Utilization of Cocopeat, Empty Fruit Bunch, and Palm Kernel Shell as Renewable Energy Feedstock in Boiler

Annisa Bhikuning; Supriyadi Supriyadi; Sandi Apriandi Setiawan; Yustika Agustin; Suhaila Binti Hussain

doi:10.37385/4tv82m49

Authors

Annisa Bhikuning Universitas Trisakti
Supriyadi Supriyadi Universitas Trisakti
Sandi Apriandi Setiawan Universitas Trisakti
Yustika Agustin Universitas Trisakti
Suhaila Binti Hussain Universiti Malaysia Perlis

DOI:

https://doi.org/10.37385/4tv82m49

Keywords:

cocopeat, empty fruit bunch, palm kernel, boiler, emissions

Abstract

The increasing generation of biomass waste from coconut and palm oil industries presents both environmental challenges and opportunities for renewable energy utilization. This study evaluates the potential of cocopeat, empty fruit bunch (EFB), and palm kernel shell (PKS) as alternative fuels in boiler applications through fuel characterization, blending analysis, and thermochemical performance modeling. This research aims and objective to characterize the three wastes, determine the best composition mixture as boiler fuel, and estimate the potential exhaust gas emissions. This research uses laboratory testing methods, calculation of calorific value, and estimation of exhaust gas emissions (CO₂, SO₂, NO₂) using stoichiometric calculations and steam production modeling based on energy balance principles. The test was carried out by comparing cocopeat pellets (PECO); a mixture of 50% cocopeat and 50% EFB (BCO); PKS; and EFB. The results showed that 10% PECO, 30% EFB, 60% PKS has a high calorific value of 17.05 MJ/kg. Furthermore, NO₂ emissions and steam production rate are decreased to 3.42% and 7.93% than 20% PECO, 40% EFB, 40% PKS. This is due to the high value of the coconut shell fraction (PKS), which produces a high calorific value. Furthermore, the cocopeat mixture, consisting of 10%BCO, 30%EFB, and 60%PKS, has low NO₂emissions and can produce high steam in boilers. This indicates that cocopeat can be used as a new fuel when mixed with EFB, thereby maximizing the utilization of coconut waste and reducing environmental impact.

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References

Abdul Halim, S., Razali, N., & Mohd, N. (2020). Experimental data on the properties of pelletization of palm kernel shell using sago starch and sodium acetate. Data in Brief, 33, 106535. https://doi.org/10.1016/j.dib.2020.106535

Abdul Rahim, A.R., Johari, K., Saman, N., Mat, H. (2020). Sustainable Conversion of Coconut Wastes into Useful Adsorbents. In: Kharissova, O., Martínez, L., Kharisov, B. (eds) Handbook of Nanomaterials and Nanocomposites for Energy and Environmental Applications. Springer, Cham. https://doi.org/10.1007/978-3-030-11155-7_121-1

Ahmad, A., Zawawi, N. A., Kasim, F. H., Inayat, A., & Khasri, A. (2016). Assessing the gasification performance of biomass: A review on biomass gasification process conditions, optimization and economic evaluation. Renewable and Sustainable Energy Reviews, 53, 1333–1347. https://doi.org/10.1016/j.rser.2015.09.030

Aji, S., Muchammad, M., & Iskandar, N. (2022). Karakterisasi Pelet Biomassa Berbahan Cocopeat Sebagai Bahan Bakar Alternatif. Jurnal Teknik Mesin, 10(4), 575-580. Retrieved from https://ejournal3.undip.ac.id/index.php/jtm/article/view/36246

Alfian, D. G. C., Supriyadi, D., Rinovian, A., Nugraha, A. T., Huda, M., & Silitonga, D. J. (2026). Valorization of palm kernel shell waste into briquettes: Assessing physicochemical properties and combustion characteristics. Green Technologies and Sustainability, 4(2), 100320. https://doi.org/10.1016/j.grets.2025.100320

Al-Maari, M. A., Ahmad, M. A., Mohd Din, A. T., Hassan, H., & Alsobaai, A. M. (2025). Upgrading bio-oil production via catalytic co-pyrolysis of oil palm empty fruit bunch and low-density polyethylene using clinoptilolite catalyst. Journal of Analytical and Applied Pyrolysis, 186, 106937. https://doi.org/10.1016/j.jaap.2024.106937

Alamsyah, Rizal, et al. (2016). Peningkatan Nilai Kalor Pellet Biomassa Cocopeat sebagai Bahan Bakar Terbarukan dengan Aplikasi Torefaksi. Indonesian Journal of Industrial Research, vol. 33, no. 01, 2016, pp. 17-23.

