Development of a model for the estimation of the energy consumption associated with the transportation of CO2 in pipelines

Abstract

All Carbon Capture and Storage (CCS) projects require the transportation of CO2 from a source to a storage location. Although, a compressor and a large diameter pipeline is the normal method used to achieve this, liquefaction, shipping and pumping is sometimes attractive. Identifying the economic optimum is important for all CCS projects, minimizing energy consumption is also important because it corresponds to a resource efficiency in fossil-fuel based projects. This article describes the development and validation of a model that estimates the energy consumption associate with CO2 transportation using the geographic location of the source and the reservoir to incorporate ambient temperature and bathymetry data. The results of the validation work show an average absolute temperature and pressure error less than 1 ◦C and 1 bar compared to a reference model. The model has been developed using openly accessible data and is made available in a repository for open research data.