MaGIC™ stands for “Mild airblown Gasification Integrated
Combined Cycle.”, in which “Mild gasification” refers to the
gasification technology. The diagram shows the equipment
added when MaGIC is used to increase the generating
capacity of an existing coal plant.
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Repowering existing coal plants
The preferred application for MaGIC is to
repower existing coal plants…. converting them
into IGCCs by adding the equipment shown on
the next page.
MaGIC’s small footprint enables it to fit on
buildings obsoleted by repowering (red arrow –
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1. Repowering for added capacity
When additional generating capacity is needed, MaGIC
(in blue) is added to the existing coal plant (in red).
Because MaGIC includes a gas turbine, the plant’s
capacity may be increased by as much as 200% of the
original rating, depending on the size of the turbine
If the existing steam plant is relatively new, the existing
boiler is used for combined-cycle heat recovery, as
repowering with MaGIC is uneconomic otherwise. The
principal change required is to relocate the steam-pipe
connections, a relatively minor modification.
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2. Restoring aging coal plants
**HRSG – “Heat Recovery Steam Generator”
Coal plants are retired when their boilers become
uneconomic to maintain.
Replacing the boilers with HRSGs** enables
MaGIC to as much as double the plant’s life.
New steam turbines are also installed during
repowering to increase plant efficiency.
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3. New installations and gas conversions.
Shown: a gas-fired combined-cycle power plant
MaGIC can be used for new installations where
repowering isn’t an option.
The technology can also be used to repower gas
plants if coal is enough cheaper than gas, and
there is enough space at the site for the coal
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