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The Moisture Content of Sawdust Fuel Pellets at Different Drying Periods

*Junaidi Junaidi  -  Universitas Diponegoro, Indonesia
Yustina Metanoia Pusparizkita  -  Universitas Diponegoro, Indonesia
Attaya Juliatiko  -  Universitas Diponegoro, Indonesia
Ngakan Ade Rahmadiputra  -  Universitas Diponegoro, Indonesia
Sudarno Sudarno  -  Universitas Diponegoro, Indonesia

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The development of pellet fuel from biomass has a great opportunity because Indonesia is an agricultural country. Utilizing this biomass can increase economic value, minimize waste generated, and reduce emissions released into the environment. In this study, the pellet fuel was made from sawdust obtained from the Semarang wood sawmill industry. The raw materials are mixed with adhesive, water and then formed using a pellet machine. The high water content in the pellets that have just come out of the pelletizing (27%) process requires drying treatment. The aim of this work was to find out the effect of drying time on the moisture content of the pellet fuel to meet existing standards. The variation of drying time used is 10, 15 and 20 minutes at 100° C. The results showed that the moisture content of the pellet was 22% (10 min), 19% (15 min) and 17% (20 min). The water content in the pellets will decrease 4% on average along with the drying time. However, the water content was still slightly higher than the specified standard (8-13%). Based on model predictions, the necessary drying time is 30-35 min. Ash content obtained from this study is 0.7%. The drying time can affect the density of the resulting pellet product.  Accordingly, further studies are needed to determine the drying optimum temperature.

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Keywords: Pellet; biomass; fuel; moisture content; drying
Funding: Faculty of Engineering Universitas Diponegoto under contract 356/UN7.5.3.2/HK/2022

