The liquefied natural gas (LNG) chain requires significant amounts of resources. Enhancing its efficiency is essential due to environmental concerns, amongst others. Here, we presented various optimization, integration, and multi-scale opportunities that can improve the chain's outputs for a given feed. Our recommendations were derived from rigorous thermodynamic analyses while considering multiple operational modes. Many opportunities were identified; some are suitable for immediate implementation, while others are futuristic. The most appealing options relate to the deployment of cutting-edge energy generators. For 7.81GW feed exergy, the chain's prevailing holding mode loss is enough to power a mega LNG plant processing 23GW feed exergy. Many heat integration opportunities are missed due to standard practices. Losses in standalone mode can be misleading. When considering the utility steps, liquefaction and sweetening losses are the highest. Fuel cells and solar energy are well suited for these and can potentially enhance the chain LNG delivery by over 30%.

液化天然气（LNG）链需要大量资源。除其他因素外，由于环境问题，提高其效率至关重要。在这里，我们介绍了各种优化，集成和多尺度机会，这些机会可以改善给定Feed的链条输出。我们的建议来自严格的热力学分析，同时考虑了多种运行模式。确定了许多机会；一些适合于立即实施，而另一些则具有未来性。最吸引人的选择涉及部署最先进的能量发生器。对于7.81GW的饲料火用来说，链条当前的保持模式损失足以为一家大型LNG工厂提供动力，处理23GW的饲料火用。由于标准实践，错过了许多热集成机会。独立模式下的损失可能会引起误解。当考虑使用步骤时，液化和甜味损失最高。燃料电池和太阳能非常适合这些燃料电池，并且可以将链式LNG的交付量提高30％以上。