Novel ethylene oxide production with improved sustainability: Loss prevention via supersonic separator and carbon capture.

Sustainability must be always assured in process design. Not rarely, multiple sustainability criteria point oppositely, entailing a need for more systematic and coherent assessments. The Sustainable Process Systems Engineering method is introduced as a two-level hierarchical evaluation of process designs.

Economic leverage affords post-combustion capture of 43% of carbon emissions: Supersonic separators for methanol hydrate inhibitor recovery from raw natural gas and CO drying.

Offshore oil/gas productions are power intensive and CO emitters from gas-fired power generation. This work investigates supersonic separator as a strategy for affording post-combustion capture backed up by cost reductions. Conventional offshore gas processing usually loses thermodynamic hydrate inhibitor methanol in processing and exported gas.