Conversion of gas-condensate straight-run gasolines to high-octane gasolines over zeolite catalysts modified with metal nanopowders

Ерофеев, В. И.; Медведев, А. С.; Khomyakov, I. S.; Erofeeva, Ekaterina V.

doi:10.1134/s1070427213070069

Cited by 9 publications

(2 citation statements)

References 4 publications

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“…Hajimirzaee et al have studied the effect of Zn or Ga/ZSM5 on LPG conversion to gasoline where they found both have shown the same performance at a low impregnated concentration [14]. Zeoforming is a process where the catalyst is ZSM5 dealing with light hydrocarbons feedstock with a promising pathway [15]. One of the plus points in zeoforming is no need for hydrogen like the conventional reforming process [16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Production of High-Octane Number Gasoline from Basra Low Octane-Number Gas Condensate and Ethanol over Modified Zn/ZSM5 Zeolite Catalyst

Salim

Saed

2023

Bull. Chem. React. Eng. Catal.

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Catalytic transformation of a low-octane number stable gas condensate to high-octane number gasoline (RON: research octane number) is an economically and strategically vital process. In this research, modifying ZSM5 zeolite (80 Si/Al ratio) by impregnation with 2% Zn (Zn/ZSM5) was carried out to increase the selectivity for isomerization and aromatization thereby enhance the octane number. The process was conducted by using stable gas condensate 85 vol% with 15 vol% ethanol in a fixed bed reactor. Zn/ZSM5 and ZSM5 were examined in a pilot scale under different conditions temperature 360-420 °C LHSV1.2-2 h−1, pressure 5 bar. Catalysts were characterized before and after Zn loading using Fourier Transform Infra Red (FT-IR), Brunauer-Emmett-Teller (BET), X-ray Diffraction (XRD), Scanning Electron Microscope (SEM), Field Emission Scanning Electron Microscope (FESEM), Transmission Electron Microscope (TEM), and N2-adsorption. The SEM, FESEM, and TEM have shown that no change in morphology and metal distribution. The XRD and FTIR characterizations revealed the modified catalysts retained their crystallinity after metal impregnation while N2-adsorption isotherm demonstrates no significant change in porosity. The results of Zn/ZSM5 display an optimum result at 420 °C, 1.2 h−1, 5 bar with enhancement of RON from 60.5 to 89 whereas ZSM5 shows RON enhancement from 60.5 to 82. Post Zn loading, PONA test has shown an increase for iso-paraffin from 45.4 to 47.4%, and aromatics from 10.8 to 14. The findings translate the effectiveness of using Zn on ZSM5 for gas condensate – gasoline transformation. Copyright © 2023 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

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Section: Introductionmentioning

confidence: 99%

Production of High-Octane Number Gasoline from Basra Low Octane-Number Gas Condensate and Ethanol over Modified Zn/ZSM5 Zeolite Catalyst

Salim

Saed

2023

Bull. Chem. React. Eng. Catal.

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“…The Zeoforming process is aimed to improve octane number of gasoline fractions. In this case, due to their unique structure, molecular-sieve and acid properties, zeolites show high activity and selectivity toward reactions of dehydrogenation, isomerization, cracking, oligomerization, and dehydrocyclization of organic molecules. − In comparison to conventional reforming of gasoline fractions, Zeoforming does not require the use of hydrogen. , Another advantage is that Zeoforming is not sensitive toward catalytic poisons, such as sulfur compounds, which are always present in petroleum fractions . There are numerous works dedicated to the gasoline blending technology − and various petroleum refining processes using zeolite catalysts. − However, there is a lack of research on the use of the stable gas condensate (unprocessed and upgraded via Zeoforming) as one of the blending components of commercial gasoline.…”

Section: Introductionmentioning

confidence: 99%

Production of Gasoline Using Stable Gas Condensate and Zeoforming Process Products as Blending Components

et al. 2019

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Zeolites are used as catalysts for a wide range of industrial processes. Due to their microporous structure, the use of zeolites is limited to transformation of light feedstocks. At the same time, light products of oil extraction such as stable gas condensate are burned or returned to the oil reservoir for maintaining reservoir pressure, not being used as a feedstock for the secondary refinery. This work considers the use of the stable gas condensate as a feedstock for the Zeoforming process and the use of the obtained product as one of the blending components of commercial gasoline. After measuring main physicochemical properties and performance characteristics of the stable gas condensate, the Zeoforming process was implemented at a laboratory scale. The use of the stable gas condensate and Zeoforming products as blending components of gasoline was assessed. Applying the software program, recipes for the blending of gasoline were developed. It has been found that the Zeoforming process increases the octane number of the stable gas condensate, allowing for reduction of the gasoline production costs due to replacement of expensive additives.

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Process of Producing High-Octane Motor Fuel Components from Straight-Run Gasolines on Modified Zeolite Catalysts

Khomyakov

Gorshkov

Gerasina

2017

Chem Technol Fuels Oils

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Conversion of gas-condensate straight-run gasolines to high-octane gasolines over zeolite catalysts modified with metal nanopowders

Cited by 9 publications

References 4 publications

Production of High-Octane Number Gasoline from Basra Low Octane-Number Gas Condensate and Ethanol over Modified Zn/ZSM5 Zeolite Catalyst

Production of High-Octane Number Gasoline from Basra Low Octane-Number Gas Condensate and Ethanol over Modified Zn/ZSM5 Zeolite Catalyst

Production of Gasoline Using Stable Gas Condensate and Zeoforming Process Products as Blending Components

Process of Producing High-Octane Motor Fuel Components from Straight-Run Gasolines on Modified Zeolite Catalysts

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