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Investigation of agro-byproduct pellet properties and improvement in pellet quality through mixing

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  • Park, Sunyong
  • Kim, Seok Jun
  • Oh, Kwang Cheol
  • Cho, Lahoon
  • Kim, Min Jun
  • Jeong, In Seon
  • Lee, Chung Geon
  • Kim, DaeHyun

Abstract

In this study, pellets made from agricultural byproducts were evaluated and the possibility of their conversion into fuel was investigated. Conventional wood pellets were used as the control, and pepper, perilla, rice chaff, and spent coffee ground were molded into pellets and evaluated based on various parameters such as size, bulk density, and calorific value following the standard for “non-wood pellets” and “resource conservation and recycling promotion laws.” The perilla or rice chaff pellets were determined as bio-solid refused fuel (Bio-SRF) grade because of low durability. Agricultural byproduct (pepper, perilla, and rice chaff) pellets were mixed with spent coffee ground to improve their properties. They were molded into pellets and evaluated based on the above standards. Pepper + coffee (PCP) pellets had lower chlorine content than pepper pellets but copper content was higher. Rice chaff + coffee (CCP) pellets had slightly higher durability, but the bulk density was decreased. Therefore, CCP was determined as Bio-SRF. Perilla + coffee pellets (PRCP) were determined as A grade owing to higher durability. Thus, it was confirmed that agricultural byproducts could be used as viable energy sources by mixing them.

Suggested Citation

  • Park, Sunyong & Kim, Seok Jun & Oh, Kwang Cheol & Cho, Lahoon & Kim, Min Jun & Jeong, In Seon & Lee, Chung Geon & Kim, DaeHyun, 2020. "Investigation of agro-byproduct pellet properties and improvement in pellet quality through mixing," Energy, Elsevier, vol. 190(C).
    • Handle: RePEc:eee:energy:v:190:y:2020:i:c:s0360544219320754
    DOI: 10.1016/j.energy.2019.116380
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    References listed on IDEAS

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    1. Chew, J.J. & Doshi, V., 2011. "Recent advances in biomass pretreatment – Torrefaction fundamentals and technology," Renewable and Sustainable Energy Reviews, Elsevier, vol. 15(8), pages 4212-4222.
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    1. Sunyong Park & Hui-Rim Jeong & Yun-A Shin & Seok-Jun Kim & Young-Min Ju & Kwang-Cheol Oh & La-Hoon Cho & DaeHyun Kim, 2021. "Performance Optimisation of Fuel Pellets Comprising Pepper Stem and Coffee Grounds through Mixing Ratios and Torrefaction," Energies, MDPI, vol. 14(15), pages 1-16, August.
    2. Duk-Gam Woo & Sang Hyeon Kim & Tae Han Kim, 2021. "Solid Fuel Characteristics of Pellets Comprising Spent Coffee Grounds and Wood Powder," Energies, MDPI, vol. 14(2), pages 1-17, January.
    3. Lacrimioara Senila & Ioan Tenu & Petru Carlescu & Oana Raluca Corduneanu & Emanuel Petru Dumitrachi & Eniko Kovacs & Daniela Alexandra Scurtu & Oana Cadar & Anca Becze & Marin Senila & Marius Roman & , 2020. "Sustainable Biomass Pellets Production Using Vineyard Wastes," Agriculture, MDPI, vol. 10(11), pages 1-21, October.
    4. Ivanovski, Maja & Goricanec, Darko & Krope, Jurij & Urbancl, Danijela, 2022. "Torrefaction pretreatment of lignocellulosic biomass for sustainable solid biofuel production," Energy, Elsevier, vol. 240(C).
    5. Guo, Feihong & Chen, Jun & He, Yi & Gardy, Jabbar & Sun, Yahui & Jiang, Jingyu & Jiang, Xiaoxiang, 2022. "Upgrading agro-pellets by torrefaction and co-pelletization process using food waste as a pellet binder," Renewable Energy, Elsevier, vol. 191(C), pages 213-224.

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