Evaluation of the performance of bio-oil obtained through pyrolysis of coffee waste

Autor/innen

  • Monique Kort-Kamp Figueiredo Professor at Federal Institute of Education, Science and Technology of Rio de Janeiro - IFRJ, Duque de Caxias Campus, Multidisciplinary Laboratory of Waste Management – LMGR
  • Karolyne Nogueira de Castro Caldas Student at Federal Institute of Education, Science and Technology of Rio de Janeiro - IFRJ, Duque de Caxias Campus, 4Doctoral Student of Fluminense Federal University - UFF, Chemistry Laboratory - LABCON.
  • Beatriz Pereira do Nascimento Student at Federal Institute of Education, Science and Technology of Rio de Janeiro - IFRJ, Duque de Caxias Campus
  • Priscila Schroeder Doctoral Student of Fluminense Federal University - UFF, Chemistry Laboratory - LABCON.
  • Gilberto Alves Romeiro Professor at Fluminense Federal University - UFF, Chemistry Laboratory - LABCON.

DOI:

https://doi.org/10.5902/2236117029741

Abstract

Bio-oils are a complex blend of organic compounds formed by fragmentation of the structures present in biomass after undergoing a thermal process known as pyrolysis. Coffee waste is an organic residue discarded in large quantities in Brazil. This work aimed to evaluate some chemical and physicochemical characteristics of this oil, to seek economically viable uses for the product. Five pyrolysis procedures were employed and an average bio-oil yield of 18% was obtained. The oil was subjected to tests such as infrared, pour point and ash content. Infrared spectroscopy revealed an intense aliphatic character of the structure, which also had considerable presence of oxygen due to the presence of functional groups such as carbonylates, carboxylates, esters, ketones, amides and ether, as well as aromatics. The pour point determined for the bio-oil was 20° C and the ash content was less than 1%. 

Downloads

Keine Nutzungsdaten vorhanden.

Literaturhinweise

ABIC, Associação Brasileira da Indústria de Café. (2017) Estatística do Consumo Interno. Available at: URL <http://www.abic.com.br> Consulted: 30 July 2017

ASSOCIAÇÃO BRASILEIRA DE NORMAS TÉCNICAS. NBR 10.004: Resíduos sólidos - Classificação. Rio de Janeiro: 2004.

BRIDGWATER, A.V.; (2012) Upgrading biomass fast pyrolysis liquids. American Institute of Chemical Engineers, April 2012.

CALIXTO, G.Q.; (2016) Caracterização energética e avaliação dos produtos da pirólise rápida de resíduos agrícolas regionais. Universidade Federal do Rio Grande de Norte, RN, December 2016.

CONCEIÇÃO, M.M.; MACEDO, R.O.; SOUZA, A.G. (1998) Determinação do teor de umidade e cinzas e análise cinética do milho e derivados. Anais da Associação Brasileira de Química, v. 47, n.4, pp. 361-367.

EMBRAPA, Consórcio Pesquisa Café. (2017) Informe Estatístico do Café. Available at: <http://www.consorciopesquisacafe.com.br>e Consulted: 30 July 2017.

NASSIF, L. (2017) Brasil tem vantagens em biomassa residual. O Jornal de todos os Brasis, 2010. Available at: <http://jornalggn.com.br>. Consulted: 23 July 2017

OLIVEIRA A.L.; (2011) Desenvolvimento de uma unidade pirolítica com reator de cilindro rotativo: Obtenção de bio-óleo. Universidade Federal do Rio Grande do Norte, RN, May 2011.

ROCHA, J.D. et al; (2004) Aspectos Teóricos e Práticos do processo de pirólise de biomassa. Universidade Estadual de Campinas, Faculdade de Engenharia Agrícola, Bioware Tecnologia, SP, July 2004.

ROMEIRO, G.A. et al; (2012) A study of pyrolysis oil from soluble coffee ground using low temperature conversion (LTC) process. Journal of Analytical and Applied Pyrolysis, v. 93, pp. 47-51, 2012.

SANTOS, G. K.; (2011) Aspectos fundamentais da pirólise de biomassa em leito de jorro: Fluidodinâmica e cinética do processo. (tese doutorado), Universidade Federal de Uberlândia, MG, November 2011.

SCHROEDER, P.; (2017) Obtenção, avaliação e aplicações de bioprodutos obtidos da semente da graviola (Annona Muricata): processos químicos e termoquímicos. (dissertação de mestrado), Universidade Federal Fluminense, RJ, February 2017.

SCOTT, A. J.; KNOTT, M. A. (1974) A Cluster analysis method for grouping means in the analysis of variance. Biometrics. Raleigh, v.30, n.3, pp. 507-512. September.

SILVA, F. de A. S. and; AZEVEDO, C. A. V. DE. (2016) The Assistant Software Version 7.7. and its use in the analysis of experimental data. Afr. J. Adric. Res, v.11, n.39, pp. 3733-3740

Downloads

Veröffentlicht

2017-10-30

Zitationsvorschlag

Figueiredo, M. K.-K., Caldas, K. N. de C., Nascimento, B. P. do, Schroeder, P., & Romeiro, G. A. (2017). Evaluation of the performance of bio-oil obtained through pyrolysis of coffee waste. Revista Eletrônica Em Gestão, Educação E Tecnologia Ambiental, 21, 85–91. https://doi.org/10.5902/2236117029741

Am häufigsten gelesenen Artikel dieser/dieses Autor/in