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Low temperature corrosion in domestic refuse boilers monitored with cooled corrosion probes and test heat exchangers
Author(s) -
Jansen Piet
Publication year - 1989
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.19890400306
Subject(s) - corrosion , dew point , flue gas , boiler (water heating) , metallurgy , materials science , heat exchanger , high temperature corrosion , waste management , physics , engineering , thermodynamics , meteorology
Abstract Corrosion properties of materials for utilizing of flue gas energy by cooling the gas below the acid dew point have been studied with cooled corrosion probes. The U‐tube corrosion probe is found to be a reliable method where tests can be done in the actual plant environment. Results from one domestic refuse boiler plant with severe low temperature corrosion problems are reported and the results described indicating a minimum temperature of 75°C to avoid corrosion. Another set of results is reported with flue gas cleaning and cooling in an experimental heat exchanger. Unalloyed steel is found to show the same level of corrosion in both raw uncleaned and cleaned flue gas. AISI 316 and 254 SMO stainless steels have shown high corrosion rates in the raw gas but a satisfactory resistance in the cleaned gas.