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Overview

WHAT IS CARBON CAPTURE AND STORAGE?

Carbon dioxide (CO2) is emitted when fuels such as coal, oil and natural gas are used. Carbon capture and storage (CCS) is a process used to prevent these COemissions from entering the atmosphere and contributing to climate change.

CCS captures CO2 at a power station or industrial facility such as a steel, LNG or cement plant. The captured COis then stored safely and permanently in deep underground geological structures, or by other physical, chemical or biological means.

CCS also mimics natural examples where gases, including CO2, have been trapped in deep geological structures for millions of years.

Carbon capture and storage is focused on stationary sources as it is not yet possible to capture CO2 from mobile sources such as cars, trucks and aeroplanes.

HOW DOES THE CSS PROCESS WORK?

CCS is a proven technology which includes four stages (click the numbers for more detail):

Is the technology proven?

Yes. CCS is already being used successfully across the world. CO2 capture, transport and storage technologies are used in oil and gas sector projects in Canada (Weyburn-Midale) and Norway (Sleipner), where COhas been injected since 1996 and 2000 respectively. Two coal sector CCS projects have commenced operation recently: Boundary Dam (Canada, 2014) and Petra Nova (USA, 2017).

Carbon capture and storage in Australia

There is big potential for CCS to be used commercially in Australia. When it commences CO2 injection, the Gorgon Project in Western Australia will be the largest project of its type in the world. Other Australian projects have successfully demonstrated CCS technology: the Callide Oxyfuel project capturing CO2 at an operating power station in Queensland, and the CO2CRC injecting 65,000 tonnes of CO2 into a depleted gas field in Victoria’s Otway Ranges.

Fast facts

CCS can achieve big emissions reductions from coal-fired power stations.

CCS is a proven technology used in many parts of the world.

The storage of CO2 is safe and permanent.

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