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Kemija u industriji : Časopis kemičara i kemijskih inženjera Hrvatske, Vol. 68 No. 5-6, 2019.

Izvorni znanstveni članak

https://doi.org/10.15255/KUI.2018.039

Kinetics of Epoxidized Oleic Acid Derived from Palm Oil by in situ Generated Performic Acid

Mohd Jumain Jalil orcid id orcid.org/0000-0001-5205-4287 ; Faculty of Chemical Engineering, Universiti Teknologi MARA (UiTM) Pulau Pinang, 13 500 Permatang Pauh, Pulau Pinang, Malaysia
Mohd Saufi Md Zaini ; Faculty of Chemical Engineering, Universiti Teknologi MARA Cawangan Terengganu, Kampus Bukit Besi, 23 200 Dungun, Terengganu, Malaysia
Aliff Farhan Mohd Yamin ; Faculty of Chemical Engineering, Universiti Teknologi MARA (UiTM) Pulau Pinang, 13 500 Permatang Pauh, Pulau Pinang, Malaysia
Siu Hua Chang ; Faculty of Chemical Engineering, Universiti Teknologi MARA (UiTM) Pulau Pinang, 13 500 Permatang Pauh, Pulau Pinang, Malaysia
Norhashimah Mora ; School of Technology Industry, Universiti Sains, Malaysia
Abdul Hadi ; Faculty of Chemical Engineering, Universiti Teknologi MARA (UiTM) Pulau Pinang, 13 500 Permatang Pauh, Pulau Pinang, Malaysia

Puni tekst: engleski pdf 396 Kb

str. 181-187

preuzimanja: 906

citiraj

Sažetak

Epoxidized palm oleic acid is often regarded as a highly valuable oleochemical due to its wide range of industrial applications, including cosmetics, personal care, and pharmaceutical products. In this study, oleic acid derived from palm oil with iodine value of 98.99 g/100 g, containing 75 % of oleic acid, 12 % of linoleic acid, 6.5 % of palmitic acid, and 6.5 % of stearic acid was epoxidised by in situ generated performic acid with hydrogen peroxide as oxygen donor and formic acid as active oxygen carrier in the presence of catalytic amount of inorganic acid. The rate constant for epoxidation of oleic acid was found to be 1.133 ∙ 10–3 mol–1 s–1 and activation energy was 91.12 kJ mol–1 at temperature of 75 °C. In addition, thermodynamic parameters such as enthalpy, entropy, and free energy of activation were 88.2 kJ mol–1, −67.90 J mol–1 K–1, and 88.36 kJ mol–1, respectively. Relative conversion data showed that it was possible to develop epoxides from locally available, natural, renewable resources such as palm oil.


This work is licensed under a Creative Commons Attribution 4.0 International License.

Ključne riječi

epoxidation; palm oil; kinetic study; activation energy; oxirane

Hrčak ID:

220141

URI

https://hrcak.srce.hr/220141

Datum izdavanja:

13.6.2019.

Podaci na drugim jezicima: hrvatski

Posjeta: 1.581 *