An issue faced in deploying vacuum-based adsorption technologies (e.g., VSA, TVSA), such as post-combustion capture, and DAC, is that vacuum pumps of sufficiently large capacity do not exist. This necessitates significant parallelisation (e.g., 50-100 pumps for a 1 Mtpa post-combustion capture plant). This adds significant cost and land requirements. However, land limitations prevent the installation of a high number of equipment items, which is a key barrier for the deployment of adsorption technologies for these applications. Thus, focus should be placed on developing vacuum pumps of larger capacity.