Optimization of dihydroxystearic acid (DHSA) production via in situ hydrolysis of Epoxidized oleic acid using Taguchi Orthogonal Array design / Ismail Md Rasib

Optimization of dihydroxystearic acid (DHSA) production via in situ hydrolysis of Epoxidized oleic acid using Taguchi Orthogonal Array design / Ismail Md Rasib

Concern regarding the setback of dependency on using fossil fuels as the main resources as the precursor for many derivatives had drawn an attention to further study on production of dihydroxystearic acid (DHSA) by in-situ hydrolysis of epoxidized oleic acid with reaction rate estimate by MATLAB by...

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Main Author: Md Rasib, Ismail
Format: Thesis
Language:English
Published: 2023
Subjects:
Production management
Operations management
Online Access:https://ir.uitm.edu.my/id/eprint/88630/1/88630.pdf
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spelling my-uitm-ir.886302024-01-16T07:41:28Z Optimization of dihydroxystearic acid (DHSA) production via in situ hydrolysis of Epoxidized oleic acid using Taguchi Orthogonal Array design / Ismail Md Rasib 2023 Md Rasib, Ismail Production management. Operations management Concern regarding the setback of dependency on using fossil fuels as the main resources as the precursor for many derivatives had drawn an attention to further study on production of dihydroxystearic acid (DHSA) by in-situ hydrolysis of epoxidized oleic acid with reaction rate estimate by MATLAB by using 27 data from previous experiment which provide all the parameter involved and optimum parameter later decided by Taguchi method, which are more resource friendly due to low number of experiment need to be done and can further be used as a raw material in cosmetic industry. Epoxidized oleic acid are produced by using in situ formed performic acid (HCOOOH), which are the mixture of formic acid (HCOOH) as the oxygen carrier with hydrogen peroxide (H2O2) as the oxygen donor. Ode 45 method by MATLAB provide the kinetic simulation of the oxirane oxygen ring degradation throughout the epoxidation process with the expected concentration of DHSA produce. Taguchi method further propose the most optimum parameter for DHSA production as in H2O2 / oleic acid molar ratio 1.5, HCOOH / oleic acid molar ratio 0.5, reaction temperature at 35 °C with agitation speed at 200 RPM. This setup produce crude DHSA with hydroxyl value of 267 mg KOH/g and further prove by lower hydroxyl value quantity present from non-optimum parameter by Taguchi method where parameters are changed to H2O2 / oleic acid molar ratio 0.5 and reaction temperature at 50 °C show lower hydroxyl value content at 172.9 and 263.1 mg KOH/g respectively. DHSA produce, which known as crude DHSA are further purify order for it to be use in cosmetic industry. Physicochemical properties of crude and purify DHSA are compared, where hydroxyl value for purify is higher as compared to crude with 333.1 mg KOH/g and 267 mg KOH/g respectively. Others properties such as higher iodine value in crude compared to purified also proven with value 8.9 to 3.7 respectively, and the form or particle size which show the most significance properties where it is semi solid for crude DHSA and white powder form with particle size of 125-63 μm for purify DHSA. Overall, purify DHSA was successfully produce from oleic acid with low number of running experiment due to prediction by MATLAB and Taguchi method on the reaction rate and the most optimum parameter for epoxidation process. 2023 Thesis https://ir.uitm.edu.my/id/eprint/88630/ https://ir.uitm.edu.my/id/eprint/88630/1/88630.pdf text en public masters Universiti Teknologi MARA (UiTM) Faculty of Chemical Engineering Jalil, Mohd Jumain (Dr.)
institution Universiti Teknologi MARA
collection UiTM Institutional Repository
language English
advisor Jalil, Mohd Jumain (Dr.)
topic Production management
Operations management
spellingShingle Production management
Operations management
Md Rasib, Ismail
Optimization of dihydroxystearic acid (DHSA) production via in situ hydrolysis of Epoxidized oleic acid using Taguchi Orthogonal Array design / Ismail Md Rasib
description Concern regarding the setback of dependency on using fossil fuels as the main resources as the precursor for many derivatives had drawn an attention to further study on production of dihydroxystearic acid (DHSA) by in-situ hydrolysis of epoxidized oleic acid with reaction rate estimate by MATLAB by using 27 data from previous experiment which provide all the parameter involved and optimum parameter later decided by Taguchi method, which are more resource friendly due to low number of experiment need to be done and can further be used as a raw material in cosmetic industry. Epoxidized oleic acid are produced by using in situ formed performic acid (HCOOOH), which are the mixture of formic acid (HCOOH) as the oxygen carrier with hydrogen peroxide (H2O2) as the oxygen donor. Ode 45 method by MATLAB provide the kinetic simulation of the oxirane oxygen ring degradation throughout the epoxidation process with the expected concentration of DHSA produce. Taguchi method further propose the most optimum parameter for DHSA production as in H2O2 / oleic acid molar ratio 1.5, HCOOH / oleic acid molar ratio 0.5, reaction temperature at 35 °C with agitation speed at 200 RPM. This setup produce crude DHSA with hydroxyl value of 267 mg KOH/g and further prove by lower hydroxyl value quantity present from non-optimum parameter by Taguchi method where parameters are changed to H2O2 / oleic acid molar ratio 0.5 and reaction temperature at 50 °C show lower hydroxyl value content at 172.9 and 263.1 mg KOH/g respectively. DHSA produce, which known as crude DHSA are further purify order for it to be use in cosmetic industry. Physicochemical properties of crude and purify DHSA are compared, where hydroxyl value for purify is higher as compared to crude with 333.1 mg KOH/g and 267 mg KOH/g respectively. Others properties such as higher iodine value in crude compared to purified also proven with value 8.9 to 3.7 respectively, and the form or particle size which show the most significance properties where it is semi solid for crude DHSA and white powder form with particle size of 125-63 μm for purify DHSA. Overall, purify DHSA was successfully produce from oleic acid with low number of running experiment due to prediction by MATLAB and Taguchi method on the reaction rate and the most optimum parameter for epoxidation process.
format Thesis
qualification_level Master's degree
author Md Rasib, Ismail
author_facet Md Rasib, Ismail
author_sort Md Rasib, Ismail
title Optimization of dihydroxystearic acid (DHSA) production via in situ hydrolysis of Epoxidized oleic acid using Taguchi Orthogonal Array design / Ismail Md Rasib
title_short Optimization of dihydroxystearic acid (DHSA) production via in situ hydrolysis of Epoxidized oleic acid using Taguchi Orthogonal Array design / Ismail Md Rasib
title_full Optimization of dihydroxystearic acid (DHSA) production via in situ hydrolysis of Epoxidized oleic acid using Taguchi Orthogonal Array design / Ismail Md Rasib
title_fullStr Optimization of dihydroxystearic acid (DHSA) production via in situ hydrolysis of Epoxidized oleic acid using Taguchi Orthogonal Array design / Ismail Md Rasib
title_full_unstemmed Optimization of dihydroxystearic acid (DHSA) production via in situ hydrolysis of Epoxidized oleic acid using Taguchi Orthogonal Array design / Ismail Md Rasib
title_sort optimization of dihydroxystearic acid (dhsa) production via in situ hydrolysis of epoxidized oleic acid using taguchi orthogonal array design / ismail md rasib
granting_institution Universiti Teknologi MARA (UiTM)
granting_department Faculty of Chemical Engineering
publishDate 2023
url https://ir.uitm.edu.my/id/eprint/88630/1/88630.pdf
_version_ 1794192134859915264

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