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CCS - Carbon Capture and Storage
Transcript of CCS - Carbon Capture and Storage
via ... are captured, or ... and stored The CC(T)S
Chain: capture transport storage CCS fossil
fuels CO2 Is it worth the risk? General stuff We're going deeper underground... The prevailing technical hurdle Fossil fuels Carbon Hydrogen + Combustion air CO2 is part of flue gas
The separation of gases is difficult! Separation of gases is difficult! Flue gases
("the smoke") Pre-combustion Oxyfuel Post-combustion The bursting CO2 bubble, the greatest CCS concerned misconception ©2007 Pearson Media Labs and David C. Pearson Reserves (2000):
Coal: 210 years
Oil (conv. + unconv.): 70 years
Gas (conv. + unconv.): 160 years often compared to nuclear waste storage, though completely different underground gas deposits exist naturally CO2 is nontoxic (food industry) a natural carbon cycle exists after ca. 100 years CO2 can become solid highly qualified for centralized power production and large scale industrial processes
efficiency penalty transport Thou shall not pass through my backyard! Connecting production and storage site storage Distance = cost, efficiency
No particular technical challenge
BUT: highly dependent on public support ("NIMBY") "What if the bubble bursts??" highly dependent on public support
(remember the troll) ...in deep sponge-like
rock structures CCS A possible bridge towards a sustainable energy future? transient solution until ...?
why not use research capacity for CO2 free alternatives?
ethical to use finite resources? Some concerns...