Site items in: Cracking Ammonia

Nel Stakes a Claim on Another Key Frontier of Hydrogen Implementation
Article

Nel Stakes a Claim on Another Key Frontier of Hydrogen Implementation

Stephen H. Crolius July 05, 2018

On June 28, Norwegian hydrogen company Nel ASA issued a press release announcing that the company will supply “448 electrolyzers and associated fueling equipment to Nikola Motor Company as part of Nikola’s development of a hydrogen station infrastructure in the U.S. for truck and passenger vehicles.”  The Nikola-Nel arrangement is a globally significant step in the process of implementing a full-scale hydrogen energy economy.  And although its approach for supplying green energy to hydrogen fueling stations does not involve ammonia, it seems likely it will ultimately help make the case for ammonia as an economically advantaged option.

Sawafuji Moves toward Commercialization of NH3-to-H2 System
Article

Sawafuji Moves toward Commercialization of NH3-to-H2 System

Stephen H. Crolius June 14, 2018

On May 28 Sawafuji Electric Company issued a press release detailing advances made over the last year on the ammonia-to-hydrogen conversion technology it has been jointly developing with Gifu University.  The main area of progress is the rate of hydrogen generation, but the key takeaway from the announcement is that Sawafuji has set a schedule that culminates in product commercialization in 2020.

Toyota Supports H2 Society Roll-Out on Its Home Turf; Sees Role for NH3
Article

Toyota Supports H2 Society Roll-Out on Its Home Turf; Sees Role for NH3

Stephen H. Crolius May 03, 2018

Toyota Motor Corporation announced on April 25 the launch of an effort called the Chita City and Toyota City Renewable Energy-Use Low-Carbon Hydrogen Project.  According to the company’s press release, the project is intended as a step toward “the realization of a hydrogen-based society spanning the entire region through mutual coordination and all-inclusive efforts.”  For ammonia energy advocates, the announcement had two elements of particular significance. First is the clear indication that Toyota Motor Corporation is embracing ammonia as a hydrogen carrier – although not as a motor fuel.  Second is the project’s stated intention to establish a “system in which Aichi Prefecture certifies low-carbon hydrogen objectively and fairly.”

Novel Catalysts for Ammonia Cracking and Synthesis
Presentation

Novel Catalysts for Ammonia Cracking and Synthesis

Bill DavidJosh MakepeaceThomas Wood

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…

Delivering Clean Hydrogen Fuel from Ammonia Using Metal Membranes
Presentation

Delivering Clean Hydrogen Fuel from Ammonia Using Metal Membranes

Michael Dolan

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. For H2 production from NH3, the purity of the product H2 is…

Development of Materials and Systems for Ammonia-Fueled Solid Oxide Fuel Cells
Presentation

Development of Materials and Systems for Ammonia-Fueled Solid Oxide Fuel Cells

Koichi EguchiYosuke TakahashiHayahide YamasakiHidehito KuboAkihiro OkabeTakenori IsomuraTakahiro Matsuo

Hydrogen is the primary fuel source for fuel cells. However, the low volume density and difficulty in storage and transportation are major obstacles for the practical utilization. On-site generation of hydrogen from its carrier is an effective method for the fuel supply. Among various hydrogen carriers, ammonia is one of the promising candidates. Ammonia has high hydrogen density. The boiling point of ammonia is relatively high, leading to the ease in liquefaction and transportation. Hydrogen can be produced from ammonia with a mildly endothermic process. The reaction temperature of ammonia cracking is about 600˚C or higher which is close to…

254th ACS Meeting, Energy and Fuels Symposium “The Ammonia Economy” — Oxidation, Catalytic Cracking & Storage
Article

254th ACS Meeting, Energy and Fuels Symposium “The Ammonia Economy” — Oxidation, Catalytic Cracking & Storage

Martin Owen Jones October 31, 2017

In August of 2017 a symposium on the Ammonia Economy was held in Washington DC as part of the Energy and Fuels Division of the American Chemical Society (ACS) conference. The symposium was devised to explore the latest results from ammonia related research, including but not limited to; advances in the generation of ammonia, advances in the catalytic cracking of ammonia to nitrogen and hydrogen, ammonia storage and utilisation, detectors and sensors for ammonia, ammonia fuel cells and hydrogen from ammonia, ammonia combustion and ammonia safety.