CO2 and H2S absorption in aqueous MDEA with ethylene glycol: Electrolyte NRTL, rate-based process model and pilot plant experimental validation

Karen Gonzalez, Louis Boyer, David Almoucachar,Bénédicte Poulain,Eric Cloarec, Christophe Magnon,Frédérick de Meyer

Chemical Engineering Journal（2023）

引用 9|浏览6

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摘要

•A process model of H2S and CO2 absorption with a blended solvent is presented.•It is based on new thermodynamic, kinetic, and physical experimental data.•It is validated with new high-pressure absorption–regeneration pilot plant tests.•Replacing part of the water by ethylene glycol lowers regeneration energy by ∼ 25 %•However, a strong increase in solvent flow rate is required for isoperformance.

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关键词

Carbon dioxide,Hydrogen sulfide,Absorption,Ethylene glycol,Regeneration,Process simulation

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