Improvement of energy properties of lignocellulosic waste by thermochemical conversion into biochar Technical paper

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Zorica Lopičić
Anja Antanasković
Tatjana Šoštarić
Vladimir Adamović
Marina Orlić
Jelena Milojković
Milan Milivojević


Peach stones, a valuable agro-industrial by-product available in many countries worldwide, comprise a renewable resource, which can be widely applied for multifunctional purposes. Its important advantages such as high-energy value, low ash content, low price and wide abundance, make peach stones an ideal fuel for energy production, but also for new materials synthesis. Although peach stones exhibit adequate combustion properties, allowing their direct use with minimal physical/chemical treatment, they often need further modification in order to improve their thermal properties, where slow pyrolysis is frequently used. This study aims to provide a practical and effective solution to the revalorization of waste biomass originating from the fruit processing industry, through slow pyrolysis in order to convert this waste into carbonaceous material – biochar. The thermo-chemical conversion of raw biomass resulted in a stable material with excellent fuel properties, with higher mass energy density and grinding ability, providing biochar with properties, in energy sense, similar or even better than a coal. Biochar has a higher fixed carbon content and a higher energy potential than biomass itself, and its application as a biofuel might reduce emissions of greenhouse gases, as it reduces the amount of waste landed and increases the share of energy generated from renewable sources.


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Lopičić, Z., Antanasković, A., Šoštarić, T. ., Adamović, V. ., Orlić, M., Milojković, J. ., & Milivojević, M. (2023). Improvement of energy properties of lignocellulosic waste by thermochemical conversion into biochar: Technical paper. HEMIJSKA INDUSTRIJA (Chemical Industry).
Environmental Engineering - Solid Waste Treatment

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Martín-Lara MA, Pérez A, Vico-Pérez MA, Calero M, Blázquez G. The role of temperature on slow pyrolysis of olive cake for the production of solid fuels and adsorbents. Process Saf Environ Prot. 2019; 121: 209-220.

Council of the European Union. Proposal for a Directive of the European Parliament and of the Council on the promotion of the use of energy from renewable sources. 2018;

Özçimen D, Ersoy-Meriçboyu A. Characterization of biochar and bio-oil samples obtained from carbonization of various biomass materials. Renew Energ. 2010; 35(6): 1319-1324.

Kwapinski W, Byrne CMP, Kryachko E, Wolfram P, Adley C, Leahy JJ, Novotny EH, Hayes MHB. Biochar from biomass and waste. Waste Biomass Valorization. 2010; 1: 177–189.

Obernberger I, Thek G. Physical characterisation and chemical composition of densified biomass fuels with regard to their combustion behaviour. Biomass Bioenergy. 2004; 6: 653-669.

Huang YF, Cheng PH, Chiueh PT, Lo SL. Leucaena biochar produced by microwave torrefaction: Fuel properties and energy efficiency. Appl Energy. 2017; 204: 1018-1025.

Channiwala SA, Parikh PP. A unified correlation for estimating HHV of solid, liquid and gaseous fuels. Fuel. 2002; 8: 1051-1063.

Nachenius RW, van de Wardt TA, Ronsse F, Prins W. Torrefaction of pine in a bench-scale screw conveyor reactor. Biomass Bioenergy. 2015; 79: 96–104.

Kim D, Lee K, Park KY. Hydrothermal carbonization of anaerobically digested sludge for solid fuel production and energy recovery. Fuel. 2014; 130: 120-125.

Janković B, Manić N, Stojiljković D, Jovanović V. The assessment of spontaneous ignition potential of coals using TGA–DTG technique. Combust Flame. 2020; 211: 32-43.

Weber K, Heuer S, Quicker P, Li T, Løvås T, Scherer V. An Alternative Approach for the Estimation of Biochar Yields. Energy Fuels. 2018; 32 (9), 9506-9512.

Lopičić Z, Avdalović J, Milojković J, Antanasković A, Lješević M, Lugonja N, Šoštarić T. Removal of diesel pollution by biochar – Support in water remediation. Hem Ind. 2021; 75(6): 329-338.

Jindo K, Mizumoto H, Sawada Y, Sanchez-Monedero MA, Sonoki T. Physical and chemical characterization of biochars derived from different agricultural residues. Biogeosciences. 2014; 11:6613–6621.

Abdullah H, Wu H. Biochar as a Fuel: 1. Properties and grindability of biochars produced from the pyrolysis of Mallee wood under slow-heating conditions. Energy Fuels. 2009; 23(8); 4174-4181.

Lalak J, Martyniak D, Kasprzycka A, Żurek G, Moroń W, Chmielewska M, Wiącek D, Tys, J. Comparison of selected parameters of biomass and coal. Int Agrophys. 2016; 30(4): 475-482.

Dołżyńska M, Obidziński S, Piekut J, Yildiz G. The utilization of plum stones for pellet production and investigation of post-combustion flue gas emissions. Energies. 2020; 13(19): 5107.

Idris SS, Rahman NA, Ismail K, Alias AB, Rashid ZA, Aris MJ. Investigation on thermochemical behaviour of low rank Malaysian coal, oil palm biomass and their blends during pyrolysis via thermogravimetric analysis (TGA). Bioresour Technol. 2010; 101(12): 4584-4592,

Lopičić Z, Stojanović M, Kaluđerović Radoičić T, Milojković J, Petrović M, Mihajlović M, Kijevčanin M. Optimization of the process of Cu(II) sorption by mechanically treated Prunus persica L. - Contribution to sustainability in food processing industry. J Clean Prod. 2017; 156: 95-105,

Serapiglia M, Cameron KD, Stipanovic A, Smart LB. Analysis of biomass composition using high-resolution thermogravimetric analysis and percent bark content for the selection of shrub willow bioenergy crop varieties. Bioenergy Res. 2009 2: 1-9.

Laird DA. The charcoal vision: a win-win-win scenario for simultaneously producing bioenergy, permanently sequestering carbon, while improving soil and water quality. Agron J. 2008; 100: 178-181.

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