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Reaction Modeling of Mercaptan Conversion to H2S and Hydrocarbons over ZSM-5 Catalysts in Microreactor

Ayatizadeh Tanha, Maryam | 2019

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 51992 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Kazemeini, Mohammad
  7. Abstract:
  8. Microfluidic devices carry fluids in channels with the diameter in the scale of micrometers. Low consumption of raw materials, higher selectivity, enhancement of heat and mass transfer, and improved safety considerations are benefits of the application of microfluidic devices. In this venue, catalytic microreactors get high potential in the filed of the catalytic reaction. In recent years due to strict international environmental regulations, the sulfur content in fossil fuels should be at the minimum content. MEROX process is to most common route to remove mercaptan from the LPG dreams in the material gas refineries. However, in this process, the production of DiSulfid Oil (DSO) is a substantial problem for the mercaptan removal process. In this research catalytic conversion of ethyl mercaptan to hydrogen sulfide and hydrocarbons is an interesting way to remove mercaptans from fossil fuels. In this research kinetic study of ethyl mercaptan conversion on H-ZSM-5 catalyst has been investigated. Proposed network reaction in this research products product distribution properly. Parameters of reaction rate constants estimated by improved genetics algorithm (iGAMMAS). Based on the proposed network reaction network and developed a kinetic model optimization of microreactors to achieve high conversion of ethyl mercaptan over H-ZSM-5 catalyst have been studied. With the aid of computational fluid dy amics an optimized geometry of microreactors recomenneded in this research
  9. Keywords:
  10. Kinetic Model ; Catalytic Removal ; Zeolite Catalyst HZSM-5 ; Microreactor ; Demercaptanization

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