Evaluation Of Nano-sorbents for Removal of Ethyl-benzene from Exhaust of Soil Vapor Extraction (SVE)System

Jangodaz, Elnaz | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 48141 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Sayf Kordi, Ali Akbar; Alaiee, Ebrahim; Tasharrofi, Saiedeh
  7. Abstract:
  8. Volatile organic compounds are major cause of air pollution. In this work, Nano porous material named MIL-101(Fe), MIL-53(Fe), MIL-101(Fe) and MIL-88(Fe) as an adsorbent for the removal of ethyl benzene have been synthesized hydrothermally. The materials were characterized by Fourier-transform infrared (FT-IR) spectroscopy, Surface Analysis Systems (ASAP), and x-ray diffraction (XRD) analysis. Adsorption isotherms of ethyl benzene on the materials were measured experimentally in case of 0-1000ppm concentration of ethyl benzene in air and pressure 1 atmosphere. The mixture of air and VOC (ethyl benzene) with concentration of 100, 250, 500 and 1000 ppm and flow rate of 400, 1030, 1525 and 2025 mL/min passed through an adsorption column with 2.5 cm in diameter at room temperature and atmospheric pressure. The results show that surface area and pore volume of adsorbents have major effect on Ethyl benzene adsorption. The adsorptions of ethyl benzene molecules in Nano structures at 298 K present type-I isotherms. Breakthrough curves were drown based on outlet concentration versus time for each adsorbent. The Results show MIL-101(Cr) with 2052 m2/gr surface area is the best adsorbent among the other adsorbents
  9. Keywords:
  10. Volatile Organic Compound (VOC) ; Nanoadsorbent ; Soil Vapor Extraction (SVE)

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