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Article

Safety of Ammonia Energy: First Up, the Maritime Use Case?

Stephen H. Crolius November 07, 2019

ANNUAL REVIEW 2019: Ammonia. A hazardous chemical, no doubt. But is it too hazardous to use as an energy vector? This is a legitimate question that must be addressed as other aspects of the ammonia energy concept advance. It is also a question whose unique context can be evoked with two other questions: Haven’t the safety issues already been identified and resolved over the last 100 years of widespread agricultural and industrial use? And even if they have, how will the general public react when proposals for expanded ammonia infrastructure suddenly appear? The earliest tip of this particular iceberg came into view this year when the Dutch naval architecture firm C-Job released Safe and Effective Application of Ammonia as a Marine Fuel.

Article

Technology Advances for Blue Hydrogen and Blue Ammonia

Stephen H. Crolius November 01, 2019

ANNUAL REVIEW 2019: Blue hydrogen – defined as the version of the element whose production involves carbon capture and sequestration (CCS) – represents an alluring prospect for the energy transition. The primary “blue” feedstocks, natural gas and coal, currently set the low-cost benchmarks for storable energy commodities. With the addition of CCS, they are expected to set the low-cost benchmarks for low-carbon storable energy commodities. Blue ammonia is very much included in this frame of reference since CCS could be applied to the CO2 waste stream from the Haber-Bosch process. But neither blue hydrogen nor blue ammonia are sure things; a variety of technical, financial, regulatory, and social issues could stand in the way of their widespread adoption. But work on new technologies that have the potential to ease the way for blue products has come increasingly into view over the last twelve months.

Article

Ammonia in the Mix as an Industrial Energy Source

Stephen H. Crolius October 25, 2019

ANNUAL REVIEW 2019: The generation of heat for industrial processes accounts for approximately 10% of global greenhouse gas emissions – which means that finding ways to eliminate this climate footprint is among the pressing technology tasks on our societal to-do list. Developments over the last 12 months suggest that ammonia could play an important role in meeting this challenge.

Article

Ammonia Energy Mainstreaming Expands to Governments

Stephen H. Crolius October 25, 2019

ANNUAL REVIEW 2019: An item in the last Annual Review described an upwelling of attention for ammonia energy from mainstream media outlets. Over the last 12 months, the process of 'mainstreaming' has started to spread to another important constituency: governments.

Article

Government Investments in Hydrogen: How Does Your Country Compare?

Stephen H. Crolius October 11, 2019

On September 3, the British renewable-energy news portal reNEWS.BIZ ran a story with an intriguing headline: “Scotland launches £3bn green project portfolio.” At first glance, that number (which equates to USD $3.7 billion) looks out of scale with Scotland’s relatively tiny population of 5.5 million. Close reading reveals that the £3 billion is not the amount that will be invested by the Scottish government, but rather the value of the “investment portfolio” of green businesses the program is intended to galvanize over the next three years. But still one wonders, how does £3 billion stack up against other national programs aimed at supporting the sustainability transition?

Article

Israeli Group Develops New Electrolysis Technology

Stephen H. Crolius October 08, 2019

Last month a group of researchers from the Technion Israel Institute of Technology published a paper, “Decoupled hydrogen and oxygen evolution by a two-step electrochemical–chemical cycle for efficient overall water splitting,” in the journal Nature Energy. The key word in the title is “efficient.” In a September 15 Technion press release, the researchers state that their technology “facilitates an unprecedented energetic efficiency of 98.7% in the production of hydrogen from water.” Applied to the appropriate use case, the technology could lead to a major improvement in green ammonia’s ability to compete with brown ammonia and other low-carbon energy carriers.

Article

Ammonia Featured in South Australia's Hydrogen Action Plan

Stephen H. Crolius September 26, 2019

The Australian state of South Australia took another step into the hydrogen future this week when it unveiled its Hydrogen Action Plan at the International Conference on Hydrogen Safety in Adelaide. The heart of the Action Plan consists of the practical measures that governments undertake in areas such as infrastructure, workforce, and regulatory framework development. Zoom out, though, and it is clear that fostering a major export position in green hydrogen is first among equals in the Action Plan's priorities. And this being the case, it is no surprise that ammonia is singled out for special attention.

Article

Hydrogen Prioritized in New ARENA Investment Plan

Stephen H. Crolius September 19, 2019

On September 11, the Australian Renewable Energy Agency (ARENA) issued its 2019 Investment Plan. The theme of the accompanying press release is “sharpening our focus,” and indeed the agency articulates just three investment priorities: “integrating renewables into the electricity system;” “accelerating the growth of a hydrogen industry;” and “supporting industry to reduce emissions.” The prioritization of hydrogen – and with it, ammonia as a possible hydrogen carrier – is a new development for ARENA.

Article

IHI Breaks Ground on Hydrogen Research Facility

Stephen H. Crolius September 05, 2019

Japanese capital goods manufacturer IHI Corporation announced last month that it has started construction of a 1,000 square-meter hydrogen research facility in Fukushima Prefecture. The facility will be an addition to IHI’s Green Energy Center in Soma City which was launched in 2018. One of the Center’s original focuses is the production steps of the green hydrogen supply chain using solar electricity to power developmental electrolyzers. The new facility will focus on hydrogen carriers, including ammonia and methane (via “methanation” of carbon dioxide), that can be used in the logistics steps of the supply chain.

Article

The Case for Giving Direct Ammonia Fuels Cells a Shot

Stephen H. Crolius August 22, 2019

The Center for Catalytic Science and Technology (CCST) at the University of Delaware has made new strides in the development of a direct ammonia fuel cell (DAFC) suitable for use in transportation applications. The progress is reported in “An Efficient Direct Ammonia Fuel Cell for Affordable Carbon-Neutral Transportation,” a paper published last month by Yun Zhao and six coauthors in the journal Joule. The paper gives an impressive account of CCST’s technical advances; and it makes a distinctly compelling case for the relevance of CCST’s work on DAFCs. In the latter regard, the authors find that ammonia has the “lowest source-to-tank energy cost by a significant margin” relative to other fuels that can be derived from renewably generated electricity. It is in society’s interest, they strongly imply, to give DAFC technology a chance to compete with hydrogen-based fuel cells in automotive applications.