CO2 shipping-compression, liquefaction and dehydration (CO2 LIQUID)

The proposed project deals with liquefaction of CO2 and its transportation by ship either for storage or enhanced oil recovery, and the impact of impurities on loading and unloading scenarios. There is little experience of handling liquid CO2 under shipping conditions. The levels, for which impurities (including water) need to be removed from CO2 so as to mitigate handling issues, and the associated impact on energy efficiency of compression and liquefaction, are not understood, especially for CO2 from fossil-fired power plants.

The study aims to evaluate the propensity for leakages, freezing, blockages, and safety issues for liquid CO2 suitable for transportation by ship (near to the triple point).

The project aims to modify the existing PACT facility at Cranfield to allow the multi operational facility to test CO2 in either dense phase or semi refrigerated fluid state. Two key technology gaps will be addressed: How to prepare an energy efficient triple point CO2 under controlled manner and what operational issues would encounter as a function of key impurities?