Tag Archives: Cracking ammonia

Novel Catalysts for Ammonia Cracking and Synthesis

Bill David*1,2, Josh Makepeace1, Thomas Wood2
[1] University of Oxford; [2] Rutherford Appleton Laboratory, United Kingdom

NH3 Fuel Conference, Minneapolis, November 1, 2017
AIChE Annual Meeting, Topical Conference: NH3 Energy+


The most effective ammonia cracking catalysts are currently based on rare metals such as ruthenium and cobalt. While iron can efficiently crack ammonia at 600 °C, it is desirable to develop similarly inexpensive catalysts that are effective at lower temperatures between 350 °C and 500 °C. In this presentation, a new family of imide-based catalysts are described that crack ammonia around 400 °C to 550 °C. These materials do not behave as conventional surface-based catalysts and offer an affordable route for on-board cracking of ammonia for hydrogen fuel-cell cars. The operational parameters of a small 50W lab-based demonstrator will be described and the presentation will conclude with a discussion of the promise of these materials as ammonia synthesis catalysts. Continue reading

Delivering Clean Hydrogen Fuel from Ammonia Using Metal Membranes

Michael Dolan
CSIRO, Australia

NH3 Fuel Conference, Minneapolis, November 1, 2017
AIChE Annual Meeting, Topical Conference: NH3 Energy+


The use of ammonia (NH3) as a hydrogen vector can potentially enable renewable energy export from Australia to markets in Asia and Europe. With a higher hydrogen density than liquid H2, plus existing production and transport infrastructure, and well-developed safety practices and standards, the financial and regulatory barriers to this industry are lower than for liquid H2 transport. The only significant technical barrier which remains, however, is the efficient utilisation of ammonia fuel at or near the point of use, either directly or through the production of H2. Continue reading

Research and Development of Ammonia-fueled SOFC Systems

Koichi Eguchi1*, Atthapon Srifa1, Takeou Okanishi1, Hiroki Muroyama1, Toshiaki Matsui1, Masashi Kishimoto1, Motohiro Saito1, Hiroshi Iwai1, Hideo Yoshida1, Masaki Saito2, Takeshi Koide2, Hiroyuki Iwai2, Shinsuke Suzuki2, Yosuke Takahashi2, Toshitaka Horiuchi3, Hayahide Yamasaki3, Shohei Matsumoto4, Shuji Yumoto4, Hidehito Kubo4, Jun Kawahara5, Akihiro Okabe5, Yuki Kikkawa6, Takenori Isomura6
1 Kyoto University; 2 Noritake; 3 Nippon Shokubai; 4 Toyota Industries; 5 Mitsui Chemical; 6 Tokuyama, Japan

NH3 Fuel Conference, Los Angeles, September 19, 2016


Ammonia is a promising hydrogen carrier because of its high hydrogen density, low production cost, and ease in liquefaction and transport. Ammonia decomposes into nitrogen and hydrogen through a mildly endothermic process. The ammonia decomposition temperature is close to the operating conditions of solid oxide fuel cells (SOFCs). Therefore, the integration of these two devices is beneficial in terms of efficient heat and energy managements and will lead to the development of simplified generation systems. Continue reading

Cracking ammonia

Bill David*1,2, Josh Makepeace2, Hazel Hunter1 and Tom Wood1
1ISIS Facility, Rutherford Appleton Laboratory, UK
2Inorganic Chemistry Laboratory, University of Oxford, UK

13th Annual NH3 Fuel Conference, September 19, 2016


In this talk, I will discuss our latest research in developing novel ammonia cracking catalysts. While ammonia can be used directly as a fuel in high temperature fuel cells, internal combustion engines and gas turbine, the ability to crack ammonia affordably and effectively increases the range of possibilities for utilising ammonia as an energy vector. Continue reading