Formation kinetics of hydrocarbon compounds in the vacuum gas oil oxycracking process

Гусейнова, Э. А.; Adzhamov, K. Yu.; Мурсалова, Л. А.; Safarova, S. R.

doi:10.1007/s11144-020-01831-7

Cited by 3 publications

(5 citation statements)

References 16 publications

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“…As we have shown in previous works [4][5][6], one of the main advantages of oxycracking in comparison with traditional catalytic cracking is an increase in conversion by almost 10% (69.42% under oxycracking conditions at 500°, 1% oxidation state, contact time 1.7 sec, 900 sec duration versus 61.3% with the traditional one), which is attractive from an economic point of view, since it is known that an increase in this indicator by every 1% leads to an increase in profit by $0.10 per barrel of raw materials at [7][8][9][10].…”

Section: Introductionsupporting

confidence: 64%

“…Quantitative hydrocarbon analysis was carried out in a system consisting of an Agilent 6890N gas chromatograph interfaced with an Agilent 5975 high-performance mass selective detector (Agilent Technologies, USA). Conditions for chromatographic analysis are given in [4][5][6]. WILLEY and NIST libraries were used as spectral databases.…”

Section: Methodsmentioning

confidence: 99%

“…A fundamentally new approach to the processing of liquid heavy oil fractions can be oxidative catalytic cracking -oxycracking based on the oxidation of heavy oil fractions with oxygen [4][5][6]. It is a complex of catalytic thermochemical transformations of hydrocarbons in the presence of oxygen, resulting in a process of cracking and oxidation reactions occurring simultaneously and affecting each other.…”

Section: Introductionmentioning

confidence: 99%

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Hydrocarbon composition of liquid products of catalytic oxy-cracking of vacuum gasoil

Guseinova,

Hasanov,

Shikhiyev

2023

BIO Web Conf.

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The hydrocarbon composition of liquid products of oxycracking of vacuum gas oil obtained in the presence of a zeolite-containing catalyst has been studied. It has been established that the group hydrocarbon composition of the liquid oxycracking catalyzate is significantly affected by the process parameters. When considering the influence of the process temperature, it was found that the concentration of C5-C9 and C10+ alkanes has an opposite temperature dependence: the C5-C9 yield passes through a maximum at a temperature of 500°C, while for C10+ it is a minimum temperature; there is a linear relationship between the temperature and the yield of unsaturated; the yield of naphthenes gradually decreases with increasing temperature; elevated temperatures contribute to an increase in the total yield of aromatic hydrocarbons. When varying the duration of the process, it was revealed: within 900 seconds from the beginning of the process, the most significant decrease in concentration was noted for aromatic hydrocarbons. The low oxidation state of 0.5% contributes to the intensive conversion of high molecular weight alkanes and aromatic hydrocarbons with long side chains; the concentration of oxygen-containing compounds raises with an increase in the degree of oxidation to 1%, passing through a maximum. The contact time with the catalyst had a complex effect on the hydrocarbon composition of the liquid products of vacuum gas oil oxycracking: a short contact time contributes to a decrease in the concentration of high molecular weight paraffinic and naphthenic hydrocarbons and an increase in aromatic hydrocarbons; with a subsequent increase to 2 s, it drops sharply. The obtained data made it possible to establish the fundamental distinguishing features of the catalytic oxycracking of vacuum gas oil from the traditional catalytic and noncatalytic oxidative ones, and also to propose a list of reactions occurring during the catalytic oxycracking of vacuum gas oil.

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Section: Introductionsupporting

confidence: 64%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Hydrocarbon composition of liquid products of catalytic oxy-cracking of vacuum gasoil

Guseinova,

Hasanov,

Shikhiyev

2023

BIO Web Conf.

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“…Many laboratory and pilot studies have confirmed the possibilities of intensification of the catalytic cracking process [1][2][3][4][5][6][7][8]. The main ways to improve the technical and economic indicators of catalytic cracking units are as follows:…”

Section: Introductionmentioning

confidence: 99%

“…Catalytic cracking in the presence of oxygen (oxycracking) is a new and promising strategy for the processing of heavy petroleum fractions [5][6][7]. In this process, based on traditional technology, fractions with oxygen-containing compounds can be obtained.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Oxygen-containing Additives in Feedstock on the Performance of the Catalytic Cracking Process

Guseinova¹,

Safarova²

2022

Catal Res

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In this study, we found that adding catalytic cracking feedstock, vacuum gas oil, and naphthenic acids in the amount of 0.005–0.0075% vol. increased the liquid target fractions, i.e., gasoline and light gas oil. The decrease in the yield of hydrocarbon gas at a practically constant degree of conversion of the raw material indicated a small proportion of the reactions of re-cracking of the resulting products. This also indicated the resource-saving nature of the process, allowing a larger amount of gasoline fraction and light gas oil to be obtained, as well as, reducing the amount of coke formed on the catalyst at a constant volume of processed feedstock.

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Catalytic Vacuum Gas Oil Oxycracking in Presence of Metal Zeolite Catalysts

Guseinova,

Rasulov

2024

Chem Technol Fuels Oils

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Formation kinetics of hydrocarbon compounds in the vacuum gas oil oxycracking process

Cited by 3 publications

References 16 publications

Hydrocarbon composition of liquid products of catalytic oxy-cracking of vacuum gasoil

Hydrocarbon composition of liquid products of catalytic oxy-cracking of vacuum gasoil

The Effect of Oxygen-containing Additives in Feedstock on the Performance of the Catalytic Cracking Process

Catalytic Vacuum Gas Oil Oxycracking in Presence of Metal Zeolite Catalysts

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