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Nur Asma Deli
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Journal : Journal of Engineering Science and Technology Management

 1 
Synthesis of Methyl Ester Sulfonate from Crude Palm Oil Based on Aluminum Oxide Catalyst Deli, Nur Asma; Hariani, Razita; Nasution, Rahma Sari
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 1 (2025): Maret 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i1.237

Abstract

Surfactant is a surface active agent that reduces the surface tension of a medium, because it has the ability to combine parts between different phases such as air and water or phases that have different polarity such as oil and water. One of the vegetable oils that has great potential to be used as raw material for the manufacture of Methyl Ester Sulfonate (MES) is CPO. This Final Project aims to determine the manufacture of MES from CPO with Na2S2O5 as a sulfonation agent and understand the effect of Al2O3 (aluminum oxide) catalyst concentration on the characteristics of MES produced. The preparation of methyl esters was carried out by two-stage esterification and transesterification reactions using methanol as the alcohol source with H2SO4 as the acid catalyst and NaOH as the base catalyst. Sulfonation was carried out at temperature, ratio of methyl ester to Na2S2O5 1:1, Al2O3 catalyst concentration of 0.5%, 0.75%, 1%, 1.25%, and 1.5% and reaction time of 5 hours. The best results were obtained from the treatment of 0.75% Al2O3 catalyst concentration with the quality of MES produced having a yield of 88.27%, pH 7.51, acid number 4.48 mgKOH/g, density 887 kg/m3 and sulfonate absorbance value 0.155.
Influence of Hydrogen Peroxide on the Bleaching Process of Pulp Derived from Oil Palm Fronds and Empty Fruit Bunches Hariani, Razita; Asma Deli, Nur; Dhora, Anna
Journal of Engineering Science and Technology Management (JES-TM) Vol. 5 No. 1 (2025): Maret 2025
Publisher : Journal of Engineering Science and Technology Management

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jestm.v5i1.249

Abstract

Oil palm fronds and empty fruit bunches (EFB) are the main by-products of oil palm plantations. Typically, these residues are used for organic fertilizer, mat production, or as a growing medium for plants and fungi. However, oil palm fronds and EFB have high cellulose content, making them promising raw materials for pulp and paper production. This study aimed to investigate the pulp and papermaking process using oil palm fronds and EFB as raw materials. A soda pulping process was applied, followed by bleaching using various concentrations of hydrogen peroxide, namely 8%, 10%, 12%, 14%, and 16%. The results showed that optimal pulp and paper quality was achieved using 16% hydrogen peroxide, which produced pulp with a brighter and whiter appearance. The resulting paper showed a thickness of 0.62 mm, a grammage of 56.58 g/m², and a density of 35.07 kg/m³.  
Co-Authors Afdhal Afdhal Agung Pramono Am, Andri Nofiar Amelia , Suci Fitri Amelia, Suci Fitri Antoni Pribadi Antonius Jumadi Sihotang Antonius Sihotang Boris Kaido CAHYANI, ANNISA Dhora, Anna Dini Amalia Putri Dzulhijjah Yetti Fajar Aga Wandana Fatmayati Fatmayati Fenty Kurnia Oktorina Feri Agriani Fina Nasari Fitri Fitri habibie, indra Hanifah Khairiah Hayatul Khairul Rahmat Ivan Fadhillah Muhammad Ridwan Nasution, Rahma Sari Nethania Nava, Lilian Niken Ellani Patitis Nurbit, Nurbit Nurkholifah, Mahdiawan Octora Br. Turnip, Mariana Priyana, Winda Rahmad Akbar Ramadhan, Denis Rasihen, Yogy Razita Hariani Slamet Triyanto Sri Oktika Syahputri Sri Wahyuni Sri Wahyuni Sri Wahyuni Tri Kurniaty Umar Linggom Vitria Nur Qholiva, Hawa Yedi Sispurwanto Yelmi, Harmi