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  4. Reducing carbon dioxide emissions by gas turbine processes | [CO2-Reduktion bei gasturbinen-prozessen]
 
research article

Reducing carbon dioxide emissions by gas turbine processes | [CO2-Reduktion bei gasturbinen-prozessen]

Jansohn, P.
•
Griffin, T.
•
Mantzaras, I.
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2007
Chemie-Ingenieur-Technik

Selective process modifications were considered among the possible process variations for carbon dioxide separation in natural gas fired combined gas and steam turbine power plants that differ greatly among themselves in terms of additional expense (efficiency losses, costs). The modifications considered effect an enrichment of the carbon dioxide content in the flue gas and a separation made easier (with various sorption media such as ammonia) instead of with amines (monoethanol amine (MEA), diethanolamine (DEA), and methyldiethanolamine (MDEA). A carbon dioxide enrichment through exhaust gas recirculation coupled with a reduction of the oxygen content provides the challenge, to guarantee the combustion also under conditions with greater dilution (with "inert" gas components such as carbon dioxide and water) and low amounts of free oxygen and make the emissions of undesired byproducts such as NOx and CO extremely low (< 10 ppm). Through catalytic supported processes (in-situ partial catalytic oxidation) and through oxygen enrichment the stability of the release of heat at the same time can be maintained. It is to be expected that power plants running on, for example, natural gas will increase in efficiency and decrease in carbon dioxide emissions. The additional measures are to be made with little additional energy expense (efficiency loss of < 5%) and moderate additional costs of < 30 euros per tonne of separated carbon dioxide.

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Type
research article
DOI
10.1002/cite.200750057
Author(s)
Jansohn, P.
Griffin, T.
Mantzaras, I.
Clemens, F.
Marechal, F.  
Date Issued

2007

Published in
Chemie-Ingenieur-Technik
Volume

79

Issue

9

Article Number

1324

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LENI  
SCI-STI-FM  
Available on Infoscience
January 28, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/46295
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