Hydroisomerization of Benzene-Containing Gasoline Fractions on a Pt/S –ZrO2–Al2O3 Catalyst: II. Effect of Chemical Composition on Acidic and Hydrogenating and the Occurrence of Model Isomerization Reactions Full article
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Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2011, Volume: 52, Number: 4, Pages: 573-578 Pages count : 6 DOI: 10.1134/S0023158411040057 | ||||
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Abstract:
The acidic and hydrogenating of Pt/SO 4 2− -ZrO2-Al2O3 samples containing from 18.8 to 67.8 wt % Al2O3 as a support constituent were studied by the IR spectroscopy of adsorbed CO and pyridine, and the model reactions of n-heptane and cyclohexane isomerization on these catalysts were examined. The total catalyst activity in the conversion of n-heptane decreased with the concentration of Al2O3; this manifested itself in an increase in the temperature of 50% n-heptane conversion from 112 to 266°C and in an increase in the selectivity of isomerization to 94.2%. In this case, the maximum yield of isoheptanes was 47.1 wt %, which was reached on a sample whose support contained 67.8 wt % Al2O3. A maximum yield (69.6 wt %) and selectivity (93.7%) for methylcyclopentane formation from cyclohexane were also reached on the above catalyst sample. This can be explained by lower concentrations of Lewis and Brønsted acid sites in the Pt/SO 4 2− -ZrO2-Al2O3 system, as compared with those in Pt/SO 4 2− -ZrO2. The experimental results allowed us to make a preliminary conclusion that the Pt/SO 4 2− -ZrO2-Al2O3 catalyst whose support contains 67.8 wt % Al2O3 is promising for use in the selective hydroisomerization of benzene-containing gasoline fractions in the thermodynamically favorable process temperature range of 250–300°C.
Cite:
Kazakov M.O.
, Lavrenov A.V.
, Danilova I.G.
, Belʹskaya O.B.
, Duplyakin V.K.
Hydroisomerization of Benzene-Containing Gasoline Fractions on a Pt/S –ZrO2–Al2O3 Catalyst: II. Effect of Chemical Composition on Acidic and Hydrogenating and the Occurrence of Model Isomerization Reactions
Kinetics and Catalysis. 2011. V.52. N4. P.573-578. DOI: 10.1134/S0023158411040057 WOS Scopus РИНЦ ANCAN OpenAlex
Hydroisomerization of Benzene-Containing Gasoline Fractions on a Pt/S –ZrO2–Al2O3 Catalyst: II. Effect of Chemical Composition on Acidic and Hydrogenating and the Occurrence of Model Isomerization Reactions
Kinetics and Catalysis. 2011. V.52. N4. P.573-578. DOI: 10.1134/S0023158411040057 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Казаков М.О.
, Лавренов А.В.
, Данилова И.Г.
, Бельская О.Б.
, Дуплякин В.К.
Гидроизомеризация бензолсодержащих бензиновых фракций на катализаторе Pt/SO42-ZrO2-Al2O3. II. Влияние химического состава на кислотные свойства и протекание модельных реакций изомеризации
Кинетика и катализ. 2011. Т.52. №4. С.583-588. РИНЦ
Гидроизомеризация бензолсодержащих бензиновых фракций на катализаторе Pt/SO42-ZrO2-Al2O3. II. Влияние химического состава на кислотные свойства и протекание модельных реакций изомеризации
Кинетика и катализ. 2011. Т.52. №4. С.583-588. РИНЦ
Dates:
| Published print: | Jun 30, 2011 |
| Published online: | Aug 6, 2011 |
Identifiers:
| Web of science: | WOS:000293639300017 |
| Scopus: | 2-s2.0-80051630906 |
| Elibrary: | 18058830 |
| Chemical Abstracts: | 2011:985810 |
| Chemical Abstracts (print): | 156:152578 |
| OpenAlex: | W2019281025 |