CFD modeling for parametric study on co-gasification of coal- biomass blend in a 300MW e Shell Coal Gasification Process (SCGP) type gasifier Sang Shin Park, Hyo Jae Jeong, and Jungho Hwang Department of Mechanical Engineering, Yonsei University, Seoul, Korea 1
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CFD modeling for parametric study on co-gasification of ... · CFD modeling for parametric study on co-gasification of coal- biomass blend in a 300MW e Shell Coal Gasification Process
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CFD modeling for parametric
study on co-gasification of coal-
biomass blend in a 300MWe Shell
Coal Gasification Process (SCGP)
type gasifier
Sang Shin Park, Hyo Jae Jeong, and Jungho Hwang
Department of Mechanical Engineering,
Yonsei University,
Seoul, Korea 1
Coal gasifier in Korea
In Korea, a national project for constructing a
300MWe IGCC demonstration plant has been going
on (Scheduled to finish on November, 2015).
The Korea Western-Power Company and DOOSAN
Heavy Industries & Construction Company in Korea
selected a Shell coal gasification process (SCGP)
type gasifier.
2
3
Shell Coal Gasification Process (SCGP) type gasifier
• High carbon conversion
(nearly 99%).
• Simple mechanical design.
• Short residence time
(average ~ 10 seconds)
• High operating temperature
(about 1800K).
• Slag as a by-product flows
out of the bottom into a
water bath or slag bath
4
Our group
Carried out a 3D full scale CFD analysis of the Korea
SCGP type gasifier using ANSIS Fluent.
The results were disclosed with a paper submitted
to Energy & Fuels.
Previously, we published a paper on CFD analysis of
the E-Gas gasifier.
Jeong et al. “CFD modeling for coal size effect on coal gasification in a
two-stage commercial entrained-bed gasifier with an improved char
gasification model” Applied Energy 123 (2014) 29–36
5
Coal blended with biomass
What are advantages of coal blended with biomass?
• High cold gas efficiency (CGE) and high caloric value of syngas1).
• Free CO2 emission trading2).
• Cost reduction of fuel.
In Magnum, Netherlands, a coal-biomass co-gasifier
plant has been under construction for IGCC power
generation.
In the Nuon Magnum IGCC power plant, SCGP type
gasifier is used. Ref. 1) Henry et al. “Case studies for biomass/coal co-gasification in IGCC applications”, Pro. of ASME Turbo Expo
(Vancouver, Canada) 2011 1-15.
2) Pinto et al. “Effect of experimental conditions on co-gasification of coal, biomass and plastics wastes with
air/steam mixtures in a fluidized bed system”, Fuel Vol.82 2003 1967–1976.