case study

Transforming CO2 Removal with Advanced Adsorption Technology

Project Summary

A US-based clean tech innovator sought alternatives to conventional amine-based carbon dioxide (CO₂) removal methods in natural gas processing. The objective was to evaluate the technoeconomic feasibility of a new solid sorbent-based technology developed in-house, with potential to improve efficiency and reduce environmental impact. 

Challenge

Traditional CO₂ removal systems using chemical absorption are energy-intensive, require frequent chemical replenishment, and raise safety concerns. The company needed a solution that could offer equivalent or superior performance at lower cost and complexity.

Solution

A side-by-side technoeconomic study was conducted to compare: 

Amine Absorption Process:

Standard MDEA-piperazine solution in a regenerative cycle.

Sorbent Adsorption Process:

A proprietary metal-organic framework (MOF) sorbent in a temperature swing adsorption (TSA) configuration.

Both systems were simulated using detailed engineering simulations, incorporating capital costs, energy use, and operational data. 

Key Results

Energy Use:

Steam use: Reduced by over 70%
Cooling water: Reduced by over 80%

Operating Cost:

Significantly lower for the sorbent process due to reduced utility demand and no solvent replacement.

Capital Efficiency:

Total installed cost for the sorbent process was nearly 20% lower than for the amine system.

Financial Metrics:

Comparable net present value (NPV)
Internal rate of return (IRR): ~20% (after-tax) )
Payback period: <5 years

Outcome

The study confirmed that the novel sorbent-based system is a viable and scalable alternative to legacy amine technology. It demonstrated strong technical performance, lower cost of ownership, and alignment with decarbonization objectives. 

Business Impact

This technology positions gas processing facilities to achieve more sustainable CO₂ management while improving long-term profitability and operational resilience. 

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