CO2 PIPELINES — Conclusion: Impurity types, concentration influence hydraulic design

Real CO2 streams—those from CO2-capture plants likely to contain impurities as opposed to pure CO2 streams—will likely contain at least 95 mole % CO2 but will also contain impurities generated in the individual power plant and carbon capture-related facilities.The first part of this article (OGJ, Apr. 12, 2010, pp. 39) described in detail methods for determining steady-state pressure and temperature profiles of such CO2 streams. The conclusion, presented here, addresses the expected influence of impurities present in real CO2 streams on the hydraulic pipeline layout and presents an overview diagram enabling a first estimation of the most economic pipeline diameter, depending o...

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