Effect of Glutaraldehyde on Corrosion of X80 Pipeline Steel

Feng Tian,Lin Pan

doi:10.3390/coatings11101176

Abstract

Glutaraldehyde (GA) is widely employed as a biocide to control microbiologically influenced corrosion in oil fields and industrial water treatment. It might be corrosive to metal. In this study, the effect of glutaraldehyde on the corrosion behavior of X80 pipeline steel was investigated using electrochemical measurement, weight-loss tests and scanning electron microscope (SEM). The weight-loss and electrochemical data show that GA accelerates the corrosion of samples under aerobic conditions, but just slightly influences the corrosion of steel under anaerobic conditions. The results showed that the glutaraldehyde has a minor effect on the corrosion of steel under anaerobic conditions.

Highlights

Oil production is often carried out by injecting seawater [1,2,3,4,5]
Wen et al found [29] that chelators such as EDDS and HEIDA enhanced the inhibitory effect of glutaraldehyde on sulfate reducing bacteria (SRB) planktonic cells
Xu [30] et al discovered that the mixed biocide composed of glutaraldehyde, EDDS and methanol had a significant effect on inhibiting the growth of SRB planktonic cells and alleviating corrosion of carbon steel

Summary

Introduction

Oil production is often carried out by injecting seawater [1,2,3,4,5]. the injected seawater often brings nutrients and oxidants, such as sulfates, into the reservoir, so that microorganisms can multiply [6,7,8]. Microorganisms can cause pipeline corrosion in different industries, including marine environments [9,10], oil fields [11,12] and industrial water systems [13,14]. They can form biofilms on the surface of pipeline steel, metabolize corrosive media, and cause pipeline corrosion, which is called microbiologically influenced corrosion (MIC) [15,16,17]. Xu [30] et al discovered that the mixed biocide composed of glutaraldehyde, EDDS and methanol had a significant effect on inhibiting the growth of SRB planktonic cells and alleviating corrosion of carbon steel

Methods

Results

Conclusion