Corrosion and erosion during 2 years of intermittent operation of the first American coal-hydrogenation plant are described as well as solutions and improvements developed. Isolated cases of localized corrosion fatigue, caustic embrittlement, and pitting are described. Proper alloy-steel selection has minimized the effect of hydrogen attack in high-pressure equipment except where design temperature has been exceeded. High-pressure lines and valves handling oil-solid mixtures containing absorbed gases have evidenced greatest erosion rates.
Issue Section:Research Papers
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