PRODUCTION OF TORREFIED BIOMASS PELLETS FROM WOODY AND AGRICULTURAL RESIDUES (TIChE2021)

Authors

  • Weerawut Chaiwat
  • Pimonpan Inthapat Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, Thailand
  • Kitpati Department of Civil and Environmental Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, Thailand
  • Pensiri Prachakittikul Division of Environmental Engineering and Disaster Management, Mahidol University, Kanchanaburi Campus, Kanchanaburi 71150, Thailand
  • Eiad College of Nanotechnology, King Mongkut’s Institute of Technology Ladkrabang, Bangkok 10520, Thailand.
  • Supachai Jadsadajerm The Joint Graduate School of Energy and Environment, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
  • Nattawut Setkit The Joint Graduate School of Energy and Environment, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand
  • Nakorn Worasuwannarak The Joint Graduate School of Energy and Environment, King Mongkut’s University of Technology Thonburi, Bangkok 10140, Thailand

DOI:

https://doi.org/10.55766/sujst-2023-03-e0912

Keywords:

Biomass, pelletization, torrefaction, torrefied pellets, fuel properties

Abstract

Two different combined process sequences of biomass pretreatment between pelletization after torrefaction (PAT) and pelletization before torrefaction (PBT) were comparatively investigated to produce torrefied biomass pellets (TBP) from woody biomasses, e.g. Leucaena (LC) and rubberwood (RW), and agricultural residues, e.g. rice straw (RS) and sugarcane leaves (SCL). In this study, each sample was thermally treated at 260-300°C for 5 min during torrefaction process. It was found that both woody biomasses and agricultural residues had mass yield lower than 63wt%, while the bulk density of TBPs were improved higher than 400kg/m3. For equilibrium moisture content (EMC) analysis, TBPs via PBT method had lower EMC than raw pellet after being kept at 30°C for 12 days. For the thermochemical properties, the TBPs had higher FC, %C, and HHVs than raw pellets in all biomasses and increased with torrefaction temperature. When comparing the TBPs between PAT and PBT torrefied pellets, the HHVs of PBT torrefied pellets at 300°C were achieved highest at 27 MJ/kg for SCL sample, leading to lower H/C and O/C ratio closely to that of lignite. In addition, the combustion performance index (Sn) of PAT and PBT torrefied pellets was lower than raw pellets, showing a similar property as coal and lignite. Briefly, this study suggests using PBT pretreatment process to produce high quality solid fuel, particularly for agricultural residues such as SCL for a potential substitute of currently used coal.

References

Acharjee, T.C., Coronella, C.J., and Vasquez, V.R. (2011). Effect of thermal pretreatment on equilibrium moisture content of lignocellulosic biomass. Bioresource Technology, 102(7):4,849-4,854. https://doi.org/10.1016/j.biortech.2011. 01.018.

Brachi, P., Chirone, R., Miccio, M., and Ruoppolo, G. (2018). Fluidized bed torrefaction of commercial wood pellets: process performance and solid product quality. Energy & Fuels, 32(9):9,459-9,469. https://doi.org/10.1021/acs. energyfuels.8b01519.

Brachi, P., Chirone, R., Miccio, M., and Ruoppolo, G. (2019). Fluidized bed torrefaction of biomass pellets: a comparison between oxidative and inert atmosphere. Powder Technology, 357:97-107. https://doi.org/10.1016/ j.powtec.2019.08.058.

Bridgeman, T.G., Jones, J.M., Shield, I., and Williams, P.T. (2008). Torrefaction of reed canary grass, wheat straw and willow to enhance solid fuel qualities and combustion properties. Fuel, 87(6):844-856. https://doi.org/10.1016/ j.fuel.2007.05.041.

Chih, Y., Chen, W., Ong, H.C., and Show, P.L. (2019). Product characteristics of torrefied wood sawdust in normal and Vacuum environments. Energies, 12(20):3,844. https://doi.org/10.3390/en12203844.

García Nieto, P., García-Gonzalo, E., Sánchez Lasheras, F., Paredes-Sánchez, J., and Riesgo Fernández, P. (2019). Forecast of the higher heating value in biomass torrefaction by means of machine learning techniques. Journal of Computational and Applied Mathematics, 357:284-301. https://doi.org/10.1016/j.cam.2019.03.009.

Ghiasi, B., Kumar, L., Furubayashi, T., Lim, C. J., Bi, X., Kim, C. S., and Sokhansanj, S. (2014). Densified biocoal from woodchips: is it better to do torrefaction before or after densification? Applied Energy, 134:133-142. https://doi.org/10.1016/j.apenergy.2014.07.076.

