E1conomic optimization of CO₂ pipeline configurations

Abstract

Ill this article, an economic optimization tool is developed takmg into account different steel grades, inlet pressure, diameter and booster stations for point-to-point pipelines as well as for simple networks. Preliminary results show that gaseous C02 transport is cost effective for relatively small mass flows and short (trunk) pipelines. For instance, for a pipeline transporting 5 Mt/y over 100 km of agricultural ten-am. gaseous transport would cost 10.2 €/t and liquid transport 12.1 €/t (including initial compression). In terms of materials, the results indicate that higher steel grades (X70) are the most cost effective for onshore pipelines transporting liquid CO₂ while for gaseous CO₂ lower steel grades (X42) are more cost effective.