2024 has seen successful funding rounds for a number of ammonia energy startups, ranging in focus from catalyst development to next-generation, modular synthesis technologies.
One of the key steps in project development is the selection of the licensor for the renewable ammonia synthesis loop. For renewable ammonia projects, licensors including KBR, Topsoe, Thyssenkrupp Uhde, Casale, and Stamicarbon offer a range of technologies and services covering small to large-scale ammonia production. We explore these different technology offerings, as well as the growing list of projects where they are being deployed.
A fast-growing ecosystem of startups is progressing various technology pathways in Australia and New Zealand. Melbourne-based Jupiter Ionics is developing an electrolytic cell that will directly reduce nitrogen to ammonia under mild temperature and pressure conditions. In New Zealand, Liquium is embarking on a pilot-scale deployment of its miniaturised Haber Bosch technology. The University of Newcastle and Element One are progressing validation and pilot-phase deployments of AMMONIAC - a novel, “chemical-looping” ammonia production system. And in Sydney, PlasmaLeap is developing a plasma-based system, with on-farm trials already planned.
Realisation of electrochemical nitrogen reduction to ammonia has proven to be a herculean scientific challenge. Recently, a focus on Lithium-mediated synthesis has delivered promising results. Last year a team from Monash University in Australia unveiled their phosphonium “proton shuttle” method, and this year have reported nearly 100% Faradaic efficiency for the reaction (with promising reaction rates). Late last year, a team from the Technical University of Demark (DTU) reported that addition of small amounts of oxygen gas drastically increased Faradaic efficiencies and production rates. The results push electrochemical synthesis R&D ever-closer to elusive benchmarks set for commercial realisation.
