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Recent Biomass Upgrading and Conversion Technologies

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

Deadline for manuscript submissions: closed (15 November 2021) | Viewed by 4647

Special Issue Editors


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Guest Editor
Department Materials Science and Chemical Engineering, Hanyang University, Ansan 15588, Gyeonggi-do, Republic of Korea
Interests: biofuel; bio-based product; biochemical; pretreatment; bioconversion process integration; biorefinery; bioprocessing
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Guest Editor
Department of Chemical Engineering, State University of New York College of Environmental Science and Forestry, Syracuse, NY 13210, USA
Interests: biological/thermochemical conversion of biomass to fuels and chemicals; bio-based material application; elucidation of biomass and bio-product properties; development of lignocellulosic biorefinery
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Biomass has gained more attention as a promising feedstock in many industrial applications due to its sustainability and renewability. It can be transformed into alternative chemicals and fuels as well as value-added materials. Recently, diverse biomass upgrading strategies, including enhancing the process efficiency and utilizing the components into value-added products and energy, have been investigated to make biomass-derived products economically competitive.

This Special Issue will introduce but is not limited to recent advancements in biomass fractionation and conversion processes and the applications of individual components (e.g., cellulose, hemicellulose, lignin) as well as whole biomass. Review and research articles on biomass upgrading and conversion technology-related topics are welcome. If you would like to contribute a review paper, please contact one of the Editors to discuss the relevance of the topic before submitting the manuscript.

Prof. Dr. Tae Hyun Kim
Prof. Dr. Chang Geun Yoo

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

  • Biorefinery
  • Lignin valorization
  • Hemicellulose utilization
  • Biomass fractionation
  • Biomass upgrading

Published Papers (2 papers)

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Research

10 pages, 1146 KiB  
Article
Effect of Zinc-Calcium on Xylose Consumption by Mucor circinelloides (MN128960): Xylitol and Ethanol Yield Optimization
by Hector M. Fonseca-Peralta, Karen V. Pineda-Hidalgo, Claudia Castro-Martínez and Ignacio Contreras-Andrade
Energies 2022, 15(3), 906; https://doi.org/10.3390/en15030906 - 27 Jan 2022
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Abstract
Xylose is the second most abundant monomeric sugar on earth. Nevertheless, metabolizing xylose into ethanol is a complex process due to several biochemical reactions. Some microorganisms of the genus Mucor are suitable for this bioprocess. Using metal ions, such as zinc and calcium, [...] Read more.
Xylose is the second most abundant monomeric sugar on earth. Nevertheless, metabolizing xylose into ethanol is a complex process due to several biochemical reactions. Some microorganisms of the genus Mucor are suitable for this bioprocess. Using metal ions, such as zinc and calcium, allows some fungal species to increase their ethanol yield. In this work, the wild strain Mucor spp. (C1502) was molecularly identified via internal transcribed spacer (ITS) sequencing. Secondly, an optimization using response surface methodology (RSM) with a central composite experimental design (CCD) was carried out. The independent variables (X) were ZnSO4·7H2O (X1, 0.0–1.5 g/L) and CaCl2 (X2, 0.0–2.5 g/L) concentration in the fermentation broth in order to demonstrate the effect of these ions, xylose was used as the only carbon source. The dependent variables (Y) measured were ethanol yield (Y1, g ethanol/g xylose) and xylitol yield (Y2, g xylitol/g xylose). The identified strain, Mucor circinelloides, was given the accession number MN128960 by the NCBI. Once the optimal concentrations of zinc and calcium were calculated, experimental validation was performed, with the highest ethanol and xylitol yields reaching 0.36 g ethanol/g xylose and 0.35 g xylitol/g xylose, respectively. This study demonstrated that increasing the xylitol yield using the effect of the ions, zinc and calcium, increases the ethanol yield. Furthermore, M. circinelloides (C1502) can produce metabolites, such as ethanol and xylitol, from the xylose obtained from hemicellulose biomasses, which can be used as a carbon source at low cost and with great availability. Full article
(This article belongs to the Special Issue Recent Biomass Upgrading and Conversion Technologies)
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16 pages, 2558 KiB  
Article
Thermogravimetric and Kinetic Analysis of High-Temperature Thermal Conversion of Pine Wood Sawdust under CO2/Ar
by Bao Wang, Yujie Li, Jianan Zhou, Yi Wang, Xun Tao, Xiang Zhang and Weiming Song
Energies 2021, 14(17), 5328; https://doi.org/10.3390/en14175328 - 27 Aug 2021
Cited by 5 | Viewed by 1512
Abstract
The gasification behavior of pine wood sawdust was investigated in CO2 with different heating rates of 5, 10, 15, and 20 °C/min from room temperature to 1400 °C by thermogravimetric analysis (TGA) and mass spectrometry (MS). It was also examined under Ar [...] Read more.
The gasification behavior of pine wood sawdust was investigated in CO2 with different heating rates of 5, 10, 15, and 20 °C/min from room temperature to 1400 °C by thermogravimetric analysis (TGA) and mass spectrometry (MS). It was also examined under Ar to compare the differences observed under CO2 at heating rate of 10 °C/min. Kinetics of pine wood sawdust thermal decomposition was determined by the models of FWO, KAS and master plot method. TGA results revealed different reaction sections from pyrolysis to char gasification under CO2. The pyrolysis behavior was similar under CO2 and Ar and had a similar energy required value about 590 kJ/kg from 250 °C to 420 °C. CO, CH4, and H2 were the primary gases obtained from thermal decomposition, and the amounts of which in CO2 atmosphere were higher than those obtained in Ar. The average activation energy for pyrolysis under CO2 was 184.72 kJ/mol. Full article
(This article belongs to the Special Issue Recent Biomass Upgrading and Conversion Technologies)
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