Comparing the Effects of Pipe Diameter on Flow Capacity of a CO2 Pipeline
- L. Ikeh (University of Newcastle Upon-Tyne, United Kingdom) | J.M. Race (University of Newcastle Upon-Tyne, United Kingdom) | A.G. Aminu (PTDF Abuja)
- Document ID
- Society of Petroleum Engineers
- Nigeria Annual International Conference and Exhibition, 30 July - 3 August, Abuja, Nigeria
- Publication Date
- Document Type
- Conference Paper
- 2011. Society of Petroleum Engineers
- 5.2.2 Fluid Modeling, Equations of State, 4.1.5 Processing Equipment, 6.1.5 Human Resources, Competence and Training, 6.5.7 Climate Change, 4.2 Pipelines, Flowlines and Risers, 4.1.2 Separation and Treating, 4.1.6 Compressors, Engines and Turbines, 4.2.3 Materials and Corrosion, 6.5.3 Waste Management, 4.2.2 Pipeline Transient Behavior
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As carbon capture and storage (CCS) is considered as one of the options for reducing atmospheric emissions of CO2 from human activities and the environment, there are needs to examine the role that a pipeline infrastructure for CCS could play in reducing the CO2 emissions, and the possible development of pathways for a CCS pipeline connecting the source with appropriate sink. In the cost estimation of the CO2 transport, the pipeline diameter plays an important role in optimizing the CO2 to enable the storage of several millions of tonnes of CO2 per year. This paper examines the modelling of a straight pipe segment carrying pure CO2 with impurities and evaluate the effects of different pipe diameter on flow capacity using a pipeline hydraulic simulator. PIPESYS is an integrated flow simulator that allows the modelling of a single and multiphase static and dynamic flow for pipeline hydraulics. This is done by maintaining the inlet parameters (Pressure, Temperature, and mass flow rate) and a pressure drop at a range of length. The process includes using the Peng Robinson (PR) Equation of State and the Beggs and Brills-Moody pressure drop correlation to calculate the PVT behaviour and flow regime respectively. Also, artificial neural networks(ANN) using MATLAB was employed to train and verified the data obtained. The results shows that the models can be used effectively to determine and predict the effects of pipe diameter to flow capacity of CO2 pipelines.
Climate change is the greatest environmental challenge the world is faced with, and calls for extensive reductions in global CO2 emissions (Palmer., 2004). An important response to the climate challenge is making use of CO2 capture and storage technology. The implementation of this technology might also constitute a significant contribution to an environmental future-oriented development and the workforce of the economy.
Carbon capture and storage (CCS) can be divided into four stages, in terms of technology and costs. These includes Capture the CO2 from the source; transportation of the CO2 from the source to the sink (a suitable geological formation); storage which includes injection of the CO2; and monitoring, mitigation, and verification (MMV). For large quantities and distances required for CO2 sequestration, it is well established that pipeline transport is the most economical to improve efficiency and reduce costs (Svensson et al, 2004., IEA GHG, 2005., Zhang et al, 2006).
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