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Wood-Based Bioenergy: 2nd Edition
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Wood-Based Bioenergy: 2nd Edition

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "A4: Bio-Energy".

Deadline for manuscript submissions: 30 July 2026 | Viewed by 2617

Special Issue Editors

Prof. Dr. Ahmed Koubaa

E-Mail Website
Guest Editor
Laboratoire de Biomatériaux, Université du Québec en Abitibi-Témiscamingue, Rouyn-Noranda, QC J9X 5E4, Canada
Interests: biomaterials; biocomposites; bioenergy; materials characterization; wood processing and valorization
Special Issues, Collections and Topics in MDPI journals
Dr. Flavia Lega Braghiroli

E-Mail Website
Guest Editor
Institut de Recherche Sur Les Forêts, Rouyn-Noranda, QC J9X 5E4, Canada
Interests: bioresourced materials; wood valorization; biomass thermochemical conversion; biofuels; biochar/activated biochar; porous carbon materials; biofuel; byproduct applications
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We invite submissions to a Special Issue of the journal Energies on the topic “Wood-Based Bioenergy: 2nd Edition”.

Today, bioenergy is of increasing interest as a renewable, environmentally friendly alternative to energy derived from fossil fuels, and it can play a significant role in reducing greenhouse gas (GHG) emissions. Bioenergy derived from agriculture and wood biomass is among the most important renewable energy options. It is obtained in three major types of fuel at different states: solid, liquid, and gaseous. Solid biomass biofuels include pellets, charcoal, biochar, torrefied biomass, and biocoke. Biomass liquid biofuels from wood biomass include lignocellulosic ethanol, butanol, biodiesel, and pyrolytic oil. Gaseous fuels from biomass include biogas, syngas, and hydrogen. Bioenergy is now used in many advanced applications, including transport, power and heat generation, electrodes for energy storage and batteries, etc. However, biomass-sourced bioenergy is facing several environmental, technological, scientific, and economic challenges. Its sustainability and its future depend on several complex variables, including the biomass harvesting and management, biomass competition for other uses, demand and trade processes for bioenergy, the optimization of technological processes and energetic performance, competitiveness with alternative energies, complying with environmental legislation, etc.

This Special Issue aims to address the challenges and opportunities of the use of biomass for bioenergy sourced from agriculture and forestry throughout the value chain, from the supply side to its energetic performance. We welcome original contributions regarding recent developments in wood and biomass-based bioenergy. This Special Issue will include selected manuscripts presented at the Euromagh 2025 international Conference where potential topics of interest include, but are not limited to:

  • Thermochemical wood and biomass modification and conversion for bioenergy production;
  • New and advanced technologies and applications for biomass-based bioenergy;
  • Characterization of the energetic performance of different forms of biomass-based bioenergy;
  • The contribution and role of bioenergy in climate change and the reduction of GHG emissions;
  • The contribution of bioenergy to sustainability and circular economy.

Prof. Dr. Ahmed Koubaa
Dr. Flavia Lega Braghiroli
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 250 words) can be sent to the Editorial Office for assessment.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Energies is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • wood biomass
  • wood valorization
  • bioenergy
  • biofuel and biofuel applications
  • advanced bioenergy applications
  • wood thermochemical modification
  • calorific/energetic value
  • sustainability of wood bioenergy
  • bioenergy and climate change and greenhouse gas emissions

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Related Special Issue

Published Papers (3 papers)

