Corrosion processes and control in recirculating cooling water systems in refinery and petrochemical industry

被引：0
|
作者：
Taseva, V [1 ]
Dobrevsky, I
Nenov, V
Dimitrova, N
Bonev, B
Grudeva, V
Novakova, A
机构：
[1] Univ Prof Dr As Zlatarov, Dept Water Technol, Bourgas 8010, Bulgaria
[2] Univ Sofia, Fac Biol, Sofia 1000, Bulgaria
[3] Moscow MV Lomonosov State Univ, Dept Phys, Moscow 117234, Russia
来源：
MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION | 2000年 / 51卷 / 11期
关键词：
D O I：
10.1002/1521-4176(200011)51:11<811::AID-MACO811>3.0.CO;2-T
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The corrosion activity of tree RCWS in Bulgaria were investigated. The highest corrosion rate was observed in RCWS-1, a system typically contaminated by oil products. In this specific case the metal coupons were covered by a uniform and dense bio-corrosion fouling. The maximum corrosion rate registred during the first 200 h of testing was 0.5 mm/y. These results were confirmed by electrochemical potential measurements and monitoring. The Moessbauer spectra and thermomagnetic analysis of deposits from surfaces of real heat exchangers were obtained. There is an indication of FeS2 (pyrite) and Fe7S8 (pyrolite) as corrosion products in the samples studied, which can be attributed to a SRB activity in the cooling water.
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页码：811 / 816
页数：6
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