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Journal : Jurnal Inotera

Feasibility Analysis of Industrial-Scale Pyrolysis of 200 kg Polyethylene and Polystyrene Plastic Waste Dewi, Indah Noor Dwi Kusuma; Muhammad, Alief; Achmadin, Wahyu Nur; Andrie; Helsinky, Mava Nurhaliza; Aprillia, Wulan
Jurnal Inotera Vol. 10 No. 1 (2025): January-June 2025
Publisher : LPPM Politeknik Aceh Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31572/inotera.Vol10.Iss1.2025.ID461

Abstract

This study analyzes the feasibility of industrial-scale pyrolysis of polyethylene (PE) and polystyrene (PS) plastic waste with a feedstock capacity of 200 kg per day. PE and PS plastics are pyrolyzed at temperatures of 400°C, 450°C, and 500°C until the feedstock is fully decomposed, indicated by the cessation of smoke emission from the reactor. The optimal conditions obtained are then used as a reference for energy calculations in a 200 kg industrial-scale process. The pyrolysis duration varies depending on the type of plastic and operating temperature, with the longest time recorded for PE pyrolysis at 450°C for 98 minutes, while the shortest time was observed for PS pyrolysis at 400°C for 31 minutes. The resulting heating rate indicates that higher temperatures lead to lower heating rates for both PE and PS plastics. The results indicate that increasing the temperature enhances the oil yield (v/wo) up to a certain limit before it begins to decline. The pyrolysis oil yield from PS plastic is higher than that from PE, as styrene monomers naturally exist in a liquid phase. The oil yield from PS remains relatively constant despite temperature increases, whereas the yield from PE follows an increasing trend before declining at the highest temperature. The decrease in PS pyrolysis oil density at higher temperatures also suggests differences in physical characteristics compared to PE. The energy consumption analysis indicates that PS plastic pyrolysis requires more energy than PE, with an average energy consumption of 75.14–77.57 kJ/g for PS and 18.7–33.94 kJ/g for PE. However, the oil yield from PS reaches approximately 79–80% of its initial weight, which is higher than that of PE pyrolysis oil. From an economic perspective, converting PE and PS plastic waste into fuel is not entirely feasible, as the energy produced is insufficient to sustain the pyrolysis process itself. The revenue from selling PE pyrolysis oil amounts to Rp 14,729,000 per month, while PS pyrolysis oil generates Rp 30,927,000 per month. Nevertheless, the social benefits of reducing plastic waste provide an added value that cannot be overlooked.
Co-Authors A. A. Permanasari Abdillah, Hartawan Abdillah, Hartawan Abdillah Abdul Basit Abdul Basit Achmadin, Wahyu Nur Adi Mulyadi Adi Mulyadi Afandi, M. Bayu Agung Fitrahadi Ahmad Fauzan Ahmad Fauzan Ahmad Iskandar Rahmansyah Ahmad Izzuddin Akbar Anugrah Ikhsani Andi Sanata Andrianata, Mufid Andrie Angga Prasmana Aprillia, Wulan Asrori, Tamam Asrori, Tamam Asrori Audiananti Meganandi Kartini Citra Suardi Dani Hari Tunggal Prasetiyo Dewi Izzatus Tsamroh Dewi, Indah Noor Dwi Kusuma Dini, Joko Sugiono Eka Prasetya Djoko Wahyudi Djoko Wahyudi Djoko Wahyudi Djoko Wahyudi Eva Kurnia Yulyawan Fathuddin Noor, Muhammad GAMMA ADITYA RAHARDI Hartawan Abdillah Helsinky, Mava Nurhaliza Hendra, Joni Hermanto Hermanto Hermanto Hermawan, Nanang Indah Noor Dwi Kusuma Dewi Indah Noor Dwi Kusuma Dewi Indayani, Sulis Dyah Candra Iswardani, Kurnia Isyuniandri, Dzaky Jibril Maulana Joni Hendra Judi , Suharsono Kurniawan, Tri Nanda Indra Linda Kurnia Linda Kurnia Supraptiningsih Luthfi, Nur Ahmad Mas Ahmad Baihaqi Mas Ahmad Baihaqi Mas, Ahmad Baihaqi Mochamad Fani Nur Umri Mochammad Rizky Kurniawan Mufid Andrianata Muhammad Muhammad Zainal Roisul Amin MutindaTeguh Widayanto N. A. Ahmad Nafis, Raihan Nasrul Ilminnafik Nisak, Indani Khoirun Noor, Muhammad Fathuddin Novan Fithrianto Prasetiyo, Dani Hari Tuggal Putri, Salsabillah Widya Eka Putro Adi Pamungkas Rr. Poppy Puspitasari S. M. S. N. S. Zahari Saeful Bakhri Setyawati, Ika Setyo Pambudi Siti Masluha Suharsono, Judi T. Pasang Tamam Asrori Tamam Asrori Trifiananto, Muhammad Triyastutik, Annisa Ayu Wahyu Nur Achmadin Wahyu Nur Achmadin Wahyu Nur Achmadin Winda Ayu Mundari Yazirin, Cepi Yulyawan, Eva Kurnia