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Biomass Wastes for Energy Production 2023
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Biomass Wastes for Energy Production 2023

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

Deadline for manuscript submissions: closed (30 April 2023) | Viewed by 6669

Special Issue Editors

Dr. Eliseu Monteiro

E-Mail Website
Guest Editor
Faculty of Engineering, University of Porto, 4200 Porto, Portugal
Interests: biomass gasification; gasification modeling; hydrogen
Special Issues, Collections and Topics in MDPI journals
Dr. Sérgio Ferreira

E-Mail Website
Guest Editor
CT2M—Centre for Mechanical and Materials Technologies, Mechanical Engineering Department, Minho University, 4804-533 Guimarães, Portugal
Interests: bomass gasification; equilibrium models; stoichiometric model; non-stoichiometric model; brewers’ spent grains; allothermal gasification; batch reactor; autothermal gasification; downdraft reactor; thermodynamics; chemical equilibrium; carbon boundary point

Special Issue Information

Dear Colleagues,

Environmental problems are forcing a rethinking of the world’s energy supply system. In parallel, there is an increasing amount of global solid wastes production. A fundamental shift toward greater reliance on biomass wastes in the world’s energy system is plausible because major technological advances are ongoing that hold the promise of making the conversion of biomass into high-quality energy carriers, like electricity and gaseous or liquid fuels economically competitive with fossil fuels. Therefore, waste-to-energy systems have become a topic of paramount importance for both industry and researchers due to interest in energy production from waste and improved chemical and thermal efficiencies with the more cost-effective designs. This biomass shift is also important for industries to become more efficient by using their own wastes to produce their own energy in the light of the circular economy concept.

This Special Issue on “Biomass Wastes for Energy Production” aims to publish novel advances of waste-to-energy technologies from experimental and computational perspectives. Topics include but are not limited to:

  • Biomass wastes: availability, characterization, and role on circular economy;
  • Progress in waste-to-energy technologies;
  • Computational models for biomass-based energy generation;
  • Cost and performance analysis of waste-to-energy technologies;
  • Life cycle analysis of waste-to-energy technologies.

Dr. Eliseu Monteiro
Dr. Sérgio Ferreira
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 100 words) can be sent to the Editorial Office for announcement on this website.

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

  • biomass wastes
  • waste-to-energy technologies
  • thermodynamic and CFD analysis
  • life cycle analysis

Published Papers (3 papers)

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Research

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16 pages, 1582 KiB  
Article
Effect of Temporal Variation in Chemical Composition on Methane Yields of Rendering Plant Wastewater
by Erika Conde and Prasad Kaparaju
Energies 2022, 15(19), 7252; https://doi.org/10.3390/en15197252 - 2 Oct 2022
Cited by 1 | Viewed by 1301
Abstract
The effect of temporal variation in chemical composition on methane yields of rendering plant wastewater was studied in batch experiments at 37 °C. In total, 14 grab samples were collected from Monday through Friday (Day 1 to 5) from a rendering plant located [...] Read more.
The effect of temporal variation in chemical composition on methane yields of rendering plant wastewater was studied in batch experiments at 37 °C. In total, 14 grab samples were collected from Monday through Friday (Day 1 to 5) from a rendering plant located in Queensland, Australia. Each day, three samples were collected: early morning (S1), midday (S2) and afternoon (S3). Chemical analyses showed that a significant different in total solids (TS), volatile solids (VS), and chemical oxygen demand (COD) was noticed among the samples. TS content ranged from 0.13% to 1.82% w/w, while VS content was between 0.11% and 1.44% w/w. Among the samples, S2 of Day 3 had the highest COD concentration (10.5 g/L) whilst S1 of Day 1 had the lowest COD (3.75 g/L) and total volatile fatty acid (VFA) concentration (149.1 mg/L). In all samples, acetic acid was the dominant VFA and accounted for more than 65–90% of total VFAs. Biochemical methane potential studies showed that the highest methane yield of 270.2 L CH4/kgCODadded was obtained from S3 of Day 3. Whilst the lowest methane yield was noticed for S1 of Day 1 (83.7 L CH4/kgCODadded). Results from kinetic modelling showed the modified Grompetz model was best fit than the first order model and a large variation was noticed between the experimental and the modelled data. Time delay ranged from 2.51 to 3.84 d whilst hydrolysis constant values were close to 0.21 d−1. Thus, the study showed that chemical composition of incoming feed to a biogas plant varies throughout the week and is dependent on the chemical composition of organic materials received and the amount of steam used for rendering process. Full article
(This article belongs to the Special Issue Biomass Wastes for Energy Production 2023)
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Review

