An Investigation on the Effects of Different Solvents on the Characteristics of a Carbon Capture System in a Tanker

Harmful emissions into the atmosphere, such as carbon dioxide (CO 2 ), are increasing due to the extremely use of fossil fuels in the world.The shipping also increases global CO 2 emissions.This results in critical ecological issues like global warming, climate change and air pollution.Therefore, applications to reduce CO 2 emissions are needed, and carbon capture is one of these.In this study, the effects of mono-ethanolamine (MEA), piperazine (PZ) and ammonia (NH 3 ) solvents on the carbon capture costs and CO 2 capture rates (%) of the carbon capture system aboard a tanker were investigated for 30 wt% solvents.Capturing performance and economic analyses of the carbon capture system aboard the 49.990 DWT tanker were performed using Aspen HYSYS software.For different solvents, annual captured CO 2 emission amounts and CO 2 capture rates (%) were obtained at 85% engine load-cruise mode.For the same geometries of carbon capture columns, the carbon capture costs of the system per ton of CO 2 are $82.6,$69.6, and $47.3 for MEA, PZ and NH 3 solvents, respectively and the CO 2 capture rates are 30.9%,36.7%, and 54% for MEA, PZ and NH 3 solvents, respectively.Cost-effective capture of CO 2 emissions released from ships into the atmosphere is important for the widespread use of carbon capture and storage systems.