[LINK] clean coal

[David Boxall]

At Mon, 23 Feb 2009 07:52:25 GMT stephen at melbpc.org.au wrote:
> Sunday, February 22, 2009
>
> Ritter, fellow governors ask Obama to support 'clean coal' technologies
> Denver Business Journal
>
>  http://www.bizjournals.com/denver/stories/2009/02/16/daily69.html
> ...
In post-combustion technologies, the challenge is in capturing the 
carbon dioxide.  As I understand it, the sheer volume of flue gases 
defeats current technologies.  The best I've seen catches only 2% of the 
CO2.

The publicity speaks grandly of (as I remember) 84% reductions but they 
seem always to concentrate on storage, ignoring capture.  Account for 
the energy cost of capture and storage and 'clean coal' starts to look 
very dirty indeed.
 
-- 
David Boxall                         | ignorance more frequently
                                     | begets confidence than does
                                     | knowledge
                                     |--Charles Darwin (introduction
                                     |  to 'The Descent of Man' 1871)