Cyclic reheat materials evaluation - Part 3

Journal Article · Wed Apr 01 04:00:00 EST 1987 · Mater. Performance; (United States)

OSTI ID:6439665

Krause, H H; Ireland, P A; Charles, G A; Rhudy, R G; Syrett, B C

A cyclic reheat system for a wet flue gas desulfurization system extracts heat from the inlet flue gas and transfers this heat to the outlet flue gas. One method of achieving this reheat uses tube-type heat exchangers in the inlet and outlet gas streams with a fluid (e.g.,water) circulated between them. For plants burning high-sulfur coal, questions of materials selection and cleaning methods of the inlet heat exchanger exist because of the potential for acid condensation. An inlet gas heat exchanger test apparatus was built and installed on a slipstream taken after the precipitator of a high-sulfur, coal-fired power plant. Results obtained from the first 3061 h of exposure indicated low corrosion rates for several stainless steels and that a water wash prevented solids buildup on the heat exchanger tubes.

• Research Organization: Battelle Memorial Institute, 505 King Ave., Columbus, OH 43201
• OSTI ID: 6439665
• Journal Information: Mater. Performance; (United States), Journal Name: Mater. Performance; (United States) Vol. 26:4; ISSN MTPFB
• Country of Publication: United States
• Language: English

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CHEMICAL REACTIONS
CHROMIUM ALLOYS
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ENERGY RECOVERY
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ENERGY TRANSFER
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WASTE HEAT UTILIZATION
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WASTES
WATER