Claim Missing Document
Check
Articles

Found 1 Documents
Search
Journal : Reaktor

The Kinetics of Calcium Oxide Catalyzed Esterification of Glycerol with Free Fatty Acids Using Pseudo-homogeneous Model Approach Megawati Megawati; Dhoni Hartanto; Catur Rini Widyastuti; Diyah Saras Wati; Eny Nurhayati
Reaktor Volume 18 No. 1 March 2018
Publisher : Dept. of Chemical Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (684.331 KB) | DOI: 10.14710/reaktor.18.1.1-6

Abstract

Abstract This research aims to study the reaction kinetics of esterification reaction of glycerol with free fatty acid (FFA) using calcium oxide catalyst to produce mono-diacylglycerol (MDAG) using pseudo-homogeneous approach. The effects of time and temperature on the reaction conversion were investigated simultaneously. The FFA used was from the waste of cocoa production process, while the solid catalyst used was calcium oxide from eggshell ash. The results show that the cocoa based FFA was composed of palmitic acid (49.24%), methyl stearate (1.05%), oleic acid (25.39%), and stearic acid (24.32%). The calcium oxide content in the eggshell ash was 60% w/w. At all temperatures studied (60, 70, and 80oC), as the reaction time increased, the conversion increased sharply in the first 5 minute followed by a gradual raise to an almost constant value after 20 minutes (0.844; 0.845; and 0.854, respectively). Pseudo-homogeneous second order model can describe the reaction kinetics satisfactorily. The reaction constants (k) at 60, 70, and 80oC were 0.00384, 0.003401, and 0.003518 (L/mole.minute), respectively. The effects of temperature on reaction rate obey the Arrhenius’ equation with collision factor (A) is 0.2659 (L/mole.minute) and activation energy (Ea) is 3544 J/mol. Keywords: calcium oxide; free fatty acid; glycerol; pseudo-homogeneous approach
Co-Authors Agung Ari Wibowo Agung Ari Wibowo Agung Ari Wibowo Agung Ari Wibowo Akhmad Sutrisno Andri Cahyo Kumoro Anugrahani, Viona Widya Asalil Mustain Asalil Mustain Asalil Mustain Asalil Mustain Asriningtyas Ajeng Erprihana, Asriningtyas Ajeng Bahlawan, Zuhriyan Ash Shiddieqy Bayu Tri Wibowo Bayu Triwibowo Catur Rini Widyastuti, Catur Rini Chafidz, Achmad Cucuk Evi Lusiani Cucuk Evi Lusiani Dewi Selvia Fardhyanti Dimas Rahadian Aji Muhammad, Dimas Rahadian Aji Diyah Saras Wati Eny Nurhayati Erprihana, Asriningtyas Ajeng Fazlena Hamzah Fazlena Hamzah Fidyawati, F Hadikawuryan, Danang Subarkah Hamzah, Fazlena Haniif Prasetiawan Harumi Veny Harumi Veny Ibnu Eka Rahayu Irene Nindita Pradnya Khalimatus Sa'diyah Khalimatus Sa'diyah Khoiroh, Ianatul Khoiroh, Ianatul Kuntoro Kuntoro Kusuma, Andre Dianata Hogi Loveyanto, Rendy Okta Maftukhaturrizqiyah, Maftukhaturrizqiyah Maksiola, Masni Megawati - Megawati Megawati Megawati Megawati Mezaki, Naufal Mudrik Miradatul Najwa Muhd Rodhi Miradatul Najwa Muhd Rodhi Mohamad Nor, Nur Fatin Syafiqah Mufid Mufid Mufid Mufid Muhammad Fikri Al Ghifari Muhammad Zarin Amin Zainal Muhd Rodhi, Miradatul Najwa Mutaqin, Afrizal Mai Nugroho, Febry Dwi Nur Qudus Oktafiani Oktafiani, Oktafiani Oktafiani, Oktafiani Oktafiani, Oktafiani Pradnya, Irene Nindita Prima Astuti Handayani Purwana, Yulian Candra Radenrara Dewi Artanti Putri, Radenrara Dewi Artanti Rahayu, Ibnu Eka Rakhmawati, Fatih Ratna Dewi Kusumaningtyas Ria Wulansarie, Ria Riza Mazidu Sholihin Rizqy Romadhona Ginting Rizqy Romadhona Ginting Rizqy Romadhona Ginting Santi Wijayanti, Dwi Gansar Sarina Sulaiman Satya Budi Nugraha Sazali, Rozana Azrina Siti Nurrohmah Sutrisno, Akhmad Suwito, Slamet Syamrizal, Zakky Syifa Karimah Takwanto, Anang Veny, Harumi Wahid Akhsin Budi Nur Sidiq, Wahid Akhsin Budi Nur Waliyuddin Sammadikun Wara Dyah Pita Rengga Wibowo, Bayu Tri Widi Astuti Wijayanti, Reni Titis Wulansari, Durroti Zuhriah Zakaria, Zainul Akmar