Effect of high petroleum coke additions on metallurgical coke quality and optical texture

Malaquias, Bruno; Flores, Ismael Vemdrame; Bagatini, Maurício Covcevich

doi:10.1590/0370-44672019730097

Cited by 2 publications

(3 citation statements)

References 13 publications

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“…8 − 10 As a production alternative for conventional coarse petroleum coke at delayed coking units, production of petroleum coking additives is suggested. 11 , 12 …”

Section: Introductionmentioning

confidence: 99%

“…Analysis of the results presented in studies − provides an insight that in the future, the replacement of most hydrocarbon resources with alternatives is impossible, so feedstock resources will be relevant for their use in processing. The most in-demand thermal processing of heavy petroleum residues in the world is delayed coking; this process makes it possible to extent petroleum processing to produce commodities at the oil refinery plant up to 98%. , In 2021, the total crude material capacity of the delayed coking units in Russia was about 13.6 million tons. , Using this process, the light petroleum product output can be increased, as well as the commodity assortment can be expanded with carbon materials. − As a production alternative for conventional coarse petroleum coke at delayed coking units, production of petroleum coking additives is suggested. , …”

Section: Introductionmentioning

confidence: 99%

“…8−10 As a production alternative for conventional coarse petroleum coke at delayed coking units, production of petroleum coking additives is suggested. 11,12 Petroleum coke, which is a potential replacement for coking coals in the production of metallurgical coke, has received the name of a petroleum coking additive in Russia and the CIS countries. A petroleum coking additive is a carbon bottom product of a delayed coking unit at petroleum refineries, which is obtained under a "softer" thermal regime (455−475 °C) than petroleum coke (495−505 °C).…”

Section: Introductionmentioning

confidence: 99%

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Technology of Producing Petroleum Coking Additives to Replace Coking Coal

et al. 2021

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Coke chemical companies often have a deficit of coals of particularly valuable grades, the coking coals. This work studies the opportunity of producing petroleum coking additives using delayed coking during heavy petroleum residue processing. Experiments for the production of a carbon material were conducted using three kinds of heavy petroleum residues of the oil refinery plant Ltd Kinef: the vacuum residue from crude atmospheric and vacuum distillation units (VR1), the vacuum residue from the vacuum distillation hydrocracking unit (VR2), and the visbreaker residue from the visbreaking unit (VR3). For the produced carbon material, the quality indicators were determined, and X-ray diffraction, thermogravimetric, and differential thermal analyses were conducted. The petroleum coking additive produced instead of the typical petroleum coke under a milder temperature regime had the required quality indicators, particularly, the volatile-matter yield within the range from 15 to 25 wt %, to be used in metallurgical production for partial replacement of coking coals in the charge to produce metallurgical coke.

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“…8 − 10 As a production alternative for conventional coarse petroleum coke at delayed coking units, production of petroleum coking additives is suggested. 11 , 12 …”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Technology of Producing Petroleum Coking Additives to Replace Coking Coal

et al. 2021

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The Influence of Organic and Inorganic Additives on the Specific Electrical Resistance of Coke

Miroshnichenko,

Borisenko,

Koval

et al. 2024

ChChT

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This study aimed to evaluate the effect of both inorganic (boron carbide nanopowders and silicon carbide (carborundum) and organic lean (petroleum coke) additives on the quality of coke produced in a laboratory furnace, as well as on its electrical properties. Analyzing the results of the quality assessment of the obtained coke, it can be argued that the addition of a fixed amount (0.25-0.5 wt.%) of non-caking nanoadditives allows to regulate the process in the plastic state in order to increase the coke strength. This modification affects the coke quality and has a significant dependence on the grade composition of the coal charge. The use of nanoadditives is especially important for coal charges with poor coking properties. Adding 5% of petroleum coke to the coal charge leads to an increase in the gross coke yield by 1.2-1.3%; a decrease in coke ash content by 0.2-0.3%; an increase in the total sulfur content in coke by 0.15-0.23%; deterioration in both mechanical (P25 − by 0. 1-0.6%; I10 − by 0.1-0.2%) and coke strength after the reaction (CSR - by 0.6-1.0%), coke reactivity (CRI - by 0.2-0.3%), as well as structural strength (SS by 0.3-0.4%), abrasive hardness (AH by 0.7-1.0 mg) and specific electrical resistance (ρ by 0.002-0.007 Om×cm). The obtained data may indicate an increase in the order degree of the coke structure and the appearance of a larger number of nanostructures. In addition, it should be noted that a sharper deterioration in blast furnace coke quality is observed when using a coal charge characterized by a lower coal content of the Concentrating Factory Svyato-Varvarynska LLC.

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Effect of high petroleum coke additions on metallurgical coke quality and optical texture

Cited by 2 publications

References 13 publications

Technology of Producing Petroleum Coking Additives to Replace Coking Coal

Technology of Producing Petroleum Coking Additives to Replace Coking Coal

The Influence of Organic and Inorganic Additives on the Specific Electrical Resistance of Coke

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