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The development of natural gas resources is increasingly challenged by the presence of high concentrations of carbon dioxide (CO2) in many discovered fields. Gas fields with CO2 content ranging from 30% to 80 mol% are particularly prevalent in Southeast Asia, Australia, and other regions with significant untapped reserves (Arthur D. Little, 2021). Historically, these resources were often considered uneconomical or operationally complex due to the need for deep CO2 removal, the associated energy penalties, and the environmental impact of CO2 venting or flaring. Recent shifts in climate policy: net-zero targets, carbon pricing, and stricter emissions regulations, further complicate the development of high-CO2 gas fields. Conventional LNG production, typically based on gas turbines with heat recovery and multi-stage membrane and/or amine-based acid gas removal, tends to incur substantial CO2 emissions, increased layout and operability complexity (LNG Industry, 2024). These constraints have reduced the commercial attractiveness of conventional high-CO2 gas developments and have encouraged interest in process configurations where decarbonization is integrated into the fundamental design rather than added as a separate, downstream system. At the same time, gas demand remains significant in the Asia-Pacific region, where natural gas is viewed as a pragmatic transition fuel that can displace higher-carbon intensity alternatives while supporting regional energy security (Erhueh et al., 2024). Unlocking high-CO2 fields could materially expand supply if development concepts are paired with effective and compact decarbonization strategies suited to offshore settings (Arthur D. Little, 2021).