Ammonigy, Heraeus Precious Metals and the Technical University of Darmstadt have partnered to demonstrate operations using cracked ammonia fuel in a four-stroke MAN test engine. The performance and efficiency of the test engine when running on ammonia-hydrogen fuel was comparable to natural gas operations, and use of an exhaust aftertreatment system reduced potentially harmful nitrogen-based emissions to near-zero levels.
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Technology status: PEM electrolysis for renewable ammonia production
Kevin Rouwenhorst August 01, 2023
Recent PEM technology developments have centered around two issues: i) the relative scarcity of Iridium, and ii) the membrane thickness, limiting the efficiency of the PEM electrolyzer. This week we explore new approaches to both, including work by precious metal company Heraeus, and Norwegian start-up HyStar.