Conceptual design of a new SF6 abatement technology using a multi‐bed series reactor for the production of valuable chemicals free of toxic wastes

• Published in: Energy science & engineering 2018-04, Vol.6 (2), p.73-82
• Main Authors: Lee, Boreum, Kim, Sehwa, Song, Jiseon, Ryi, Shin‐Kun, Lim, Hankwon
• Format: Article
• Language: English
• Subjects: CaF2; CaSO4; conceptual design; multi‐bed series reactor; perfluorinated compounds; SF 6
• ISSN: 2050-0505; 2050-0505
• DOI: 10.1002/ese3.183

Conceptual design using multi‐bed series reactors consisting of catalysts and adsorbent beds was performed for a new SF6 abatement and utilization technology free of toxic chemicals to reduce SF6 emissions and produce valuable products like CaF2 and CaSO4 simultaneously. With process simulation studies using Aspen HYSYS®, comparative studies for a single‐bed reactor (SR‐1), a two‐bed series reactor (SR‐2), and a three‐bed series reactor (SR‐3) revealed that more CaF2 and CaSO4 were produced in multi‐bed series reactors compared to a SR‐1 (SR‐3 > SR‐2 > SR‐1) possibly due to sorption‐enhanced hydrolysis. In addition, lower operating temperatures were observed in multi‐bed series reactors (TSR1 > TSR2 > TSR3) showing the positive effect of using multi‐bed series reactors for a simultaneous SF6 abatement and utilization technology. Conceptual design using multi‐bed series reactors consisting of catalysts and adsorbent beds was performed for a new SF6 abatement and utilization technology free of toxic chemicals to reduce SF6 emissions and produce valuable products like CaF2 and CaSO4 simultaneously using Aspen HYSYS®.