Experimental investigation on oxidation of sulfurized rust in oil tank
Title
Experimental investigation on oxidation of sulfurized rust in oil tank
Subject
Sulfurized rust
Chemical reaction
Electrochemical reaction
Indicator for monitoring and early-warning
Oil tank
Oxidation process
Description
Oxidation of sulfurized rust in oil tank is complicated, and it is influenced by numerous factors such as water content, air humidity, operating temperature etc. The paper focuses on the oxidation process of sulfurized rust in the wild. Firstly, samples collected from a petrochemical company were put into the sulfurization & oxidation experimental apparatus to gain wet and dry sulfurized rusts. Their chemical compositions and phase were analyzed by Energy Dispersive X-ray Spectrometer (EDS) -scanning electron microscope (SEM) technique. The results showed that both wet and dry sulfurized rusts had S, Fe2O3, Fe3S4 and FeS2, whereas FeS only existed in wet sulfurized rust. The two kinds of rusts gave a short length of side, diamond appearance and a large pore size in structure. Then oxidation of wet sulfurized rust was investigated, which included electrochemical reaction stage, electrochemical & chemical reaction coexisting stage and chemical reaction stage. The final oxidation product of wet sulfurized was determined to be Fe2O3. On the basis of this study, an indicator for monitoring and early-warning was proposed to prevent plants in vicinity of the accidental vessel or tank from fire and explosion.
Publisher
Journal of Loss Prevention in the Process Industries
Date
2015-11-01
Contributor
Dou, Z.
Jiang, J.C.
Zhao, S.P.
Mao, G.B.
Zhang, M.G.
Wang, L.
Wang, Z.R.
Type
Journal Article
Identifier
3ZTC9ZKQ
0950-4230
10.1016/j.jlp.2015.09.009
Collection
Citation
“Experimental investigation on oxidation of sulfurized rust in oil tank,” Lamar University Midstream Center Research, accessed May 15, 2024, https://lumc.omeka.net/items/show/1424.