Surface Modification of Nanocrystalline Zeolite X and Its Application as Catalyst in Synthesis of Cumene in a Packed Bed Flow Reactor: A Kinetic Study
-
Ruchika Thakur
and
Gopinath Halder
Abstract
In the present investigation, synthesis of cumene by transalkylation of 1, 4 DIPB with benzene was studied over cerium modified nano crystalline zeolite X in a fixed bed plug flow reactor. Nano crystalline zeolite X was synthesized and characterized by XRD, SEM, TPD, EDS and FTIR. A series of nanocrystalline zeolite X (MX4, MX6, MX10) modified with ceric ammonium nitrate of different concentrations (4 %, 6 %, 10 %) was used for synthesis of cumene. MX10 zeolite was proved to be the most active catalyst over which 27.12 % yield of cumene was obtained at temperature 553K, benzene/1, 4 DIPB mole ratio of 7.5 and space time-10.54 kg h/kmol. Reduction of crystal size (100–500 nm) in MX10 increases surface area (633m2/gm) and thereby increases cumene yield. A kinetic rate equation was developed from the product distribution pattern following Langmuir–Hinshelwood approach. Kinetic parameters were estimated by nonlinear regression analysis. The activation energy for transalkylation and isomerisation reaction was found to be 88.86 kJ/mol and 99.04 kJ/mol respectively.
Funding statement: Science and Engineering Research Board, (Grant / Award Number: ‘SB/FTP/ETA-160/2012’)
Acknowledgement
One of the authors, Sanghamitra Barman is thankful to Department of Science and Technology, New Delhi, India for funding the grant during the tenure of this work.
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Articles in the same Issue
- Surface Characterization of Sulfated Iron Oxide and Its Synthesis of Biodiesel Under Microwave Radiation
- Surface Modification of Nanocrystalline Zeolite X and Its Application as Catalyst in Synthesis of Cumene in a Packed Bed Flow Reactor: A Kinetic Study
- Effects of CaO on the Yield and Thermal Properties of PANI Nanofibers
- Preparation and TG/DTG, FT-IR, SEM, BET Surface Area, Iodine Number and Methylene Blue Number Analysis of Activated Carbon from Pistachio Shells by Chemical Activation
-
Fischer-Tropsch synthesis: Variation of Co/
- Numerical Simulation on Atomizing Performance of Pressure Swirl Nozzles in Ethoxylation Reactors
- Kinetic Modeling of Indian Rice Husk Pyrolysis
- Preparation of Activated Carbons from Walnut Shell by Fast Activation with H3PO4: Influence of Fluidization of Particles
- Analysis of the Long Time Behavior of Enzymatic Cellulose Hydrolysis Kinetics
- Multi Objective Optimization of a Methane Steam Reforming Reaction in a Membrane Reactor: Considering the Potential Catalyst Deactivation due to the Hydrogen Removal
