PHYSICAL ADSORPTION OF REFORMING CATALYST BYNITROGEN
| Autor: | Abdul Halim A.K. Mohammed, Hussain K .Hussain, Tariq M. Naife |
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| Jazyk: | angličtina |
| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | Journal of Engineering, Vol 12, Iss 02 (2006) |
| Druh dokumentu: | article |
| ISSN: | 1726-4073 2520-3339 |
| DOI: | 10.31026/j.eng.2006.02.13 |
| Popis: | Physical adsorption by nitrogen gas was studied on seven commercial platinum reforming catalysts (RG-402, RG-412, RG-432, RG-451, RG 422,RG-482, PS-10), four prepared platinum catalysts (0.1%Pt/alumina, 0.2 %Pt/alumina, 0.45 %Pt/alumina and 0.55% Pt/alumina), and -alumina support. Physical adsorption was carried out by using Accelerated Surface Area and Porosimetry (ASAP 2400 device) at 77 K . The results indicate that the surface area in genaral decreases with increasing platinum percentage,high platinum loaded (0.45% and 0.55%) it was found that the percent increasing in surface area was lower than those obtained for low platinum loaded catalysts , and at very higher platinum loading 0.6 %Pt , some reduction in surface area was observed . The precipitation of Re and Ir metals with 0.35 % and 0.6 % platinum increases the surface area , while precipitation of 0.57% Sn with 0.375% Pt/ -alumina deceases the surface area catalyst . |
| Databáze: | Directory of Open Access Journals |
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