Esterification of free fatty acids in used cooking oil using ion-exchange resins as catalysts: An efficient pretreatment method for biodiesel feedstock

Esterification of free fatty acids in used cooking oil using ion-exchange resins as catalysts: An efficient pretreatment method for biodiesel feedstock

The esterification of used cooking oil (UCO) with methanol was studied using different types of ion-exchange resins, that is, Purolite D5081, Purolite D5082, and Amberlyst 36. Several catalyst characterization analyses (elemental analysis, surface area measurement, particle size distribution analysi...

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Main Authors: Sumaiya, Zainal Abidin, F. Haigh, Kathleen, Saha, Basudeb
Format: Article
Language:English
Published: American Chemical Society (ACS Publications) 2012
Subjects:
TP Chemical technology
Online Access:http://umpir.ump.edu.my/id/eprint/27000/
http://umpir.ump.edu.my/id/eprint/27000/
http://umpir.ump.edu.my/id/eprint/27000/
http://umpir.ump.edu.my/id/eprint/27000/1/Esterification%20of%20free%20fatty%20acids%20in%20used%20cooking%20oil%20using%20ion-exchange%20.pdf
id ump-27000
recordtype eprints
spelling ump-270002020-02-25T07:33:52Z http://umpir.ump.edu.my/id/eprint/27000/ Esterification of free fatty acids in used cooking oil using ion-exchange resins as catalysts: An efficient pretreatment method for biodiesel feedstock Sumaiya, Zainal Abidin F. Haigh, Kathleen Saha, Basudeb TP Chemical technology The esterification of used cooking oil (UCO) with methanol was studied using different types of ion-exchange resins, that is, Purolite D5081, Purolite D5082, and Amberlyst 36. Several catalyst characterization analyses (elemental analysis, surface area measurement, particle size distribution analysis, scanning electron microscopy analysis, true density measurement, and acid capacity analysis) have been conducted in the screening stage. Of all of the catalysts investigated, Purolite D5081 resin showed the best catalytic performance and was selected for further experimental studies. The esterification process was carried out in a jacketed stirred batch reactor for 8 h. Elimination of mass transfer resistances and the effect of catalyst loading (0.5–1.5% w/w), reaction temperature (50–65 °C), and methanol to UCO feed mole ratio (4:1–12:1) on the conversion of FFAs were investigated. The highest FFAs conversion was found to be 92%, at a catalyst loading of 1.25% w/w, 60 °C reaction temperature, 6:1 methanol to UCO molar ratio, and stirring speed of 475 rpm. During the reusability study, the conversion of catalyst dropped by 8–10% after each reutilization cycle. Several experiments have been conducted through the homogeneous contribution study, and the results confirmed that both resin pore blockage and sulfur leaching are dominant factors that decrease the catalytic performance of Purolite D5081 ion-exchange resin. American Chemical Society (ACS Publications) 2012 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/27000/1/Esterification%20of%20free%20fatty%20acids%20in%20used%20cooking%20oil%20using%20ion-exchange%20.pdf Sumaiya, Zainal Abidin and F. Haigh, Kathleen and Saha, Basudeb (2012) Esterification of free fatty acids in used cooking oil using ion-exchange resins as catalysts: An efficient pretreatment method for biodiesel feedstock. Industrial and Engineering Chemistry Research, 51 (45). pp. 14653-14664. ISSN 0888-5885 https://doi.org/10.1021/ie3007566 https://doi.org/10.1021/ie3007566
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Sumaiya, Zainal Abidin
F. Haigh, Kathleen
Saha, Basudeb
Esterification of free fatty acids in used cooking oil using ion-exchange resins as catalysts: An efficient pretreatment method for biodiesel feedstock
description The esterification of used cooking oil (UCO) with methanol was studied using different types of ion-exchange resins, that is, Purolite D5081, Purolite D5082, and Amberlyst 36. Several catalyst characterization analyses (elemental analysis, surface area measurement, particle size distribution analysis, scanning electron microscopy analysis, true density measurement, and acid capacity analysis) have been conducted in the screening stage. Of all of the catalysts investigated, Purolite D5081 resin showed the best catalytic performance and was selected for further experimental studies. The esterification process was carried out in a jacketed stirred batch reactor for 8 h. Elimination of mass transfer resistances and the effect of catalyst loading (0.5–1.5% w/w), reaction temperature (50–65 °C), and methanol to UCO feed mole ratio (4:1–12:1) on the conversion of FFAs were investigated. The highest FFAs conversion was found to be 92%, at a catalyst loading of 1.25% w/w, 60 °C reaction temperature, 6:1 methanol to UCO molar ratio, and stirring speed of 475 rpm. During the reusability study, the conversion of catalyst dropped by 8–10% after each reutilization cycle. Several experiments have been conducted through the homogeneous contribution study, and the results confirmed that both resin pore blockage and sulfur leaching are dominant factors that decrease the catalytic performance of Purolite D5081 ion-exchange resin.
format Article
author Sumaiya, Zainal Abidin
F. Haigh, Kathleen
Saha, Basudeb
author_facet Sumaiya, Zainal Abidin
F. Haigh, Kathleen
Saha, Basudeb
author_sort Sumaiya, Zainal Abidin
title Esterification of free fatty acids in used cooking oil using ion-exchange resins as catalysts: An efficient pretreatment method for biodiesel feedstock
title_short Esterification of free fatty acids in used cooking oil using ion-exchange resins as catalysts: An efficient pretreatment method for biodiesel feedstock
title_full Esterification of free fatty acids in used cooking oil using ion-exchange resins as catalysts: An efficient pretreatment method for biodiesel feedstock
title_fullStr Esterification of free fatty acids in used cooking oil using ion-exchange resins as catalysts: An efficient pretreatment method for biodiesel feedstock
title_full_unstemmed Esterification of free fatty acids in used cooking oil using ion-exchange resins as catalysts: An efficient pretreatment method for biodiesel feedstock
title_sort esterification of free fatty acids in used cooking oil using ion-exchange resins as catalysts: an efficient pretreatment method for biodiesel feedstock
publisher American Chemical Society (ACS Publications)
publishDate 2012
url http://umpir.ump.edu.my/id/eprint/27000/
http://umpir.ump.edu.my/id/eprint/27000/
http://umpir.ump.edu.my/id/eprint/27000/
http://umpir.ump.edu.my/id/eprint/27000/1/Esterification%20of%20free%20fatty%20acids%20in%20used%20cooking%20oil%20using%20ion-exchange%20.pdf
first_indexed 2023-09-18T22:42:21Z
last_indexed 2023-09-18T22:42:21Z
_version_ 1777416999212679168

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