...The key learning from Phase I of the Sour Water JIP was that H₂S partial pressure proved to be the third key parameter that must be considered when assessing the potential for NH₄HS corrosion in alkaline sour water systems. The influence of these three primary key parameters...

...Abstract This paper summarizes results of Phase II of a joint industry program (JIP) that addressed ammonium bisulfide (NH₄HS) corrosion. This phase of the program was focused on NH₃-dominated sour waters typically found in refinery services such as the overhead systems...

...The software system input interface is shown in Figure 1 . The environment section provides input for the total pressure, H₂S content, temperature, NH₄HS concentration, oil (hydrocarbon) type, chemical type and dosage. Abstract The Sour Water Joint Industry Program (JIP) has...

...K_p factors were calculated and approached 0.25. This suggested moderate corrosion would be expected based on the existing industry K_p guidelines. Velocities approaching 80 ft/s (24 m/s), as well as an NH₄HS concentration of 8 wt%, suggested the likelihood for severe...

... (1) Formerly with InterCorr International, Inc. (2) Acquired InterCorr International, Inc. Abstract This paper summarizes results of a joint industry program (JIP) to address ammonium bisulfide (NH₄HS) corrosion in H₂S-dominated alkaline sour waters typically found...

... the inhibition is continuously effective. Another important application of PEC is the extension of runtime of an installation nearing its end of life despite severe corrosion problems. An example of such a case is described below. APPLICATION EXAMPLE AT A HYDROCRACKER UNIT Ammonium bisulfide (NH₄HS...

... (e.g., NH₄HS concentration), etc. Process Monitoring Abstract This paper describes a systematic approach that is used to diagnose and mitigate corrosion problems in hydroprocessing unit reactor effluent air cooler systems. The methodology is based on an extensive evaluation...