Modelling and simulation of the Esbjerg pilot plant using the Cesar 1 solvent

Abstract

In the ongoing EU project CESAR (CO2 enhanced Separation and Recovery) one of the main tasks is to develop new promising solvent systems and test these in pilot plants. The aim of the present paper is to show the effect of two of the modifications employed at the Esbjerg pilot plant using the Cesar 1 solvent system. A model for the Cesar 1 solvent system has been developed and implemented in the CO2SIM simulator. By simulation it is shown that the effect of lean vapour re-compression is higher than the effect of inter-cooling even taking into account the extra compression work needed for the compressor. The combined effect of both modifications is slightly less for the Cesar 1 solvent system than reported for 30 wt% mono-ethanolamine.