Abstract

Monoethanolamine (MEA) hydrochloride salts, which are formed from the use of hexahydro-1,3,5-tris(2-hydroxyethyl)-s-triazine (commonly referred to as MEA triazine), a hydrogen sulfide scavenger, can create major corrosion issues inside an atmospheric crude oil distillation unit. Recently, deposit formation has been observed in a crude unit processing significant quantities of tight oil; these deposits result from polymerization of dithiazines (a reaction byproduct of MEA triazine) in the presence of hydrogen sulfide. Such fouling has been reported in upstream applications. This paper highlights the effects of such fouling occurring in downstream refining.

Keywords:
corrosion management, byproduct, scavenger, production chemistry, oilfield chemistry, houston, workplace hazard, publication division, texas 77084, permission
Subjects:
Production Chemistry, Metallurgy and Biology, Health, Noise, chemicals, and other workplace hazards, Corrosion inhibition and management (including H2S and CO2)
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2015. NACE International
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