Aldebaran, D., Bhikuning, A., Wijaya, J. D. I., Irhashi, Z. R., & Hafnan, M. (2024). Study the performance and emissions of biodiesel hydrofuel in diesel engine. E3S Web of Conferences, 500, 03008. https://doi.org/10.1051/e3sconf/202450003008

Al-Muraisy, S. A. A., Chuayboon, S., Soares, L. A., Buijnsters, J. G., Ismail, S. bin, Abanades, S., van Lier, J. B., & Lindeboom, R. E. F. (2025). Carbon capture through solar-driven CO₂ gasification of oil palm empty fruit bunch to produce syngas and biochar. Energy, 323, 135805. https://doi.org/10.1016/j.energy.2025.135805

Altawell, N. (Ed.). (2021). Coal. In Rural electrification (pp. 19–38). Academic Press. https://doi.org/10.1016/B978-0-12-822403-8.00002-3

Bemgba, B. N., Anwar, J., Arshad, A., Tuan Amran Tuan A. (2014) Comparative Analysis of the Calorific Fuel Properties of Empty Fruit Bunch Fiber and Briquette, Energy Procedia, 52, 466-473. https://doi.org/10.1016/j.egypro.2014.07.099

Bhikuning, A., Matsumura, E., Senda, J. (2018). A Review: Non-Evaporating Spray Characteristics of Biodiesel Jatropha and Palm Oil and Its Blends. International Review of Mechanical Engineering. 12(4), 364-370. https://doi.org/10.15866/ireme.v12i4.14037

Bhikuning, A., Sugawara, R., Matsumura, E., & Senda, J. (2020). Investigation of spray characteristics from waste cooking oil, bio-hydro fined diesel oil (BHD) and n-tridecane in a constant volume chamber. Case Studies in Thermal Engineering, 21, 100661. Elsevier. https://doi.org/10.1016/j.csite.2020.100661

Bhikuning, A., Matsumura, E., Senda, J. (2023). Performance and emission characteristics of biodiesel waste cooking oil water-emulsions under varying engine load condition. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. 45(4), 11036-11045. https://doi.org/10.1080/15567036.2019.1683646

Booneimsri, P., Kubaha, K., & Chullabodhi, C. 2018. Increasing power generation with enhanced

cogeneration using waste energy in palm oil mills. Energy Science and Engineering. 6(3), 154-173. https://doi.org/10.1002/ese3.196

Borel, L.D.M.S., de Lira, T.S., Ataíde, C.H. et al. (2021). Thermochemical conversion of coconut waste: material characterization and identification of pyrolysis products. J Therm Anal Calorim, 143, 637–646. https://doi.org/10.1007/s10973-020-09281-y

Chiew, Y.L.,Shimada, S. (2013). Current state and environmental impact assessment for utilizing oil palm empty fruit bunches for fuel, fiber and fertilizer e A case study of Malaysia. Biomass Bioenergy, 51, 109–124. https://doi.org/10.1016/j.biombioe.2013.01.012

Chuayboon, S., & Abanades, S. (2023). Carbon-neutral synfuel production via continuous solar H₂O and CO₂ gasification of oil palm empty fruit bunch. Energy, 281, 128212. https://doi.org/10.1016/j.energy.2023.128212

Detchusananard, T., Wuttipisan, N., Limleamthong, P., Prasertcharoensuk, P., Maréchal, F., & Arpornwichanop, A. (2022). Pyrolysis and gasification integrated process of empty fruit bunch for multi-biofuels production: Technical and economic analyses. Energy Conversion and Management, 258, 115465. https://doi.org/10.1016/j.enconman.2022.115465

