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A Study on Dealumination of NaY Zeolite and its VOCs Adsorption Properties
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  • Journal title : Korean Chemical Engineering Research
  • Volume 53, Issue 3,  2015, pp.339-349
  • Publisher : The Korean Institute of Chemical Engineers
  • DOI : 10.9713/kcer.2015.53.3.339
 Title & Authors
A Study on Dealumination of NaY Zeolite and its VOCs Adsorption Properties
Kang, Shinchoon; Lee, Hwayeol; Park, Yeungho;
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 Abstract
In this work, DAY (Dealuminated Y-type) zeolites were prepared to be used as easily regenerable and thermally stable adsorbent substituting activated carbon. NaY zeolites were transformed into DAY zeolites through ion exchange, calcination, steaming, and acid leaching. Calcination temperature and time, and steaming time were changed to increase the Si/Al ratio and maintain crystallinity. Adsorption of VOCs were done for prepared DAY, commercial NaY and Hisiv 1000 in air with relative humidity of 50%. The DAY zeolite prepared by calcination at for 4 hrs and steaming for 7 hrs had a same structure and a Si/Al ratio of 80.4. Its adsorption capacity for water vapor was 10% of NaY, indicating its hydrophobicity. Its adsorption capacity for MEK was 0.8 times of Hisiv 1000, that for toluene 1.6 times, and that for EA 1.3 times.
 Keywords
Dealumination;NaY Zeolite;VOCs;Adsorption;Hydrophobicity;
 Language
Korean
 Cited by
1.
고정층 흡착탑에서 다성분 휘발성 유기화합물의 활성탄 흡착 특성,조종훈;이시훈;이영우;

Korean Chemical Engineering Research, 2016. vol.54. 2, pp.239-247 crossref(new window)
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