Tez özetleri Astronomi ve Uzay Bilimleri Anabilim Dalı

Preparation And Characterization Of Promoted Nanosized Sulphated Zirconia Catalysts

In this study, n-butane dehydroisomerization reaction was studied over promoted nanosized sulphated zirconia catalysts, and as promoter Aluminum, Manganese, Copper and Nickel were used in all experiments.

Reaksion was carried out in differantial fixed bed micro reactor at 560^oC (±5) and under atmospheric pressure. Activity tests were done with a mixture of 10% n-butane, 20% H₂ over 65 mg catalysts. Feed and product streams were followed by an online gas chromatograph.

The catalysts were characterized by X-ray diffraction, atomic absorbtion analysis, thermal gravimetric analysis and various enstrumental analysis techniques.

Using these methods, effects of metal utilized and partical size on the selectivity and yield of n-butane were investigated.

As a conclusion, we have found that prepared catalysts, expecially Aluminum as a promoter, showed much higher selectivity towards isobutene than unpromoted ones.

USLUOĞLU Ayşe ,

Danışman : Prof. Dr. İsmail BOZ

Anabilim Dalı : Kimya Mühendisliği

Programı (Varsa) : Proses ve Reaktör Tasarımı

Mezuniyet Yılı : 2006

Tez Savunma Jürisi : Prof. Dr. İsmail BOZ (Danışman)

Prof. Dr. Mehmet Ali GÜRKAYNAK

Prof.Dr. Süleyman TANYOLAÇ

Prof.Dr. Ahmet KAŞGÖZ

Doç.Dr. İsmail AYDIN