Vol. 21 No. 2 (2018) Cover Image
Vol. 21 No. 2 (2018)

Published: April 30, 2018

Pages: 248-252

Articles

Adsorptive Desulfurization of Liquid Fuels Using Na-Bentonite Adsorbents

Fatma Dheif Ali 1
1 Chemical Engineering Department, Al-Nahrain University, Bgahdad, IRAQ
History
  • Received: September 24, 2017
  • Revised: November 13, 2017
  • Accepted: January 18, 2018
  • Available Online: April 22, 2018
DOI

https://doi.org/10.29194/NJES21020248

Abstract

In this work, model fuel (Thiophene in hexane) was treated for sulfur removal by adsorptive desulfurization method using modified bentonite with sodium (Na-B) adsorbent. Batch and continuous mode were used in this study. Several operating parameters such as initial thiophene concentration of 250 to 2000 mg/L , adsorbent dose 0.1 to 0.8g/ml were studied for  sulfur removal %. Also a comparison between raw and modified bentonite was performed in this study. In continuous mode, a packed bed of Na-B adsorbent column was used at constant initial thiophene concentration and liquid hourly space velocity (LHSV) to study the breakthrough curve of thiophene. The results showed that Na-B adsorbent was better than raw bentonite in removal of sulfur components. The removal percentages  was 67,75,87,and 91% for 500 mg/L initial thiophene concentration using adsorbent dose o.1, 0.2, 0.4 and 0.8g/ml respectively , and 87, 75, 57, and 53% for adsorbent dose of  0.2 g/ml using initial thiophene concentration of 250, 500, 1000, and 2000 mg/L respectively. It was concluded that when increase the dose of adsorbent, the removal of sulfur increase , and when increase the initial concentration the removal decrease.

Keywords

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