![Yoon](https://ckcew13.com/wp-content/uploads/2024/03/Yoon-e1710160878244.jpg)
Hyung Chul Yoon
Dr. Yoon is a chief and principal researcher in the clean fuel laboratory at KIER and a group leader of green ammonia synthesis. His primary research interests are in the area of electrochemical- and thermochemical- catalysts and processes for low-pressure and low-temperature synthesis of green ammonia. More than 60 peer-reviewed papers have been published in Appl. Catal., Catal, Chem Eng J, Energy Environ Sci., and other journals. He received his Ph.D. in mechanical engineering department from the University of California Davis in 2008. After his Ph.D., he joined the dept. of mechnical and process engineering at ETH Zurich, Switzerland as a postdoctoral reseacher. Before joining KIER in 2011, his main research areas were hydrogen production via steam/authtothermal reformation of hydrocarbon fuels and thermochemical production of solar fuels.
Presentation title: Production and Utilization of Green Ammonia for Decarbonization
Abstract: Green ammonia, recognized as a carbon-free chemical, is drawing substantial interest as both a hydrogen carrier and a carbon-neutral fuel. It boasts a hydrogen content of 17.6 wt% and a volumetric energy density of 3.2 kWh/L at a mere 8 bar pressure. Remarkably, it remains liquid at ambient temperature under 10 bar or at -33°C at atmospheric pressure, enabling it to store 1.7 times more hydrogen than the equivalent volume of liquid hydrogen at -253°C. Globally, the annual production of ammonia surpasses 180 million tons, with over 20 million tons transported by sea. This underscores the well-established land and maritime infrastructure for ammonia transport, highlighting its pivotal role in facilitating the trade of green hydrogen and fostering a carbon-neutral society. Its advantageous volumetric hydrogen content and energy density, when compared to liquid hydrogen, further emphasize its importance. Additionally, the requisite infrastructure for ammonia’s storage and transport is already in place. To seamlessly integrate green ammonia into the current energy frameworks, it is imperative to focus on the development of technologies that allow for its cost-effective production, decomposition, and utilization. This presentation will delineate the Korea Institute of Energy Research (KIER)’s ongoing achievements and forward-looking views on devising economical methods for the production and application of green ammonia.