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http://nopr.niscpr.res.in/handle/123456789/22897| Title: | Control of mesoporosity in alumina |
| Authors: | Kumar, Manoj Lal, Babu Singh, Anand Saxena, A K Dangwal, V S Sharma, L D Dhar, G Murali |
| Issue Date: | May-2001 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The textural properties of the alumina carrier play a major role in governing the performance of alumina based heterogeneous catalysts. The regulation of the pore size distribution in the support is of paramount importance in the development of a promising catalyst. The role of peptising agent, combustible additives and binder in regulating the mesoporosity has been investigated using high pressure mercury porosimetry. Control of pore size in 18-50Å radii range can be achieved by peptising alumina monohydrate (boehmite) by 1.5% nitric acid. Additives like polyvinyl alcohol and polyethylene glycol have broadened the mesopores while carbon black has drastically increased pores in 50-100Å range. Addition of 10% calcined alumina as binder has been found suitable to maintain pores <50 Å radii. |
| Page(s): | 157-161 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Appears in Collections: | IJCT Vol.08(3) [May 2001] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCT 8(3) 157-161.pdf | 1.06 MB | Adobe PDF | View/Open |
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