New Coal Power Plants

I heard on the radio that utilities building new coal fired plants
generally prefer conventional steam plants rather than the newer design
where the coal is gasified and then burned in a gas turbine with steam
bottoming cycle. I find this somewhat surprising as the gasification
plants have a thermal efficiency of 45 percent versus 30-35 percent for
steam plants, and gasification plants have been operating successfully
in this country for over a decade. Are the costs of a gasification
system so great as to offset the increase in efficiency?

Thank you,
Peter Wezeman
anti-social Darwinist

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Relevant Pages

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    ... generally prefer conventional steam plants rather than the newer design ... I find this somewhat surprising as the gasification ...
    (sci.energy)
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    ... The aviation fuel was produced in 7 bergius hydrogenation plants. ... This was not a coal gasification followed by synthesis fischer-tropsch ...
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  • Re: New Coal Power Plants
    ... I heard on the radio that utilities building new coal fired plants ... generally prefer conventional steam plants rather than the newer design ... I find this somewhat surprising as the gasification ... system so great as to offset the increase in efficiency? ...
    (sci.energy)
  • Re: New Coal Power Plants
    ... generally prefer conventional steam plants rather than the newer design ... I find this somewhat surprising as the gasification ... Does this 45% count just burning the gas for electricity, or does it include the whole path from coal to electricity? ...
    (sci.energy)
  • Re: New Coal Power Plants
    ... generally prefer conventional steam plants rather than the newer design ... where the coal is gasified and then burned in a gas turbine with steam ... I find this somewhat surprising as the gasification ... Does this 45% count just burning the gas for electricity, ...
    (sci.energy)
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