Corrosion survey were covered about forty industrial plants which were deeply related to corrosion problem. This study was discussed them under six sub-divisions, such as fertilizer plants & oil refinery, thermal power plants, water plants, general chemical plants, fiber plants & paper mills, and shipyard, port, and railroad facilities. Corrosion problem in fertilizer plants & oil refinery were considered as the most importance. Generally main corrosion problems were: 1) water treatments in pipelines, heat exchangers, and boilers etc., 2) corrosion problem by fuels such as Banker C and coal etc., and 3) underground pipe lines by low soil resistivity, salt contents, and biological attack etc. |
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