Sarah Augustina¹, Ananda Suci Bazhafah², Jajang Sutiawan¹, Sudarmanto¹, Eko Setio Wibowo¹, Nissa Nurfajrin Solihat¹, Alvin Muhammad Savero¹, Ismadi Ismadi¹, Jayadi Jayadi³, Agus Sukarto Wismogroho⁴, Nuniek Ina Ratnaningtyas², Sukma Surya Kusumah^1,*

Journal of Renewable Materials, Vol.13, No.9, pp. 1765-1781, 2025, DOI:10.32604/jrm.2025.02025-0014 - 22 September 2025

Abstract The increasing demand for renewable energy sources has driven the exploration of innovative materials for biofuel production. This study investigates bio-pellet characteristics derived from several oyster mushroom baglog wastes with varying concentrations of molasses as an adhesive. The process began with sun-drying the baglog waste for three days, followed by oven drying at 80°C for 24 h. Bio-pellets were produced by blending baglog waste with molasses at concentrations of 5% and 10% (w/v), then subsequently fed into a pellet mill. The bio-pellets were left to rest for one hour before analysis. The quality of bio-pellets… More > Graphic Abstract

Luthfi Hakim^1,*, Apri Heri Iswanto^1,*, Yunida Syafriani Lubis², Adam Jagwani Wirawan¹, Ridwanti Batubara¹, Nam Hum Kim³, Petar Antov⁴, Tomasz Rogoziński⁵, Lee Seng Hua⁶, Lum Wei Chen⁷, Rangabhashiyam Selvasembian⁸, Jayusman², Jajang Sutiawan⁹

Journal of Renewable Materials, Vol.13, No.3, pp. 637-650, 2025, DOI:10.32604/jrm.2025.056365 - 20 March 2025

Abstract The utilisation of sugar palm bunches-charcoal briquettes (SPB-CB) represents a significant advancement in biomass energy. This study aimed to analyse the properties of charcoal briquettes produced from SPB (Arenga longipes). The experiment involved categorising the dimensions of charcoal powder into three specific particle sizes: 20–40 mesh, 40–60 mesh, and particles that could pass through a 60-mesh screen. The charcoal powder will be combined with tapioca as a binding agent at three specific concentrations: 11%, 13%, and 15%. The research findings indicate that the samples underwent 60 mesh passes achieved the maximum briquette density, with an average… More >

John Freddy Gelves Díaz^1,*, Ludovic Dorkis², Richard Monroy-Sepúlveda¹, Sandra Rozo-Rincón¹, Gabriel de Jesús Camargo Vargas³

Journal of Renewable Materials, Vol.11, No.9, pp. 3547-3566, 2023, DOI:10.32604/jrm.2023.029267 - 20 July 2023

Abstract The material associated with tree pruning in a city in the Colombian neotropics was characterized in order to determine its energy potential. The species studied for their relevance in the territory were Prosopis juliflora, Licania tomentosa, Terminalia catappa, Azadirachta indica, Pithecellobium dulce, Ficus benjamina and Leucaena leucocephala. Moisture content, bulk density, hygroscopic response, elemental chemical analysis, proximal analysis, calorific value, ease of ignition and combustion, thermogravimetric and heat flow analysis, steam generation capacity, and qualitative analysis of gases (mass spectrometry) were determined. The results that were obtained show high initial moisture contents that vary between 37% and 67% and a variable density… More > Graphic Abstract