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http://nopr.niscpr.res.in/handle/123456789/31174| Title: | Catalytic hydrodenitrogenation of pyridine over presulphided Mo-zeolite |
| Authors: | Ajaka, C D Mann, R S Khulbe, K C |
| Issue Date: | Mar-1994 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Hydrodenitrogenation (HDN) of pyridine, one of the organo-nitrogen compounds found in petroleum and synfuels, is studied over presulphided and unsulphided Mo-zeolite catalyst in an integral fixed bed reactor between 525-573 K, W/F of 42-210 h g-cat/g-mol pyridine at 69 atm pressure and a H2/Pyridine ratio of 13. Experimental results show that at 623 K the conversion of pyridine over the presulphided catalyst was 1.5 times of that over the unsulphided one, whereas the increase in selectivity was about 5 folds. This catalyst gives similar activity to that obtained with commercial Ni-Mo supported on alumina catalyst, but lower conversion. The HDN of pyridine occurred through the formation of piperidine, alkylpiperidines, and finally hydrocarbons. A Langmuir-Hinshelwood type rate expression satisfactorily represented the data. The apparent overall activation energy of the reaction (over sulphided catalyst) is found to be 15.6k cal/g-mol. |
| Page(s): | 75-80 |
| ISSN: | 0975-0991 (Online); 0971-457X (Print) |
| Appears in Collections: | IJCT Vol.01(2) [March 1994] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCT 1(2) 75-80.pdf | 418.18 kB | Adobe PDF | View/Open |
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