Sorption enhanced catalytic CF4 hydrolysis with a three-stage catalyst-adsorbent reactor

Jae Yun Han, Chang Hyun Kim, Boreum Lee, Sung Chan Nam, Ho Young Jung, Hankwon Lim, Kwan Young Lee, Shin Kun Ryi

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

In this study, we developed a three-stage catalyst-adsorbent reactor for the catalytic hydrolysis of CF4. Each stage is composed of a catalyst bed followed by an adsorbent bed using Ca(OH)2 to remove HF. The three stages are connected in series to enhance the hydrolysis of CF4 and eliminate a scrubber to dissolve HF in water at the same time. With a 10 wt-% Ce/Al2O3 catalyst prepared by the incipient wetness method using boehmite and a granular calcium hydroxide as an adsorbent, the CF4 conversion in our proposed reactor was 7%–23% higher than that in a conventional single-bed catalytic reactor in the temperature range of 923–1023 K. In addition, experimental and numerical simulation (Aspen HYSYS®) results showed a reasonable trend of increased CF4 conversion with the adsorbent added and these results can be used as a useful design guideline for our newly proposed multistage reactor system. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)1-8
Number of pages8
JournalFrontiers of Chemical Science and Engineering
DOIs
Publication statusAccepted/In press - 2017 Jun 30

Keywords

  • calcium hydroxide
  • catalytic hydrolysis
  • PFCs
  • process simulation
  • sorption enhanced

ASJC Scopus subject areas

  • Chemical Engineering(all)

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