Electrochemical methods in corrosion on petroleum industry: laboratory and field results

Autor:	E. M. Cardoso, Oscar R. Mattos, Carlos Joia, L. A. C. J. Garcia
Rok vydání:	2001
Předmět:	Hydrogen Chemistry General Chemical Engineering chemistry.chemical_element Mineralogy Corrosion monitoring Flange Permeation Electrochemistry Fluid catalytic cracking Corrosion Autoclave Chemical engineering
Zdroj:	Electrochimica Acta. 46:3879-3886
ISSN:	0013-4686
DOI:	10.1016/s0013-4686(01)00675-2
Popis:	This paper presents results concerning the use of a multitask cell coupled with a semi-industrial autoclave. A very good correlation was found between electrochemical measurements performed with the multitask cell and the three-electrode probe introduced in one of the autoclave's flanges. Using the permeation technique, a short time response system was obtained with the multitask cell. The observed performance of this system was consistent with the external one attached at the flange. It was observed that neither H 2 S nor cyanide alone increase the corrosion process in the alkaline wet H 2 S environment. The coupled action of these two contaminants is necessary to increase the hydrogen permeation through the steel wall of the equipment. As a consequence of this work, the multitask cell was successfully transferred to a PETROBRAS fluid catalytic cracking light end recovery unit.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6491594bca210b6a8a2b524415df473c https://doi.org/10.1016/s0013-4686(01)00675-2 Zobrazit plný text záznamu Full Text from ScienceDirect