Process analysis and economic evaluation of mixed aqueous ionic liquid and monoethanolamine (MEA) solvent for CO2 capture from a coke oven plant

This study investigates the process and economic impacts of using an aqueous mixture of 1-

Eni Oko


Scholarcy highlights

  • 1.1 Background and motivation Carbon capture and storage technology is the most sustainable and economical option for decarbonizing large stationary CO2 emitters such as power plants and carbon-intensive industries 1 such as iron steel plant, cement plant, and refineries
  • The hybrid ionic liquid solvent mixtures have 7-9% and 12-27% less regeneration energy and solvent circulation rate respectively compared to the base case
  • 5.4.2 Results and discussions The results show that the regeneration energy is lower for the mixed IL and MEA solvent compared to the reference 30 wt% MEA solvent
  • Based on the predicted cost of IL, the initial solvent cost is predicted to increase significantly as IL wt% in the mixed solvent increases. This increase in cost can be offset by savings from solvent makeup cost which increases with IL wt% in the combined solvent
  • The entire process using an aqueous mixture of IL and MEA as solvent should be optimized to determine optimal IL wt% in terms of crucial driving process and economic parameters
  • The rate-based model should be validated using experimental data when the data become available

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