Dear Colleagues,

Climate change and the generation of solid wastes are among the most pressing challenges of the 21st century. Concerns about the environmental impact of greenhouse gas emissions from fossil-based fuels have promoted the use of alternative sources of energy. These include renewable biomass and organic wastes (both agricultural and post-consumer) which are readily available. The development of the utilization of alternative resources has raised a number of other tasks and constraints linked to the nature of renewable resources, including treatment, processing, conversion, and applied technologies, and, thus, a large number of critical views on this issue.

This Special Issue mainly covers original research and studies related to the abovementioned topics, including but not limited to:

1. Thermochemical conversion (combustion, pyrolysis, gasification);
2. Physical conversion (pelletizing, densification, extraction);
3. Solid biofuels like biochar;
4. Liquid biofuels like biodiesel, bioethanol, and bio-oils;
5. Gas biofuels like syngas, biogas, biomethane, and biohydrogen;
6. Life-cycle analysis of the conversion process;
7. Policies on biofuel utilization.

Papers selected for this Special Issue will be subject to a peer review procedure with the aim of rapid and wide dissemination of research results, developments, and applications.

Dr. Aidin Panahi
Guest Editor

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. Gases is an international peer-reviewed open access quarterly 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 1000 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.

• biomass
• waste plastic
• municipal solid waste
• combustion
• gasification
• pyrolysis