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* Analysis by: GLG Expert Contributor
* Analysis of: Carbon dioxide contamination possible even with sequestration
* Published at: www.powergenworldwide.com
Summary
The Duke University contributes additional siting parameters restricting the already macro-geologically suitable regions for CO2 burial. From an engineering and cost-effective viewpoint, why bury the collected CO2; promote alternates approaches for its productive use.
Analysis
The Duke University contributes additional siting parameters restricting the already macro-geologically suitable regions for CO2 burial. From an engineering and cost-effective viewpoint, why bury the collected CO2; promote alternates approaches for its productive use. An analogous situation occurred decades ago regarding the removal of Sulfur Dioxide [SO2]with slurries of lime or limestone. The resultant precipitate of sludge generated a rate of about one ton per minute posed a severe disposal problem. Rather than disposal of this material which expensive additives [as proposed by regulatory and research organizations] the private sector developed technology to convert this sludge into usable By-Product Gypsum. This approach should be applied to captured CO2.
Carbon Capture Sequestration [CCS] envisions capturing Carbon Dioxide CO2 and burying it within suitable geological formations. Concepts based upon Oil Industrys decades of experience injecting CO2 to enhanced pumping deep oil deposits i.e. Enriched Oil Recovery [EOR]. Ideally if a new coal fired power plant was located in a geological region containing deep oil deposits the application of CCS with EOR represents demonstrated technology. The alliance of General Electric, Bechtel and Schlumberge represents a turn-key package implementing Integrated Gasification Combined Cycle [IGCC]with EOR.
Unfortunately new coal fired plants may not all be located within the optimal geological conditions for EOR. Thus geological burial represents the current thinking a demonstration programs e.g. AEP Mountainside W VA. Similarly the proposed Future Gen II in IL would also demonstrate burial of CO2. Governmental Agencies have identified suitable geological formations for CO2 burial
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