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Catalysis in Green Chemistry and Engineering

ISSN Imprimer: 2572-9896
ISSN En ligne: 2572-990X

Catalysis in Green Chemistry and Engineering

DOI: 10.1615/CatalGreenChemEng.2020033159
pages 143-153

EFFECT OF PARTICLE SIZE OF ZSM-5 ZEOLITE ON CATALYTIC PERFORMANCE

Jakkidi Krishna Reddy
Reliance Technology Group, Reliance Industries Ltd., Vadodoara Manufacturing Division, Vadodara, Gujarat 391346, India
Kshudiram Mantri
Reliance Technology Group, Reliance Industries Ltd., Vadodoara Manufacturing Division, Vadodara, Gujarat 391346, India
Ganesan Raman
Reliance Technology Group, Reliance Industries Ltd., Vadodoara Manufacturing Division, Vadodara, Gujarat 391346, India
Shruti Lad
Reliance Technology Group, Reliance Industries Ltd., Vadodoara Manufacturing Division, Vadodara, Gujarat 391346, India
Rudra Prosad Choudhury
Reliance Technology Group, Reliance Industries Ltd., Vadodoara Manufacturing Division, Vadodara, Gujarat 391346, India
Raksh Vir Jasra
Reliance Technology Group, Reliance Industries Ltd., Vadodoara Manufacturing Division, Vadodara, Gujarat 391346, India

RÉSUMÉ

The effect of various synthesis parameters on the particle size of ZSM-5 and its effect on catalytic performance in olefin removal from aromatic streams were investigated. H-ZSM-5 samples with particle size ranging from 50 to 2500 nm were synthesized by varying the structure-directing agents, silica-alumina sources with varied crystallization parameters. Physicochemical properties of the prepared samples were elucidated by characterization techniques such as x-ray diffraction, the Brunauer-Emmett-Teller method, pore-size distribution, scanning electron microscopy, NH3 temperature-programmed desorption, and inductively coupled plasma analysis. Prepared catalyts were tested for olefin removal from aromatic streams. Small-particle-sized ZSM-5 catalysts were observed with high activity and slow deactivation compared to those of large-particle-sized ZSM-5. High activity and stability of small-particle-sized ZSM-5 is attributed to shortened channel lengths, high surface area, mesoporosity, and exposure of more active sites to the substrate molecules. A detailed study on the structure activity correlation ship is established in the present investigation.

RÉFÉRENCES

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