New Catalytic Systems for Hydrofining and Dearomatization Processes of Oil Fractions

Yunusov, M. P.; Djalаlova, Sh.B.; Nasullaev, Kh.A.; Gulyamov, Sh.T.; Isaeva, Nurkhon; Mirzaeva, Elena

doi:10.1515/cse-2016-0003

Cited by 4 publications

(6 citation statements)

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“…However, it becomes more difficult to process such heavy hydrocarbons on traditional catalysts. In the oil refining industry, deep hydrotreating and hydroisomerization of oil fractions are increasingly used to produce high-quality motor fuels [9][10][11][12][13][14][15][16]. Oil produced in the oil fields of the Republic of Kazakhstan is characterized by a high content of sulfur.…”

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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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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“…At present, the development of technologies for processing oil residues is relevant and promising, which is associated with an increase in the share of hard-to-recover oil reserves: heavy and high-viscosity oils in the world. This, in turn, forces refineries to select carefully the available technologies for processing oil residues and increase the share of heavy oil raw materials in the total volume of oil-processing feedstock [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20]. 40-45% of all high-octane gasoline is produced at catalytic cracking plants with a steamer.…”

Section: Introductionmentioning

confidence: 99%

“…The fuel oil can be further processed to produce gas oil by vacuum distillation [54,55]. 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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“…The oil and gas processing industry along with the petrochemical and chemical industries, is a labor-intensive production and it is accompanied by the formation of various wastes that have a negative impact on the environment. In order to involve alumina waste from polyeth-ylene production for the industrial and economic circulation, the possibility of complex processing of this technogenic raw material into the followings is proved: 1) fresh adsorbent Uz-AD-1 for purifying hydrogen from chlorine-containing impurities at a naphtha reforming unit was proved [1]; 2) a component of carriers of catalysts for hydrotreating, prehydrotreating and demetallization of heavy oil feedstock [2]; 3) pseudoboehmite for the synthesis of an adsorbent of a protective layer for the process of oxidative conversion of hydrogen sulfide [3]. The adsorbent Uz-AD-1, which was developed by us, as well as its imported counterparts, is inevitably turned into a waste category after 1-2 years of operation.…”

Section: Introductionmentioning

confidence: 99%

Complex Processing of Adsorbent Used in the Purification of Hydrogen-Containing Gas

Ibodullaev

Isaeva²,

Khodjiev

et al. 2021

Bull. Chem. React. Eng. Catal.

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The problems of processing spent adsorbents with a high concentration of chemisorbed chlorine-containing compounds for their reuse are studied in this article. The genesis of the phase composition and morphology at all technological stages of thermochemical regeneration of the spent adsorbent - Axstrap-860 by means of alkaline modification with a combined solution of sodium and potassium hydroxides has been tested by diffractometry and elemental analysis. The results show that the formation of a layer with an increased concentration of alkali metals in the form of the corresponding carbonates and NaOH on the surface of the granules and in the volume of sodium and potassium aluminates provides adsorption of HCl, which are slightly inferior to the fresh adsorbent. The conditions for the removal of halogen-containing substances from technogenic raw materials with the subsequent isolation of useful products have been optimized: (1) crystalline NaCl intended for the preparation of electrolyte for electrode boilers and steam generators; (2) a mixture of chlorides and hydroxochlorides of aluminum tested in the process of coagulation purification of turbid natural and waste waters; (3) pseudoboehmite for the production of an adsorbent-desiccant and the synthesis of magnesium-aluminum spinel using the technology of destruction-epitaxial transformation, and a promising carrier for catalysts for steam reforming of hydrocarbons. Copyright © 2021 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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New Catalytic Systems for Hydrofining and Dearomatization Processes of Oil Fractions

Cited by 4 publications

References 0 publications

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

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

Complex Processing of Adsorbent Used in the Purification of Hydrogen-Containing Gas

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