Lanran CCUS Application Solutions Series | Case V

Case: 2,000,000 t/a CO₂ Capture & Storage Base at a steel producer in Inner Mongolia

Background: A major steel producer launched China’s first 2,000,000 t/a CCUS base, built in three phases (500,000 + 500,000 + 1,000,000 t/a). Phase I was completed in 2024, marking a milestone in low-carbon steelmaking. Steel plant flue gas contains impurities that degrade amine solvents. To ensure efficient CO₂ capture, continuous HSS removal was required.

Lanran Solution: Lanran provided AC50-180 ED stacks (supplied through an EPC contractor). The amine solvent passes through the ED membranes. Negatively charged HSS ions migrate out, while valuable amines are retained. This keeps the solvent reactive and reduces degradation.

Technology Advantages

✔ Supports scalable CCUS in high-emission industries.

✔ Ensures solvent efficiency in harsh flue gas conditions.

✔ Reduces OPEX (operating expenses) compared with resin replacement.

Results & Impact:

Phase I: 500,000 t/a CO₂ captured successfully.

Provides a low-carbon pathway for China’s steel industry.

Reduced solvent replacement costs and extended amine lifecycle.