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Presentation

A novel approach to ammonia decomposition

Bill David

This talk discusses a new type of process for the cracking of ammonia (NH3) that is an alternative to the use of rare or transition metal catalysts. Effecting the decomposition of NH3 using the concurrent stoichiometric decomposition and regeneration of sodium amide (NaNH2) via sodium metal (Na), this represents a significant departure in reaction mechanism compared with traditional surface catalysts. In variable-temperature NH3 decomposition experiments, using a simple flow reactor, the Na/NaNH2 system shows superior performance to supported nickel and ruthenium catalysts, reaching 99.2% decomposition efficiency with 0.5 g of NaNH2 in a 60 sccm NH3 flow at 530 °C.…

Student Laboratory Module: Kinetics of Ammonia Cracking
Presentation

Student Laboratory Module: Kinetics of Ammonia Cracking

Jason Ganley

The Chemical and Biological Engineering (CBE) Department at the Colorado School of Mines is dedicated to the continual improvement of the laboratory resources made available to those undergraduates enrolled in courses which have major or minor laboratory components. One such course is Kinetics and Reaction Engineering (CBEN 418), offered to undergraduate seniors in the CBE department. Historically, this course has been delivered primarily as a series of traditional classroom lectures with an experimental module (usually one week at the end of the semester) with about 2 hours of participation time per student outside of normal class hours. Previous experimental designs…

Using Local Green Energy and Ammonia to Power Gas Turbine Generators
Presentation

Using Local Green Energy and Ammonia to Power Gas Turbine Generators

Brian Evans

Beginning in the 1950s, a fundamental shift in the way information was electronically expressed and manipulated led to the “digital revolution” that has transformed — is still transforming — information systems and many major industries and that has given rise to the internet, social media, and instant very-low-cost communication (like this website). A good case can be made that a similar “revolution” is beginning — has already begun — to transform the energy systems upon which we all depend. This presentation will address the use of anhydrous (water-free) ammonia, NH3, as a realistic option for making a fundamental shift in…

A Hybrid Vehicle Powered by Hydrogen and Ammonia
Presentation

A Hybrid Vehicle Powered by Hydrogen and Ammonia

Paolo DarioRoberto GentiliNeri BonfantiGiuseppe PozzanaStefano FrigoNicolo DoveriVirgilio MattoliMarina Ragnoli

A partnership of Research and Industry entities has developed a fully working hybrid electric vehicle equipped with a 15 kW IC engine fuelled with liquid ammonia as a range extender of the lithium batteries pack on board. The entire vehicle powertrain (ie, the IC engine, the electric generator coupled with the engine, the electric motor, the electronics etc.) has been studied and designed. Regarding the IC engine, as is known, ammonia combustion is characterized by a high activation energy and a low flame velocity, therefore a small amount of hydrogen is requested as igniter and combustion promoter. The necessary amount…