Gilvari, H., De Jong, W., and Schott, D.L. (2019). Quality parameters relevant for densification of biomaterials: Measuring methods and affecting factors - a review. Biomass and Bioenergy, 120:117-134. https://doi.org/ 10.1016/j.biombioe.2018.11.013.

GREET Life Cycle Model. (2012). GREET Transportation Fuel Cycle Analysis Model, GREET 1.8b, Argonne Natl. Lab. Copyr. 2012 UChicago Argonne, LLC. September (2008). http://greet.es.anl.gov/.

Hu, Q., Shao, J., Yang, H., Yao, D., Wang, X., and Chen, H. (2015). Effects of binders on the properties of bio-char pellets. Applied Energy, 157:508-516. https://doi.org/ 10.1016/j.apenergy.2015.05.019.

Inthapat, P. (2016). Effect of chemical composition of agricultural wastes on fuel properties of torrefied biomass. Agricultural Science Program, Mahidol University, Kanchanaburi Campus.

ISO/TS 17225-8:2016 (E), Solid biofuels-Fuel specifications and classes - Part 8: Graded thermally treated and densified biomass fuels for commercial and industrial use.

Kaliyan, N. and Morey, RV. (2010). Natural binders and solid bridge type binding mechanisms in briquettes and pellets made from corn stover and switchgrass. Bioresource Technol, 101:1,082-1,090. https://doi.org/10.1016/ j.biortech.2009.08.064.

Li, H., Liu, X., Legros, R., Bi, X. T., Lim, C.J., and Sokhansanj, S. (2012). Pelletization of torrefied sawdust and properties of torrefied pellets. Applied Energy, 93, 680-685. https://doi.org/10.1016/j.apenergy.2012.01.002

Manouchehrinejad, M., and Mani, S. (2018). Torrefaction after pelletization (TAP): analysis of torrefied pellet quality and co-products. Biomass and Bioenergy, 118:93-104. https://doi.org/10.1016/j.biombioe.2018.08.015.

Mian, I., Li, X., Dacres, O.D., Wang, J., Wei, B., Jian, Y., Zhong, M., Liu, J., Ma, F., and Rahman, N. (2020). Combustion kinetics and mechanism of biomass pellet. Energy, 205:117909. https://doi.org/10.1016/j.energy.2020.117909.

Nie, Q. H., Sun, S. Z., and Li, Z. Q. (2001). Thermogravimetric analysis on the combustion characteristics of brown coal blends. Combustion Science Technology. 7(1), 71-76.

Obernberger, I. and Thek, G. (2010). The pellet handbook: The production and thermal utilization of biomass pellets. London: Earthscan.

Peng, J.H., Bi, H.T., Lim, C.J., and Sokhansanj, S. (2013a). Study on density, hardness, and moisture uptake of torrefied wood pellets. Energy & Fuels, 27(2):967-974. https://doi.org/10.1021/ef301928q

Peng, J., Bi, X., Sokhansanj, S., and Lim, C. (2013b). Torrefaction and densification of different species of softwood residues. Fuel, 111:411-421. https://doi.org/10.1016/j.fuel.2013. 04.048.

Ríos-Badrán, I.M., Luzardo-Ocampo, I., García-Trejo, J.F., Santos-Cruz, J., and Gutiérrez-Antonio, C. (2020). Production and characterization of fuel pellets from rice husk and wheat straw. Renewable Energy, 145:500-507. https://doi.org/10.1016/j.renene.2019.06.048.

Ro, K.S., Libra, J.A., Bae, S., Berge, N.D., Flora, J.R.V., and Pecenka, R. (2019). Combustion behavior of animal-manure-based hydrochar and pyrochar. ACS Sustainable Chemistry & Engineering, 7(1):470-478. https://doi.org/10.1021/acssuschemeng.8b03926.

Rudolfsson, M., Borén, E., Pommer, L., Nordin, A., and Lestander, T. A. (2017). Combined effects of torrefaction and pelletization parameters on the quality of pellets produced from torrefied biomass. Applied Energy, 191:414-424. https://doi.org/10.1016/j.apenergy.2017.01.035.

Said, N., Daiem, M.M.A., García-Maraver, A., and Zamorano, M. (2015). Influence of densification parameters on quality properties of rice straw pellets. Fuel Processing Technology, 138:56-64. https://doi.org/10.1016/j.fuproc. 2015.05.011.

Sankaran, R., Show, P.L., Nagarajan, D., and Chang, J. (2018). Exploitation and biorefinery of microalgae. Waste Biorefinery, p. 571-601. https://doi.org/10.1016/B978-0-444-63992-9.00019-7.

