Site items in: Content by Author Stephen H. Crolius

On the Ground in Japan: FCV Uptake and Hydrogen Fueling Stations
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Module four of the ten-module research and development agenda for Japan’s Cross-Ministerial Strategic Innovation Promotion Program -- Energy Carriers is entitled “Basic Technology for Hydrogen Station Utilizing Ammonia.” The rationale for including this technology is that “high purity H2 supply system with low cost hydrogen transportation is a key issue to spread fuel cell vehicles (FCVs).” A story published last week in the Tokyo Shimbun says that to date FCVs have not spread very far. Among the factors seen as constraints is the cost of hydrogen fueling stations (HFS). The Tokyo Shimbun story states that “according to industry officials, each station that supplies hydrogen to fuel cell vehicles runs about ¥400 million ($3.6 million) in construction costs. In order to achieve profitability, about 1,000 fuel cell vehicles are required as customers per location. Construction is not proceeding.” So far, the players focused on FCVs do not seem to be looking to ammonia as an expedient that will help reduce the cost of HFS and thereby encourage their construction and by extension the uptake of FCVs. This appears to be a missed opportunity whose benefits may become too compelling to ignore.

On the Ground in Japan: Residential Fuel Cells
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Last week Kaden Watch, a Japanese Web site for appliance news, reported that Tokyo Gas had delivered its 80,000th Ene Farm residential fuel cell system. This small news item, delivered by a niche media outlet, lifts a critical corner of the decidedly “big-tent” story of Japan’s strategy to develop a hydrogen-based energy economy. How the Ene Farm topic develops is likely to be a major factor in Japan’s ability to sustain its hydrogen vision -- and possibly a determinant of the role ammonia could play within it.

Second Day Added to NH3 Energy+ Conference
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The “NH3 Energy+: Enabling Optimized, Sustainable Energy and Agriculture” Topical Conference, originally conceived as a one-day event, has been extended to a second day, according to NH3 Fuel Association (NH3FA) President Norm Olson. “NH3 Energy+” is the 2017 edition of the NH3 Fuel Conference that has been held every year since 2004. This year it will be held under the auspices of the American Institute of Chemical Engineers’ Annual Meeting in Minneapolis in the U.S.

New Ammonia-Reforming Catalyst System
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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 Hydrogen Consensus
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Let’s say there is such a thing as the “hydrogen consensus.” Most fundamentally, the consensus holds that hydrogen will be at the center of the sustainable energy economy of the future. By definition, hydrogen from fossil fuels will be off the table. Hydrogen from biomass will be on the table but the amount that can be derived sustainably will be limited by finite resources like land and water. This will leave a yawning gap (in the U.S., 60-70% of total energy consumption) that will be filled with the major renewables -- wind, solar, and geothermal -- and nuclear energy. This may be as far as the consensus goes today, but more detail is now emerging on the global system of production and use that could animate a hydrogen economy.

Ammonia – and Other Nitrogen-Based Fuels
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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?

On the Ground in Japan: LH2 and MCH Hydrogen Fueling Stations
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While Japan’s Cross-Ministerial Strategic Innovation Promotion Program (SIP) continues to evaluate liquid hydrogen (LH2), methylcyclohexane (MCH), and ammonia as hydrogen energy carriers, Japanese press reports show that the backers of liquid hydrogen and MCH are building an early lead over ammonia with hydrogen fueling stations based on their favored commodities.

NH3 Energy+: Topical Conference at AIChE Annual Meeting
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“Ammonia Energy Arrives on World Stage.” This could have been the headline for today's story about the 2017 NH3 Fuel Conference that will be staged in conjunction with the American Institute of Chemical Engineers (AIChE). But that would be hyperbolic and would also single out just one step of ammonia energy's rise to global prominence. Nonetheless, the full-day event, officially entitled, “NH3 Energy+: Enabling Optimized, Sustainable Energy and Agriculture,” is unquestionably a milestone on the journey.

New Technology for Generating Hydrogen from Ammonia
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On March 21, Gifu University in Japan announced a breakthrough in technology for generating hydrogen from ammonia. A press release from the Gifu Prefectural Association Press Club stated that Professor Shinji Kambara, Director of the Next Generation Research Center within the Environmental Energy Systems Department at the Gifu University Graduate School of Engineering, has developed a "plasma membrane reactor" that is capable of evolving hydrogen with a purity of 99.999 percent from an ammonia feedstock. This surpasses the 99.97 percent purity announced last July by a research group centered at Hiroshima University with a hydrogen generation device based on a different technology.

ACS
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The deadline for abstracts for the Ammonia Economy session at the American Chemical Society (ACS) National Meeting in August has been extended to April 3. This was reported in an interview yesterday with Martin Owen Jones, Energy Materials Coordinator for the ISIS neutron spallation facility at the Rutherford Appleton Laboratory in the United Kingdom. Jones is the co-organizer of the session along with Michael Mock, a Catalysis Scientist at Pacific Northwest National Laboratory (PNNL) in the U.S. The session will be the most prominent treatment of ammonia energy to date at a scientific conference held by an organization of global stature.