Search
Filters

High Temperature Sulfidic Corrosion of Carbon Steel in Model Oil/Sulfur Compound Blends

In this work, the kinetics of sulfidic corrosion of carbon steel as a function of temperature, model sulfur compound concentration and test duration have been studied by a weight loss method.

Product Number: 51317--8909-SG
ISBN: 8909 2017 CP
Author: Samin Sharifiasl
Publication Date: 2017
$0.00
$20.00
$20.00

Sulfidic corrosion of steels is defined as a high temperature (≥450 oF/232 oC) degradation phenomenon that occurs in oil containing sulfur species. Over the last few decades, many researchers have studied sulfidic corrosion; however, precisely predicting sulfidic corrosion rate is still a challenging task. In this work, the kinetics of sulfidic corrosion of carbon steel as a function of temperature, model sulfur compound concentration and test duration have been studied by a weight loss method. Hydrotreated vacuum gas oil (HVGO) was used as a solvent and dimethyl disulfide (DMDS) as a model sulfur compound. DMDS is an ideal compound for this type of study, because of its high sulfur content (68%) and its decomposition temperature range of 360-450 oF (182-232 oC). It was found that the corrosion rate strongly depends on the concentration of sulfur species, temperature and time. The activation energy and reaction order with respect to DMDS concentration were extracted from the experimental data. The structure, morphology and chemical composition of the corrosion scales were further analyzed using the scanning electron microscope (SEM).

Keywords: Sulfidic corrosion, DMDS, refinery, high-temperature corrosion

Sulfidic corrosion of steels is defined as a high temperature (≥450 oF/232 oC) degradation phenomenon that occurs in oil containing sulfur species. Over the last few decades, many researchers have studied sulfidic corrosion; however, precisely predicting sulfidic corrosion rate is still a challenging task. In this work, the kinetics of sulfidic corrosion of carbon steel as a function of temperature, model sulfur compound concentration and test duration have been studied by a weight loss method. Hydrotreated vacuum gas oil (HVGO) was used as a solvent and dimethyl disulfide (DMDS) as a model sulfur compound. DMDS is an ideal compound for this type of study, because of its high sulfur content (68%) and its decomposition temperature range of 360-450 oF (182-232 oC). It was found that the corrosion rate strongly depends on the concentration of sulfur species, temperature and time. The activation energy and reaction order with respect to DMDS concentration were extracted from the experimental data. The structure, morphology and chemical composition of the corrosion scales were further analyzed using the scanning electron microscope (SEM).

Keywords: Sulfidic corrosion, DMDS, refinery, high-temperature corrosion

Also Purchased
Picture for AN EXPERIMENTAL METHOD FOR EVALUATION OF CRUDE CORROSIVITY - NAPHTHENIC ACID AND SULFIDIC CORROSION
Available for download

51312-01564-AN EXPERIMENTAL METHOD FOR EVALUATION OF CRUDE CORROSIVITY - NAPHTHENIC ACID AND SULFIDIC CORROSION

Product Number: 51312-01564-SG
ISBN: 01564 2012 CP
Author: Brian D. Chambers
Publication Date: 2012
$20.00
Picture for Naphthenic Acid and Sulfur Containing Crude Oil Corrosion: A Comparative Review
Available for download

51316-7598-Naphthenic Acid and Sulfur Containing Crude Oil Corrosion: A Comparative Review

Product Number: 51316-7598-SG
ISBN: 7598 2016 CP
Author: Yuhchae Yoon
Publication Date: 2016
$20.00
Picture for 00702 UNUSUAL ASPECTS OF CORROSION FAILURES IN
Available for download

00702 UNUSUAL ASPECTS OF CORROSION FAILURES IN REFINERY HYDROTREATER UNITS

Product Number: 51300-00702-SG
ISBN: 00702 2000 CP
Author: Gerald W. Wilks
$20.00