Project Phase 2 - Winter 2025

Project Overview

The project’s second phase focuses on improvements to the liquefaction section, targeting better performance, reduced energy consumption, reduced capital cost and emissions, while meeting client specifications for LNG quality.

Technical Design – Process Upgrades

🔄 From AP-C3MR to Optimized AP-DMR

The original Propane Precooled Mixed Refrigerant (AP-C3MR) process was replaced by an optimized Air Products Dual Mixed Refrigerant (AP-DMR) configuration.

Why?

The original -35°C propane pre-cooling wasn’t enough to condense heavy hydrocarbons for specification compliance. The new process:

• Uses a Warm Mixed Refrigerant (WMR) loop (65% ethane, 35% propane) to achieve -72°C
• Adds a De-methanizer to remove and sell heavy hydrocarbons as NGLs
• Uses a Cold Mixed Refrigerant (CMR) loop (57% methane, 38% ethane, 5% nitrogen) to reach -160°C for LNG subcooling

Project Goals Achieved

• ✔️ Met LNG export specifications
• ✔️ Reduced power consumption of liquefaction section by 60%
• ✔️ Lowered CO₂ emissions by 60%
• ✔️ Improved financial indicators: NPV tripled to $67.5B and IRR doubled to 25.6%