Industrial Consultancy & Sponsored Research (IC&SR) , IIT Madras
Synthesis, characterization and catalytic properties of hierarchical(nanoporous) zeolites with MFI(ZSM-5),FAU (X,Y) and LTA (A) topologies
Categories for this Invention
Ordered mesoporous zeolites, hierarchical zeolites,MFI-type, FAU-type. LTA-type. mesoporous ZSM-5, mesoporous zeolite-Y, mesoporous zeolite-X, mesoporous zeolite-A, solid acid catalysts.
Targeted Industries
Watermarking IP design,
Electronic circuits
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Applications
Solid acid catalysts production, catalysis and seperation process.
Problem Addressed
Templating agents are expensive, and selectivity towards conversion of phenol is low. There remains a need to develop a zeolite with ordered mesoporous structure with enhanced phenol conversion. Further, there exists a need for synthesizing cost effective catalyst which displays enhanced selectivity towards conversion of phenol
Abstract
Ordered and hierarchically porous zeolite crystal catalyst showing enhanced selectivity towards phenol conversion and a method for preparation of the catalyst are disclosed. A solution containing alumina, silica and an organosilane are mixed and treated at a particular temperature for a particular period of time under pre-determined conditions to obtain a highly crystalline zeolite. A MFI- type, FAU- type and LTA- type zeolites are obtained. The zeolite catalyst exhibits a hierarchically porous structure with ordered mesopores. The surface area of the zeolite is in the range of micropores is in the range of 2- 374 m2 g-1 and the size of the mesopores is in the range of 89 – 499 m2 g-1. The lifetime of the crystal is at least 20 h.
Advantages
1. hierarchically porous zeolite crystal catalyst
2. Enhanced selectivity towards phenol conversion.