Special Issue "Designing Catalytic Desulfurization Processes to Prepare Clean Fuels"

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Environmental Catalysis".

Deadline for manuscript submissions: 10 October 2021.

Special Issue Editors

Dr. Salete Balula
E-Mail Website
Guest Editor
LAQV-REQUIMTE Associate Laboratory, University of Porto, 4169-007 Porto, Portugal
Interests: heterogeneous catalysts; polyoxometalates; catalytic metal-organic frameworks; sustainable catalytic processes; oxidation catalysis; hydrogen peroxide; desulfurization; glycerol oxidation; deep-eutectic solvents
Special Issues and Collections in MDPI journals
Dr. Fátima Mirante
E-Mail Website
Guest Editor
LAQV-REQUIMTE Associate Laboratory, Universidade do Porto, Porto 4169-007, Portugal
Interests: heterogeneous catalysis; ionic liquids; silica functionalized materials
Dr. Diana Julião
E-Mail Website
Guest Editor
LAQV-REQUIMTE Associate Laboratory, Universidade do Porto, 4169-007 Porto, Portugal
Interests: catalytic sustainable systems; deep eutectic solvents; oxidative catalysis

Special Issue Information

Dear Colleagues,

Sulfur compounds in fuels are the main reason for acid rain and environmental pollution. The combustion of fossil fuels generates emissions of sulfur such as sulfur dioxide (SO2), which is corrosive and toxic, and as fine particulate matter of metal sulfates. In response to this, the specifications of govern transportation fuels have been increasing severely with respect to sulfur content over the years. The strict regulations imposed have required the development of novel technologies with higher cost efficiency and sustainability, adapted to a variety of different fuels, presenting distinct properties and sulfur contents. The actual desulfurization method in the world refineries, i.e., hydrodesulfurization, has been adjusted to meet the tight specifications of the current limit imposed by government directives; however, the extreme severe conditions required (high temperature, pressure, and consumption of large amounts of hydrogen) are affecting the economic viability of the process. On the other hand, the hydrodesulfurization process is unviable to treat certain types of fuels, such as heavy fuel oil.

Catalytic processes can be used to improve or even replace the actual hydrodesulfurization. Therefore, this Special Issue aims to outline promising catalytic desulfurization technologies to treat fuels, designing novel cost-effective and sustainable processes. These can include biocatalysis, extractive, oxidation, adsorptive processes, etc., with viability for industrial application. Submissions are welcome in the form of original research manuscripts or critical review papers that represent the scientific field.

Dr. Salete Balula
Dr. Fátima Mirante
Dr. Diana Julião
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 papers will be 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. Catalysts is an international peer-reviewed open access monthly 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 2000 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

  • Sulfur compounds Catalysts Desulfurization processes Clean fuels Materials

Published Papers (1 paper)

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Research

Article
Aerobic Oxidative Desulfurization of Liquid Fuel Catalyzed by P–Mo–V Heteropoly Acids in the Presence of Aldehyde
Catalysts 2021, 11(8), 988; https://doi.org/10.3390/catal11080988 - 18 Aug 2021
Viewed by 411
Abstract
Aerobic oxidative desulfurization (ODS) of model liquid fuel (dodecane spiked with dibenzothiophene (DBT)) was carried out in the presence of bulk and supported Keggin-type heteropoly acids H3+nPMo12-nVnO40 (HPA-n, n = 0–3) as heterogeneous catalysts and benzaldehyde [...] Read more.
Aerobic oxidative desulfurization (ODS) of model liquid fuel (dodecane spiked with dibenzothiophene (DBT)) was carried out in the presence of bulk and supported Keggin-type heteropoly acids H3+nPMo12-nVnO40 (HPA-n, n = 0–3) as heterogeneous catalysts and benzaldehyde as a sacrificial reductant. In the presence of bulk H4PMo11VO40 (HPA-1), 100% of DBT was removed from fuel (converted to DBT sulfone) at 60 °C and ambient air pressure. Multiple catalyst reuse without loss of activity was demonstrated. The ODS reaction was strongly inhibited by radical scavengers. An unbranched radical chain mechanism was proposed. Full article
(This article belongs to the Special Issue Designing Catalytic Desulfurization Processes to Prepare Clean Fuels)
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