This file will give a helpful overview of the different process technologies, which are used in LNG liquefaction: APCI, APX (Exxon), Optimised Cascade (Conoco), Fluid Cascade (Equinor), DMR, SMR, PRICO (Golar) and MMLS (Shell, small-scale). For each one, we summarise how it works, advantages and disadvantages, plus typical train sizes, energy efficiencies, examples and involved-companies. We also touch on applicability for FLNG and small-scale LNG.
A 2.5MTpa Floating LNG vessel using the Golar/PRICO process would cost c$700/tpa, or $1.1/mcfe. A $2.5/mcf liquefaction-spread is therefore needed for a 10% return. The key economic risk is ‘uptime’. This file contains our workings; including cost-estimates across 17-categories, such as compressors, heat-exchangers, vessel-costs, et al. Costs are compared for smaller-scale and onshore plants in later tabs.