plots
Introduction The utilization of fossil fuels in recent history takes dominant role in the energy production sector, though it is probably the major reason for global warming and climate change due to the emissions of carbon dioxide, sulfur and nitrogen compounds [1, 2]. Oil is a non-renewable energy source and * Thiago Olinek Reinehr [email protected] 1
Scholl of Chemical Engineering, Western State University of Parana - UNIOESTE, Rua da Faculdade 645, Toledo, PR 85903‑000, Brazil
2
Academic Department of Food, Federal Technological University of Parana - UTFPR, Av. Brasil 4232, Medianeira, PR CEP 85884‑000, Brazil
3
Combustion and Propulsion Associated Laboratory, National Institute for Space Research - INPE, Rodovia Presidente Dutra, km 40, SP/RJ, Cachoeira Paulista, SP CEP 12630‑970, Brazil
4
Academic Department of Chemistry, Federal Technological University of Parana - UTFPR, Av. Brasil 4232, Medianeira, PR CEP 85884‑000, Brazil
is in charge for a high carbon fingerprint [3]. Therefore, it is necessary to develop fuel from renewable raw materials [4], such as biomass. Even though at the moment, it is almost impossible to exclude non-renewable energy sources, the utilization of renewable sources may decrease the greenhouse gas emissions and reduce the pollution level in some way [1]. Bioma
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