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Kinetics of Liquid - Phase Hydrogenation of Straight Chain C10 to C13 Di-Olefins Over Ni/Al2O3 Catalyst

  • D. Rajeshwer , G. Sreenivasa Rao , K.R. Krishnamurthy , G. Padmavathi , N. Subrahmanyam and Jagdish D Rachh
Published/Copyright: April 1, 2006
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International Journal of Chemical Reactor Engineering
From the journal International Journal of Chemical Reactor Engineering Volume 4 Issue 1

Straight chain C10 to C13 di-olefins were selectively hydrogenated to increase the mono-olefins content in the feed to alkylation reactor in the process of production of Linear Alkyl Benzene (LAB). The reaction was carried out in a liquid phase up-flow fixed bed reactor at temperature of 448-503 °K and pressure of 1.08-1.96 MPa, which keeps hydrogen dissolved in the hydrocarbon feed. Under the above process conditions the reactor will be virtually two phase (solid-liquid) instead of three phase (solid-liquid-vapour). Kinetics of hydrogenation of straight chain C10 to C13 di-olefins on nickel – alumina (Ni/Al2O3) catalyst was studied in the temperature range of 458-488 °K. The reaction scheme considered includes two consecutive hydrogenation reactions. Various rate models based on the modified Power Law, Horiuti-Polanyi mechanism & proposed by Somers. A.; were derived for the two consecutive hydrogenation reactions and subjected to model discrimination. Parameter estimation was done utilizing the Levenberg-Marquardt Algorithm for global convergence using MATLAB software. Out of the various models tested, rate model based on power law with modification fitted the data well. The estimated rate constants of the best model are thermodynamically sound and statistically consistent.

Keywords: kinetics; selective hydrogenation; straight chain C10 to C13 diolefins; liquid phase hydrogenation
Published Online: 2006-4-1

©2011 Walter de Gruyter GmbH & Co. KG, Berlin/Boston

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  1. Review
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  5. Direct Numerical Simulation of Mass Transfer from Spherical Bubbles: the Effect of Interface Contamination at Low Reynolds Numbers
  6. Plasma-Prepared Ni/Al2O3: Preparation, Characterization and Toluene Hydrogenation
  7. Flow Induced by Dual-Turbine of Different Diameters in a Gas-Liquid Agitation System: the Agitation and Turbulence Indices
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https://doi.org/10.2202/1542-6580.1244
Keywords for this article
kinetics; selective hydrogenation; straight chain C10 to C13 diolefins; liquid phase hydrogenation

Articles in the same Issue

  1. Review
  2. Practical Implications of Bifurcation and Chaos in Chemical and Biological Reaction Engineering
  3. Article
  4. Optimization of Bacterial Oxidation Process Parameters for Selective Leaching of Nickel by Thiobacillus Ferrooxidans
  5. Direct Numerical Simulation of Mass Transfer from Spherical Bubbles: the Effect of Interface Contamination at Low Reynolds Numbers
  6. Plasma-Prepared Ni/Al2O3: Preparation, Characterization and Toluene Hydrogenation
  7. Flow Induced by Dual-Turbine of Different Diameters in a Gas-Liquid Agitation System: the Agitation and Turbulence Indices
  8. A Comprehensive Model for Catalytic Membrane Reactor
  9. A Structured Model for Interleukin-11 Production with Recombinant E.coli and Genetic Algorithm for Model Parameter Estimation
  10. Calorimetry for Inferential Conversion Monitoring in Emulsion Copolymerization Reactors
  11. Identification of the State of a Magneto-Fluidized Bed by Pressure Fluctuations
  12. Modeling a Silicon CVD Spouted Bed Pilot Plant Reactor
  13. Intercooled Double-Bed Reactor for LTWGS Reaction with Catalyst Poisoning by Chlorine: Inlet Temperatures for the Maximization of the Production
  14. Comprehensive Modeling of Gas Fluidized-Bed Reactors Allowing for Transients, Multiple Flow Regimes and Selective Removal of Species
  15. Isothermal PFR/PMR Networks
  16. Influence of Particles and Electrolyte on Gas Hold-Up and Mass Transfer in a Slurry Bubble Column
  17. Three Phase Catalytic Reactions: Role of Omega Aqueous Phase in Solid-Liquid Phase Transfer Catalyzed Etherification of 2'- Hydroxy Acetophenone
  18. Treatment of Cork Wastes in a Conical Spouted Bed Reactor
  19. Biosorption of Combined Industrial Effluents using Phanerochaete Chrysosporium
  20. Kinetics of Liquid - Phase Hydrogenation of Straight Chain C10 to C13 Di-Olefins Over Ni/Al2O3 Catalyst
  21. Kinetics of H2S Sorption on Manganese Oxide and Mn-Fe-Cu Mixed Oxide Prepared by the Complexation Technique
  22. Design of a Fuel Cell Power System for Automotive Applications
  23. Simulation of a Two-Stage Micro Trickle-Bed Hydrotreating Reactor using Athabasca Bitumen-Derived Heavy Gas Oil over Commercial NiMo/Al2O3 Catalyst: Effect of H2S on Hydrodesulfurization and Hydrodenitrogenation
  24. Improved Rate Laws and Population Balance Simulation Methods; CRE Applications, Including the Combustion Synthesis of Valuable Nano-Particles
  25. VPO Transient Oxidation Kinetics
  26. Cluster-Based Modeling of Fluidized Catalytic Oxidation of n-Butane to Maleic Anhydride
  27. New Wet Flue Gas Desulfurization Process Using Granular Limestone and Organic Acid Additives
  28. Axial and Radial Investigation of Hydrodynamics in a Bubble Column; Influence of Fluids Flow Rates and Sparger Type
  29. A Numerical Algorithm for the Analysis of the Bubble Dynamics in Two-Dimensional Fluidized Beds Simulated by Means of CFD Multiphase-Flow Codes
  30. Computational Fluid Dynamics (CFD) Modeling of Fine Particle Spouting
  31. Effect of Silica Support on V-Mg-O Catalysts during ODH of Propane: Experimental and Modeling using Genetic Algorithms
  32. Well Dispersed Co0 by Reduction of LaCoO3 Perovskite
  33. Improvement of the Performances of a Gas-Inducing System for Application in Wastewater Treatment
  34. Catalytic Cracking of Plastic Pyrolysis Waxes with Vacuum Gasoil: Effect of HZSM-5 Zeolite in the FCC Catalyst
  35. Esterification of Palmitic Acid with Iso-Propanol in a Catalytic Distillation Column: Modeling and Simulation Studies
  36. Synthesis of SiO2 Nanoparticles in RF Plasma Reactors: Effect of Feed Rate and Quench Gas Injection
  37. Pd Supported on Ce/Zr Mixed Oxides in the Reduction of NO with Propylene in Oxidizing Conditions
  38. Effects of Design and Operating Parameters on Hydrodynamics of Circulating Bubble Columns with Open Channel Gas Separators
  39. Kinetics and Modelling of Bulk and Solution Diallyl Terephthalate Polymerization
  40. Reactor Model for the Underground Coal Gasification (UCG) Channel
  41. Study and Improvement of the Regeneration of Metallic Oxides Used as Oxygen Carriers for a New Combustion Process
  42. Short Communication or Note
  43. Dehydrogenation of Ethane and Hydrogenation of Carbon Dioxide in a Catalytic Membrane Reactor Using Copper-Plated LaNi5 as a Membrane Material
  44. Short Communication or Note
  45. Stabilization of a CSTR in an Oscillatory State by Varying the Thermal Characteristics of the Reactor Vessel
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