The hydrogen economy may experience a revival, the old problems still exist. Hydrogen is, to put it mildly, not easy to handle. Fortunately there are derivatives from hydrogen as an energy storage medium, that solve some of the hydrogen problems. Ammonia is one of them. A new impetus in that direction comes from the university of Aarhus in Denmark. The progress made entails improved methods of producing N2 and H2 without fossil fuel. Ammonia (NH3) is subsequently produced in the conventional way and is to be burned as a liquid fuel in a fuel cell. Ammonia is to be produced solely with the ingredients electricity, water and air. The projects is concentrating on heavy traffic (ships, trains).
The German company MAN is planning to have an ammonia-fueled marine engine operational by 2022.
Challenges that remain: low flammability and incomplete combustion of ammonia, resulting in undesirable NOx emissions. Ammonia is toxic for humans
[ingenioer.au.dk] – AU researchers develop the carbon-free fuel of the future from air, water and electricity
[eng.au.dk/en] – the “perps”
[cleantechnica.com] – The Potential Of Ammonia As Carbon-Free Fuel — Major New Research Project At The University Of Aarhus
[nh3fuelassociation.org] – Ship Operation Using LPG and Ammonia As Fuel on MAN B&W Dual Fuel ME-LGIP Engines
[ammoniaenergy.org] – MAN Energy Solutions: an ammonia engine for the maritime sector
[man-es.com] – MAN corporate site
[deepresource] – Ammonia (NH3) as Storage Medium for Renewable Energy
[deepresource] – First Climate Neutral Power Station in The Netherlands
[deepresource] – The Netherlands is Placing its Bets on the Hydrogen Economy