When captured CO 2 from e.g. post combustion capture is to be transported from the capture site to a final destination be it for injection into subsurface reservoirs for long term storage, for off-site utilisation into various e-fuels such as e-methanol, e-methane or Sustainable Aviation Fuels (SAF), for Enhanced Oil Recovery (EOR) or other means of storage or reuse, high pressure pipeline transport above the critical pressure is found to be the most effective method . To achieve such high pressure, the captured CO 2 needs to be pressurised often by a factor of 100 or more. When CO 2 is captured, it exits the capture facility in a gaseous state, typically at 1-2 bar pressure for post-combustion capture. Pressurisation via gas compression is a straightforward choice. Provided sufficient compression stages with applied inter-cooling, the pressure eventually reaches the desired value for transport above the critical point. Depending on the available cooling utility and the achievable temperature, this will either result in CO 2 in the supercritical or dense phase region. Another option for pressurisation is gas compression to a pressure below the critical pressure, followed by ⋆ Corresponding author: anra@ramboll.com cooling/liquefaction and liquid pumping until the final pressure is reached (in the dense phase region). A variant of this is gas compression to a pressure above the critical point, yet below the final pressure, followed by cooling below the critical temperature and dense phase pumping to the final pressure. Finding the optimal pressurisation pathway has been addressed in several investigations .