Economic Analysis of Onboard Carbon Capture System Based on PZ-K2CO3 Absorbent
In order to effectively mitigate global temperature rise caused by greenhouse effect,an onboard carbon capture system using K2CO3+PZ as absorbent is proposed.The economy of onboard carbon capture system under different working conditions and different capture efficiency is studied in diesel and gas mode of 5RT-Flex50DF engine.The results show that onboard carbon capture cost is negatively correlated with engine working conditions,and positively correlated with capture rate.Using LNG cold energy in gas mode can effectively reduce the cost of CO2 compression and liquefaction.After fixing the capture efficiency and optimizing the parameters of the carbon capture system,there is no need to introduce additional energy to power the system,and the cost of onboard carbon capture can be reduced to 103 $/t,which significantly reduces the variable operating cost of the system.The research results can provide references for the application of onboard carbon capture technology.
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