Site items in: Ammonia Safety

An Open Letter to the International Energy Agency
Article

To the Authors of The Future of Hydrogen: First I would like to thank you for an excellent report.  I have devoted two Ammonia Energy posts to The Future of Hydrogen.  If you read them, you will see that my appraisal is overwhelmingly positive.  But I am writing this letter because I take issue with your characterization of ammonia's hazard profile. I hereby submit that your discussion in this regard is inaccurate and unhelpful.   

Ammonia as a Renewable Fuel for the Maritime Industry
Article

Last week, I wrote about a crucial new report that discusses four fuel technologies: batteries, hydrogen, ammonia, and nuclear. These could reduce the shipping sector's emissions in line with targets set in the IMO's Initial GHG Strategy. The report, Reducing CO2 Emissions to Zero, concludes that "all industry stakeholders ... need to get on with the job of developing zero CO2 fuels." This call to action should be consequential: it comes from the International Chamber of Shipping, an influential industry group that represents "more than 80% of the world merchant fleet." This week, I provide an example of the kind of research required, with an update on a project that aims to demonstrate "the technical feasibility and cost effectiveness of an ammonia tanker fueled by its own cargo." Although this project is still in its early days, I want to highlight three aspects that I believe will be crucial to its success. First, the work is being done by a consortium, bringing together many industry stakeholders, each with its own expertise and commercial interests. Second, the scope of research extends beyond conventional engine configurations to include not just new fuels but also new technology combinations; in other words, rather than assess new fuels in old engines, it aims to develop optimized propulsion designs for zero-emission fuels. And, third, its consideration of ammonia as a fuel begins with a comprehensive safety analysis.

Safety Assessments of Ammonia as a Transportation Fuel
Article

New data from a number of ammonia energy safety studies will be published later this year. In the meantime, two excellent reports already exist that provide comparative, quantitative risk analyses. Each compares the risks of using ammonia as a fuel in passenger vehicles against the risks of other fuels, including gasoline, LPG, CNG, methanol, and hydrogen. Both conclude that the risks associated with using ammonia as a fuel are "similar, if not lower than for the other fuels."

Importance of Public Perception towards an Ammonia Economy
Article

During development of the technical aspects of any energy project, a social perspective needs to be considered. Public opinion is going to be a fundamental parameter to determine the role of renewables in the future, with decarbonisation meaning innovation towards a comprehensive plan that involves not only technology but also psychology and how these two can benefit from each other. Due to the importance of understanding public perception of ammonia, Cardiff University conducted a study focused on the Yucatan Peninsula, Mexico, which currently presents high revenues in agriculture and depends on ammonia as a fertiliser. An analysis of stakeholder’s perception of ammonia was carried out to understand the different barriers and drivers of each established group.

Ammonia Fuel Safety
Presentation

This paper introduces the existing literature on the safety of using ammonia as a fuel, which provides comparative data for a range of traditional and alternative fuels and energy carriers. The studies reviewed conclude that risk levels associated with using ammonia as a fuel are “similar to those of gasoline,” or “similar, if not lower than for the other fuels,” also including hydrogen, methanol, LPG, and CNG. Ammonia as a fuel can meet all “acceptable” risk levels in even the most stringent regulatory jurisdictions. Addressing popular misconceptions and fears by providing robust sources for quantitative data on the dangers of…

NH3 Safety
Article

The relative safety of NH3 (ammonia) is one of the most debated topics surrounding the adoption of NH3 fuel. Inaccurate and misleading information has been widely circulated on the topic. A thorough examination of the facts will show that the use of NH3 in energy applications will not only meet the most stringent safety standards currently in place worldwide, but that NH3 will be safer to use than many leading transportation fuels. Two highly credible risk assessments analyze the safety of NH3 vs gasoline and other fuels, and both of them conclude that NH3 would be as safe as, or safer than, gasoline, methanol, LPG (propane), CNG (compressed natural gas), or hydrogen.

Bunker Ammonia: momentum toward a
Article

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."

U.S. EPA's Toxicological Review of Ammonia
Article

On September 20 last year, the U.S. Environmental Protection Agency (EPA) announced the release of the IRIS Toxicological Review of Ammonia - Noncancer Inhalation (Final Report). The Interagency Science Discussion Draft of the Ammonia IRIS Assessment and accompanying comments were also released. The report was the culmination of almost five years of work by the EPA and a specially convened Scientific Advisory Board. September 20 also happened to be the day of the Storage and Safety Session at the 2016 NH3 Fuel Conference. This is a striking coincidence because safety is seen as a key barrier to the adoption of ammonia as a sustainable energy carrier, and the report is a substantial contribution to the literature of ammonia safety.