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Ammonia Included in Japan's International Resource Strategy
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Japan’s Ministry of Economy, Trade and Industry has singled out ammonia for the role it can play in the country’s creation of a "carbon-free society." The news was embedded in METI’s New International Resource Strategy which was released on March 30. In the report's framing, ammonia is cited for its association with “the concept of importing renewable energy produced in other countries.” In a departure from the practice found in most reports on the energy transition, the ammonia discussion stands alone and not as one item on a roster of potential renewable energy vectors.

Literature Review: Ammonia as a Fuel for Compression Ignition Engines
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The diesel engine, also known as the compression ignition (CI) engine, has been a workhorse of the modern energy economy for more than a hundred years. Its role in the coming sustainable energy economy will be determined by its ability to co-evolve with climate-friendly fuels. Two researchers from the National Institute of Advanced Industrial Science and Technology in Japan have now examined the fit between ammonia and the CI engine. Pavlos Dimitriou and Rahat Javaid arrive at a two-part conclusion in their paper, “A review of ammonia as a compression ignition engine fuel,” published in January in the International Journal of Hydrogen Energy. Part one is good news: “Ammonia as a compression ignition fuel can be currently seen as a feasible solution.” Part two is a dose of qualifying reality: to manage emissions of N2O, NOx, and unburnt NH3, “aftertreatment systems are mandatory for the adaptation of this technology,” which means that ammonia-fueled CI engines are likely to be feasible “only for marine, power generation and possibly heavy-duty applications where no significant space constraints exist.”

Environmental and Economic Assessment of Ammonia as a Fuel for Ships
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This month, the Korean Register published a comparative assessment of the environmental and economic merits of using ammonia as a maritime fuel. The work, written in collaboration with researchers at Pusan National University, is published in the open-access Journal of Marine Science and Engineering. It concludes that "ammonia can be a carbon-free fuel for ships," and presents "a meaningful approach toward solving GHG problems in the maritime industry."

Japan Advances SOFCs for the Built Environment
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A steady stream of Japanese news reports over the last several months attest to the country’s progress in deploying fuel cells in the built environment. Dubbed “Ene-Farms,” the appliances function as micro-scale combined heat and power units, providing electricity as well as heat for domestic applications. Most of the Ene-Farms deployed so far feature proton-exchange membrane (PEM) technology (which requires high-purity hydrogen). However, two recent developments show that solid oxide fuel cell (SOFC) technology (well suited for ammonia) could play a role, maybe even a large role, in Japan's Hydrogen Society.

Korean Register Sees Ammonia as Preferred Alternative Maritime Fuel
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Last week the classification society Korean Register of Shipping (KR) released Forecasting the Alternative Marine Fuel: Ammonia, a “technical document on the characteristics and the current status of ammonia as ship fuel.” One hesitates to take the title too literally, but the report really does forecast that ammonia will be the alternative marine fuel. Over the last year, a number of maritime transport stakeholders – engine producers, government agencies, other classification societies – have identified ammonia as a promising means of industry decarbonization. But in joining the group, KR makes a notably explicit and complete case in ammonia’s favor.

Ammonia energy is now a talking point for CEOs
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Chief executives of major corporations are now talking about ammonia energy. This represents another crucial step up the learning curve for clean industry: knowledge about ammonia's potential has successfully spread from the R&D department to the executive suite. This is the difference between development and deployment. The fertilizer industry saw this in 2018, when the CEOs of first movers like Yara and OCP announced green ammonia pilot plants. These latest announcements come, however, from the shipping and power sectors — far bigger industries, with no existing ammonia business — and they focus on the use of green ammonia: for fuel and for profit.

Green Ammonia Consortium: A Force for Ammonia Energy
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Japan’s Green Ammonia Consortium, an industry body dedicated to building “a value chain from supply to use of CO2-free ammonia,” launched its Web site on December 5. The site features plenty of interesting content, but most significant may be the roster of members. Eighty seven companies, public organizations, and individuals are listed. Taken together they represent a significant force for ammonia energy implementation in Japan and beyond.