DOI: https://doi.org/10.9767/bcrec.10.2.7357.155-161

Experimental Study and Kinetic Modeling of Decoking of Pacol Process Dehydrogenation Catalyst

M. Toghyani  -  Chemical Engineering, Department of Chemical Engineering, College of Engineering, University of Isfahan, Isfahan,, Iran, Islamic Republic of
*A. Rahimi  -  Department of Chemical Engineering, College of Engineering, University of Isfahan , Isfahan, Iran, Islamic Republic of
M. Mamanpoush  -  College of Chemical Engineering, Isfahan University of Technology, Isfahan,, Iran, Islamic Republic of
R. Kazemian  -  College of Chemical Engineering, Isfahan University of Technology, Isfahan,, Iran, Islamic Republic of
A. H. Harandizadeh  -  Chemical Engineering, Department of Chemical Engineering, College of Engineering, University of Isfahan, Isfahan, Iran, Islamic Republic of

Citation Format:
Cover Image
Abstract

The Pt/γ-Al2O3 catalyst life time was limited by the formation of coke on the external and internal surfaces of catalyst in dehydrogenation reactors. The kinetics of decoking of dehydrogenation catalyst was studied in a pilot scale fixed bed reactor experimentally. The effects of temperature, oxygen concentration and other operating conditions on decoking process were investigated. A kinetic model was deve-loped to describe the decoking of mentioned catalyst. An objective function was defined as the sum of squares of the deviations among the calculated and plant data. Accordingly the appropriate values were found in order to minimize this function. It was concluded that there was a good agreement between simulation results and experimental data.  © 2015 BCREC UNDIP. All rights reserved

Received: 18th September 2014; Revised: 28th February 2015; Accepted: 9th March 2015

How to Cite: Toghyani, M., Rahimi, A., Mamanpoush, M., Kazemian, R., Harandizadeh, A.H. (2015). Experimental Study and Kinetic Modeling of Decoking of Pacol Process Dehydrogenation Catalyst. Bulletin of Chemical Reaction Engineering & Catalysis, 10 (2): 155-161. (doi:10.9767/bcrec.10.2.7357.155-161)

Permalink/DOI: http://dx.doi.org/10.9767/bcrec.10.2.7357.155-161

 

Fulltext View|Download
Keywords: Decoking; Pt/γ-Al2O3 Catalyst; Kinetic Parameters; Dehydrogenation process

Article Metrics:

Article Info
Section: Original Research Articles
Language : EN
Recent articles
Synthesis, Characterization and Catalytic Activity of Cu/Cu2O Nanoparticles Prepared in Aqueous Medium The Applications of Mixed Metal Oxides to Capture the CO2 and Convert to Syn-Gas Catalytic Hydrogenation of Levulinic Acid in Water into g-Valerolactone over Bulk Structure of Inexpensive Intermetallic Ni-Sn Alloy Catalysts Back-matter Preface Front-matter More recent articles
  1. Forzatti P., Lietti L. (1999). Catalyst deactivation. Catalysis Today, 52: 165-181
  2. Cheng, C.K., Chin, S.Y., Chye, J.J.E., Ho, K.S. (2013). Characterization of Industrial Pt-Sn/Al2O3 Catalyst and Transient Product Formations during Propane Dehydrogenation. Bulletin of Chemical Reaction Engineering & Catalysis, 8: 77-82
  3. (DOI: 10.9767/bcrec.8.1.4569.77-82)
  4. Istadi, I., Anggoro, D.D., Amin, N.A.S., Ling, D.H.W. (2011). Catalyst deactivation simulation through carbon deposition in carbon dioxide reforming over Ni/CaO-Al2O3 catalyst. Bulletin of Chemical Reaction Engineering & Catalysis, 6: 129-136
  5. (DOI: 10.9767/bcrec.6.2.1213.129-136)
  6. Appleby, W.G., Gibson, J.W., Good, G.M. (1962). Coke Formation in Catalytic Cracking. Industrial & Engineering Chemistry Process Design and Development, 1: 102-110
  7. Voge, H.H., Good, J.M., Greensfelder, B.J. (1951). In Proceedings of the Third World Petroleum Congress, 4: 124. The Hague, Netherlands, the Third World Petroleum Congress, Inc
  8. Ahmed, R., Sinnathambi, C.M., Subbarao, D. (2011). Kinetics of De-coking of Spent Reforming Catalyst. Journal of Applied Sciences, 11: 1225-1230
  9. Hashimoto, K., Takatani, K., Iwasa, H., Masuda, T. (1983). A multiple-reaction model for burning regeneration of coked catalysts. The Chemical Engineering Journal, 27: 177-186
  10. Sampath, B.S., Hughes, R. (1973). A review of mathematical models in single particle gas solid non-catalytic reactions. Chem. Eng. 278: 485-497
  11. Nakasaka, Y., Tago, T., Konno, H., Okabe, A., Masuda, T. (2012). Kinetic study for burning regeneration of coked MFI-type zeolite and numerical modeling for regeneration process in a fixed-bed reactor. Chemical Engineering Journal, 207-208: 368-376
  12. Sampath, B.S., Ramachandran, P.A., Hughes, R. (1975). Modelling of non-catalytic gas-solid reactions-II. Transient simulation of a packed bed reactor. Chemical Engineering Science, 30: 135-143
  13. Kern, C., Jess, A. (2001). Modeling of the regeneration of a coked fixed bed catalyst based on kinetic studies of coke burn-off. Studies in Surface Science and Catalysis, 139: 447-454
  14. Kern, C., Jess, A. (2005). Regeneration of coked catalysts-modelling and verification of coke burn-off in single particles and fixed bed reactors. Chemical Engineering Science, 60: 4249-4264
  15. Behroozi, A., Hatamipour, M.S., Rahimi, A. (2012). Mathematical modeling and parametric study of coke-burning process in a hydrocracker reactor. Computers & Chemical Engineering, 38: 44-51
  16. Toghyani, M., Rahimi, A., Mirmohammadi, J. (2015). Mathematical Modeling and Parametric Study of Dehydrogenation Catalyst Decoking Process. Applied Catalysis A: General, 489: 226-234
  17. Xinping, Z., Zhijun, S., Xinggui, Z., Weikang, Y. (2010). Modeling and Simulation of Coke Combustion Regeneration for Coked Cr2O3/Al2O3 Propane Dehydrogenation Catalyst. Chinese Journal of Chemical Engineering, 18: 618-625
  18. Smith, J.M. eds. (1983). Chemical Engineering Kinetics. McGraw-Hill, New York
  19. Sornette, d. (2006). Critical Phenomena in Natural Sciences: Chaos, Fractals, Self-organization and Disorder: Concepts and Tools. Springer Berlin Heidelberg

Last update:

No citation recorded.

Last update:

No citation recorded.