Dear Colleagues,

This issue is a continuation of the previous successful Special Issue “Designing Catalytic Desulfurization Processes to Prepare Clean Fuels”.

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 fine particulate matter of metal sulfates. In response to this, the specifications of transportation fuels set by governments have been increasing 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 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 for treating 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
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. 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 2700 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.

• clean fuels
• sulfur compounds
• catalysts desulfurization processes
• materials for sulfur removal
• sustainable catalytic processes

• Designing Catalytic Desulfurization Processes to Prepare Clean Fuels in Catalysts (6 articles)