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Renewable Gases and Fuels: Recent Developments and Perspectives

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Applied Thermal Engineering".

Deadline for manuscript submissions: closed (20 December 2021) | Viewed by 2957

Special Issue Editors


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Guest Editor
Department of Mechanical Engineering, Universitat Rovira I Virgili, Avda. Països Catalans, 26, 43007 Tarragona, Spain
Interests: applied thermal engineering; distributed generation of energy; renewable energy; polygeneration systems
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Guest Editor
CREVER—Group of Applied Thermal Engineering, Mechanical Engineering Dept., Universitat Rovira i Virgili, Av. Països Catalans 26, 43007 Tarragona, Spain
Interests: energy efficiency; applied thermal engineering; polygeneration systems; renewable energy

Special Issue Information

Dear Colleagues,

One of the global objectives for the next decades is to achieve a clean and sustainable energy supply system. Intermittent and renewable energy sources such as solar and wind energy will have to be complemented using so-called renewable gases and fuels as green hydrogen or biomethane obtained from organic waste. In this way, the integration of solar or wind energy sources will not require the use of auxiliary fossil fuels. Moreover, waste generated from human activities will be used as a source of energy to produce green gas fuels.

This Special Issue is intended to be a collection of contributions from experts focused on the review, investigation, and practical implementation of renewable gases, from their production, processing, delivery, and uses for energy and mobility applications.

The topics that will be covered include, but are not limited to, the production (electrolysis, anaerobic digestion, gasification, pyrolysis, etc.), processing (reforming, methanation, membrane separation, etc.), conditioning for specific applications, storage technologies, distribution (pipeline networks, liquefaction, and regasification), and final technologies using the following:

  • Biogas
  • Syngas
  • Biomethane
  • Synthetic natural fas
  • E-fuels

for power generation, combined power, heating and cooling, and mobility and polygeneration technologies including engines, gas turbines, fuel cells, and heat pumps among others. The integration with other renewable energy sources such as photovoltaics or solar thermal energy and fresh water will also be a main focus of interest.

The effective development of this technology will be only possible from a global perspective when considering the whole life cycle of renewable gases and fuels, including the technical, economic, and environmental perspectives, as proposed in this Special Issue.

Sincerely,

Prof. Dr. Joan Carles Bruno
Dr. Antonio Atienza-Márquez
Guest Editors

Manuscript Submission Information

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 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

  • renewable gases and fuels
  • alternative fuels
  • non-fossil fuels
  • biogas
  • syngas
  • biomethane
  • liquefied biomethane
  • bio-LNG
  • synthetic natural gas
  • hydrogen
  • E-fuels
  • carbon-neutral fuels

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Published Papers (1 paper)

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Research

11 pages, 2117 KiB  
Article
Determination of Thermodynamic Parameters of Polylactic Acid by Thermogravimetry under Pyrolysis Conditions
by Paul Palmay, Melissa Mora, Diego Barzallo and Joan Carles Bruno
Appl. Sci. 2021, 11(21), 10192; https://doi.org/10.3390/app112110192 - 30 Oct 2021
Cited by 12 | Viewed by 2374
Abstract
In the present study, the thermodynamic parameters of Polylactic Acid (PLA) under conditions of thermal degradation were determined. The PLA material, previously sampled and characterized, was analyzed by dynamic thermogravimetry (TG) at heating rates of 5, 10 and 15 °C min−1 with [...] Read more.
In the present study, the thermodynamic parameters of Polylactic Acid (PLA) under conditions of thermal degradation were determined. The PLA material, previously sampled and characterized, was analyzed by dynamic thermogravimetry (TG) at heating rates of 5, 10 and 15 °C min−1 with a nitrogen flow of 20 mL min−1 from a temperature of 25 to 900 °C. The data were treated using isoconversional kinetic models to obtain the activation energy and the pre-exponential factor of each model. To fit the DTG curves, the Arrhenius equation was used applying the Contraction Sphere reaction model: two-dimensional phase limit reaction (R2). The thermodynamic parameters such as enthalpy, Gibbs free energy and entropy were determined from the kinetic parameters of suitable models for each heating rate after statistical validation and comparison with other studies. The results showed that as the heating rate increases, the degradation temperature also increases, while the activation energy, enthalpy and pre-exponential factor decrease. According to the value of ∆G (171.65 kJ mol−1), PLA has a significant potential to be used as a raw material to produce bioenergy/biofuels by pyrolysis. Full article
(This article belongs to the Special Issue Renewable Gases and Fuels: Recent Developments and Perspectives)
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