Method for Treating Oil Refinery Equipment for Pyrophoric Iron Sulfide Using Ozonated Water
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United States of America Patent
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Sep 3, 2015
app pub date -
Mar 3, 2015
filing date -
Mar 3, 2014
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Abstract
Pyrophoric material such as iron sulfide is frequently found in refinery equipment. When the equipment is opened to the atmosphere for maintenance, an exothermic reaction may take place that can cause catastrophic damage. A process for treating pyrophoric material uses ozonated water to oxidize iron sulfide to iron oxide. The heat produced by this exothermic reaction is absorbed by the ozonated water.
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