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Research

18 pages, 1654 KB  
Article
Biochemical Methane Yield and Process Performance in Thermophilic Anaerobic Digestion of Abandoned Organic Solid Wastes
by Zaineb Dhaouefi, Salma Taktek, Pauline Fortin, Simon Lafontaine, Yann LeBihan, Ahmed Koubaa, Habib Horchani and Flavia Lega Braghiroli
Energies 2026, 19(4), 921; https://doi.org/10.3390/en19040921 - 10 Feb 2026
Viewed by 673
Abstract
In the context of the global energy transition, renewable and sustainable resources are increasingly being explored as an alternative to fossil fuels. Lignocellulosic and organic waste biomass is abundant, low-cost, and represents a promising feedstock for bioenergy production. However, the valorization of abandoned [...] Read more.
In the context of the global energy transition, renewable and sustainable resources are increasingly being explored as an alternative to fossil fuels. Lignocellulosic and organic waste biomass is abundant, low-cost, and represents a promising feedstock for bioenergy production. However, the valorization of abandoned or underutilized residues remains largely unexplored. This study evaluated the bioenergy potential of eight solid organic waste materials collected from abandoned sites, including: (1) landfilled woodwaste, (2) softwood and (3) hardwood sawdust, (4) fresh pine bark (5) decomposed pine bark, (6) decomposed leaf and yard waste, (7) decomposed organic food waste (8) and aged barn dust. Physicochemical characterization revealed their high organic matter content across all substrates, with volatile solids (VS) ranging from 40% to 95%, whereas the C/N ratio varied widely from 10 to 1297. To optimize conditions, co-digesting was performed at a fixed substrate-to-inoculum ratio (SIR) at 1, which effectively balanced the high carbon content and enhanced process stability. Under thermophilic anaerobic digestion, organic matter degradation ranged from 16% to 71%. The highest specific methane potential reached 89.9 ± 7.7 L CH4·kg VS added−1 for fresh pine bark, while the lowest was 25.2 ± 6.8 L CH4·kg VS added−1 for decomposed organic food waste. The resulting digestates were rich in nutrients, demonstrating high agronomic value. Anaerobic digestion of abandoned lignocellulosic and organic residues presents a dual benefit: it reduces pollution while producing renewable energy in the form of methane and valuable by-products that can be used as fertilizers, thereby ensuring a circular economy. This study demonstrates the significant potential of utilizing overlooked waste streams as valuable resources in sustainable bioenergy generation. Full article
(This article belongs to the Special Issue Wood-Based Bioenergy: 2nd Edition)
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13 pages, 649 KB  
Article
Elemental Content and Distribution in Various Willow Clones and Tissue Types
by Cyriac S. Mvolo, Emmanuel A. Boakye and Richard Krygier
Energies 2026, 19(3), 607; https://doi.org/10.3390/en19030607 - 24 Jan 2026
Viewed by 475
Abstract
Willows (genus Salix) are versatile plants with applications in construction, medicine, and biomass fuel in North America. Advances in breeding have improved willow clones for higher yields and pest resistance, but the chemical content and distribution across different plant parts remain poorly [...] Read more.
Willows (genus Salix) are versatile plants with applications in construction, medicine, and biomass fuel in North America. Advances in breeding have improved willow clones for higher yields and pest resistance, but the chemical content and distribution across different plant parts remain poorly understood. This study examined the variation in chemical elements (carbon, hydrogen, nitrogen, sulfur, chlorine, and ash) across six willow clones (India, Jorr, Olof, Otisco, Preble, and Tora) and three tissue types (wood, bark, twigs). We also compared freeze-drying and oven-drying methods to assess their impact on chemical content. Freeze-dried samples generally exhibited higher carbon and hydrogen concentrations than oven-dried samples, with statistically significant differences primarily observed for carbon, while nitrogen showed no overall significant difference between drying methods. Chemical composition varied among clones, although no single clone consistently dominated across all chemical parameters. In contrast, pronounced tissue-type differences were observed: bark had higher nitrogen, carbon, sulfur, chlorine, and ash contents, whereas wood exhibited relatively higher hydrogen concentrations, with twigs showing intermediate values. These findings suggest that accounting for tissue-specific chemical differences can improve the selection and utilization of willow biomass and increase the accuracy of ecological assessments, including carbon storage estimates. The findings of this study indicate that oven-drying should remain in use within the bioenergy sector, whereas freeze-drying ought to become the preferred standard for carbon-accounting protocols. Full article
(This article belongs to the Special Issue Wood-Based Bioenergy: 2nd Edition)
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20 pages, 2421 KB  
Article
Selective Microwave Pretreatment of Biomass Mixtures for Sustainable Energy Production
by Raimonds Valdmanis and Maija Zake
Energies 2025, 18(14), 3677; https://doi.org/10.3390/en18143677 - 11 Jul 2025
Cited by 1 | Viewed by 723
Abstract
Methods for the improvement of regional lignocellulosic resources (wood and agriculture waste) were studied and analyzed using blends with optimized compositions and a selective pretreatment of the blends using microwaves to enhance their thermochemical conversion and energy production efficiency. A batch-size pilot device [...] Read more.
Methods for the improvement of regional lignocellulosic resources (wood and agriculture waste) were studied and analyzed using blends with optimized compositions and a selective pretreatment of the blends using microwaves to enhance their thermochemical conversion and energy production efficiency. A batch-size pilot device was used to provide the thermochemical conversion of biomass blends of different compositions, analyzing the synergy of the effects of thermal and chemical interaction between the components on the yield and thermochemical conversion of volatiles, responsible for producing heat energy at various stages of flame formation. To control the thermal decomposition of the biomass, improving the flame characteristics and the produced heat, a selective pretreatment of blends using microwaves (2.45 GHz) was achieved by varying the temperature of microwave pretreatment. Assessing correlations between changes in the main characteristics of pretreated blends (elemental composition and heating value) on the produced heat and composition of products suggests that selective MW pretreatment of biomass blends activates synergistic effects of thermal and chemical interaction, enhancing the yield and combustion of volatiles with a correlating increase in produced heat energy, thus promoting the wider use of renewable biomass resources for sustainable energy production by limiting the use of fossil fuels for heat-energy production and the formation of GHG emissions. Full article
(This article belongs to the Special Issue Wood-Based Bioenergy: 2nd Edition)
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