Саноатда рақамли технологиялар Volume 2 Issue 4-1 (2024) · pp. 114-119

PHYSICO-CHEMICAL AND CATALYTIC CHARACTERISTICS OF SELECTED CATALYSTS FOR CATALYTIC AROMANING OF PROPANE

Номозова, Садокат Искандаркизи, Файзуллаев, Нормурод Ибодуллаевич, Хамидов, Даврон Рузимуродович, Рахимов, Ганишер Бахтиёрович, Nomozova, Sadokat Iskandarqizi, Fayzullaev, Normurod Ibodullaevich, Hamidov, Davron Ruzimurodovich, Raximov, Ganisher Baxtiyorovich, Nomozova, Sadokat Iskandarkizi, Fayzullaev, Normurod Ibodullaevich, Hamidov, Davron Ruzimurodovich, Rakhimov, Ganisher Bakhtiyorovich

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Abstract

In the work, the physicochemical and catalytic characteristics of catalysts selected for catalytic aromatization of propane were studied. The conversion of propane was studied at a temperature of 450°C and a pressure of 4 atm. Liquid and gaseous process products were analyzed by gas-liquid chromatography in 40 m long SE-30 capillary columns with helium as the carrier gas. Analysis of X-ray data shows that all synthesized samples have a zeolite structure. There are no reflections in diffraction patterns that do not belong to this structural type, and there is also no strong background characteristic of amorphous mixtures. All these indicate the high phase purity of the obtained materials. In contrast to the  sample, the crystalline spirit oxide phase is observed in and . It was possible to prepare a number of samples by mechanical displacement of   with and establish a correlation between the reflection intensity at 2θ=36.4°С and the composition of  crystals in these samples. A comparison of the initial rate of conversion of propane to aromatic hydrocarbons in spirit-containing and acidic high-silica mesoporous zeolites showed that modification with spirit leads to a significant increase in catalyst activity at the initial stages of conversion. No correlation was found between the initial velocities and the concentration of acid centers. On the contrary, a linear correlation was observed with the number of Lewis acid centers. Thus, it was shown that in the initial stages of conversion of propane to aromatic hydrocarbons, the main role is played by L-centers, which include alcohol.

propanecatalysthigh silicon zeolitemodificationconversionyieldselectivityпропанкатализаторвысококремнистый цеолит

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APA 7 
Номозова, Садокат Искандаркизи, Файзуллаев, Нормурод Ибодуллаевич, Хамидов, Даврон Рузимуродович, Рахимов, Ганишер Бахтиёрович, Nomozova, Sadokat Iskandarqizi, Fayzullaev, Normurod Ibodullaevich, Hamidov, Davron Ruzimurodovich, Raximov, Ganisher Baxtiyorovich, Nomozova, Sadokat Iskandarkizi, Fayzullaev, Normurod Ibodullaevich, Hamidov, Davron Ruzimurodovich & Rakhimov, Ganisher Bakhtiyorovich (2024). PHYSICO-CHEMICAL AND CATALYTIC CHARACTERISTICS OF SELECTED CATALYSTS FOR CATALYTIC AROMANING OF PROPANE. Саноатда рақамли технологиялар, 2(4-1), 114-119.
GOST R 7.0.5 
Номозова, Садокат Искандаркизи, Файзуллаев, Нормурод Ибодуллаевич, Хамидов, Даврон Рузимуродович, Рахимов, Ганишер Бахтиёрович, Nomozova, Sadokat Iskandarqizi, Fayzullaev, Normurod Ibodullaevich, Hamidov, Davron Ruzimurodovich, Raximov, Ganisher Baxtiyorovich, Nomozova, Sadokat Iskandarkizi, Fayzullaev, Normurod Ibodullaevich, Hamidov, Davron Ruzimurodovich, Rakhimov, Ganisher Bakhtiyorovich PHYSICO-CHEMICAL AND CATALYTIC CHARACTERISTICS OF SELECTED CATALYSTS FOR CATALYTIC AROMANING OF PROPANE // Саноатда рақамли технологиялар. 2024. Т. 2. № 4-1. С. 114-119.
BibTeX 
@article{искандаркизи2024,
  author  = {Номозова, Садокат Искандаркизи and Файзуллаев, Нормурод Ибодуллаевич and Хамидов, Даврон Рузимуродович and Рахимов, Ганишер Бахтиёрович and Nomozova, Sadokat Iskandarqizi and Fayzullaev, Normurod Ibodullaevich and Hamidov, Davron Ruzimurodovich and Raximov, Ganisher Baxtiyorovich and Nomozova, Sadokat Iskandarkizi and Fayzullaev, Normurod Ibodullaevich and Hamidov, Davron Ruzimurodovich and Rakhimov, Ganisher Bakhtiyorovich},
  title   = {PHYSICO-CHEMICAL AND CATALYTIC CHARACTERISTICS OF SELECTED CATALYSTS FOR CATALYTIC AROMANING OF PROPANE},
  journal = {Саноатда рақамли технологиялар},
  year    = {2024},
  volume  = {2},
  number  = {4-1},
  pages   = {114-119}
}
RIS 
TY  - JOUR
AU  - Номозова, Садокат Искандаркизи
AU  - Файзуллаев, Нормурод Ибодуллаевич
AU  - Хамидов, Даврон Рузимуродович
AU  - Рахимов, Ганишер Бахтиёрович
AU  - Nomozova, Sadokat Iskandarqizi
AU  - Fayzullaev, Normurod Ibodullaevich
AU  - Hamidov, Davron Ruzimurodovich
AU  - Raximov, Ganisher Baxtiyorovich
AU  - Nomozova, Sadokat Iskandarkizi
AU  - Fayzullaev, Normurod Ibodullaevich
AU  - Hamidov, Davron Ruzimurodovich
AU  - Rakhimov, Ganisher Bakhtiyorovich
TI  - PHYSICO-CHEMICAL AND CATALYTIC CHARACTERISTICS OF SELECTED CATALYSTS FOR CATALYTIC AROMANING OF PROPANE
JO  - Саноатда рақамли технологиялар
PY  - 2024
VL  - 2
IS  - 4-1
SP  - 114
EP  - 119
ER  -