Ammonia, which does not emit CO2 when burned, is expected to become a next-generation fuel as it contains properties ideally suited for the hydrogen economy.
Ammonia does not require cooling to extreme temperatures, and has a higher energy density than liquid hydrogen, making it more efficient to transport and store. Furthermore, producing ammonia with renewable energy results in zero or minimal greenhouse gas emissions
Clean ammonia comprises both blue and green ammonia. Blue ammonia is derived from blue hydrogen, produced based upon natural gas, with the CO2 stored in permanent reservoirs after a carbon capture and storage process (CCS). Green ammonia is produced carbon free by using green hydrogen produced based upon renewable energy. Producing clean ammonia is therefore a far more environmentally friendly way to produce fertilizer, as well as making it a promising fuel for the maritime sector.