Microbial corrosion behavior of pipeline steels in simulation environment of natural gas transportation pipeline.

ABSTRACT: Bacteria are introduced into natural gas transmission pipelines through water-driven gas extraction, which can exacerbate the occurrence of pipeline corrosion. This study utilized a micro-reactor to design a simulated corrosion environment that mimics natural gas gathering and transportation pipelines. The objective was to investigate the corrosion behavior of X80 pipeline steel under the combined effects of CO₂, Cl-, sulfate reducing bacteria (SRB), and iron bacteria (IOB). Additionally, it aimed to elucidate the influence mechanisms of these two microorganisms on corrosion. Under a humid environment with a total pressure of 8.5 MPa and a partial pressure of CO₂ at 0.85 MPa, the corrosion rate of X80 pipeline steel was observed to follow the sequence: IOB > control (

SUBMITTER: Zhu L 

PROVIDER: S-EPMC10714207 | biostudies-literature | 2023 Dec

REPOSITORIES: biostudies-literature