Oxidation of coal in industrial conditions. 2. Modification of the plastic and viscous properties on oxidation

Мірошниченко, Д. В.; Desna, N. A.; Kaftan, Yu. S.

doi:10.3103/s1068364x14100056

Cited by 14 publications

(4 citation statements)

References 3 publications

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“…наук, проф., професор кафедри органічної хімії Харківського національного університету імені В. Н. Каразіна (за згодою); The coke industry is one of the essential industries and provides coke to ferrous metallurgy and several other sectors. Using coking, the chemical processing of hard coal of different grades and levels of oxidation is carried out [1].…”

Section: склад оргкомітетуunclassified

Modeling of coke distribution in a dry quenching zone

Miroshnichenko,

Kravchenko,

Stelmachenko

2023

Бекетівські Хімічні Читання. Теорія Та Практика Кризових Ситуацій

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Саввова О. В.  д-р техн. наук, проф. кафедри хімії та інтегрованих технологій Харківського національного університету міського господарства імені О. М. Бекетова; Гуріна Г. І.  канд. хім. наук, зав. кафедри хімії та інтегрованих технологій Харківського національного університету міського господарства імені О. М. Бекетова; Фесенко О. І.  канд. техн. наук, ст. викладач кафедри хімії та інтегрованих технологій Харківського національного університету міського господарства імені О. М. Бекетова; Пилипенко О. І.  канд. техн. наук, доц. кафедри хімії та інтегрованих технологій Харківського національного університету міського господарства імені О. М. Бекетова; Зайцева І. С.  канд. хім. наук, доц. кафедри хімії та інтегрованих технологій Харківського національного університету міського господарства імені О. М. Бекетова. Б42 Бекетівські хімічні читання. Теорія та практика кризових ситуацій : матеріали Міжнар. конф. для молодих вчених, аспірантів та магістрів, Харків, 7-9 листоп. 2023 р. / Харків. нац. ун-т міськ. госп-ва ім. О.

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Section: склад оргкомітетуunclassified

Modeling of coke distribution in a dry quenching zone

Miroshnichenko,

Kravchenko,

Stelmachenko

2023

Бекетівські Хімічні Читання. Теорія Та Практика Кризових Ситуацій

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“…The changes in the situation on the global coal market and the diversification of importers of coking coals set a task for the national industry to ensure the work continuity of Polish coking plants. The research conducted by Miroshnichenko et al [1], in different seasons, suggests that in winter the same coal blends improve their thermoplastic and coke-making properties. Our previous research, conducted on a frozen high-volatile coal, showed that after defrosting this coal significantly improves its thermoplastic properties and, during carbonization, forms the gas-saturated zone in the plastic layer [2].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Coal Tar Pitches on Thermal Behaviour of a High-Volatile Bituminous Polish Coal

Zubkova

Strojwas

2022

Materials

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The influence of three coal tar pitches (CTPs), having softening points at 86, 94, and 103 °C, on the thermal behaviour of a defrosted high-volatile coal during co-carbonization and co-pyrolysis was studied. The following research techniques were used: X-raying of the coked charge, TG/FT-IR, ATR and UV spectroscopies, extraction, SEM, STEM, and XRD. It was determined that CTP additives change the structure of the coal plastic layer, the thickness of its zones, and the ordering degree of the structure of semi-cokes to a different extent and independently from their softening points. The softening points of CTPs do not influence the composition and yield of volatile products emitted from blends with pitch as well as the composition, structural-chemical parameters, and topological structure of material extracted from coal blends. It is suggested that such a lack of existence of any correlation between the softening points of CTPs and the degree of their influence on the thermal behaviour of coal was caused by the presence of the atoms of metals (Fe and Zn) in the CTPs. These atoms change the course of the carbonization of the CTPs themselves and their influence on organic substance of coal in blends with CTPs.

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“…The coke industry is one of the essential industries and provides coke to ferrous metallurgy and several other sectors. Using coking, the chemical processing of hard coal of different grades and levels of oxidation is carried out. , Together with coke, high-calorie coke gas and liquid products containing various valuable substances, primarily aromatic ones, are obtained. − The main areas of coke application include iron smelting, the foundry industry, recovery of non-ferrous ores, and sintering of charge materials. − …”

Section: Introductionmentioning

confidence: 99%

Modeling of Coke Distribution in a Dry Quenching Zone

et al. 2023

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Herein, a method for the coke dry quenching (CDQ) process has been proposed and its optimization has been carried out, which will minimize the disadvantages of this process. This optimization was carried out to develop a technology for uniform coke distribution in the quenching chamber. A model of the real charging device for quenching coke from the Ukrainian enterprise PrJSC "Avdiivka Coke" was developed, and several shortcomings of its operation were shown. It is proposed to use a coke distributor in the form of a bell and a modified bell (specially shaped holes). Graphic mathematical models of the operation of these two devices were developed, and the efficiency of the last of the developed distributors was shown.

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Oxidation of coal in industrial conditions. 2. Modification of the plastic and viscous properties on oxidation

Cited by 14 publications

References 3 publications

Modeling of coke distribution in a dry quenching zone

Modeling of coke distribution in a dry quenching zone

The Influence of Coal Tar Pitches on Thermal Behaviour of a High-Volatile Bituminous Polish Coal

Modeling of Coke Distribution in a Dry Quenching Zone

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