An Approach to Maximize the Performance of Ammonia Synthesis Catalysts by Controlling Feedstock Supply
A study conducted by Yoshihiro Goto et al. in collaboration with National Institute of Advanced Industrial Science and Technology, Institute of Science Tokyo, and Toyota Motor Corporation was published in the International Journal of Hydrogen Energy.
Hydrogen and ammonia are attracting attention as next-generation fuels because they do not emit CO2 during energy utilization. Ammonia is more easily liquefied than hydrogen, making it suitable for energy storage and transportation. Today, ammonia is synthesized from fossil fuels. To achieve a carbon neutral society, it is an effective approach to use renewable hydrogen and develop highly efficient ammonia synthesis systems.
In this study, we focused on optimizing the ratio of raw materials supplied to the catalyst (the ratio of hydrogen to nitrogen) to maximize the performance of the developed ruthenium catalyst for ammonia synthesis. Two catalyst stages operate at different temperatures inside the reactor, and controlling the raw material ratio for each stage achieved high efficiency. It is expected that the use of this technology will contribute to the materialization of a carbon neutral society.
Title: Effect of H/N Ratio Control in a Multibed Ammonia Synthesis System with Ru-based Catalysts
Authors: Goto, Y., Kikugawa, M., Yamazaki, K., Matsumoto, H., Hamzah, AB., Ookawara, S., Manaka, Y., Nanba, T., Sato, A., Aoki, M.
Journal Name: International Journal of Hydrogen Energy
Published: December 11, 2024
https://doi.org/10.1016/j.ijhydene.2024.11.178