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Selected Papers from the “20th CIRIAF National Congress—Sustainable Development and Preservation of Environment and Human Health”

A special issue of Energies (ISSN 1996-1073). This special issue belongs to the section "C: Energy Economics and Policy".

Deadline for manuscript submissions: closed (10 January 2021) | Viewed by 4222

Special Issue Editors

Prof. Dr. Carlo Andrea Bollino

E-Mail Website
Guest Editor
Department of Economics, University of Perugia, Via Pascoli 20, 06123 Perugia, Italy
Interests: econometric modeling; consumer behavior; policy evaluation; energy markets; environmental policy; liberalization policy; regulation policy
Dr. Luca Evangelisti

E-Mail Website
Guest Editor
Department of Industrial, Electronic and Mechanical Engineering, Roma TRE University, 00146 Rome, Italy
Interests: building physics; energy efficiency; experimental measurements; building energy simulation; heat transfer; sustainability
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

CIRIAF (the Inter-University Research Centre on Pollution and Environment “Mauro Felli”) is a research center based out of the University of Perugia, which promotes interdisciplinary and international research activities in the fields of environmental pollution, as well as its health and socioeconomic effects, sustainable development, renewable and alternative energy, energy planning, and sustainable mobility. More than one hundred professors from about 20 different Italian and foreign universities are involved in the activities of the center.

The CIRIAF National Congress, at its twentieth edition in 2020, collected the research activities of hundreds of scientists. Fifty papers were presented during the congress and divided into the following sessions, which also involved four national research projects:

  • Methane recovery and carbon dioxide disposal in natural gas hydrate reservoirs;
  • Development and promotion of levulinic acid and carboxilate platforms by the formulation of novel and advanced PHA-based biomaterials and their exploitation for 3D printed green-electronic applications (VISION);
  • Biofeedstock: “Development of integrated technology platforms for the biomass residues valorization”;
  • Environmental, economic, and social sustainability;
  • Circular economy models and innovative integrated pathways;
  • BIOmasses Circular Holistic Economy ApPproach to EneRgy equipments (BIO-CHEAPER);
  • Renewable energies and sustainable plants;
  • Sustainable buildings and bio-architecture;
  • Territory strategic planning.

The Special Issue will include only the papers presented at the congress and selected by the scientific committee, which will still need to go through the rigorous peer revision process of the journal.

Prof. Dr. Carlo Andrea Bollino
Dr. Luca Evangelisti
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

  • Sustainable development 
  • Renewable energies 
  • Bioenergy 
  • Biomass and biofuels 
  • Biomaterials 
  • Sustainable buildings

Published Papers (2 papers)

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Research

11 pages, 3017 KiB  
Article
Intensification of Processes for the Production of Ethyl Levulinate Using AlCl3·6H2O
by Carlo Pastore and Valeria D’Ambrosio
Energies 2021, 14(5), 1273; https://doi.org/10.3390/en14051273 - 25 Feb 2021
Cited by 13 | Viewed by 1742
Abstract
A process for obtaining ethyl levulinate through the direct esterification of levulinic acid and ethanol using AlCl3·6H2O as a catalyst was investigated. AlCl3·6H2O was very active in promoting the reaction and, the correspondent kinetic and [...] Read more.
A process for obtaining ethyl levulinate through the direct esterification of levulinic acid and ethanol using AlCl3·6H2O as a catalyst was investigated. AlCl3·6H2O was very active in promoting the reaction and, the correspondent kinetic and thermodynamic data were determined. The reaction followed a homogeneous second-order reversible reaction model: in the temperature range of 318–348 K, Ea was 56.3 kJ·K−1·mol−1, whereas Keq was in the field 2.37–3.31. The activity of AlCl3·6H2O was comparable to that of conventional mineral acids. Besides, AlCl3·6H2O also induced a separation of phases in which ethyl levulinate resulted mainly (>98 wt%) dissolved into the organic upper layer, well separated by most of the co-formed water, which decanted in the bottom. The catalyst resulted wholly dissolved into the aqueous phase (>95 wt%), allowing at the end of a reaction cycle, complete recovery, and possible reuse for several runs. With the increase of the AlCl3·6H2O content (from 1 to 5 mol%), the reaction proceeded fast, and the phases’ separation improved. Such a behavior eventually results in an intensification of processes of reaction and separation of products and catalyst in a single step. The use of AlCl3·6H2O leads to a significant reduction of energy consumed for the final achievement of ethyl levulinate, and a simplification of line-processes can be achieved. Full article
(This article belongs to the Special Issue Selected Papers from the “20th CIRIAF National Congress—Sustainable Development and Preservation of Environment and Human Health”)
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10 pages, 1010 KiB  
Article
Acid-Assisted Organosolv Pre-Treatment and Enzymatic Hydrolysis of Cynara cardunculus L. for Glucose Production
by Mattia Gelosia, Alessandro Bertini, Marco Barbanera, Tommaso Giannoni, Andrea Nicolini, Franco Cotana and Gianluca Cavalaglio
Energies 2020, 13(16), 4195; https://doi.org/10.3390/en13164195 - 13 Aug 2020
Cited by 6 | Viewed by 2031
Abstract
Lignocellulosic biomass is a non-edible feedstock that can be used in integrated biorefinery for the production of biochemicals and biofuel. Among lignocellulosic biomass, Cynara cardunculus L. (cardoon) is a promising crop thanks to its low water and fertilizer demand. Organosolv is a chemical [...] Read more.
Lignocellulosic biomass is a non-edible feedstock that can be used in integrated biorefinery for the production of biochemicals and biofuel. Among lignocellulosic biomass, Cynara cardunculus L. (cardoon) is a promising crop thanks to its low water and fertilizer demand. Organosolv is a chemical treatment that uses numerous organic or aqueous solvent mixtures, and a small amount of acid catalyst, in order to solubilize the lignin and hemicellulose fractions, making the cellulose accessible to hydrolytic enzymes. Lignocellulosic residues of cardoon underwent a two-step treatment process to obtain fermentable glucose. In the first step, the milled biomass was subjected to microwave-assisted extraction using an acidified γ-valerolactone (GVL)/water mixture, yielding a solid cellulose pulp. In the second step, the pre-treated material was hydrolyzed by cellulolytic enzymes to glucose. The first step was optimized by means of a two-level full factorial design. The investigated factors were process temperature, acid catalyst concentration, and GVL/water ratio. A glucose production equal to 30.17 g per 100 g of raw material (89% of the maximum theoretical yield) was achieved after conducting the first step at 150 °C using an acidified water solution (1.96% H2SO4w/w). Full article
(This article belongs to the Special Issue Selected Papers from the “20th CIRIAF National Congress—Sustainable Development and Preservation of Environment and Human Health”)
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