Nitrogen-Based Fuels: A Power-to-Fuel-to-Power Analysis

Area of Science:

• Energy storage and conversion
• Chemical engineering
• Sustainable fuels

Background:

• The need for efficient and safe hydrogen storage solutions is critical for future energy systems.
• Current hydrogen storage methods face challenges related to safety, cost, and infrastructure.
• Exploring alternative chemical energy carriers is essential for a sustainable energy transition.

Purpose of the Study:

• To evaluate seven representative carbon- and nitrogen-based fuels as potential hydrogen storage media.
• To analyze the energetic feasibility of a power-to-fuel-to-power cycle for these fuels.
• To investigate the potential of a nitrogen-based economy for safe and abundant hydrogen storage.

Main Methods:

• Comparative energy analysis of carbon- and nitrogen-based fuels.
• Power-to-fuel-to-power cycle simulation and evaluation.
• Assessment of fuel properties including toxicity, safety, and abundance.

Main Results:

• Seven representative fuels were evaluated based on their energy storage capacity.
• The power-to-fuel-to-power analysis indicated energetic feasibility for several fuel candidates.
• Nitrogen-based fuels demonstrated potential as safe and abundant hydrogen storage media.

Conclusions:

• A nitrogen-based economy, utilizing chemically stored hydrogen on nitrogen, is energetically feasible.
• Nitrogen-based fuels offer a promising, nontoxic, and safe alternative for future energy storage.
• This study supports further research into nitrogen-based fuels for large-scale hydrogen energy applications.