Gute, B., Etefa, H., Kumar, V., Raba, G., Efa, T., & Dejene, F. (2022). Effect of wood moisture content on the performance of wood burning cook stoves. International Journal of Sustainable Engineering, 16, 1–10. https://doi.org/10.1080/19397038.2022.2159568

Handaya, H., Susanto, H., Indrawan, D., & Marimin, M. (2022). Supply and Demand Characteristics of Palm Kernel Shell as a Renewable Energy Source for Industries. International Journal of Renewable Energy Development, 11(2), 481-490. https://doi.org/10.14710/ijred.2022.41971

Harahap, M., Haeruman, A., Mokheimer, E. (2023). Optimal Composition of Palm Oil Biomass to Minimize Biomass Power Plants’ Greenhouse Gases Emission. ASME Open Journal of Engineering, 2: 021034. https://doi.org/10.1115/1.4062627

Hariana, Prabowo, E. H., Kuswa, F. M., Darmawan, A., & Aziz, M. (2023). A comprehensive evaluation of cofiring biomass with coal and slagging-fouling tendency in pulverized coal-fired boilers. Ain Shams Engineering Journal, 14(7), 102001. https://doi.org/10.1016/j.asej.2022.102001

Harsono, S.S., Grundman, P., Lau, L.H., Hansen, A., Salleh, M.A.M., Meyer-Aurich, A., Idris, A., Ghazi, T.I.M. (2013). Energy balances, greenhouse gas emissions and economics of biochar production from palm oil empty fruit bunches. Resour. Conserv. Recycl, 77, 108–115. https://doi.org/10.1016/j.resconrec.2013.04.005

Ismail, W., Abdul Rasid, R. (2017). Empty fruit bunch (EFB) gasification in an entrained flow gasification system. Chemical Engineering Research Bulletin. 19. 43. https://doi.org/10.3329/cerb.v19i0.33775

Junga, R., Pospolita, J., & Niemiec, P. (2020). Combustion and grindability characteristics of palm kernel shells torrefied in a pilot-scale installation. Renewable Energy, 147, 1239–1250. https://doi.org/10.1016/j.renene.2019.09.060.

Koppejan, J., & van Loo, S. (Eds.). (2008). The handbook of biomass combustion and co-firing (1st ed.). Routledge. https://doi.org/10.4324/9781849773041

Krishnapillai, M., Young-Uhk, S., Friday, J., Haase, D. (2020). Locally Produced Cocopeat Growing Media for Container Plant Production. Tree Planters' Notes. 63. 29-38.

Liew, Min., & Xiao, Ming. (2018). Characterization of physical and mineralogical properties of anthracite and bituminous coal tailings. International Journal of Coal Preparation and Utilization. 41. 1-16. https://doi.org/10.1080/19392699.2018.1503175

Lin, Y.-L., & Zheng, N.-Y. (2021). Torrefaction of fruit waste seed and shells for biofuel production with reduced CO2 emission. Energy, 225, 120226. https://doi.org/10.1016/j.energy.2021.120226.

Maulana, K., Lukman, L., Uddin, F. B., Sanjaya, A. S. (2016). Analisa Efisiensi Water Tube Boiler Berbahan Bakar Fibre dan Cangkang di Palm Oil Mill Kapasitas 60 Ton TBS/Jam dengan Menggunakan Chemicalogic Steamtab Companion Version 2.0. Chemica: Jurnal Teknik Kimia. 3(2): 46-54. https://doi.org/10.26555/CHEMICA.V3I2.6687

Mohd Fuad, M. A. H., Hasan, M. F., Chong, W. W. F., Ani, F. N., & Ngadiman, N. H. A. (2024). A novel oxidative microwave torrefaction approach for producing empty fruit bunch-starch binder briquettes as a potential biomass-based energy. Renewable Energy, 228, 120592. https://doi.org/10.1016/j.renene.2024.120592.

