سال انتشار: ۱۳۸۸

محل انتشار: ششمین کنگره بین المللی مهندسی شیمی

تعداد صفحات: ۵

نویسنده(ها):

Abedeh Gholidoust – Department of Chemical engineering, Faculty of engineering, Amirkabir university of technology, Tehran, Iran
Maryam Saeedizad – Catalysis Research group, Tehran center, Petrochemical Research &Technology Company NPC, P.O.Box 14965-115, Tehran, Iran
Saeed Sahebdelfar – Catalysis Research group, Tehran center, Petrochemical Research &Technology Company NPC, P.O.Box 14965-115, Tehran, Iran
Mohammad Rahmani – Department of Chemical engineering, Faculty of engineering, Amirkabir university of technology, Tehran

چکیده:

Different thin step- type pt/q-Al2O3 catalysts have been prepared by co-impregnation technique using citric acid as the competitive adsorbate. Adsorption of platinum in these catalysts was assessed experimentally. It was observed that citric acid concentration has essential effect on the amount of adsorbed platinum. The less the citric acid concentration, the more the platinum adsorption was found. The adsorption yield for catalysts with 0.1 M citric acid was 90-91%, while this amount preceded by 95-96% for those with 0.02 M citric acid.