DataVXCorrosion Engineering, Science and TechnologyPaper
journal article·2021-08-18

The role of acetic acid in FeCO 3 scale deposition on CO 2 corrosion of API X65 carbon steel under high temperatures

Bernardo Augusto Farah Santos, Rhuan Costa Souza, Maria Eduarda Dias Serenario, Eugenio Pena Mendes Junior, Thiago Araujo Simões, Jefferson Rodrigues de Oliveira, Gustavo Leitão Vaz, Lecino Caldeira, Jose Antonio da Cunha Ponciano Gomes, Alysson Helton Santos Bueno

Corrosion Engineering, Science and Technology· Volume 56· Issue 6
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Source abstract

Abstract

The combined effects of high temperatures and different acetic acid (HAc) concentrations on corrosion and deposition of FeCO3 scales on API X65 carbon steel in CO2-saturated brines were investigated. Conditions with the absence and presence of 100 and 600 ppm of HAc were evaluated under high pressure at 90°C and 120°C. Electrochemical impedance spectroscopy, linear polarisation resistance, weight loss and characterisations through scanning electron microscopy, energy-dispersive spectroscopy and X-ray diffraction were conducted. Conditions with the absence of acid presented a huge deposition of sweet corrosion products and low corrosion rates. The addition of 100 ppm of acid at 90°C did not increase significantly corrosion rates; however, it retarded the precipitation of FeCO3. Higher temperatures favoured iron carbonate nucleation even in the presence of HAc. The highest corrosion rates were observed for the environment with 600 ppm of HAc at 120°C.
Source: openalex_inverted_index · Quality: baseline

Research context

Metals & alloysMaterials processing

OpenAlex topics: Corrosion Behavior and Inhibition · Calcium Carbonate Crystallization and Inhibition · Hydrogen embrittlement and corrosion behaviors in metals

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Mechanical Engineering Department, Universidade Federal de São João Del Rei (UFSJ), São João Del Rei, Brazil

Materials Science and Engineering, Universidade Federal da Paraíba (UFPB), João Pessoa, Brazil

PETROBRAS, CENPES/PDP/TMEC, Cidade Universitária, Rio de Janeiro, Brazil

Department of Metallurgical, IF Sudeste MG, Campus de Juiz de Fora, Juiz de Fora, Brazil

Metallurgical and Materials Engineering Department, Universidade Federal do Rio de Janeiro (UFRJ), Ilha do Fundão, Bloco F, Rio de Janeiro, Brazil

Funding

UFSJ · CNPq · CAPES · Fapemig

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