Studying the regularities of oxidative catalytic cracking of vacuum distillates

Shakiyeva, T.V.; Sassykova, L.R.; Dzhatkambayeva, U.N.; Zhakirova, N.K.; Prabhahar, M.; Sendilvelan, S.; Ganesan, M.; Chitra, N. Jaya; Hari, Rajeswari

doi:10.1016/j.matpr.2020.09.642

Cited by 3 publications

(8 citation statements)

References 15 publications

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“…The process was carried out according to the previously developed methodology. 3,5,15,18 The efficiency of the process was defined by the results of X-ray phase analysis and by visual control of the quality of the selected products using a microscope. A vibration magnetometer AMH-500 Hysteresisograph (Italy) was used for magnetic measurements.…”

Section: General Proceduresmentioning

confidence: 99%

“…One of the most promising methods for producing light hydrocarbon fractions is the implementation of catalytic cracking of heavy oil raw materials in the presence of air additives in the reaction medium, i. e. in an oxidizing medium. [16][17][18][19][20][21][22][23] In this work, the hollow microspheres based on fly ash from the Ekibastuz coal deposit (Kazakhstan), produced as a result of the operation of TPP-2 in Almaty (Kazakhstan) and natural Kazakhstan zeolite from Taizhuzgen field were selected and used for the preparation of catalysts. The research was carried out on the development of an effective way of purification of gas emissions from sulfur dioxide and also for oxidative catalytic cracking of fuel oil (with preliminary electromagnetic excitation of hydrocarbon molecules) to obtain light carbon fractions.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and Testing Catalysts Based on Fly Ash From Thermal Power Plants and Natural Zeolite for Gas Emissions Purification and Catalytic Processing of Heavy Oil

Shakiyeva¹,

Sassykova²,

Khamlenko³

et al. 2021

RJC

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In this study, hollow microspheres based on fly ash from the Ekibastuz coal field (Kazakhstan) and natural zeolite from the Taizhuzgen field (Kazakhstan) were used for the synthesis of catalysts. The catalysts were tested in the process of sulfur dioxide oxidation with different SO2 content in the SO2-Ar gas mixture at a flow vortex plant of the "Emulsifier" type with a capacity of 2 m 3 / h. Technology for the oxidation of SO2 with oxygen in an aqueous solution has been developed and the best technological parameters for the selective oxidation of SO2 with the production of sulfuric acid as a product have been determined. The degree of SO2 sorption is reached up to 95%. Also, the prepared catalysts were tested in the process of redox-catalytic cracking of fuel oil (with preliminary electromagnetic excitation of hydrocarbon molecules) to obtain light carbon fractions. The fuel oil of the Amangeldy Gas Processing Plant (AGPP, Kazakhstan) of the M-100 brand was studied as a feedstock. On the optimal catalyst in the products of oxidative cracking of fuel oil, the fraction of light gas oil makes up the main part. The resulting light gas oil contains a significant amount of alpha-olefins, which are scarce raw materials for the production of synthetic additives and oils.

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Section: General Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and Testing Catalysts Based on Fly Ash From Thermal Power Plants and Natural Zeolite for Gas Emissions Purification and Catalytic Processing of Heavy Oil

Shakiyeva¹,

Sassykova²,

Khamlenko³

et al. 2021

RJC

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“…The absorption band at 550-560 cm -1 , which is characteristic of zeolites, is associated with vibrations of the internal bonds of the SiO4 and AlO4 tetrahedra. The IR spectrum of MZC-5 (Figure 7, c) includes a weak absorption band at 620 cm -1 , which is characteristic of cristobalite [8,35,38]. An unidentified small peak at 1620 cm -1 is also visible.…”

Section: Resultsmentioning

confidence: 98%

“…In the modern world, the demand for motor fuels, which must meet international quality standards, is growing more and more every year. In this case, there is a tendency to reduce the reserves of crude oil and the need to process heavy fractions of oil [1][2][3][4][5][6][7][8]. The processing of the raw materials, which contain heavy oil residues, natural bitumen, shale oil, and highly viscous heavy oil, is becoming increasingly important.…”

Section: Introductionmentioning

confidence: 99%

Development<strong> </strong>and Testing of Modified Alumina Catalysts for Hydrotreating Petroleum Gasoline Fraction

