Corrosion rate of high CO2 pressure pipeline steel for carbon capture transport and storage (original) (raw)

Potential Corrosion Issue in CO2 Pipeline

Journal of Education and Practice, 2019

In this paper we investigate the increasing atmospheric concentration of carbon dioxide originating from human activities which include burning fossil fuels for heat and electricity generation, and combustion of other fuels in industry lead to greenhouse gases (GHG) mainly CO2 which has an impact on the global climate warming. It is necessary to scale down the impact of these gases on the global climate by minimizing or preventing greenhouse gas emission to the atmosphere. Carbon capture and storage (CCS) from the source or power plant will help in reducing the emission of CO2 from the atmosphere with the means of transporting the gas through the pipeline from the captured sources or power plant to storage sites underground or for enhanced oil recovery (EOR). However, this gas has some contaminant or impurities which affect the mechanical and chemical properties of the pipeline system during transportation. This paper examines various contaminants such as CO2, H2S, CO, NOX, SOX, and H2O in carbon dioxide transmission pipelines with a particular focus on assessing how the contaminants causes corrosion in the pipeline and also considered materials that can be used as alternative to carbon steel for CO2 transportation pipeline. The materials examined ranges from weldable 13%Cr super modified martensitic stainless steel, 22%Cr duplex and 25% Cr super duplex stainless steel, 316L clad pipe or Lined carbon steel and nickel alloy, and some parameters in materials selection were examined. The alternative materials considered are 13 %Cr super-modified martensitic stainless steel, and 25 %Cr super-duplex stainless steel.

Corrosion of pipelines used for CO 2 transport in CCS: Is it a real problem

International Journal of Greenhouse Gas Control, 2011

The transport of carbon dioxide (CO 2 ) from capture to storage is a vital aspect of any CO 2 capture and storage (CCS) process -and it is essential that it is effective, safe and economical. Transport by pipelines is one of the preferred options and thus, for safe operations, such pipelines should not be subject to internal corrosion. Present CO 2 pipelines used for enhanced oil recovery (EOR) have suffered only minimal corrosion over the last 20 years, however, such pipelines operate under stringent regulations with regard to water and contaminant levels in the CO 2 stream. This paper reviews the literature on the range of potential compositions in CCS CO 2 streams and the likely phases that will be in such streams, the relevant history of CO 2 pipelines, and laboratory studies of CO 2 corrosion, with a view to understanding the corrosion threat to pipelines where CO 2 is the primary fluid.