Corrosion Inhibition of N80 Steel Using Novel Diquaternary Ammonium Salts in 15% Hydrochloric Acid

2014 ◽  
Vol 53 (37) ◽  
pp. 14199-14207 ◽  
Author(s):  
Xiaoyun Zhang ◽  
Yunxiang Zheng ◽  
Xiangpeng Wang ◽  
Yufeng Yan ◽  
Wei Wu
Keyword(s):  
Hydrochloric Acid ◽  
Corrosion Inhibition ◽  
Ammonium Salts ◽  
N80 Steel ◽  
Diquaternary Ammonium

Cigarette Butts and Their Application in Corrosion Inhibition for N80 Steel at 90 °C in a Hydrochloric Acid Solution

2010 ◽  
Vol 49 (8) ◽  
pp. 3986-3991 ◽  
Author(s):  
Jun Zhao ◽  
Ningsheng Zhang ◽  
Chengtun Qu ◽  
Xinmin Wu ◽  
Juantao Zhang ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Acid Solution ◽  
Corrosion Inhibition ◽  
Hydrochloric Acid Solution ◽  
Cigarette Butts ◽  
N80 Steel

A Mannich base 1-phenyl-3-(1-pyrrolidinyl)-1-propanone: synthesis and performance study on corrosion inhibition for N80 steel in 15% hydrochloric acid

2016 ◽  
Vol 63 (2) ◽  
pp. 153-159 ◽  
Author(s):  
Yuan Pan ◽  
Fengtao Zhan ◽  
Zhifeng Lu ◽  
Yan Lin ◽  
Zhen Yang ◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Corrosion Inhibitor ◽  
Corrosion Inhibition ◽  
Mannich Base ◽  
Oil Well ◽  
Performance Study ◽  
Content Type ◽  
N80 Steel ◽  
Study Results ◽  
Inhibition Performance

Purpose – The purpose of this paper is to set out a study of a Mannich base, which was synthesized and used as an acidizing corrosion inhibitor first, and to the corrosion inhibitor mechanism. Design/methodology/approach – A Mannich base, 1-phenyl-3-(1-pyrrolidinyl)-propanone (PHPP), was synthesized with acetophenone, pyrrolidine and formaldehyde at pH = approximately 2-3. The structure of PHPP was characterized by elemental analysis and Fourier transform infrared spectroscopy (FTIR). The corrosion inhibition of PHPP on N80 steel in 15 per cent hydrochloric acid (HCl) was studied by weight loss method, scanning electron microscope (SEM) and energy dispersive X-ray analysis (EDAX), and the adsorption behavior of PHPP on the surface of N80 steel was discussed. Findings – The results showed that the inhibition efficiency reached to 99.8 per cent and corrosion rate was 2.65 g·m-2·h-1 at 0.6 per cent of PHPP concentration in 15 per cent HCl, which indicated that PHPP presented excellent corrosion inhibition performance. The results of SEM and EDAX analysis showed that PHPP could be absorbed on the surface of N80 steel. The adsorption process of PHPP on the surface of N80 steel was chemisorption. This process was spontaneous and obeyed Langmuir adsorption isotherm. Originality/value – It was found that PHPP presented excellent corrosion inhibition performance, and it is practicable to enhance oil production in oilfield development as a oil-well acidizing inhibitor. The study results can provide theoretical guidelines for the development of the inhibitor.

Studies on synthesized nontoxic corrosion inhibitors for N80 steel in hydrochloric acid

2014 ◽  
Vol 61 (3) ◽  
pp. 129-138 ◽  
Author(s):  
Mahendra Yadav ◽  
Sumit Kumar ◽  
Dipti Sharma
Keyword(s):  
Hydrochloric Acid ◽  
Corrosion Inhibition ◽  
Corrosion Inhibitors ◽  
Petroleum Industry ◽  
Underlying Mechanism ◽  
Maximum Efficiency ◽  
Content Type ◽  
N80 Steel ◽  
Higher Temperature ◽  
Aggressive Attack

Purpose – The purpose of this investigation was to evaluate the protective ability of 2-amino-N-octadecylacetamide (AOA) and 2-amino-N-octadecyl-3-(4-hydroxyphenyl) propionamide (AOHP) as corrosion inhibitors for N80 steel in 15 per cent hydrochloric acid (HCl), which may find application as eco-friendly corrosion inhibitors in acidizing processes in the petroleum industry. Due to scale plugging in the well bore, there can be a decline in the crude production rate, and an acidization operation has to be carried out, normally by using 15 per cent HCl to remove the scale plugging. To reduce the aggressive attack of HCl on tubing and casing materials (N80 steel), inhibitors are added to the acid solution during the acidifying process. Design/methodology/approach – Different concentrations of the synthesized inhibitors AOA and AOHP were added to the test solution (15 per cent HCl), and the corrosion inhibition efficiencies of these inhibitors for N80 steel were calculated from weight loss determinations, potentiodynamic polarization scans and alternating current (AC) impedance measurements. The influence of temperature (298-323 K) on the inhibition behavior was studied. Surface examinations were performed by means of Fourier transform infrared spectra and scanning electron microscope. Findings – AOA and AOHP at 150-ppm concentration showed a maximum efficiency of 90.04 and 94.97 per cent, respectively, at 298 K in 15 per cent HCl solution. Both the inhibitors acted as mixed corrosion inhibitors. The adsorption of the corrosion inhibitors at the surface of the N80 steel was the underlying mechanism of corrosion inhibition. Originality/value – This paper reports the preliminary laboratory results of inhibitors AOA and AOHP for the corrosion prevention of N80 steel casings and tubulars exposed to HCl and may be of practical help to petroleum engineers for carrying out acidization in oil wells after further investigation of the compound at higher temperature.

Adsorption and corrosion inhibition characteristics of two medicinal molecules

2019 ◽  
Author(s):  
Chem Int
Keyword(s):  
Hydrochloric Acid ◽  
Corrosion Rate ◽  
Mild Steel ◽  
Corrosion Inhibition ◽  
Half Life ◽  
Thermodynamic Data ◽  
Inhibition Efficiency ◽  
Gravimetric Method ◽  
Corrosive Environment ◽  
Corrosion Inhibition Efficiency

The corrosion inhibition characteristics of two medicinal molecules phenylalanine and rutin on mild steel in 1.0M Hydrochloric acid were evaluated using gravimetric method. Corrosion inhibition efficiency of 83.78 and 90.40 % was obtained respectively after seven days. However, phenylalanine showed weak accumulative higher corrosion inhibition efficiency. The presence of both molecules in the corrosive environment reduced the corrosion rate constant and increased the material half-life. Thermodynamic data calculated suggests a spontaneous adsorption of the molecules on the mild steel’s surface.

CORROSION INHIBITION OF ZINC IN HYDROCHLORIC ACID MEDIUM USING UREA INHIBITOR

2007 ◽  
Vol 10 (2) ◽  
pp. 31-38 ◽  
Author(s):  
Khulood AL-Saadie ◽  
◽  
Nadia Abdul Karime ◽  
Israa M Al-Mousawi ◽  
◽  
...  
Keyword(s):  
Hydrochloric Acid ◽  
Acid Medium ◽  
Corrosion Inhibition ◽  
Hydrochloric Acid Medium
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