Emission of carcinogenic polyaromatic hydrocarbons in the carbonization of coal pitch

Marakushina, E. N.; Khramenko, S. A.; Golounin, A. V.

doi:10.3103/s1068364x10030063

Cited by 7 publications

(2 citation statements)

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“…In the aluminum business with the use of coal tar pitch, there is an additional risk factor related to envi ronmentally hazardous production because of the for mation of a large number of harmful PAHs, including benzo(a)pyrene [10,11]. The Soderberg technology, which is used for the production of 68% aluminum in Russia, is characterized by an increased environmen tal hazard.…”

Section: Methods For the Preparation Of Coal Tar Pitchmentioning

confidence: 99%

Methods for the preparation of coal-tar pitch

et al. 2015

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The production of tar pitches and binding agents for the manufacture of high quality carbon materials is considered. The progressive scarcity of coal tar pitch is noted. The necessity of a search for new sources of raw materials and alternative methods for the production of coal tar pitch substitutes is substanti ated. The capabilities of different methods for the thermal and thermochemical processing of coals with the production of pitch like products are considered. The prospects of a low temperature process of the thermal dissolution of coals under mild conditions for the preparation of pitch products in a yield much higher that the yield of pitch upon coking are demonstrated.

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Section: Methods For the Preparation Of Coal Tar Pitchmentioning

confidence: 99%

Methods for the preparation of coal-tar pitch

et al. 2015

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“…Important properties of coal ash, which determine the direction of its use, are the proportion of fractions in the composition of the coal ash group and the softening point [4]. However, it is known [5][6][7] that in the process of obtaining and processing coal ash a lot of pollutants are formed. Therefore, the problem of development of new, technological and environmentally safe methods of processing in this industry is acute [8].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive studies of coal tar pitch components

Sozinov,

Zakharov,

Popova

2024

BIO Web Conf.

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By methods of electron microscopy, adsorption porometry, NMR, IR- EPR spectroscopy, X-ray diffractometry, thermal analysis, chromatography-mass spectrometry the composition, structure and particle morphology of β- and α2-fraction powders of medium-temperature coal ash were investigated. The morphology and structure of coke residues depending on the heating temperature were investigated. Polyaromatic hydrocarbons in the composition of volatile products of coal ash thermolysis were found to be formed mainly by the decomposition of components of β-fraction. The results obtained are of interest from the point of view of the feasibility of using the isolated fractions of coal ash as precursors for the production of functional carbon materials.

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