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Recovery of carotenoids from crude palm oil using organic solvent nanofiltration

The recovery of carotene from crude palm oil prior to refining would add significant value to the country’s palm oil industry. Various methods are currently available to yield high concentrations of carotene. These methods however, have many disadvantages when factors such as cost, and energy consum...

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Main Author: Mohd. Hanim, Khairilanuar
Format: Thesis
Language:English
Published: 2014
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/53662/25/KhairilanuarMohdHanimMFCHe2014.pdf
http://eprints.utm.my/id/eprint/53662/
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spelling my.utm.536622020-09-01T01:32:53Z http://eprints.utm.my/id/eprint/53662/ Recovery of carotenoids from crude palm oil using organic solvent nanofiltration Mohd. Hanim, Khairilanuar TP Chemical technology The recovery of carotene from crude palm oil prior to refining would add significant value to the country’s palm oil industry. Various methods are currently available to yield high concentrations of carotene. These methods however, have many disadvantages when factors such as cost, and energy consumption are weighed into consideration. This work presents the application of organic solvent nanofiltration membranes for the separation of carotene from a crude palm oil (CPO)/solvent system. Filtration tests were conducted using a dead-end filtration set-up, utilizing four different polyimide membranes and four different solvents. PuraMem™ 280 showed the best performance, with a selectivity of 1.25 when hexane was used as the solvent. Runs using DuraMem™ 150, DuraMem™ 300 and DuraMem™ 500 showed low or no selectivity between carotene and triglyceride in all solvents. It was found that rejection of carotene depends strongly on the type of solvents and membrane type and therefore is critical for carotene separation. Lower applied pressure and low feed concentrations improved the membrane selectivity. The effect of solute-solvent coupling was much higher towards lower molecular weight component (carotene) and at lower pressures. Theoretical pore size of the membrane was predicted using sets of equations relating the diffusivity of the solutes and the experimental rejection results. Results showed that the theoretical pore size of membrane PuraMem™ 280 was between 1.38 nm to 1.85 nm. The effect of concentration polarisation was predicted, and result showed that in this system, the effect of concentration polarization was very minimal, where cw/cb was only between 1.06 to 1.24. Generally, high feed concentrations increased the feed viscosity, resulting in significant osmotic pressures and reduces the permeate flux. 2014-06 Thesis NonPeerReviewed application/pdf en http://eprints.utm.my/id/eprint/53662/25/KhairilanuarMohdHanimMFCHe2014.pdf Mohd. Hanim, Khairilanuar (2014) Recovery of carotenoids from crude palm oil using organic solvent nanofiltration. Masters thesis, Universiti Teknologi Malaysia, Faculty of Chemical Engineering. http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:90811
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic TP Chemical technology
spellingShingle TP Chemical technology
Mohd. Hanim, Khairilanuar
Recovery of carotenoids from crude palm oil using organic solvent nanofiltration
description The recovery of carotene from crude palm oil prior to refining would add significant value to the country’s palm oil industry. Various methods are currently available to yield high concentrations of carotene. These methods however, have many disadvantages when factors such as cost, and energy consumption are weighed into consideration. This work presents the application of organic solvent nanofiltration membranes for the separation of carotene from a crude palm oil (CPO)/solvent system. Filtration tests were conducted using a dead-end filtration set-up, utilizing four different polyimide membranes and four different solvents. PuraMem™ 280 showed the best performance, with a selectivity of 1.25 when hexane was used as the solvent. Runs using DuraMem™ 150, DuraMem™ 300 and DuraMem™ 500 showed low or no selectivity between carotene and triglyceride in all solvents. It was found that rejection of carotene depends strongly on the type of solvents and membrane type and therefore is critical for carotene separation. Lower applied pressure and low feed concentrations improved the membrane selectivity. The effect of solute-solvent coupling was much higher towards lower molecular weight component (carotene) and at lower pressures. Theoretical pore size of the membrane was predicted using sets of equations relating the diffusivity of the solutes and the experimental rejection results. Results showed that the theoretical pore size of membrane PuraMem™ 280 was between 1.38 nm to 1.85 nm. The effect of concentration polarisation was predicted, and result showed that in this system, the effect of concentration polarization was very minimal, where cw/cb was only between 1.06 to 1.24. Generally, high feed concentrations increased the feed viscosity, resulting in significant osmotic pressures and reduces the permeate flux.
format Thesis
author Mohd. Hanim, Khairilanuar
author_facet Mohd. Hanim, Khairilanuar
author_sort Mohd. Hanim, Khairilanuar
title Recovery of carotenoids from crude palm oil using organic solvent nanofiltration
title_short Recovery of carotenoids from crude palm oil using organic solvent nanofiltration
title_full Recovery of carotenoids from crude palm oil using organic solvent nanofiltration
title_fullStr Recovery of carotenoids from crude palm oil using organic solvent nanofiltration
title_full_unstemmed Recovery of carotenoids from crude palm oil using organic solvent nanofiltration
title_sort recovery of carotenoids from crude palm oil using organic solvent nanofiltration
publishDate 2014
url http://eprints.utm.my/id/eprint/53662/25/KhairilanuarMohdHanimMFCHe2014.pdf
http://eprints.utm.my/id/eprint/53662/
http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:90811
_version_ 1677781084191850496
score 13.211869

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