Noushabadi, A. S., Dashti, A., Ahmadijokani, F., Hu, J., & Mohammadi, A. H. (2021). Estimation of higher heating values (HHVs) of biomass fuels based on ultimate analysis using machine learning techniques and improved equation. Renewable Energy, 179, 550–562. https://doi.org/10.1016/j.renene.2021.07.003

Nurdin, H., Waskito, W., Fadilah, F., Sugiarto, T., Kurniawan, A., Fernanda, Y., Anarta, R., & Aulia, F. D. Z. (2025). Calorific value of palm kernel shell charcoal (PKSC) briquette as solid fuel. Journal of Applied Engineering and Technological Science, 6(2), 780–789. https://doi.org/10.37385/jaets.v6i2.6336

Padavala, S. S. A. B., Dey, S., Veerendra, G. T. N., & Manoj, A. V. P. (2024). Experimental study on concrete by partial replacement of cement with fly ash and coarse aggregates with palm kernel shells (PKS) and with addition of hybrid fibers. Chemistry of Inorganic Materials, 2, 100033. https://doi.org/10.1016/j.cinorg.2024.100033.

Pawlak-Kruczek, H., Arora, A., Mościcki, K., Krochmalny, K., Sharma, S., & Niedzwiecki, Ł. (2020). A transition of a domestic boiler from coal to biomass: Emissions from combustion of raw and torrefied palm kernel shells (PKS). Fuel, 263, 116718. https://doi.org/10.1016/j.fuel.2019.116718.

Racero-Galaraga, D., Rhenals-Julio, J. D., Sofan-German, S., Mendoza, J. M., & Bula-Silvera, A. (2024). Proximate analysis in biomass: Standards, applications and key characteristics. Results in Chemistry, 12, 101886. https://doi.org/10.1016/j.rechem.2024.101886

Rey, P. D., Mujiyono, Nurhadiyanto, D., Perdana, H. K., & Rusly, E. (2025). Development of generating heat energy from empty oil palm bunch powder in cylinder bio-stove with pyrolysis and gasification technology. Results in Engineering, 26, 104741. https://doi.org/10.1016/j.rineng.2025.10474

Roeder, G. J., Haimerl, J., Chen, Y., Gaderer, M., Fendt, S., & Spliethoff, H. (2025). Measurements of NOx emissions from biomass combustion in small to large-scale power plants. Fuel, 397, 135801. https://doi.org/10.1016/j.fuel.2025.135801

Rusdianasari., Arissetyadhi, I., Kalsum, L., Bow, Y., Syarif, A., Arifin, F. (2023). Characterization of Empty Fruit Bunch of Palm Oil as Co-firing Biomass Feedstock. AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment). 7. 74-78. https://doi.org/10.29165/ajarcde.v7i1.237

Saidur, R., Ahamed, J. U., & Masjuki, H. H. (2010). Energy, exergy and economic analysis of industrial boilers. Energy Policy, 38(5), 2188–2197. https://doi.org/10.1016/j.enpol.2009.11.087

Sambeth, S. K., Chang, S. S., Abdul Samad, N. A. F., & Saleh, S. (2022). Pelletization of torrefied palm kernel shell by using different binding agents. Materials Today: Proceedings, 57(Part 3), 1116–1122. https://doi.org/10.1016/j.matpr.2021.09.490.

Setiawan, A. A. R., Munawar, S. S., Ishizaki, R., Putra, A. S., Ariesca, R., Sidiq, A. N., Siregar, K., Murata, K., Wiloso, E. I., Ahamed, T., & Noguchi, R. (2024). Optimizing biomass supply for cofiring at power plants to minimize environmental impact: A case of oil palm empty fruit bunches in West Java. Fuel, 367, 131359. https://doi.org/10.1016/j.fuel.2024.131359

Setiawan, S. A., Bhikuning, A., Potto, H., Setiawan, B., & Cionita, T. (2025). Composition of empty fruit bunch, biogas, and mesocarp as renewable energy to replace palm kernel shell with the optimum gas emission (SO₂, NO₂ and CO₂) in industry. Indonesian Journal of Urban and Environmental Technology, 8(1), 82–98. https://doi.org/10.25105/urbanenvirotech.v8i1.21702.