Sarkar, M., Kumar, A., Tumuluru, J.S., Patil, K.N., and Bellmer, D.D. (2014). Gasification performance of switchgrass pretreated with torrefaction and densification. Applied Energy, 127, 194-201. https://doi.org/10.1016/j.apenergy. 2014.04.027.

Serrano, C., Monedero, E., Lapuerta, M., and 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. https://doi.org/ 10.1016/j.fuproc.2010.11.031

Setkit, N., Li, X., Yao, H., and Worasuwannarak, N. (2021). Torrefaction behavior of hot-pressed pellets prepared from leucaena wood. Bioresource Technology, 321:124502. https://doi.org/10.1016/j.biortech.2020.124502.

Sezer, S., Kartal, F., and Özveren, U. (2021). The investigation of co-combustion process for synergistic effects using thermogravimetric and kinetic analysis with combustion index. Thermal Science and Engineering Progress, 23, 100889. https://doi.org/10.1016/j.tsep.2021.100889.

Sonobe, T., Worasuwannarak, N., and Pipatmanomai, S. (2008). Synergies in co-pyrolysis of Thai lignite and corncob. Fuel Processing Technology, 89(12):1,371-1378. https://doi.org/ 10.1016/j.fuproc.2008.06.006.

Soponpongpipat, N., Comsawang, P., and Nanetoe, S. (2019). Quality properties and pyrolysis characteristics of cassava rhizome pellets produced by alternating between pelletizing and torrefaction. Processes, 7(12):930. https://doi.org/10.3390/pr7120930.

Stelte, W., Clemons, C., Holm, J. K., Sanadi, A.R., Ahrenfeldt, J., Shang, L., and Henriksen, U.B. (2011). Pelletizing properties of torrefied spruce. Biomass and Bioenergy, 35(11):4690-4698. https://doi.org/10.1016/j.biombioe. 2011.09.025.

Strandberg, M., Olofsson, I., Pommer, L., Wiklund-Lindström, S., Åberg, K., and Nordin, A. (2015). Effects of temperature and residence time on continuous torrefaction of spruce wood. Fuel Processing Technology, 134:387-398. https://doi.org/10.1016/j.fuproc.2015.02.021.

Sukarta, I.N., Sastrawidana, I.D., and Ayuni, N.P. (2018). Proximate analysis and calorific value of pellets in biosolid combined with wood waste biomass. Journal of Ecological Engineering, 19(3):185-190. https://doi.org/ 10.12911/22998993/86153.

Valdés, C. F., Marrugo, G., Chejne, F., Cogollo, K., and Vallejos, D. (2018). Pelletization of agroindustrial biomasses from the tropics as an energy resource: implications of pellet quality. Energy & Fuels, 32(11):11,489-11,501. https://doi.org/10.1021/acs.energyfuels.8b01673.

Wang, L., Riva, L., Skreiberg, Ø., Khalil, R., Bartocci, P., Yang, Q., Yang, H., Wang, X., Chen, D., Rudolfsson, M., and Nielsen, H.K. (2020). Effect of torrefaction on properties of pellets produced from woody biomass. Energy & Fuels, 34(12):15,343-15,354. https://doi.org/10.1021/acs.energyfuels. 0c02671.

Wannapeera, J. and Worasuwannarak, N. (2012). Upgrading of woody biomass by torrefaction under pressure. Journal of Analytical and Applied Pyrolysis, 96:173-180. https://doi.org/10.1016/j.jaap.2012.04.002.

Wattananoi, W. (2011). Upgrading of biomass by torrefaction and densification process. In: 2011 IEEE Conference on Clean Energy and Technology (CET), June 27-29, 2011, Kuala Lumpur, Malaysia, p. 209-212. https://doi.org/ 10.1109/CET.2011.6041465.

Yoshida, T., Kuroda, K., Kamikawa, D., Kubojima, Y., Nomura, T., Watada, H., Sano, T., and Ohara, S. (2021). Water resistance of torrefied wood pellets prepared by different methods. Energies, 14(6):1,618. https://doi.org/10.3390/ en14061618.

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Published

2023-09-29

How to Cite

Chaiwat, W., Inthapat, P., Boontanon, S., Prachakittikul, P., ua, A., Jadsadajerm, S., Setkit, N., & Worasuwannarak, N. (2023). PRODUCTION OF TORREFIED BIOMASS PELLETS FROM WOODY AND AGRICULTURAL RESIDUES (TIChE2021). Suranaree Journal of Science and Technology, 30(3), 010232(1–13). https://doi.org/10.55766/sujst-2023-03-e0912

Issue

Vol. 30 No. 3 (2023): May - June

Section

Research Article

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