[Stoves] Lignite in Mississippi

[Crispin Pemberton-Pigott]

Many thanks William

 

They note:

"With TRIGT, the IGCC facility in Kemper County will turn Mississippi
lignite into gas while cleaning emissions of sulfur dioxide, nitrogen oxides
and mercury to near natural-gas levels. It also will produce 65 percent less
carbon dioxide emissions than the current pulverized coal plants."

 

And I note that they are in fact using a coal gasification process and
calculating their CO2 emissions on a kW generated basis. It is a far better
system efficiency than a single step process but it certainly comes at a
cost. There was initial talk about putting one into Ulaanbaatar as they 520
MW plant is getting close to capacity. It is pretty expensive.

 

The inherent emissions of mercury etc are already removable. I note they are
talking at Southern of carbon capture. Perhaps someone will pay them to do
that too.

 

Regards

Crispin

 

++++++=

 

Crispin,
 
This plant is a scaled up version of an existing process.  More info on the
Lignite plant at:
http://www.mississippipower.com/kemper/TRIGTechnology.asp
 
Additional information Links on this site...
http://sequestration.mit.edu/tools/projects/kemper.html
 
William Hatcher
 

  _____  

From: crispinpigott at gmail.com
To: stoves at lists.bioenergylists.org
Date: Wed, 14 Sep 2011 14:56:31 -0400
Subject: [Stoves] Lignite in Mississippi

Dear Friends

 

Energy Company Southern reports they have patented and licensed a lignite
burning power plant design that 'burns cleaner' than natural gas. It has
been licensed to China. It was developed for a Mississippi-based coal
deposit. The Boss man (CNBC interview) did not define 'cleaner'.

 

My suspicion is that it is a fuel composition-related achievement. The H2
content of the fuel must be high. It also must be a statement conditioned on
the combustion devices being defined in order to make the comparison.

 

I am happy to hear that they have done at a large scale what we have done on
a micro scale. I am willing to bet it is a combined cycle gasification mode
power plant. The increased efficiency reduces the emissions per kW output.

 

Regards

Crispin

 


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