Islanded ammonia power systems: Technology review & conceptual process design

Kevin H.R. Rouwenhorst, Aloijsius G.J. Van der Ham, Guido Mul and Sascha R.A. Kersten

Renewable and Sustainable Energy Reviews, 2019, vol. 114, issue C, -

Abstract: Recent advances in technologies for the decentralized, islanded ammonia economy are reviewed, with an emphasis on feasibility for long-term practical implementation. The emphasis in this review is on storage systems in the size range of 1–10 MW. Alternatives for hydrogen production, nitrogen production, ammonia synthesis, ammonia separation, ammonia storage, and ammonia combustion are compared and evaluated. A conceptual process design, based on the optimization of temperature and pressure levels of existing and recently proposed technologies, is presented for an islanded ammonia energy system. This process design consists of wind turbines and solar panels for electricity generation, a battery for short-term energy storage, an electrolyzer for hydrogen production, a pressure swing adsorption unit for nitrogen production, a novel ruthenium-based catalyst for ammonia synthesis, a supported metal halide for ammonia separation and storage, and an ammonia fueled, proton-conducting solid oxide fuel cell for electricity generation. In a generic location in northern Europe, it is possible to operate the islanded energy system at a round-trip efficiency of 61% and at a cost of about 0.30–0.35 € kWh−1.

Keywords: Ammonia economy; Hydrogen economy; Power-to-ammonia-to-power; Chemical energy storage; Decentralization; Islanded system; Conceptual process design (search for similar items in EconPapers)
Date: 2019
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Citations: View citations in EconPapers (19)

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DOI: 10.1016/j.rser.2019.109339

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