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Paper Information

Journal:   JOURNAL OF SAFETY PROMOTION AND INJURY PREVENTION   FALL 2015 , Volume 3 , Number 3; Page(s) 155 To 160.
 
Paper: 

TOLUENE VAPORS ADSORPTION IN THE FIXED AND FLUIDIZED BED BY NANO-ZEOLITE

 
 
Author(s):  ANSARI S., JAFARI M.J., SEDGHI R., REZAZADEH AZARI M., ZENDEHDEL R.*
 
* OCCUPATIONAL HEALTH ENGINEERING, DEPARTMENT OF OCCUPATIONAL HEALTH, SCHOOL OF HEALTH, SHAHID BEHESHTI UNIVERSITY OF MEDICAL SCIENCES, TEHRAN, IRAN
 
Abstract: 

Background and Objectives: Toluene is one of the most contaminations in the industries such as petrochemicals and painting. This compound are known with toxic effect on the respiratory and nervous system. Adsorption of solvents in a suitable bed is an effective controlling method for volatile components. Adsorption have been evaluated in the fixed and fluidized bed. The goal of this study is investigation of toluene vapors adsorption on a fixed and fluidized bed of Nano-zeolite Y.
Materials and Methods: Dynamic concentration of toluene vapors in the range of 30-100 ppm were obtained which stable flow of toluene vapors was generated. Toluene vapors adsorption with 2 g of Nano zeolite Y was assessed by gas chromatography equipped with flame ionization detector. Various parameters such as type of bed, air flow rate for bed fluidization, and toluene absorption capacity was investigated.
Results: Size of zeolite Y particle was estimated 154.34
±8.59 nm by scanning electron microscopy. Dynamic adsorption of toluene in the concentration of 30-100 ppm was saturated in the time of 40-50 min by 2 g Nano-zeolite Y. The results show flow rate of 3 L/min provide suitable flow for bed fluidization. Toluene vapors adsorption in the fluidized bed was higher than the fixed bed. Adsorption capacity of fixed and fluidized bed for 100 g of Nano-zeolite Y was evaluated 45.45 and 62.65 mg, respectively.
Conclusion: Smaller particle size increased the adsorption level but adhesion of particles in the fixed bed reduce the adsorption efficiency. In the fluidized bed, due to air flow, adhesion of nanoparticles was reduced and the adsorption of toluene vapors have been increased. It can be concluded that fluidized bed of Nano-particles adsorption is better than fixed bed.

 
Keyword(s): NANO-ZOLITE Y, TOLUENE, FLUIDIZED BED
 
 
References: 
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Citations: 
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APA: Copy

ANSARI, S., & JAFARI, M., & SEDGHI, R., & REZAZADEH AZARI, M., & ZENDEHDEL, R. (2015). TOLUENE VAPORS ADSORPTION IN THE FIXED AND FLUIDIZED BED BY NANO-ZEOLITE. JOURNAL OF SAFETY PROMOTION AND INJURY PREVENTION, 3(3), 155-160. https://www.sid.ir/en/journal/ViewPaper.aspx?id=509547



Vancouver: Copy

ANSARI S., JAFARI M.J., SEDGHI R., REZAZADEH AZARI M., ZENDEHDEL R.. TOLUENE VAPORS ADSORPTION IN THE FIXED AND FLUIDIZED BED BY NANO-ZEOLITE. JOURNAL OF SAFETY PROMOTION AND INJURY PREVENTION. 2015 [cited 2021July25];3(3):155-160. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=509547



IEEE: Copy

ANSARI, S., JAFARI, M., SEDGHI, R., REZAZADEH AZARI, M., ZENDEHDEL, R., 2015. TOLUENE VAPORS ADSORPTION IN THE FIXED AND FLUIDIZED BED BY NANO-ZEOLITE. JOURNAL OF SAFETY PROMOTION AND INJURY PREVENTION, [online] 3(3), pp.155-160. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=509547.



 
 
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