Optimum operating conditions for direct oxidation of H2S in a fluidized bed reactor

Golestani, F ; Sharif University of Technology

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  1. Type of Document: Article
  2. Abstract:
  3. In this research a mathematical model for direct oxidization of hydrogen sulfide into elemental sulfur in a fluidized bed reactor with external circulation was developed. As the catalyst is deactivated in the fluidized bed, it might be placed in a reduction tank in order to remove sulfur through heating above its dew point. The reactor model demonstrated via MATLAB software. It was shown that variations of H 2S conversion as well as; products formed were reasonable in comparison with corresponding results of a fixed bed reactor. Through analyzing results of this model, it became possible to propose the main optimized operating conditions for the process considered. These conditions included; the temperature range of 100-130°C and utilizing the catalyst as much as possible providingthe highest bed density respect to dimensions of bed, economical aspects that the bed ever remained in fluidized mode. A high active and stable catalyst under the optimum conditions exhibited 100% conversion in a fluidized bed reactor
  4. Keywords:
  5. Direct oxidization ; Fluidized bed ; Mathematical modeling ; Optimum conditions ; Bed density ; Dew points ; Direct oxidation ; Economical aspects ; Elemental sulfur ; External circulation ; Fixed bed reactor ; Fluidized bed reactors ; Matlab- software ; Operating condition ; Optimum operating conditions ; Oxidization ; Reactor models ; Stable catalysts ; Temperature range ; H2S ; Catalysts ; Fluid catalytic cracking ; Fluidized bed furnaces ; Fluidized beds ; Hydrogen sulfide ; Mathematical models ; Sulfur ; Fluidization ; Chemical reactors
  6. Source: World Academy of Science, Engineering and Technology ; Volume 77 , 2011 , Pages 411-415 ; 2010376X (ISSN)
  7. URL: http://waset.org/publications/13429/optimum-operating-conditions-for-direct-oxidation-of-h2s-in-a-fluidized-bed-reactor