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Thermal and catalytic hydrocracking of Iranian Paraffin: A unique lumped kinetic model

Zarkesh, J ; Sharif University of Technology | 2000

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  1. Type of Document: Article
  2. Publisher: Sharif University of Technology , 2000
  3. Abstract:
  4. In this paper, thermal and catalytic hydrocracking of liquid paraffin hydrocarbons, from Tehran refinery, is studied using a pilot plant reactor. The experimental system consisted of a vertical tubular flow reactor where hydrogen and liquid products were fed from the top of the reactor and after passing through a bed of catalyst (or quartz beads in the case of thermal hydrocracking experiments), the liquid and gaseous products were separated and sampled for subsequent analyses. The reaction temperature was in the range of 410-430°C for catalytic hydrocracking and 440-470°C for thermal hydrocracking experiments. The space velocities for both sets of experiments varied between 0.5 to 1.5 volume of feed per volume of catalyst per hour (VVH). For the purpose of kinetic modeling, a unique lumping scheme was employed for both catalytic and thermal hydrocracking in which the lumps consisted of various boiling fractions. The predicted product distributions of the model are in good agreement with the experimental data. Extrapolation of the results indicates that the catalyst plays an important role in hydrocracking reactions even at low temperatures
  5. Keywords:
  6. Catalytic cracking ; Pilot plant ; Paraffin
  7. Source: Scientia Iranica ; Volume 6, Issue 5 , 2000 , Pages 92-97 ; 10263098 (ISSN)
  8. URL: http://scientiairanica.sharif.edu/article_2802.html