Heat treatment of anthracene oil under pressure

Petrovykh, A. P.; Abaturov, A. L.; Moskalev, I. V.; Kiselkov, Dmitriy; Yakushev, R. M.

doi:10.3103/s1068364x1608007x

Cited by 7 publications

(3 citation statements)

References 15 publications

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“…Table shows that the oil components can be divided into nine classes, i.e., alkyl aromatics, indene compounds, double-ring alkyl aromatics, biphenyl, oxygenated compounds, sulfur-containing compounds, naphthalene and its homologues, fluorene and its homologues, and tricyclic and larger PAHs. The contents of alkyl aromatics and indene compounds significantly decreased after cracking, owing to high-temperature dealkylation. , Moreover, the formation of gaseous hydrocarbons, such as CH 4 , confirmed that alkyl aromatic side chains and benzene rings underwent C–C bond cleavage during cracking, as reported previously, , which reveals that compounds containing aliphatic hydrogens (by dealkylation), acenaphthylene (on account of the double bond in the molecule), and naphthalene (less active than anthracene) broke down most vigorously in anthracene oil. The content of indene compounds was also reduced after cracking, which was ascribed to ring-opening reactions .…”

Section: Resultssupporting

confidence: 81%

Effects of Natural Dolomite Catalysts on Cracking Anthracene Oil

Liang

Zhang

et al. 2017

Energy Fuels

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Natural dolomite catalysts, representing a cheap and environmentally friendly alternative to nickel-based compounds, can be used for the cracking of anthracene oil to form more valuable products. The impact of operating conditions (temperature, water/oil mass ratio, and space velocity) on the distribution and yield of pyrolysis products was investigated in a fixed-bed reactor, providing insights into the mechanism of cracking. The gaseous products were analyzed by gas chromatography; the catalysts were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy; and the pyrolysis oil was analyzed by gas chromatography–mass spectrometry. The obtained results revealed that the gaseous products comprised H2, CO, CO2, CH4, and C2+. In comparison to anthracene oil, the pyrolysis oil contained significantly decreased amounts of alkyl aromatic hydrocarbons and indene compounds as well as an increased content of polycyclic aromatic hydrocarbons, such as naphthalene and phenanthrene. XRD and SEM analyses revealed granular coke deposition on the catalyst surface at a high temperature accompanied by partial conversion of the catalyst to CaCO3, which could be mitigated using high water/oil ratios. Thus, this study demonstrated the influence of reaction conditions on natural-dolomite-catalyzed cracking of anthracene oil, which is important for optimizing industrial production processes.

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Section: Resultssupporting

confidence: 81%

Effects of Natural Dolomite Catalysts on Cracking Anthracene Oil

Liang

Zhang

et al. 2017

Energy Fuels

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“…2 , the C/H ratio of the 1S-CT treated at 360 °C for 3 h was 0.08 lower than that of the 1S-CT treated at 330 °C for 3 h; however, the TI was higher and the QI was similar in the above mentioned conditions. In other words, these results indicate that when the 1S-CT is treated at 360 °C for 3 h, the amount of high molecular weight components corresponding to TI and QI and the amount of low molecular weight components simultaneously increase [ 26 , 28 ].…”

Section: Resultsmentioning

confidence: 99%

Manufacture of high density carbon blocks by self-sintering coke produced via a two-stage heat treatment of coal tar

Kim

Lee

et al. 2019

Heliyon

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High-strength and high-density carbonized carbon blocks from self-sintering coke were manufactured using coal tar and two-stage heat treatments (1st and 2nd stage treatments). First, the molecular weight distribution of the refined coal tar was controlled through a pressured heat treatment (1st stage treatment). Second, the 1st stage heat-treated coal tar (1S-CT) was treated using a delayed coking system (2nd stage treatment) to become the self-sintering coke. Finally, carbon blocks were molded from 2nd stage heat-treated coke (2S-C) and carbonized at 1200 °C for 1 h. Through rapid decomposition of the high molecular weight components in the coal tar at 360 °C in the 1st stage treatment, the molecular weight distribution of coal tar was confirmed to be controllable by the 1st stage treatment. Swelling during carbonization was observed in carbon blocks manufactured from 2S-C containing more than 15 wt% of volatile matter from 150–450 °C. The optimum conditions of the two-stage heat treatments were confirmed to be 300 °C for 3 h and 500 °C for 1 h. The highest density and flexural strength of the carbonized carbon blocks manufactured from 2S-C were 1.46 g/cm3 and 69.2 MPa, respectively.

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“…Для покрытия дефицита каменноугольного пека на российском и мировом рынках для электродной промышленности и производства пековых углеродных волокон наиболее перспективным направлением развития промышленного производства является получение пекоподобных продуктов по технологии термического растворения углей [1,2,3,4].…”

Section: Introductionunclassified

Investigation of the Process of Thermal Dissolution of Coal Grade G

Cherkasova¹,

Nevedrov²,

Papin³

2023

Ugol'

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the article discusses the process of thermal dissolution of the organic mass of coal grade g in anthracene oil. the target products of this process are baking-like products. Baking products are valuable raw materials for the production of carbon fibers, in the production of electrodes and other carbon products. When conducting studies of thermal dissolution of coal grade g, anthracene oil, a product of coal tar processing, was used as a solvent. the final temperature of the thermal dissolution process varied in the range of 350-400 o C. for the preparation of the coal-oil mixture, a ratio of 30% coal grade g and 70% anthracene oil was used. for the resulting baking-like product, its qualitative characteristics were determined. Based on the results obtained, the possibility of using this product is evaluated.

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Heat treatment of anthracene oil under pressure

Cited by 7 publications

References 15 publications

Effects of Natural Dolomite Catalysts on Cracking Anthracene Oil

Effects of Natural Dolomite Catalysts on Cracking Anthracene Oil

Manufacture of high density carbon blocks by self-sintering coke produced via a two-stage heat treatment of coal tar

Investigation of the Process of Thermal Dissolution of Coal Grade G

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