Concentrating solar thermal (CST) in the Bayer Alumina Process.
Our researchers have found that introducing concentrating solar thermal (CST) technologies to the Bayer alumina process could enable a 29-45% solar share. This would displace the need for natural gas and decrease operating fuel costs. The best part is that:
- CST can be integrated within the existing refineries and existing fuel supply systems to achieve continuous operation continuously– vital for 24/7 industries
- plant equipment will not need to be altered extensively.
The production of calcined alumina in Australia with the Bayer refining process:
- generates $5.3 billion per year
- consumes 160 PJ of natural gas per year
- is responsible for ~40% of Australia’s CO2 emissions from minerals processing.
17- 19 September 2018 - Zero Carbon High Temperature Mineral Processing.
The Solar Bayer Alumina Project team confirms that solar could reduce the need for natural gas in the calcination process in alumina refineries.