Synergistic effect of propargyl alcohol, octadecylamine, and 1,3-dibutyl thiourea for API P110 alloys in acetic and formic acidic solutions used in oil well acidizing

被引：17

作者：

Nascimento, R. C. ^{[1
]}

Furtado, L. B. ^{[1
]}

Guimaraes, Maria Jose O. C. ^{[1
]}

Seidl, Peter R. ^{[1
]}

Rocha, J. C. ^{[2
]}

Ponciano, J. A. C. ^{[2
]}

Cruz, M. T. M. ^{[3
]}

机构：

[1] Univ Fed Rio de Janeiro, Sch Chem, Dept Organ Proc, Technol Ctr, Rio De Janeiro, RJ, Brazil

[2] Univ Fed Rio de Janeiro, COPPE, Mat & Met Engn Program, Technol Ctr,Corros Lab, Rio De Janeiro, RJ, Brazil

[3] Univ Estado Rio De Janeiro, Chem Inst, Rio De Janeiro, RJ, Brazil

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2018年 / 256卷

关键词：

Carbon steel; Polarization; Weight loss; Acid inhibition; High-temperature corrosion; SULFUR-CONTAINING-COMPOUNDS; BOILING HYDROCHLORIC-ACID; CARBON-STEEL CORROSION; MILD-STEEL; HCL SOLUTION; SPECTROSCOPIC INVESTIGATIONS; ORGANIC-COMPOUNDS; IRON CORROSION; INHIBITORS; MEDIA;

D O I：

10.1016/j.molliq.2018.02.082

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The synergism in an organic formulation containing propargyl alcohol, octadecylamine, and 1,3-dibutyl thiourea was evaluated. The formulation efficiency was tested for API P110 steel in acetic + formic acidic media by weight loss, potentiodynamic polarization, linear polarization resistance, confocal laser scanning microscopy, and scanning electron microscopy. The formulation was characterized using Fourier transform infrared spectroscopy. Gravimetric analysis (353-393 K) revealed efficiencies above 98% and confirmed the importance of the multi component formulation, which acts as a mixed-type inhibitor. The inhibiting film was confirmed by scanning electron microscopy. The substances evaluated show a synergistic effect when employed together. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：548 / 557

页数：10

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