2025 Spring Meeting and 21st Global Congress on Process Safety
(179c) Preliminary Study and Review for Cryogenic Post-Combustion CO2 Capture Onboard LNG Driven Ships
Authors
Mamoun Al-Rawashdeh - Presenter, Texas A&M University at Qatar
Dhanaraj Turunawarasu, PETRONAS Carigali Sdn. Bhd.
Jaafar Ballout, Texas A&M University at Qatar
Bing Shen How, Swinburne University of Technology
Viknesh Andiappan, Heriot Watt University
Today, the maritime and shipping industry accounts for 2.9% of total global greenhouse gas emissions which translates into 20% greater emissions compared to the last decade. Large ships face a significant challenge to meet the strict and ambitious upcoming regulations planned by the International Maritime Organization (IMO) to reduce carbon intensity by at least 40% by 2030 and 70% by 2050 compared to 2008 levels. CO2 capture may provide a solution to this issue. However, CO2 capturing technology options available from onshore applications may not directly fit the ship requirements in terms of space. In fact, ships have resource (i.e., available energy onboard) limitations and are mobile, unlike typical stationary emissions sources from power plants and those encountered in the chemical industry. This calls for the need for dedicated studies to explore the potential of the available technologies. This study attempts to spearhead an overview of available cryogenic CO2 capture options and their respective opportunities for onboard implementation. This will be accompanied by preliminary case studies investigating the feasibility of post-combustion cryogenic CO2 capture for liquified natural gas-driven ships.