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Read MoreSquaring the Circle on Coal – Carbon Capture (CCS)
By Chris Hodrien
2008 Claverton Conference Paper Synopsis: Huge global reserves of coal remain, well-distributed among relatively stable supplier nations, and its production is increasing. With the recent rapid increases in oil and gas prices, especially in the UK, it is again becoming the minimum cost option for power generation and heavy industry. Large thermal (steam turbine) powerplant is also the global utilities’ preferred generating option because of its predictability/reliability, operational characteristics, retrofit to existing powerplant sites and “fit’ to the existing grid structure.
Read MoreIGCC plus CCS: An Objective Analysis
By F.Starr
2008 Conference Paper Synopsis: The paper briefly describes the technology of conventional IGCCs for electricity generation and shows how such “precombustion plants” need to be modified to capture CO2. The main difference is that the raw gas from the gasifier has to be treated to produce a fuel gas containing more than 90% hydrogen. This adds to the complexity of the plant. But the main reason why the large scale construction of such plants is unlikely in the near future is the absence of a large domestic and industrial market for hydrogen. The paper therefore advocates the production of substitute natural gas, with CO2 capture, as being a more realistic option which can use the existing infrastructure
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