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Future Ammonia Technologies: Electrochemical (part 2)
Article

Future Ammonia Technologies: Electrochemical (part 2)

Trevor Brown December 27, 2017

Last week, in Part 1 of this series on electrochemical ammonia synthesis technologies, I quoted a recent article by researchers at MIT that identified avenues for future research and development. One option was a biomimicry approach, learning from "enzymatic catalysts, such as nitrogenases," which can "either be incorporated into or provide inspiration for the design of electrocatalytic processes." The nitrogenase enzyme, nature's ammonia synthesis technology, was developed in an iterative innovation process, otherwise known as evolution, that took hundreds of millions of years to reach this level of efficiency. According to one group of electrochemists, who presented their results at the recent NH3 Energy+ conference, nitrogenase produces ammonia in nature with an enviable 75% process efficiency - so it's no surprise that they are basing their industrial technology on it.

Solid Oxide Cell Enabled Ammonia Synthesis and Ammonia Based Power Production
Presentation

Solid Oxide Cell Enabled Ammonia Synthesis and Ammonia Based Power Production

John Bøgild Hansen

Haldor Topsøe’s leading role as supplier of ammonia synthesis catalysts and technology is well known. The company has, however, also been active for decades in developing Solid Oxide Cell based stacks and systems. The presentation will describe a novel, highly integrated process for ammonia synthesis based on Solid Oxide Electrolysis. The energy efficiency is very high due to ability of the SOEC to use steam generated from the synthesis reaction heat in the ammonia synthesis loop and the favorable thermodynamics of high temperature electrolysis. Experimental results from hydrogen generation from steam using SOEC and power production from ammonia using Solid…

Report from the European Conference: Renewable Ammonia cost-competitive with Natural Gas Ammonia
Article

Report from the European Conference: Renewable Ammonia cost-competitive with Natural Gas Ammonia

Trevor Brown June 23, 2017

The viability of producing ammonia using renewable energy was one of the recurring themes of the recent Power to Ammonia conference in Rotterdam. Specifically, what cost reductions or market mechanisms would be necessary so that renewable ammonia - produced using electrolytic hydrogen in a Haber-Bosch plant - would be competitive with normal, "brown" ammonia, made from fossil fuels. A number of major industry participants addressed this theme at the conference, including Yara and OCI Nitrogen, but it was the closing speech, from the International Energy Agency (IEA), that provided the key data to demonstrate that, because costs have already come down so far, renewable ammonia is cost-competitive in certain regions today.

Presentation

Overview of the KIER’s Electrochemical Ammonia Synthesis – Present State and Perspective

Chung-Yul YooHyung Chul YoonDae Sik YunJong-Nam Kim

Ammonia has a potential as a carbon-free energy carrier since it contains 17.6wt% of hydrogen and can be easily stored and transported safely and efficiently. The state-of-the-art industrial process for ammonia production is the Haber-Bosch process. Although high temperature (450–500 °C) and pressure (150–300 bar) are used to dissociate triple-bonded nitrogen and to maximize the ammonia formation, the efficiency of the Haber–Bosch process is limited to 10–15%. Moreover, the process accompanies high greenhouse gases emission since hydrogen is produced from natural gas. In order to overcome the drawbacks of the Haber-Bosch process, the electrochemical ammonia synthesis has been developed as…

Solar Hydrogen and Ammonia System Status
Presentation

Solar Hydrogen and Ammonia System Status

David Toyne

Further development results of the Raphael Schmuecker Memorial Solar Hydrogen and Ammonia prototype plant, discussing making of Nitrogen and Ammonia, the energy usage, and the general system efficiencies and output. We would also like to discuss our results of dyno testing the Hydrogen / Hydrogen & Ammonia tractor engine and further developments in ammonia fuel vaporization.

Using Renewable Energy to Produce NH3
Presentation

Using Renewable Energy to Produce NH3

Geoff Budd

Commercial production of Ammonia (NH3) is a large scale industrial process converting natural gas (or other fossil fuels) into gaseous hydrogen, which is catalytically reacted with nitrogen to form anhydrous liquid NH3. NH3 made from natural gas is responsible for approximately 5% of global natural gas consumption (around 2% of world energy). Hydrogen can be produced more simply and more sustainably by the electrolysis of water using renewable electricity. Thus decoupling NH3 production from fossil fuels and substantially decarbonising the process. This provides a means of utilising intermittent renewable electrical power to produce NH3 for use as a fertilizer, fuel…