Transesterification Reaction Using Zinc Aluminate as Heterogeneous Catalyst and Supercritical Carbon Dioxide
Biodiesel was produced from waste frying oil (WFO) by transesterification with ethanol and methanol, using supercritical carbon dioxide, as a reaction medium, and a spinel-like zinc aluminate heterogeneous catalyst. The reaction runs were carried out for 2 h taking samples every 30 min, using alcoho...
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AIDIC Servizi S.r.l.
2013-06-01
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Series: | Chemical Engineering Transactions |
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doaj-143505d5390b4327bd9f0523db3553442021-02-22T20:59:16ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162013-06-013210.3303/CET1332148Transesterification Reaction Using Zinc Aluminate as Heterogeneous Catalyst and Supercritical Carbon DioxideC.T. AlvesH.M.C.D. AndradeR.C. SantosS.A.B. Vieira De MeloE.A. TorresBiodiesel was produced from waste frying oil (WFO) by transesterification with ethanol and methanol, using supercritical carbon dioxide, as a reaction medium, and a spinel-like zinc aluminate heterogeneous catalyst. The reaction runs were carried out for 2 h taking samples every 30 min, using alcohol: oil molar ratio of 40:1, temperature range of 100 – 200 °C, catalyst dosage of 1- 10 %wt, under 700 rpm stirring. The biodiesel products were analyzed by gas chromatography according to DIN EN 14105. The influence of reaction parameters, such as temperature; catalyst dosage and reaction time in supercritical CO2, on the biodiesel yield was discussed. The results showed high yields (>96.5 %) of biodiesel for both ethanol and methanol at 200 °C after 30 min of reaction, showing that the heterogeneous catalyst used contributed to increase in the biodiesel yield in a short reaction time.https://www.cetjournal.it/index.php/cet/article/view/6542 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
C.T. Alves H.M.C.D. Andrade R.C. Santos S.A.B. Vieira De Melo E.A. Torres |
spellingShingle |
C.T. Alves H.M.C.D. Andrade R.C. Santos S.A.B. Vieira De Melo E.A. Torres Transesterification Reaction Using Zinc Aluminate as Heterogeneous Catalyst and Supercritical Carbon Dioxide Chemical Engineering Transactions |
author_facet |
C.T. Alves H.M.C.D. Andrade R.C. Santos S.A.B. Vieira De Melo E.A. Torres |
author_sort |
C.T. Alves |
title |
Transesterification Reaction Using Zinc Aluminate as Heterogeneous Catalyst and Supercritical Carbon Dioxide |
title_short |
Transesterification Reaction Using Zinc Aluminate as Heterogeneous Catalyst and Supercritical Carbon Dioxide |
title_full |
Transesterification Reaction Using Zinc Aluminate as Heterogeneous Catalyst and Supercritical Carbon Dioxide |
title_fullStr |
Transesterification Reaction Using Zinc Aluminate as Heterogeneous Catalyst and Supercritical Carbon Dioxide |
title_full_unstemmed |
Transesterification Reaction Using Zinc Aluminate as Heterogeneous Catalyst and Supercritical Carbon Dioxide |
title_sort |
transesterification reaction using zinc aluminate as heterogeneous catalyst and supercritical carbon dioxide |
publisher |
AIDIC Servizi S.r.l. |
series |
Chemical Engineering Transactions |
issn |
2283-9216 |
publishDate |
2013-06-01 |
description |
Biodiesel was produced from waste frying oil (WFO) by transesterification with ethanol and methanol, using supercritical carbon dioxide, as a reaction medium, and a spinel-like zinc aluminate heterogeneous catalyst. The reaction runs were carried out for 2 h taking samples every 30 min, using alcohol: oil molar ratio of 40:1, temperature range of 100 – 200 °C, catalyst dosage of 1- 10 %wt, under 700 rpm stirring. The biodiesel products were analyzed by gas chromatography according to DIN EN 14105. The influence of reaction parameters, such as temperature; catalyst dosage and reaction time in supercritical CO2, on the biodiesel yield was discussed. The results showed high yields (>96.5 %) of biodiesel for both ethanol and methanol at 200 °C after 30 min of reaction, showing that the heterogeneous catalyst used contributed to increase in the biodiesel yield in a short reaction time. |
url |
https://www.cetjournal.it/index.php/cet/article/view/6542 |
work_keys_str_mv |
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