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The Investigation of Adsorption Desulfurization of Ethyl Mercaptan by Microfluidic Technology

Alizadeh, Ayda | 2020

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 53486 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Mohammadi, Ali Asghar
  7. Abstract:
  8. In recent years, desulfurization has received much attention due to its devastating environmental effects. The existence of sulfur compounds has effects such as corrosion, poisoning of catalysts, reduction of heat of combustion and reduction of price. Sulfur compounds in hydrocarbon fuels also produce sulfur oxides caused by combustion then they enter the atmosphere, and cause acid rain. Acid rain dissolves building materials, poisons lakes, and destroys forests. Therefore, removing sulfur or converting it to less harmful substances is one of the most important processes in refineries. The method studied in this research is the use of adsorption desulfurization method by microchannel which inner surface is covered with adsorbent. Microchannels are recommended due to the improvement of the rate of transport phenomena, higher selectivity, ease of use in different thermal conditions. In order to select the inner coating, zeolite has been used due to safe operation (low flammability), high regenerating ability and required adsorption capacity. Also, because there is no scaling up problem in micro systems, it demands to use several micro systems in parallel to increase the production. In this study, the removal of ethyl mercaptan by adsorption on a glass microchannel that its walls coated with zeolite was investigated. The effect of feed flow rate and concentration on efficiency was investigated and breakthrough curves were presented. Also, adsorbent regeneration process was performed
  9. Keywords:
  10. Ethyl Mercaptan ; Desulfurizing ; Microfluidic System ; Adsorption Desulfurization ; Glasses Microchannel

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