EVALUATION OF THE NA/NB2O5 SYSTEM IN THE TRANSESTERIFICATION OF SOYBEAN OIL FOR BIODIESEL PRODUCTION
Biodiesel is considered an important substitute of diesel oil. Traditionally, it is obtained by the transesterification of vegetable oils with methanol or ethanol, catalyzed by NaOH or KOH. Heterogeneous catalysts have been studied with the aim at facilitating and diminishing costs with purification...
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Universidade Estadual Paulista
2018-04-01
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doaj-0bfa1d51ce59444e87897dfb29ad00e02020-11-24T21:11:51ZengUniversidade Estadual PaulistaEclética Química1678-46182018-04-01391354810.26850/1678-4618eqj.v39.1.2014.p35-4878EVALUATION OF THE NA/NB2O5 SYSTEM IN THE TRANSESTERIFICATION OF SOYBEAN OIL FOR BIODIESEL PRODUCTIONCarlos Eduardo Garção de Carvalho0Nelson Consolin-Filho1Anelise Maria Regiani2Rogerio Antonio Sartori3Andréa Maria Duarte de Farias4Edilson Simões Cadaxo Sobrinho5Luiz Eduardo Pizarro Borges6Wilma de Araújo Gonzalez7aCenter for Biological and Natural Sciences, Federal University of Acre, 69915-900 Rio Branco, ACFederal Technology University of Paraná, Chemistry Coordenation, 87301-006 Campo Mourão, PRCenter for Biological and Natural Sciences, Federal University of Acre, 69915-900 Rio Branco, ACCenter for Biological and Natural Sciences, Federal University of Acre, 69915-900 Rio Branco, ACLACAT, National Institute of Technology, 200081-310 Rio de Janeiro, RJCenter for Biological and Natural Sciences, Federal University of Acre, 69915-900 Rio Branco, ACDepartment of Chemical Engineering, Military Institute of Engineering, 22290-270 Rio de Janeiro, RJDepartment of Chemical Engineering, Military Institute of Engineering, 22290-270 Rio de Janeiro, RJBiodiesel is considered an important substitute of diesel oil. Traditionally, it is obtained by the transesterification of vegetable oils with methanol or ethanol, catalyzed by NaOH or KOH. Heterogeneous catalysts have been studied with the aim at facilitating and diminishing costs with purification stages. In the present work, the Na/Nb2O5 system was evaluated on the reaction of soybean oil with ethanol. It was verified, by DRX and IR, that the niobia calcined at 500ºC and impregnated with sodium underwent greater structural alterations than that treated at 300°C. These modifications allowed the generation of basic properties on niobia surface (Hammett and CO2 adsorption /IR). This catalyst showed the highest conversion (30%) among the used materials. The method chosen for evaluating the catalysts yield was the 1H NMR spectroscopy.https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/78 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Carlos Eduardo Garção de Carvalho Nelson Consolin-Filho Anelise Maria Regiani Rogerio Antonio Sartori Andréa Maria Duarte de Farias Edilson Simões Cadaxo Sobrinho Luiz Eduardo Pizarro Borges Wilma de Araújo Gonzalez |
spellingShingle |
Carlos Eduardo Garção de Carvalho Nelson Consolin-Filho Anelise Maria Regiani Rogerio Antonio Sartori Andréa Maria Duarte de Farias Edilson Simões Cadaxo Sobrinho Luiz Eduardo Pizarro Borges Wilma de Araújo Gonzalez EVALUATION OF THE NA/NB2O5 SYSTEM IN THE TRANSESTERIFICATION OF SOYBEAN OIL FOR BIODIESEL PRODUCTION Eclética Química |
author_facet |
Carlos Eduardo Garção de Carvalho Nelson Consolin-Filho Anelise Maria Regiani Rogerio Antonio Sartori Andréa Maria Duarte de Farias Edilson Simões Cadaxo Sobrinho Luiz Eduardo Pizarro Borges Wilma de Araújo Gonzalez |
author_sort |
Carlos Eduardo Garção de Carvalho |
title |
EVALUATION OF THE NA/NB2O5 SYSTEM IN THE TRANSESTERIFICATION OF SOYBEAN OIL FOR BIODIESEL PRODUCTION |
title_short |
EVALUATION OF THE NA/NB2O5 SYSTEM IN THE TRANSESTERIFICATION OF SOYBEAN OIL FOR BIODIESEL PRODUCTION |
title_full |
EVALUATION OF THE NA/NB2O5 SYSTEM IN THE TRANSESTERIFICATION OF SOYBEAN OIL FOR BIODIESEL PRODUCTION |
title_fullStr |
EVALUATION OF THE NA/NB2O5 SYSTEM IN THE TRANSESTERIFICATION OF SOYBEAN OIL FOR BIODIESEL PRODUCTION |
title_full_unstemmed |
EVALUATION OF THE NA/NB2O5 SYSTEM IN THE TRANSESTERIFICATION OF SOYBEAN OIL FOR BIODIESEL PRODUCTION |
title_sort |
evaluation of the na/nb2o5 system in the transesterification of soybean oil for biodiesel production |
publisher |
Universidade Estadual Paulista |
series |
Eclética Química |
issn |
1678-4618 |
publishDate |
2018-04-01 |
description |
Biodiesel is considered an important substitute of diesel oil. Traditionally, it is obtained by the transesterification of vegetable oils with methanol or ethanol, catalyzed by NaOH or KOH. Heterogeneous catalysts have been studied with the aim at facilitating and diminishing costs with purification stages. In the present work, the Na/Nb2O5 system was evaluated on the reaction of soybean oil with ethanol. It was verified, by DRX and IR, that the niobia calcined at 500ºC and impregnated with sodium underwent greater structural alterations than that treated at 300°C. These modifications allowed the generation of basic properties on niobia surface (Hammett and CO2 adsorption /IR). This catalyst showed the highest conversion (30%) among the used materials. The method chosen for evaluating the catalysts yield was the 1H NMR spectroscopy. |
url |
https://revista.iq.unesp.br/ojs/index.php/ecletica/article/view/78 |
work_keys_str_mv |
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