US Patent 7322317 Heat-recovery boiler

Patent 7322317 was granted and assigned to Lurgi on January, 2008 by the United States Patent and Trademark Office.

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Patent Inventor Names

Christoph Erdmann0

Thomas Wurzel0

Ulrich Wagner0

Walter Boll0

Werner Röll0

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Patent 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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