Silva, A. A. R., Brito, G. F. da S., Araruna, T., Gambetta, R., & Machado, F. (2026). Thermochemical conversion of oil palm empty fruit bunch into fuel gas in a fluidized bed gasifier. Bioresource Technology, 440, 133404. https://doi.org/10.1016/j.biortech.2025.133404.

Sulaiman, F., & Abdullah, N. (2011). Optimum conditions for maximizing pyrolysis liquids of oil palm empty fruit bunches. Energy, 36(5), 2352–2359. https://doi.org/10.1016/j.energy.2011.01.045.

Uche, P, O., John, I., Itabor, N., Akhator, P., Ojariafe, E.G. (2015). Calorific Value of Palm Oil Residues for Energy Utilisation. International Journal of Engineering Innovation & Research, 4(4), 664-667.

Unsomsri, N., Unsomsri, N., Kaewluan, S., Tawkaew, S., & Wiriyasart, S. (2026). Enhancing bio-oil yield and quality from palm kernel shells via co-pyrolysis with palm fresh fruit in a double auger reactor. Journal of Analytical and Applied Pyrolysis, 195, 107632. https://doi.org/10.1016/j.jaap.2026.107632.

Varol, M., Atimtay, A. T., Bay, B., & Olgun, H. (2010). Investigation of co-combustion characteristics of low-quality lignite coals and biomass with thermogravimetric analysis. Thermochimica Acta, 510(1–2), 195–201. https://doi.org/10.1016/j.tca.2010.07.014.

Vega, L. Y., López, L., Valdés, C. F., & Chejne, F. (2019). Assessment of energy potential of

wood industry wastes through thermochemical conversions. Waste Management, 87,

108–118. https://doi.org/10.1016/j.wasman.2019.01.048.

Vieira, F., Santana, H. E. P., Jesus, M., Santos, J., Pires, P., Vaz-Velho, M., Silva, D. P., & Ruzene, D. S. (2024). Coconut Waste: Discovering Sustainable Approaches to Advance a Circular Economy. Sustainability, 16(7), 3066. https://doi.org/10.3390/su16073066.

Viswanathan, B. (2017). Coal. In B. Viswanathan (Ed.), Energy sources (pp. 81–111). Elsevier. https://doi.org/10.1016/B978-0-444-56353-8.00004-6

Windiastuti, E., Suprihatin., Bindar., Hasanudin, U. (2022). Identification of potential application of oil palm empty fruit bunches (EFB): a review. IOP Conference Series: Earth and Environmental Science. 1063. 012024. https://doi.org/10.1088/1755-1315/1063/1/012024

Xu, C., Stanislav, B., Luo, Z., Wang, J., Li, J., Jing, H., Zhuang, Y., Chen, D., & Qian, Y. (2026). A study on the correlation between moisture content and the stability and engine performance of methanol-diesel mixture fuels. Journal of the Energy Institute, 126, 102508. https://doi.org/10.1016/j.joei.2026.102508

Yek, P. N. Y., Cheng, Y. W., Liew, R. K., Mahari, W. A. W., Ong, H. C., Chen, W.-H., Peng, W., Park, Y.-K., Sonne, C., Kong, S. H., Tabatabaei, M., Aghbashlo, M., & Lam, S. S. (2021). Progress in the torrefaction technology for upgrading oil palm wastes to energy-dense biochar: A review. Renewable and Sustainable Energy Reviews, 151, 111645. https://doi.org/10.1016/j.rser.2021.111645.

Yin, C.-Y. (2011). Prediction of higher heating values of biomass from proximate and ultimate analyses. Fuel, 90(3), 1128–1132. https://doi.org/10.1016/j.fuel.2010.11.031

Yulistiani, F., Aqsha, & Bindar, Y. (2026). Integrating dry leaf combustion with palm empty fruit bunch pyrolysis for biochar production and energy recovery: An Aspen Plus model. Biomass and Bioenergy, 204, 108383. https://doi.org/10.1016/j.biombioe.2025.108383.

Zhao, C., Lu, X., & Zhang, Y. (2025). Prediction of the higher heating value of biomass based on multiple classification methods. Biomass Conversion and Biorefinery, 15, 5183–5191. https://doi.org/10.1007/s13399-024-05305-x.