Process simulation and economic analysis of reactor systems for perfluorinated compounds abatement without HF effluent

Abstract

New and efficient reactor systems were proposed to treat perfluorinated compounds via catalytic decomposition. One system has a single reactor (S-1), and another has a series of reactors (S-2). Both systems are capable of producing a valuable CaF₂ and eliminating toxic HF effluent and their feasibility was studied at various temperatures with a commercial process simulator, Aspen HYSYS^®. They are better than the conventional system, and S-2 is better than S-1 in terms of CaF₂ production, a required heat for the system, natural gas usage and CO₂ emissions in a boiler, and energy consumption. Based on process simulation results, preliminary economic analysis shows that cost savings of 12.37% and 13.55% were obtained in S-2 at 589.6 and 621.4 °C compared to S-1 at 700 and 750 °C, respectively, for the same amount of CaF₂ production.

Graphical abstract

Keywords

perfluorinated compounds (PFCs) / CF₄ / process simulation / economic analysis

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Acknowledgements

This project is supported by the “R&D Center for Reduction of Non-CO₂ Greenhouse Gases (RE2015001690003) ” funded by Korea Ministry of Environment (MOE) as “Global Top Environment R&D Program”.

RIGHTS & PERMISSIONS

2016 Higher Education Press and Springer-Verlag Berlin Heidelberg