One of only a handful of low-emission coal projects in the world, the Callide Oxyfuel Project made a significant contribution to the international carbon capture and storage knowledge bank. The results from the project can be applied to future low-emission projects worldwide aimed at producing cleaner and affordable electricity from fossil fuels. The project achieved:
- 14,800 hours of total generation
- 10,200 hours of oxyfiring operation
- 5,600 hours of CO2 capture
- 320,000 tonnes of coal burned.
A viable technology
The project has helped create pathways for the design and construction of larger-scale oxyfuel combustion plants with carbon capture, as both ‘bolt-on’ technology to existing plant or as new-build plant, offering exciting future possibilities. When linked with geological carbon storage, this technology has the potential to reduce CO2 emissions from coal fired power stations by around 90 per cent, providing a realistic technology option for low-emission electricity generation. This technology is now ready to be scaled up and is available to be applied to commercial-scale, capture-ready power plants.
Contribution to global knowledge
In 2016/17, the joint venture partners consolidated the learnings and data from the demonstration phase of the project in a technical manual, formalised its ownership of four international patents for the oxyfuel technology, and signed a manufacturing licence agreement with IHI Corporation (Japan) to capture royalty benefits from future commercialisation of oxyfuel technology.
Significantly, the joint venture progressed oxyfuel technology from combustion of 100 kg of coal/hour in a pilot-scale test furnace in Japan to 20,000 kg of coal/hour in a modified 30 MW boiler at Callide A Power Station. Over the demonstration phase of the project, some 300 GWh of electricity were produced and dispatched, powering the equivalent of some 10,000 Queensland homes. The next scale-up would be to full commercial scale (350 MW or larger).
Results and learnings from the project have been published either directly, or through its association with research organisations such as Australian National Low Emissions Coal (ANLEC) and the Global CCS Institute.