Heat-recovery boiler
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United States of America Patent
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Jan 29, 2008
Grant Date -
Apr 13, 2006
app pub date -
Feb 7, 2004
filing date -
Mar 20, 2003
priority date (Note) -
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Abstract
The invention relates to a heat-recovery boiler (3) consisting of a tube bundle heat exchanger (7) which is incorporated into a pressure vessel (2) downstream of a gasification device. Displacement bodies (9) are inserted into pipes which are flowed around by hot process gas. According to said invention, in order to avoid corrosion problems like metal dusting, said displacement bodies (9) are made of graphite.
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