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All Journal Reaktor JURNAL KIMIA SAINS DAN APLIKASI Jurnal Bahan Alam Terbarukan Seminar Nasional Teknik Kimia Kejuangan Elkawnie Indonesian Journal of Science and Technology Konversi Info-Teknik Buletin Profesi Insinyur International Journal of Advance Tropical Food (IJATF) Jurnal Teknik Kimia dan Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Sains Materi Indonesia JURNAL REKAYASA KIMIA & LINGKUNGAN
Iryanti Fatyasari Nata, Iryanti Fatyasari
Department Of Chemical Engineering, Faculty Of Engineering, University Of Lambung Mangkurat
Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology

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Journal : Jurnal Teknik Kimia dan Lingkungan

 1 
Kinetic Study of Co-pyrolysis of Kelakai (Stenochlaena palustris) and Low-rank Coal (Lignite) Fadhillah, Hilda Nur; Wijayanti, Hesti; Mardina, Primata; Juwita, Rinna; Nata, Iryanti Fatyasari; Putra, Meilana Dharma; Madani, Zikri Daffa Aulia; Hendrawan, Rangga Dwi
Jurnal Teknik Kimia dan Lingkungan Vol. 9 No. 2 (2025): October 2025
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jtkl.v9i2.7195

Abstract

Recently, fossil fuels have still become a main source of energy and chemicals. Biomass conversion has become a promising technology to convert biomass into bio-energy and bio-chemicals. Kelakai, as a potential biomass, is abundant in wetland areas such as Kalimantan (Indonesia) and many other Asian regions, so that low-rank coal (lignite). Co-pyrolysis, the combined pyrolysis of biomass and lignite, is an attractive technique considering to its potential to enhance the efficiency of pyrolysis products. In this study, the thermal decomposition behavior and kinetic of co-pyrolysis of kelakai and lignite at various mass ratio composition (1:0, 3:1, 1:1, 1:3, and 0:1) were investigated. The experiments were performed on a thermogravimetric analyzer (TGA). The TGA result indicated that the kelakai highly decomposed at 257-400℃, while lignite was 286-500℃. Their blends were in between. In addition, thermogravimetric data were subsequently applied to a kinetic analysis based on the Arrhenius equation, with a first-order reaction. The kinetic analysis results, including activation energy and pre-exponential factor, were determined for the kelakai and lignite mixture were found to be in the range of 10.22-10.98 kJ/mol and 0.0651-0.1351 min-1, respectively. Knowledge of thermal decomposition characteristics of kelakai and its kinetics is essential for optimizing pyrolysis design. The co-pyrolysis kelakai and lignite resulted in the highest bio-oil yield of  26.86 wt% at the ratio of  0:1 and the lowest yield of 12.51 wt% for the ratio of 1:0, when using mixed ratios of kelakai and lignite, the highest yield was 24.60% (1:3) and the lowest yield was 21.18 wt% (1:1).
Co-Authors Abdul Ghofur Aceng Lesti Agata Febby Ayuningtyas Agita Purnawilda Agus Mirwan Aladin Eko Purkuncoro Anis Artiyani Asnia, Mira Azzahra, Atina Sabila Chairul Irawan Choir Muizliana Choir Muizliana, Choir Denis Yanuardi Dewi, Heny Puspita Dian Sylvana Ansari Dian Sylvana Ansari, Dian Sylvana Doni Rahmat Wicakso Edi Mikrianto Emil Zacky Effendi Fadhillah, Hilda Nur Fitri Halisyah Fitriannoor Fitriannoor Gita Cristy Helda Niawati Helda Niawati, Helda Hendrawan, Rangga Dwi Herlina Herlina Herlina Herlina Hesti Wijayanti Hesti Wijayanti Hesti Wijayanti I Putu Andika Putra I Putu Andika Putra, I Putu Andika Jayanudin Jayanudin Jefri A. Simanjuntak Jefriadi Jefriadi Jody Hartoto Prayogo Jody Hartoto Prayogo, Jody Hartoto Kiky Corneliasari Sembiring Lalu Mustiadi Madani, Zikri Daffa Aulia Marisa, Rosmasari Masrurotul Ajiza Meda Nur Anisa Meilana Dharma Putra Mira Asnia Mira Pangesti, Mira Misnawati Misnawati Muhammad Daffa Salaahuddin Muhammad Jauhar Mahdi Muthia Elma Nanik Astuti Rahman Ni Kadek Devi Ananda Saraswati Noor Laila Nooryantini Nooryantini Nor Asiyah Norlina Norlina, Norlina Paskah Fransiska Afrida Simatupang Primata Mardina Primata Mardina Retno Febriyanti Ridhayanti Mu'minah Rinna Juwita Rinna Juwita Rinny Jelita Ristiarini, Susana Rita Khairina Rodiansono Rodiansono Rosmasari Marisa Selly Agustina Sunnardianto, Gagus Ketut Syamsul Ma"arif Putera Ukhrawi Sylvera Bella Priscilla Toni Arianto Toni Arianto, Toni Tri Dianpalupidewi Tun Sriana Tun Sriana Yudhi Christian Hariady Yuli Ristianingsih Yulia Nurul Ma'rifah Yulian Firmana Arifin Yuniza Shentiya Dewi Yuniza Shentiya Dewi Zakaria Zakaria