Process simulation and economic analysis of reactor systems for perfluorinated compounds abatement without HF effluent
Boreum Lee , Sunggeun Lee , Ho Young Jung , Shin-Kun Ryi , Hankwon Lim
Front. Chem. Sci. Eng. ›› 2016, Vol. 10 ›› Issue (4) : 526 -533.
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.
perfluorinated compounds (PFCs) / CF4 / process simulation / economic analysis
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Higher Education Press and Springer-Verlag Berlin Heidelberg
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