📋 Case Study

CO₂ Capture from Flue Gas using Amine Absorption

Low CO₂ partial pressure (~0.15 bar); amine degradation and solvent carryover

🏗️ Project Overview

Coal-fired power plant retrofit in Germany (600 MW)

🎯 Challenge

Low CO₂ partial pressure (~0.15 bar); amine degradation and solvent carryover

🔧 Design Approach

MEAs-based absorber with optimized lean loading (0.25 mol CO₂/mol MEA), cross-flow structured packing, and reclaimer unit

📐 Design Diagram

AI-generated project design illustration

📐 Key Calculations

NTU_G

∫(dy/(y−y*))

Result: 6.4

Determines column height

Solvent Circulation Rate

L = G × (Y_in − Y_out)/(X_out − X_in)

Result: 142 m³/h

Impacts pump sizing and regeneration energy

📊 Results

90% CO₂ capture efficiency; <10 ppm amine aerosols in clean gas; 22% lower regeneration energy vs. baseline

💡 Lessons Learned

• •Lean loading control prevents oxidative degradation
• •Structured packings reduce flooding risk at low gas velocities

✅ Key Takeaways

• 1Lean loading control prevents oxidative degradation
• 2Structured packings reduce flooding risk at low gas velocities