PHYSICAL ADSORPTION OF REFORMING CATALYST BYNITROGEN

• Published in: Journal of Engineering 2006-06, Vol.12 (2)
• Main Authors: Abdul Halim A.K. Mohammed, Hussain K .Hussain, Tariq M. Naife
• Format: Article
• Language: English
• ISSN: 1726-4073; 2520-3339
• DOI: 10.31026/j.eng.2006.02.13

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 .