Capture of Carbon Dioxide

CO₂ Capture in CCUS refers to the separation of CO₂ from a stream containing CO₂, CO₂ treatment and purification, and compression or liquefaction to the required level for transportation.

Types of CO₂ Capture

There are several types of capture, generally referred to by the inlet location of the CO₂ containing stream. There are two primary groups:

1. Power and Combustion-Related Capture
2. Non Combustion Capture

Types of CO₂ Capture - Power and Combustion

In power and combustion-related industries, there are three primary types of capture:

Types of Capture in Power and Combustion Related Industries

Type	Description
Post-Combustion Capture	Extracts CO2 from a stream after a combustion chamber, such as in a natural gas power plant.
Pre-Combustion Capture	Extracts CO2 from a stream before a combustion chamber, such as in a gasification power plant.
Oxy-Combustion Capture	Extracts CO2 from a stream after a combustion chamber with a specialised system which uses oxygen instead of combustion air.

Types of CO₂ Capture - Non-Combustion Capture

In non-combustion capture, there are two primary types of capture:

Types of Capture in Non-Combustion capture

Type	Description
Industrial Separation Capture	Extracts CO2 from a stream containing both CO2 and non-CO2 gases, with no combustion in the process stream up or downstream of the removal point.
Inherent Capture	Extracts CO2 from a stream containing primarily CO2, with no combustion in the process stream up or downstream of the removal point.

CO₂ Capture Technologies

A capture technology is a process that is used to extract CO₂ from a CO₂-containing stream.

Types of Capture Technologies

Technology	Description
Chemical Solvent	Description TBA
Physical Solvent	Description TBA
Solid Adsorbent	Description TBA
Membrane	Description TBA
Cryogenic Capture	Description TBA

Industries Where CO₂ Capture is Deployed

CO₂ Capture is already deployed as a part of operations in several industries, for more stream purification, CO₂ recovery, or for emissions mitigation. Table XXX shows the current distribution of known CCS and CCU projects from the Global CCS Institute's "Global Status of CCS Report 2025".

Industries with known CO₂ Capture Systems

Industry	Operational CCS Facilities (Number)	Operational Capacity (Mtpa of CO2)	In Development CCS Facilities (Number)	In Development Capacity (Mtpa of CO2)	Utilisation (Number)
Natural Gas Processing	XX	XX	XX	XX	XX
Hydrogen & Ammonia	XX	XX	XX	XX	XX
Coal Power	XX	XX	XX	XX	XX
Natural Gas Power	XX	XX	XX	XX	XX
Bioenergy Power	XX	XX	XX	XX	XX
Cement	XX	XX	XX	XX	XX
Ethanol, Biogas, and Biomass Fermentation	XX	XX	XX	XX	XX
Iron and Steel	XX	XX	XX	XX	XX
Waste to Energy	XX	XX	XX	XX	XX
Chemicals	XX	XX	XX	XX	XX
Pulp and Paper	XX	XX	XX	XX	XX
Oil Refining	XX	XX	XX	XX	XX
Direct Air Capture	XX	XX	XX	XX	XX