Autor
Tomás Gómez-Acebo Temes
Profesor de la Escuela de Ingeniería TECNUN-Universidad de Navarra y Director de la Cátedra de Transición Energética Fundación Repsol en Universidad de Navarra.
Autor
Ane Arrillaga García
Estudiante en la Universidad de Navarra.
Hydrogen carriers can be a technological solution to reduce its volume and lower costs.
Hydrogen transport and storage are key challenges in the transition to cleaner energies. This is where ammonia and methanol emerge as prominent solutions. Both compounds have mature infrastructures and play a crucial role in the hydrogen economy.
This post analyzes the potential of these hydrogen transport options.
What properties do these carriers have?
- ⚗️ Ammonia: Produced using the Haber-Bosch process, it offers a high hydrogen density and is used as a fuel in marine engines. However, it poses challenges due to its toxicity and the need to control NOx emissions.
- 🌱 Methanol: Liquid at room temperature, which simplifies its transport and storage. Its "green" version, obtained from captured CO₂, stands out as a sustainable option.
Key applications
Both compounds are being used as alternative fuels in maritime engines, contributing to the decarbonisation of the sector. Although their calorific value is lower than that of diesel, they help to decarbonise maritime transport.
In terms of transport, methanol has a logistical advantage as it is easier to handle. However, ammonia, thanks to its higher hydrogen content, could be key in applications that require large quantities of this gas.
Alternatives in the short, medium and long term.
Although both compounds have limitations, their complementary use can facilitate the energy transition. While green methanol offers immediate solutions, ammonia could lead in larger-scale applications in the future.
If you want to know more about how ammonia and methanol can be solutions for transporting hydrogen, you can download the attached document.