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This Guide was written for Plant Operators, Process Engineers, Metallurgists, Maintenance Engineers, Inspectors, and all others who deal with crude unit corrosion and fouling issues on a daily basis. The book is based on the author’s experience dealing with many crude units and also reflects the Industry’s consensus experiences reported at past meetings of the NACE STG34 Committee on Petroleum Refining and Gas Processing and the API Subcommittee on Corrosion and Materials. Diluent recovery units (DRUs) and vacuum distillation units (VDUs) of bitumen upgraders are now included in the discussions where appropriate.
While process simulation and RBIM software has been very helpful for ranking critical components for future inspection and maintenance efforts, expertise is still required to facilitate reliable data input and assessment. This book presents the most important aspects of corrosion and fouling control in the atmospheric and vacuum sections of crude units and the corresponding sections in bitumen upgraders. Various chapters deal with metallurgy and corrosion monitoring, crude tank settling and desalting, caustic injection, preheat exchanger fouling, sulfidic and naphthenic acid corrosion in fired heaters, transfer lines, and distillation columns. Other chapters cover corrosion and fouling by inorganic and organic chlorides in the top of columns and in overhead systems and various issues with neutralizer, corrosion inhibitor, and water injection systems. Important reports, research papers, and monographs published during the past 60 years or so are cited in the text.
2016 by NACE International