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25 pages, 3484 KiB  
Review
Lignin-First Biorefinery for Converting Lignocellulosic Biomass into Fuels and Chemicals
by Zhongyang Luo, Qian Qian, Haoran Sun, Qi Wei, Jinsong Zhou and Kaige Wang
Energies 2023, 16(1), 125; https://doi.org/10.3390/en16010125 - 22 Dec 2022
Cited by 12 | Viewed by 2633
Abstract
Driven by the excessive consumption of fossil resources and environmental pollution concerns, a large amount of biorefinery research efforts have been made for converting lignocellulosic biomass into fuels and chemicals. Recently, a strategy termed “lignin-first,” which allows for realizing high-yield and high-selectivity aromatic [...] Read more.
Driven by the excessive consumption of fossil resources and environmental pollution concerns, a large amount of biorefinery research efforts have been made for converting lignocellulosic biomass into fuels and chemicals. Recently, a strategy termed “lignin-first,” which allows for realizing high-yield and high-selectivity aromatic monomers, is regarded as one of the best prospective strategies. This review summarizes recent research advances in lignin-first biorefinery, starting from the raw lignocellulose through lignin-first processing and moving to downstream processing pathways for intermediate compounds. In particular, for the core purpose of producing liquid fuels, the corresponding downstream processing strategies are discussed in detail. These are based on the structural properties of the intermediates derived from lignin-first biorefinery, including the catalytic conversion of lignin and its derivatives (aqueous phase system and pyrolysis system) and the cascade utilization of carbohydrate residues (fermentation, pyrolysis, and hydrothermal liquefaction). We conclude with current problems and potential solutions, as well as future perspectives on lignin-first biorefinery, which may provide the basis and reference for the efficient utilization of lignocellulosic biomass. Full article
(This article belongs to the Special Issue Biomass Wastes for Energy Production 2023)
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35 pages, 2738 KiB  
Review
Simulation and Optimization of Lignocellulosic Biomass Wet- and Dry-Torrefaction Process for Energy, Fuels and Materials Production: A Review
by Antonios Nazos, Dorothea Politi, Georgios Giakoumakis and Dimitrios Sidiras
Energies 2022, 15(23), 9083; https://doi.org/10.3390/en15239083 - 30 Nov 2022
Cited by 4 | Viewed by 2107
Abstract
This review deals with the simulation and optimization of the dry- and wet-torrefaction processes of lignocellulosic biomass. The torrefaction pretreatment regards the production of enhanced biofuels and other materials. Dry torrefaction is a mild pyrolytic treatment method under an oxidative or non-oxidative atmosphere [...] Read more.
This review deals with the simulation and optimization of the dry- and wet-torrefaction processes of lignocellulosic biomass. The torrefaction pretreatment regards the production of enhanced biofuels and other materials. Dry torrefaction is a mild pyrolytic treatment method under an oxidative or non-oxidative atmosphere and can improve lignocellulosic biomass solid residue heating properties by reducing its oxygen content. Wet torrefaction usually uses pure water in an autoclave and is also known as hydrothermal carbonization, hydrothermal torrefaction, hot water extraction, autohydrolysis, hydrothermolysis, hot compressed water treatment, water hydrolysis, aqueous fractionation, aqueous liquefaction or solvolysis/aquasolv, or pressure cooking. In the case of treatment with acid aquatic solutions, wet torrefaction is called acid-catalyzed wet torrefaction. Wet torrefaction produces fermentable monosaccharides and oligosaccharides as well as solid residue with enhanced higher heating value. The simulation and optimization of dry- and wet-torrefaction processes are usually achieved using kinetic/thermodynamic/thermochemical models, severity factors, response surface methodology models, artificial neural networks, multilayer perceptron neural networks, multivariate adaptive regression splines, mixed integer linear programming, Taguchi experimental design, particle swarm optimization, a model-free isoconversional approach, dynamic simulation modeling, and commercial simulation software. Simulation of the torrefaction process facilitates the optimization of the pretreatment conditions. Full article
(This article belongs to the Special Issue Biomass Wastes for Energy Production 2023)
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