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Modelling of accidental releases from a high pressure CO2 pipelines

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Author: Molag, M. · Dam, C.
Source:10th International Conference on Greenhouse Gas Control Technologies, 19 September 2010 through 23 September 2010, Amsterdam. Conference code: 84600, 4, 2301-2307
Energy Procedia
Identifier: 429724
doi: doi:10.1016/j.egypro.2011.02.120
Keywords: Environment · Accidental releases · Carbondioxide · Pipeline transport · Risk assessment · Accidental release · Assessment models · Carbon dioxide capture · High pressure · New high · Off-shore · Pipeline transport · Safety distances · Threshold concentrations · Underground storage · Carbon dioxide · Dispersions · Global warming · Greenhouse gases · Pipelines · Rating · Risk assessment · Earth & Environment · UES - Urban Environment & Safety · EELS - Earth, Environmental and Life Sciences


In the near future large quantities of CO2 will be transported over a large distance from Carbon dioxide Capture plants to onshore and off-shore underground Storage (CCS) sites. The risk assessments for the existing CO2 pipelines show distances to harmful threshold concentrations from 1 to 7.2 km. Such large differences in safety distances are not acceptable. For the design, construction and operation of new high pressure CO2 pipelines through populated areas it will be necessary to have a validated risk assessment model. This paper describes the applied models for the outflow and dispersion and the causes of the uncertainties in the outflow and dispersion of CO2 after an accidental release from a high pressure pipeline. © 2011 Published by Elsevier Ltd.