|  | |
The Capture and Sequestration of Carbon Dioxide | | |
Pre-combustion (Hydrogen)

Coal-fired power plant (IGCC) Pre-combustion
Advantages
-
Generally higher CO2 concentration than for post-combustion capture
-
No need for powerful solvent
-
Higher pressure
-
More compact equipment
-
Higher driving force for CO2 separation
Disadvantages
-
Fuel processing is needed
-
Partially oxidation
-
Needed anyway for coal and oil to remove impurities
-
Shift conversion of fuel gas to H2 and CO2
-
Involve more radical change in power plants design
|