The use of fluorinated alumina as a support of the sulfated zirconia catalyst for isomerization of hexane

2021 ◽  
Vol 21 (3) ◽  
pp. 170-176
Author(s):  
M. D. Smolikov ◽  
O. V. Dzhikiya ◽  
L. I. Bikmetova ◽  
K. V. Kazantsev ◽  
I. V. Muromtsev ◽  
...  
Keyword(s):  
Sulfated Zirconia ◽  
Hydrofluoric Acid ◽  
Fluorine Doping ◽  
Alumina Matrix ◽  
Zirconia Catalyst ◽  
Sulfated Zirconia Catalyst ◽  
Fluorinated Alumina ◽  
Sulfated Zirconia Catalysts ◽  
Al2o3 Matrix ◽  
High Octane

The study considers the effect of fluorine doping of the alumina matrix used for the synthesis of supported sulfated zirconia catalysts. Hydrofluoric acid served as a fluorinating agent. The addition of fluorine was shown to affect the textural characteristics of the Al2O3 matrix and hence the surface area of sulfated zirconia catalysts based on the doped systems. It was found that the introduction of fluorine into the catalysts increases their activity (the conversion of hexane) and the yield of high-octane isomer 2,2-dimethylbutane.

Use of Fluorinated Alumina as a Support for the Sulfated Zirconia Catalyst of Hexane Isomerization

2021 ◽  
Vol 13 (4) ◽  
pp. 367-372
Author(s):  
M. D. Smolikov ◽  
O. V. Dzhikiya ◽  
L. I. Bikmetova ◽  
K. V. Kazantsev ◽  
I. V. Muromtsev ◽  
...  
Keyword(s):  
Sulfated Zirconia ◽  
Zirconia Catalyst ◽  
Sulfated Zirconia Catalyst ◽  
Fluorinated Alumina

The promotion of supported sulfated zirconia catalysts by iron and manganese sulfates

2021 ◽  
Vol 21 (3) ◽  
pp. 163-169
Author(s):  
M. D. Smolikov ◽  
L. I. Bikmetova ◽  
K. V. Kazantsev ◽  
I. V. Muromtsev ◽  
A. S. Belyi
Keyword(s):  
Catalytic Activity ◽  
Phase Composition ◽  
Aluminum Hydroxide ◽  
Distinctive Feature ◽  
Sulfated Zirconia ◽  
Acid Sites ◽  
Alumina Matrix ◽  
Sulfated Zirconia Catalysts ◽  
Iron And Manganese ◽  
High Octane

The study considers the effect of iron and manganese introduction on the textural characteristics and phase composition of the alumina matrix used as a support for sulfated zirconia catalysts in hexane isomerization. The additives introduced during plasticization of aluminum hydroxide essentially enhance the catalytic activity, which is expressed in terms of hexane conversion, and the selectivity of isomerization toward the formation of hexane isomers. The distinctive feature of the doped catalysts is the formation of acid sites with LAS/BAS ≥ 2, which promote an increase in the yield of isomers and particularly the yield of high-octane 2,2-dimethylbutane.

Preparation of Cr Metal Supported on Sulfated Zirconia Catalyst

2019 ◽  
Vol 948 ◽  
pp. 221-227
Author(s):  
Latifah Hauli ◽  
Karna Wijaya ◽  
Ria Armunanto
Keyword(s):  
Sulfated Zirconia ◽  
Reduction Process ◽  
Catalyst Preparation ◽  
Impregnation Method ◽  
Wet Impregnation ◽  
Zirconia Catalyst ◽  
Isotherm Adsorption ◽  
Sulfated Zirconia Catalyst ◽  
Adsorption Desorption ◽  
Wet Impregnation Method

Catalyst of Chromium (Cr) metal supported on sulfated zirconia (SZ) was prepared by wet impregnation method. This study aim to determine the optimal concentration of Cr metal that impregnated on SZ catalyst. Preparation of catalyst was conducted at different concentrations of Cr metal (0.5%, 1%, 1.5% (w/w)), impregnated on SZ catalyst, then followed by the calcinationand reduction process. Catalysts were charaterized by FTIR, XRD, XRF, SAA, TEM, and acidity test. The results showed the Cr/SZ 1% had the highest acidity value of 8.22 mmol/g which confirmed from FTIR spectra. All the crystal phase of these catalysts were in monoclinic. The specific surface area increased with the increasing of Cr metal concentration on SZ catalyst and the isotherm adsorption-desorption of N2 gas observed all the catalysts as mesoporous material. The impregnation process formed particles agglomeration.

XPS investigation of an iron/manganese/sulfated zirconia catalyst

1998 ◽  
Vol 126 (1-2) ◽  
pp. 11-15 ◽  
Author(s):  
Diane R Milburn ◽  
Robert A Keogh ◽  
Dennis E Sparks ◽  
Burtron H Davis
Keyword(s):  
Sulfated Zirconia ◽  
Zirconia Catalyst ◽  
Sulfated Zirconia Catalyst ◽  
Iron Manganese
Sign in / Sign up

Export Citation Format

Share Document