Coatings, Vol. 15, Pages 1272: Research on Decarburization of Offshore Platforms Based on Membrane–Cryogenic Distillation Coupling Technology

Coatings doi: 10.3390/coatings15111272

Authors:
Longqi Meng
Yibin Chen
Xuanzhang Wu
Panpan Chen
Jie Liu
Zhen Pan

Under the “dual carbon” goals, offshore oil and gas development requires efficient CO2 reduction solutions. This study investigates a membrane–cryogenic distillation-coupled process for treating high-CO2-associated gas (40%–70% CO2). The experimental results demonstrate that the membrane unit enriches CO2 to over 80% under optimized pressure and temperature conditions. Subsequent cryogenic distillation further purifies CO2 to ≥95% with a recovery rate of 80%. The integrated system improves the overall recovery to 80%, reduces energy consumption, and decreases the equipment footprint by approximately 30% compared to conventional methods. This process demonstrates technical feasibility, along with economic and environmental benefits, for decarbonizing offshore gas production, supporting green development in the energy sector.

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Longqi Meng www.mdpi.com