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Zen, Muhammad Rizky
Teknik Sistem Energi, Institut Teknologi Sumatera, Lampung Selatan – Indonesia
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health Other

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Evaluation of Pyrolysis Temperature and Time on The Quality Improvement of Calliandra Wood Charcoal Briquettes as An Alternative Energy Source Murda, Rio Ardiansyah; Pasaribu, Try Vista Ulina Br; Wahyuningrum, Maeda; Zen, Muhammad Rizky; Maulana, Sena; Rinaldi, Nino; Maulana, Muhammad Iqbal; Munawaroh, Khoryfatul; Lizardi, Fathi; Faedloni, Akbar Ash Shiddiqi
Molekul Vol 21 No 1 (2026)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2026.21.1.14411

Abstract

ABSTRACT. Calliandra (Calliandra calothyrsus) wood is a promising biomass feedstock due to its abundance and high calorific value. This study investigated the effects of pyrolysis temperature (400 °C and 500 °C) and residence time (30 and 60 minutes) on the quality of calliandra charcoal briquettes. Biomass was carbonised, mixed with 15% cassava starch binder, pressed, and oven dried. The briquettes were evaluated for yield, density, moisture, ash, volatile matter, fixed carbon, calorific value, combustion rate, and structural changes. Results showed that all parameters except yield were significantly influenced by temperature and time. FTIR analysis revealed increased aromatisation at higher pyrolysis conditions, while XRD indicated reduced cellulose crystallinity and the emergence of calcite and silica phases. The briquettes exhibited densities of 0.62–0.63 g/cm³, moisture contents of 2.14–2.73%, ash 3.55–4.91%, volatile matter 16.32–25.11%, fixed carbon 68.60–76.63%, calorific values 7,856–7,978 cal/g, and combustion rates 0.08–0.09 g/min. The condition of 400 °C for 30 minutes offered the most balanced performance, while 500 °C for 60 minutes yielded the highest carbonisation and energy content. These findings highlight that moderate pyrolysis conditions can produce efficient, high-quality briquettes with low energy input. Keywords: Biomass, calliandra wood, energy, pyrolysis, wood charcoal briquettes
Co-Authors Achmad Gus Fahmi Agus Adi Putra Aji Suhartoyo Apriansyah Julio Arirohman, Ilham Dwi Arminda, Wenny Cahaya Prautama Chairunnisa Noviarini Chairunnisa Noviarini Devy Arysandi Faedloni, Akbar Ash Shiddiqi Fahmi Sapta Hadi Fano Alfian Ardyansyah Gaol, Javeni Eysama L. Hasbiyalloh, Hasbiyalloh Hotdimas Simanjuntak Kamaruddin, Maqbul Khoirun Naimah Khoryfatul Munawaroh Kiki Yuli Handayani Kusuma, Alfajar Puja Leily Nurul Komariah Lizardi, Fathi Madi, Madi Maulana, Muhammad Iqbal Maulana, Sena Michelle Maria Magdalena Napitupulu Michelle Maria Magdalena Napitupulu Muhammad Khanafi Muhammad Miftahur Rahman Naimah, Khoirun Nino Rinaldi Pasaribu, Try Vista Ulina Br Purba, Leonardo D. Rafi, Risfihan Rahmatullah, Abri Siti Muslimah Soelami, F.X. Nugroho Susila Arita Uswatun Mujahidah Wahyuningrum, Maeda Wicaksono, Rihardian Maulana Yunesti, Putty