Energy Waste Roadblock project identifies multiple commercial applications for captured energy waste.

The challenge

Energy waste

Energy generation creates considerable waste output (particularly carbon dioxide – CO2) which has significant negative environmental impacts. Annual global emissions of CO2 have increased by approximately 80 per cent since 1970, largely due to our increasing and unabated dependence on fossil fuels for energy generation. As atmospheric concentrations of this ubiquitous greenhouse gas have grown, so too has international concern of the effects of CO2 in the atmosphere, making this issue one of the most critical environmental concerns about our age.

While the effects of the atmospheric change have now been well established, technologies for reducing our dependence on fossil fuels generating CO2 have not been developed rapidly enough to avoid significant changes to our climate and oceans.

Substantial benefit would be realised from the development of new materials and processes that could mitigate climate change by selectively removing CO2 from waste gas streams including from industries such as coal-burning power stations.

Our response

Metal Organic Frameworks

The SIEF-funded Energy Waste Roadblock project initially aimed to develop new materials and processes for the capture and utilisation of CO2, especially new Metal-Organic Framework materials (MOFs) that could be used to separate CO2 efficiently and cost-effectively from the exhaust gas of a coal or gas burning power station. MOFs are one of the most promising class of materials for this purpose as their properties make them ideal candidates for gas storage, separation, and catalysis. The project also has a clear focus on the use of MOFs in industrial applications.

This project involves a range of disciplines from theoretical chemistry (molecular modelling) to chemical engineering. The project's collaborators are drawn from multidisciplinary research teams from seven institutions; The University of Sydney, The University of Melbourne, Monash University, The University of New South Wales, The University of Adelaide, CSIRO and ANSTO. This depth of expertise has also been augmented by a dozen early-career researchers and over 20 postgraduate research students.

Diagram of green, red and blue blue molecules interacting with a MOF represented by a rough-surfaced sphere inside a cube.

Diagram depicting molecules flowing through MOFs, a special material that can capture or allow certain sized molecules to pass through.

In this case larger green molecules are excluded from the MOF and don't interact with it. Smaller red molecules interact with the MOF and are changed into blue molecules by it.

Made of metals joined to each other by organic linkers, MOFs are crystalline powders full of holes. These molecular-sized holes can store, separate, release or protect just about anything.

While the research identified that the CO2 capture process currently remains uneconomic, a number of other important commercialisation opportunities emerged through the research process. Substantial contribution was also made to the fundamental science of MOFs that has catalysed further international research in this field.

The research team are now working with partners in the aeronautical, defence, and chemical sectors to further advance the commercialisation of their research in areas such as anti-corrosive coatings, toxic gas filters, breathing apparatuses, the controlled release of enzymes, and enhanced plastic piping.

The results

Effective capture and use of energy waste

The impact

Multiple avenues for commercialisation of the technology which resulted from this Research Project are now being pursued with partner organisations, thus realising both significant economic and environmental benefits from the effective capture and use of energy waste.

Based on conservative valuations, the net present value of the Energy Waste project is $144.3 million. The project has a benefit-cost ratio of almost 211.

Download Printable version: Ensuring the effective capture and use of energy waste [pdf · 1mb].

Download the impact evaluation report .

Find more SIEF toward impact fliers .

  1. ACIL Allen Consulting. 2016. SIEF Impact Case Studies. Canberra: ACIL Allen. 

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