The Japanese manufacturer IHI Corporation announced on March 28 that it had successfully demonstrated the co-firing of ammonia and coal in a fuel mix composed of 20% ammonia. Ammonia-coal co-firing had previously been demonstrated by Chugoku Electric in a fuel mix composed of just 0.6-0.8% ammonia.
IHI says its ultimate goal is to “construct a value chain that connects the production and use of ammonia, using combustion technology of gas turbines and coal-fired boilers, using ammonia as fuel.”
A new study has made a major addition to the available literature on the economic benefits of ammonia energy. This latest study, published by researchers from CSIRO in Australia, provides the data needed to define the round-trip efficiency of using ammonia as a sustainable fuel and hydrogen carrier.
To demonstrate the progress of the SIP "Energy Carriers" program, the Japan Science and Technology Agency last week released a video, embedded below, that shows three of its ammonia fuel research and development projects in operation.
R&D is often an abstract idea: this video shows what it looks like to generate power from ammonia.
As it turns out, fuel cells aren't hugely photogenic. Nonetheless, if a picture is worth a thousand words, this will be a long article.
In the last 12 months ...
Researchers seeking to fire gas turbines with ammonia made significant strides toward realization of commercial-scale machines in both the U.K. and Japan. This means that electricity generation has become a realistic near-term use-case for ammonia energy.
Chugoku Electric Power Company announced today that they have filed a patent application for a clean-power technology that involves co-firing ammonia with coal. The novel approach is attracting widespread interest.
The ammonia-fueled gas turbine (A-GT) seems destined to become one of the key technologies in the sustainable energy economy of the future. Siemens AG, for one, features the A-GT in its vision for “Green Ammonia for Energy Storage and Beyond” and the demonstration system that the company is building at the Rutherford Appleton Laboratory in the U.K. Last month Ian Wilkinson, Siemens’ Programme Manager for the demonstration project, spoke about the project’s progress at the 1st European Power to Ammonia® Conference in Rotterdam in The Netherlands. Although he devoted a slide to the A-GT, the detailed perspective came from another presentation at the conference. This one was delivered by Dr. Agustin Valera-Medina, a Senior Lecturer at Cardiff University, one of Siemens’ main green ammonia collaborators.
The maritime industry is beginning to show significant interest in using ammonia as a "bunker fuel," a sustainable alternative to the highly polluting heavy fuel oil (HFO) currently used in ships across the world.
In recent months, a firm of naval architects and a new maritime think tank have both been evaluating ammonia as a fuel. This includes a road map for future research, and collaborations for a demonstration project that will allow them to design and build a freight ship "Powered by NH3."
On April 27 the on-line journal Science Advances published “Carbon-free H2 production from ammonia triggered at room temperature with an acidic RuO2/γ-Al2O3 catalyst.” The lead author, Katsutoshi Nagaoka, and his six co-authors are associated with the Department of Applied Chemistry at Oita University in Japan. The innovation featured in the paper could prove to be an important enabler of ammonia fuel in automotive applications.
The Institute for Sustainable Process Technology recently published a feasibility study, Power to Ammonia, looking at the possibility of producing and using ammonia in the renewable power sector. This project is based in The Netherlands and is led by a powerful industrial consortium.
I wrote about the feasibility study last month, but it deserves closer attention because it examines three entirely separate business cases for integrating ammonia into a renewable energy economy, centered on three site-specific participants in the study: Nuon at Eemshaven, Stedin at Goeree-Overflakkee, and OCI Nitrogen at Geleen.
Over the next few years, the group intends to build pilot projects to develop and demonstrate the necessary technologies. Next month, however, these projects will be an important part of the Power-to-Ammonia Conference, in Rotterdam on May 18-19.
This article is the first in a series of three that aims to introduce each business case.
Next month the print edition of Fuel Processing Technology will feature a paper entitled “Auto-ignition of a carbon-free aqueous ammonia/ammonium nitrate monofuel: a thermal and barometric analysis.” This title is provocative. First, what is this idea of a fuel composed of a mixture of ammonia and ammonium nitrate (AN)? If ammonia is a good fuel, is it made better with the addition of ammonium nitrate? Second, why is it aqueous? Is the presence of water a feature or a bug? Third, what is a monofuel and why is this term used when the fuel is a mixture of two molecular species? And finally, why is the paper ultimately about auto-ignition?