A reactive coupling process for co-production of solketal and biodiesel

A “reactive coupling” process for one-pot transesterification of rapeseed oil into fatty acid methyl esters (FAME) for biodiesel, and in situ acetalisation of the glycerol by-product to solketal was investigated by both an experimental and a kinetic modelling approach. The aim was to develop a proce...

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Main Authors: Al-Saadi Luma Sh., Eze Valentine C., Harvey Adam P.
Format: Article
Language:English
Published: De Gruyter 2019-01-01
Series:Green Processing and Synthesis
Subjects:
Online Access:https://doi.org/10.1515/gps-2019-0020
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author Al-Saadi Luma Sh.
Eze Valentine C.
Harvey Adam P.
author_facet Al-Saadi Luma Sh.
Eze Valentine C.
Harvey Adam P.
author_sort Al-Saadi Luma Sh.
collection DOAJ
description A “reactive coupling” process for one-pot transesterification of rapeseed oil into fatty acid methyl esters (FAME) for biodiesel, and in situ acetalisation of the glycerol by-product to solketal was investigated by both an experimental and a kinetic modelling approach. The aim was to develop a process with a more valuable co-products than glycerol, and to minimise glycerol production. The results showed that a one-stage reactive coupling achieved a solketal yield of 39.5 ± 5.1% and FAME yield of 99% after 8 h at 10:7:1 of methanol: acetone: oil molar ratio. However, based on these results and the predictions of the kinetic model developed, a “two-stage” reactive coupling process was investigated, in which some of the acetone was added later in the process. The two-stage process was demonstrated to achieve up to 98 ± 0.5% FAME and 82 ± 4% solketal yields under the same operating conditions.
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spelling doaj.art-8a98f9864fe0429083c1983db3d3f4772022-12-21T19:55:28ZengDe GruyterGreen Processing and Synthesis2191-95502019-01-018151652410.1515/gps-2019-0020gps-2019-0020A reactive coupling process for co-production of solketal and biodieselAl-Saadi Luma Sh.0Eze Valentine C.1Harvey Adam P.2School of Engineering, Newcastle University Newcastle upon Tyne, NE1 7RU, United KingdomSchool of Engineering, Newcastle University Newcastle upon Tyne, NE1 7RU, United KingdomSchool of Engineering, Newcastle University Newcastle upon Tyne, NE1 7RU, United KingdomA “reactive coupling” process for one-pot transesterification of rapeseed oil into fatty acid methyl esters (FAME) for biodiesel, and in situ acetalisation of the glycerol by-product to solketal was investigated by both an experimental and a kinetic modelling approach. The aim was to develop a process with a more valuable co-products than glycerol, and to minimise glycerol production. The results showed that a one-stage reactive coupling achieved a solketal yield of 39.5 ± 5.1% and FAME yield of 99% after 8 h at 10:7:1 of methanol: acetone: oil molar ratio. However, based on these results and the predictions of the kinetic model developed, a “two-stage” reactive coupling process was investigated, in which some of the acetone was added later in the process. The two-stage process was demonstrated to achieve up to 98 ± 0.5% FAME and 82 ± 4% solketal yields under the same operating conditions.https://doi.org/10.1515/gps-2019-0020reactive couplingbiodieselsolketalkinetic modellingdesign of experiment statistics
spellingShingle Al-Saadi Luma Sh.
Eze Valentine C.
Harvey Adam P.
A reactive coupling process for co-production of solketal and biodiesel
Green Processing and Synthesis
reactive coupling
biodiesel
solketal
kinetic modelling
design of experiment statistics
title A reactive coupling process for co-production of solketal and biodiesel
title_full A reactive coupling process for co-production of solketal and biodiesel
title_fullStr A reactive coupling process for co-production of solketal and biodiesel
title_full_unstemmed A reactive coupling process for co-production of solketal and biodiesel
title_short A reactive coupling process for co-production of solketal and biodiesel
title_sort reactive coupling process for co production of solketal and biodiesel
topic reactive coupling
biodiesel
solketal
kinetic modelling
design of experiment statistics
url https://doi.org/10.1515/gps-2019-0020
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