Neutralization as a Means of Controlling Corrosion of Refinery Equipment

Camp, E. Q.; Phillips, Cecil

doi:10.5006/0010-9312-6.2.39

Cited by 7 publications

(2 citation statements)

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“…[7][8][9][10][11][12][13][14][15][16] Sustained average rates of 450 mpy (11.4 mm/y) were measured in neutral, 1 mM H 2 S solutions. Sustained average rates in neutral, 10 mM H 2 S solutions were measured at 300 mpy (7.6 mm/y).…”

Section: Discussionmentioning

confidence: 99%

Corrosion in an Aqueous Hydrogen Sulfide, Ammonia, and Oxygen System

Schutt¹,

Rhodes²

1996

CORROSION

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Rotating cylinder experiments demonstrated that corrosion rates of steel exposed to oxygenated aqueous solutions containing hydrogen sulfide (H 2 S) and ammonia (NH 3 ) were dependent upon pH, the presence of oxygen (O 2 ), H 2 S concentration, and flow. Corrosion was more severe than expected based upon a review of published reports considering systems at relatively low ammonium hydrosulfide (NH 4 HS) concentrations and above pH 6. Dependence of carbon steel (CS) corrosion rates on pH and the impact of O 2 was strong, but only prior to reaction between H 2 S and O 2 . The influence of H 2 S concentration was unexpected in that neutral, 1 mM solutions were more corrosive than neutral, 10 mM solutions in short-term tests and on a sustained basis.

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Section: Discussionmentioning

confidence: 99%

Corrosion in an Aqueous Hydrogen Sulfide, Ammonia, and Oxygen System

Schutt¹,

Rhodes²

1996

CORROSION

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“…The neutralizers should have a similar condensation profile as the acid so that it is available whenever and wherever the acid forms in the system. Ammonia, for example, is an inexpensive neutralizer but it is not soluble in the condensate and evaporates quickly which compromises its effectiveness [28,29].…”

Section: Accepted Manuscriptmentioning

confidence: 99%