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Energies
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Green Diesel: Biomass Resources, Production Technologies and Combustion Applications
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Green Diesel: Biomass Resources, Production Technologies and Combustion Applications

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

Deadline for manuscript submissions: closed (31 December 2021) | Viewed by 9509

Special Issue Editors

Prof. Dr. Maria A. Goula

E-Mail Website
Guest Editor
Department of Chemical Engineering, University of Western Macedonia, GR-50100 Koila, Greece
Interests: environmental catalysis; biomass utilization; bio-oil; biogas; glycerol; hydrogen; syngas; renewable diesel; reforming; selective deoxygenation; CO2 hydrogenation
Special Issues, Collections and Topics in MDPI journals
Dr. Savvas L. Douvartzides

E-Mail Website
Guest Editor
Laboratory of Internal Combustion Engines, Department of Mechanical and Industrial Engineering, Western Macedonia University of Applied Sciences, Koila, 50100 Kozani, Greece
Interests: thermal engines; power plant engineering; fuel technologies; heterogeneous catalysis; fuel cells; energy storage
Dr. Nikolaos D. Charisiou

E-Mail Website
Guest Editor
Laboratory of Alternative Fuels and Environmental Catalysis, Department of Environmental Engineering, Western Macedonia University of Applied Sciences, Koila, 50100 Kozani, Greece
Interests: biogas reforming; glycerol reforming; hydrogen production; syngas production; renewable diesel
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Although fossil-based energy has been the prime mover for the unprecedented socio-economic development that the world has experienced since the industrial revolution, the limited nature of these resources, issues of accessibility and affordability, as well the threat to human well-being posed by climate change, have provided a fresh impetus in the quest for alternative energy sources. Nowhere is this need more urgent than in the transport sector, which still overwhelmingly relies on petro-based sources.

Green diesel is a new generation biofuel with properties and characteristics that make it an improved alternative to both fossil petroleum diesel and to the fatty acid methyl esters (FAME) commonly known as biodiesel. Produced from naturally available biomass resources, green diesel is environmentally friendly while, due to its chemical resemblance to petroleum diesel, it can be used in compression ignition combustion engines and residential or industrial burners without any equipment modification, in neat form or in blends with conventional petroleum diesel in any desired ratio.

The aim of this Special Issue, entitled “Green diesel: Biomass resources, production technologies and combustion applications” is to collect high quality scientific works related to: (a) the classification and chemistry of the available biomass feedstocks that can be used for green diesel production; (b) production technologies such as hydro-processing of triglycerides, upgrading of sugars and starches into C15-C18 saturated hydrocarbons, thermal conversion of biomass (upgrading of pyrolysis produced bio-oil and hydrothermal liquefaction produced biocrude), and biomass-to-liquid conversion of lignocellulosic biomass; and (c) the final fuel properties and their effect in modern combustion applications (internal combustion engines, turbines, oil burners, etc.).

Prof. Dr. Maria A. Goula
Assoc. Prof. Dr. Savvas L. Douvartzides
Dr. Nikolaos D. Charisiou
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

  • Green diesel
  • Biofuels
  • Biomass feedstocks
  • Hydro-processing of triglycerides
  • Upgrading of sugars and starches
  • Biomass pyrolysis
  • Hydrothermal liquefaction of biomass
  • Fischer–Tropsch (FT) diesel and biomass-to-liquid technology
  • Green diesel combustion

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Published Papers (2 papers)

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Research

14 pages, 1531 KiB  
Article
Effect of Storage Time on the Physicochemical Properties of Waste Fish Oils and Used Cooking Vegetable Oils
by Nina Bruun, Fiseha Tesfaye, Jarl Hemming, Meheretu Jaleta Dirbeba and Leena Hupa
Energies 2021, 14(1), 101; https://doi.org/10.3390/en14010101 - 27 Dec 2020
Cited by 6 | Viewed by 4214
Abstract
Waste fish oils (FOs) and used cooking vegetable oils (UCOs) are increasingly becoming alternative renewable fuels. However, different physicochemical aspects of these renewable fuels, including the effect of storage, are not well-known. In this work, the effect of the storage period on physicochemical [...] Read more.
Waste fish oils (FOs) and used cooking vegetable oils (UCOs) are increasingly becoming alternative renewable fuels. However, different physicochemical aspects of these renewable fuels, including the effect of storage, are not well-known. In this work, the effect of the storage period on physicochemical properties of selected samples of FOs and UCOs was investigated. The bio-oils were stored at 4 °C for up to five years before each experimentation. The chemical properties were characterized using capillary gas chromatography with flame ionization detection (GC-FID) and high-performance size exclusion chromatography including an evaporative light scattering detector (HPSEC-ELSD). Water contents and acid numbers of the bio-oils were determined using the Karl Fischer (KF) titration and the ASTM D 664 methods. Furthermore, the average heating values and surface tension of the bio-oils were determined. According to the results obtained, for all bio-oil types, the concentrations of polymerized triglycerides, diglycerides, and fatty acids and monoglycerides had increased during the storage periods. The physical properties of the bio-oils also showed a small variation as a function of the storage period. The overall results observed indicate that the deterioration of the physicochemical properties of bio-oils can be controlled through storage in dark, dry, and cold conditions. Full article
(This article belongs to the Special Issue Green Diesel: Biomass Resources, Production Technologies and Combustion Applications)
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15 pages, 2822 KiB  
Article
Catalytic Conversion of Palm Oil to Bio-Hydrogenated Diesel over Novel N-Doped Activated Carbon Supported Pt Nanoparticles
by Wei Jin, Laura Pastor-Pérez, Juan J. Villora-Pico, Mercedes M. Pastor-Blas, Antonio Sepúlveda-Escribano, Sai Gu, Nikolaos D. Charisiou, Kyriakos Papageridis, Maria A. Goula and Tomas R. Reina
Energies 2020, 13(1), 132; https://doi.org/10.3390/en13010132 - 26 Dec 2019
Cited by 37 | Viewed by 4442
Abstract
Bio-hydrogenated diesel (BHD), derived from vegetable oil via hydrotreating technology, is a promising alternative transportation fuel to replace nonsustainable petroleum diesel. In this work, a novel Pt-based catalyst supported on N-doped activated carbon prepared from polypyrrole as the nitrogen source (Pt/N-AC) was developed [...] Read more.
Bio-hydrogenated diesel (BHD), derived from vegetable oil via hydrotreating technology, is a promising alternative transportation fuel to replace nonsustainable petroleum diesel. In this work, a novel Pt-based catalyst supported on N-doped activated carbon prepared from polypyrrole as the nitrogen source (Pt/N-AC) was developed and applied in the palm oil deoxygenation process to produce BHD in a fixed bed reactor system. High conversion rates of triglycerides (conversion of TG > 90%) and high deoxygenation percentage (DeCOx% = 76% and HDO% = 7%) were obtained for the palm oil deoxygenation over Pt/N-AC catalyst at optimised reaction conditions: T = 300 °C, 30 bar of H2, and LHSV = 1.5 h−1. In addition to the excellent performance, the Pt/N-AC catalyst is highly stable in the deoxygenation reaction, as confirmed by the XRD and TEM analyses of the spent sample. The incorporation of N atoms in the carbon structure alters the electronic density of the catalyst, favouring the interaction with electrophilic groups such as carbonyls, and thus boosting the DeCOx route over the HDO pathway. Overall, this work showcases a promising route to produce added value bio-fuels from bio-compounds using advanced N-doped catalysts. Full article
(This article belongs to the Special Issue Green Diesel: Biomass Resources, Production Technologies and Combustion Applications)
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