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

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• 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