Tuktin¹,

Omarova²,

Sassykova³

et al. 2022

Preprint

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The oil produced in the oil fields of the Republic of Kazakhstan contains a high percentage of sulfur. Synthesis and improvement of the properties of catalytic systems for the production of fuels with high octane number and low sulfur content is currently an urgent task for Kazakhstan. In this study, catalytic systems with a new composition based on zeolites with the addition of rare-earth metals (E) and phosphorus (P) have been prepared and tested in the process of the catalytic hydrotreating of straight-run gasoline and gasoline of catalytic cracking. In case of NiO-MoO3-E-P-HZSM-HY-Al2O3 catalyst, the octane rating of the gasoline after hydro-processing was increased to 88-90, which is much higher than for other catalysts. The octane number of straight-run gasoline up to 400°C is a maximum of 90 (Research Method) and 83.7 (Motor Method). At the same time, the sulfur content in the resulting gasoline decreases from 0.0088% to 0.0011%. In the case of catalytic cracking gasoline, the sulfur content is reduced from 0.0134% to 0.0012%. The smallest residual sulfur content in the final product, 0.0005% is revealed in case of catalyst CoO-WO3-E-P-HZSM-HY-Al2O3, and it is 2-4 times lower than for catalysts CoO-MoO3-E-P-HZSM-HY-Al2O3 and NiO-MoO3-E-P-HZSM-HY-Al2O3. These amounts of sulfur residue in raw materials is lower than that required by the Euro-5 Standard. The surface of the prepared catalysts was 211.0-274.0 m2/g, diameter of pores d ≈ 1.5-2.5 nm and d ≈ 7.0 nm. The total pore volume of the catalysts was not higher than 0.28-0.41 ml/g. The catalysts developed in this study can be used for hydrotreating raw materials and producing high-octane gasoline with a low sulfur content, corresponding in its characteristics to the Euro-5 Standard.

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“…Most scientists in the field recognize that the specific properties and complex composition of heavy oils and oil residues do not allow the use of classical processing methods for light oils; such schemes are ineffective or not suitable at all [1,2,4,[14][15][16]. One of the actual methods of intensification of thermal processes of refining of high-viscosity oils is wave action (ultrasonic, acoustic, ultra-frequency) [56][57][58][59][60][61][62][63][64][65].…”

Section: Introductionmentioning

confidence: 99%

Catalytic cracking of M-100 fuel oil: relationships between origin process parameters and conversion products

et al. 2022

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The development of technologies for processing oil residues is relevant and promising for Kazakhstan, since the main oil reserves of hydrocarbons in the country are in heavy oils. This paper describes the study of the influence of technological modes on the yield and hydrocarbon composition of products formed because of cracking of commercial fuel oil and fuel oil M-100 in the presence of air in the reactor. For catalysts preparation, natural Taizhuzgen zeolite and Narynkol clay were used. It was found that the introduction of air into the reaction zone, in which oxygen is the initiator of the cracking process, significantly increases the yield of the middle distillate fractions. In the presence of air, the yield of diene and cyclodiene hydrocarbons significantly increases compared to cracking in an inert atmosphere. According to the data of IR spectral analysis of M-100 grade oil fractions, in addition to normal alkanes, the final sample contains a significant amount of olefinic and aromatic hydrocarbons. On the optimal catalyst, owing to oxidative cracking of fuel oil, the following product compositions (in %) were established: Fuel oil M-100: gas – 0.8, gasoline – 1.1, light gas oil – 85.7, heavy residue – 11.9, loss – 0.5 and total – 100.0%; commodity Fuel oil (M-100): gas – 3.3, gasoline – 8.4, light gas oil – 84.3, heavy residue – 4.0, loss – 0 and total – 100.0%.

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Studying the regularities of oxidative catalytic cracking of vacuum distillates

Cited by 3 publications

References 15 publications

Synthesis and Testing Catalysts Based on Fly Ash From Thermal Power Plants and Natural Zeolite for Gas Emissions Purification and Catalytic Processing of Heavy Oil

Synthesis and Testing Catalysts Based on Fly Ash From Thermal Power Plants and Natural Zeolite for Gas Emissions Purification and Catalytic Processing of Heavy Oil

Development<strong> </strong>and Testing of Modified Alumina Catalysts for Hydrotreating Petroleum Gasoline Fraction

Catalytic cracking of M-100 fuel oil: relationships between origin process parameters and conversion products

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