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98321 HAZARDOUS MATERIAL DECONTAMINATION WITH POTASSIUM PERMANGANATE FOR REFINERY TURNAROUNDS

Product Number: 51300-98321-SG
ISBN: 98321 1998 CP
Author: Philip A. Vella, Jessica L. Nickerson
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In the refining of oil, process and storage equipment commonly become contaminated with pyrophoric iron sulfide and various odor causing materials such as hydrogen sulfide and mercaptans. Traditionally, refiners have used mechanical or chemical methods for removing and controlling these contaminates. With an increased focus on safety, efficiency, and the environment, the methods for equipment cleaning are changing. Chemical oxidation (e.g. the use of potassium permanganate, hydrogen peroxide, sodium hypochlorite or “bleach”) is one technique that is being used for the removal of these compounds. This paper will compare the effects of chemical oxidation, especially potassium permanganate, on the safe removal of pyrophoric iron sulfide, process corrosion issues with oxidants, and the safety aspects of chemical oxidation. Keywords: chemical oxidation, corrosion, decontamination, hydrogen peroxide, odors, potassium permanganate, pyrophoric iron sulfide, refinery, sodium hypochlorite
In the refining of oil, process and storage equipment commonly become contaminated with pyrophoric iron sulfide and various odor causing materials such as hydrogen sulfide and mercaptans. Traditionally, refiners have used mechanical or chemical methods for removing and controlling these contaminates. With an increased focus on safety, efficiency, and the environment, the methods for equipment cleaning are changing. Chemical oxidation (e.g. the use of potassium permanganate, hydrogen peroxide, sodium hypochlorite or “bleach”) is one technique that is being used for the removal of these compounds. This paper will compare the effects of chemical oxidation, especially potassium permanganate, on the safe removal of pyrophoric iron sulfide, process corrosion issues with oxidants, and the safety aspects of chemical oxidation. Keywords: chemical oxidation, corrosion, decontamination, hydrogen peroxide, odors, potassium permanganate, pyrophoric iron sulfide, refinery, sodium hypochlorite
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