Characterization and catalytic activity of Ni/mesoporous aluminosilicate HMS and Mo/mesoporous aluminosilicate HMS in the conversion of n-hexadecane

Vassilina G., Umbetkaliyeva K., OKTAR N., PEKMEZCİ KARAMAN B., Vassilina T.

6th International Russian-Kazakhstan Conference on Chemical Technologies of Functional Materials, Almaty, Kazakistan, 9 - 10 Nisan 2020, cilt.31, ss.580-583 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 31
  • Doi Numarası: 10.1016/j.matpr.2020.06.562
  • Basıldığı Şehir: Almaty
  • Basıldığı Ülke: Kazakistan
  • Sayfa Sayıları: ss.580-583
  • Anahtar Kelimeler: Ni or Mo catalysts, Mesoporous silica, HMS, Textural properties, Hydroisomerization, AL-HMS, ACIDIC PROPERTIES, HYDROISOMERIZATION, HYDROCRACKING, SELECTIVITY, OXIDE, HDS
  • Gazi Üniversitesi Adresli: Evet

Özet

Mesoporous aluminosilicate HMS was synthesized and adopted as a support for Ni and Mo-containing catalysts. Characterization of various samples was performed through XRD and DRIFT techniques. Textural and morphological characteristics were examined using nitrogen adsorption/desorption isotherms. The presence of a mesoporous and ordered structure in the aluminosilicate and catalysts based on it is confirmed by the data of low-temperature adsorption/desorption of nitrogen and X-ray diffraction. A correlation was established between the structural, acidic and catalytic properties of HMS-based catalyst samples. The catalytic activity of Ni/HMS-H-bentonite and Mo/HMS-H-bentonite was investigated during the conversion of n-hexadecane. It was shown that the sample of molybdenum-promoted HMS-based catalyst possesses the highest activity and selectivity in the process of hydroisomerization of n-hexadecane under optimal conditions (320 degrees C, 1 h(-1)). The yield of isoparaffins on this sample is 42 wt% with a selectivity of 91%. (C) 2020 Elsevier Ltd. All rights reserved.