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Section: Original Research Article
Language : EN
  1. Anwar, A.H.S., Saimon, N.N., Ali, M.W., Kamarizan, K., Jusoh, Y.M.M., Mazura, J., Zakaria, Z.Y. 2018. Effect of particle size on the explosive characteristics of grain (wheat) starch in a closed cylindrical vessel. Chemical engineering transactions 63, 571–576
  2. Bilal, M., Asgher, M., Iqbal, H.M.N., Hu, H., Zhang, X. 2017. Biotransformation of lignocellulosic materials into value-added products—A review. International Journal of Biological Macromolecules 98, 447–458
  3. Carroll, J.P., Finnan, J. 2012. Physical and chemical properties of pellets from energy crops and cereal straws. Biosystems Engineering 112, 151–159
  4. Chandrasekaran, S.R., Hopke, P.K., Rector, L., Allen, G., Lin, L. 2012. Chemical composition of wood chips and wood pellets. Energy Fuels 26, 4932–4937
  5. Chau, J., Sowlati, T., Sokhansanj, S., Preto, F., Melin, S., Bi, X. 2009. Economic sensitivity of wood biomass utilization for greenhouse heating application. Applied Energy 86, 616–621
  6. Demirbas, A. 2009. Political, economic and environmental impacts of biofuels: A review. Applied Energy 86, S108–S117
  7. Erlich, C., Fransson, T.H. 2011. Downdraft gasification of pellets made of wood, palm-oil residues respective bagasse: Experimental study. Applied Energy 88, 899–908
  8. García, R., Pizarro, C., Lavín, A.G., Bueno, J.L. 2017. Biomass sources for thermal conversion. Techno-economical overview. Fuel 195, 182–189
  9. Gil, M.V., Oulego, P., Casal, M.D., Pevida, C., Pis, J.J., Rubiera, F. 2010. Mechanical durability and combustion characteristics of pellets from biomass blends. Bioresource Technology 101, 8859–8867
  10. Harun, N.Y., Han, T.J., Vijayakumar, T., Saeed, A., Afzal, M.T. 2019. Ash deposition characteristics of industrial biomass waste and agricultural residues. Materials Today: Proceedings 19, 1712–1721
  11. Ishii, K., Furuichi, T. 2014. Influence of moisture content, particle size and forming temperature on productivity and quality of rice straw pellets. Waste Management 34, 2621–2626
  12. Kusumaningrum, W.B., Munawar, S.S. 2014. Prospect of bio-pellet as an alternative energy to substitute solid fuel based. Energy Procedia 47, 303–309
  13. Li, W., Guo, W., Bu, W., Jiang, Y., Wang, Y., Yang, W., Yin, X. 2020. A non-liner constitutive model of three typical biomass material pelletization for capturing particle mechanical behaviors during the elasto-visco-plastic deformation stage. Renewable Energy 149, 1370–1385
  14. Liu, C., Wyman, C.E. 2005. Partial flow of compressed-hot water through corn stover to enhance hemicellulose sugar recovery and enzymatic digestibility of cellulose. Bioresource Technology 96, 1978–1985
  15. Liu, Z., Quek, A., Balasubramanian, R. 2014. Preparation and characterization of fuel pellets from woody biomass, agro-residues and their corresponding hydrochars. Applied Energy 113, 1315–1322
  16. Muhammad, Y., Muhammad, Z., Taufiq, J., Nur, Y., Riwen, S., Umaidella, A. 2021. Production of bio-pellet briquettes from coconut shell waste as alternative energy for household scale. In: Proceedings of the 4th Forum in Research, Science, and Technology (FIRST-T1-T2-2020). Atlantis Press, pp. 57–61
  17. Nielsen, N.P.K., Holm, J.K., Felby, C. 2009. Effect of fiber orientation on compression and frictional properties of sawdust particles in fuel pellet production. Energy Fuels 23, 3211–3216
  18. Peng, J., Bi, X.T., Lim, C.J., Peng, H., Kim, C.S., Jia, D., Zuo, H. 2015. Sawdust as an effective binder for making torrefied pellets. Applied Energy 157, 491–498
  19. Poddar, S., Kamruzzaman, M., Sujan, S.M.A., Hossain, M., Jamal, M.S., Gafur, M.A., Khanam, M. 2014. Effect of compression pressure on lignocellulosic biomass pellet to improve fuel properties: Higher heating value. Fuel 131, 43–48
  20. Proskurina, S., Junginger, M., Heinimö, J., Tekinel, B., Vakkilainen, E. 2019. Global biomass trade for energy— Part 2: Production and trade streams of wood pellets, liquid biofuels, charcoal, industrial roundwood and emerging energy biomass. Biofuels, Bioproducts and Biorefining 13, 371–387
  21. Pua, F.-L., Subari, M.S., Ean, L.-W., Krishnan, S.G. 2020. Characterization of biomass fuel pellets made from Malaysia tea waste and oil palm empty fruit bunch. Materials Today: Proceedings 31, 187–190
  22. Pusparizkita, Y.M., Hidayatullah, A.F., Anwar, N.F., Junaidi, Sudarno. 2022. The influence of drying time on pellet fuel moisture content. IOP Conference Series: Earth and Environmental Science 1098, 012067
  23. Selvarajoo, A., Lee, C.W., Oochit, D., Almashjary, K.H.O. 2021. Bio-pellets from empty fruit bunch and durian rinds with cornstarch adhesive for potential renewable energy. Materials Science for Energy Technologies 4, 242–248
  24. Senneca, O. 2007. Kinetics of pyrolysis, combustion and gasification of three biomass fuels. Fuel Processing Technology 88, 87–97
  25. Serrano, C., Monedero, E., Lapuerta, M., Portero, H. 2011. Effect of moisture content, particle size and pine addition on quality parameters of barley straw pellets. Fuel Processing Technology 92, 699–706
  26. Sgarbossa, A., Costa, C., Menesatti, P., Antonucci, F., Pallottino, F., Zanetti, M., Grigolato, S., Cavalli, R. 2014. Colorimetric patterns of wood pellets and their relations with quality and energy parameters. Fuel 137, 70–76
  27. Shen, D.K., Gu, S., Luo, K.H., Bridgwater, A.V., Fang, M.X. 2009. Kinetic study on thermal decomposition of woods in oxidative environment. Fuel 88, 1024–1030
  28. Sohni, S., Norulaini, N.A.N., Hashim, R., Khan, S.B., Fadhullah, W., Mohd Omar, A.K. 2018. Physicochemical characterization of Malaysian crop and agro-industrial biomass residues as renewable energy resources. Industrial Crops and Products 111, 642–650
  29. Song, H., Starfelt, F., Daianova, L., Yan, J. 2012. Influence of drying process on the biomass-based polygeneration system of bioethanol, power and heat. Applied Energy 90, 32–37
  30. Tamunaidu, P., Saka, S. 2011. Chemical characterization of various parts of nipa palm (Nypa fruticans). Industrial Crops and Products 34, 1423–1428
  31. Tauro, R., García, C.A., Skutsch, M., Masera, O. 2018. The potential for sustainable biomass pellets in Mexico: An analysis of energy potential, logistic costs and market demand. Renewable and Sustainable Energy Reviews 82, 380–389
  32. Verma, V.K., Bram, S., Delattin, F., Laha, P., Vandendael, I., Hubin, A., De Ruyck, J. 2012. Agro-pellets for domestic heating boilers: Standard laboratory and real life performance. Applied Energy 90, 17–23
  33. Verma, V.K., Bram, S., Vandendael, I., Laha, P., Hubin, A., De Ruyck, J. 2011. Residential pellet boilers in Belgium: standard laboratory and real life performance with respect to European standard and quality labels. Applied Energy 88, 2628–2634
  34. Wahyono, Y., Hadiyanto, H., Zuli Pratiwi, W., Dianratri, I. 2021. “Biopellet” as one of future promising biomassbased renewable energy: a review. E3S Web Conf. 317

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