Properties of pitch-like materials obtained using coal extraction
The bituminous coal was extracted with different industrial solvents like coal tar (CT), heavy cycle oil (HCO) and with their blends to determine the influence of solvent type on the extract yield, composition, thermal behavior, properties such as solubility to toluene and quinoline. The extracts ob...
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| Veröffentlicht in: | Carbon Letters 2022-03, Vol.32 (2), p.605-614 |
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| creator | Avid, B. Battsetseg, M. Purevsuren, B. Shiirav, G. Kuznetsov, P. N. Kuznetsova, L. I. Kamenskii, E. S. |
| description | The bituminous coal was extracted with different industrial solvents like coal tar (CT), heavy cycle oil (HCO) and with their blends to determine the influence of solvent type on the extract yield, composition, thermal behavior, properties such as solubility to toluene and quinoline. The extracts obtained at 380 °C represented pitch-like solid matter with the softening points of 72–127 °C depending on the solvent used. They were characterized using the elemental and group analysis, FTIR spectroscopy, TG-DTG thermogravimetry and liquid chromatography for benzo(a)pyrene concentration. Also, maltene fractions of some extracts were studied by GC–MS. The results showed coal dissolution and the properties of the extracts to differ greatly depending on the solvent used. Coal tar was more favorable solvent for coal dissolution than HCO. Good correlation between the extract aromaticity and the content of the toluene insolubles was observed. The maltene fractions of the extracts obtained with CT and CT blended with HCO consisted mainly of polycyclic aromatics, and that obtained with the HCO contained also large amount of aliphatic compounds. It was found that the amount of the carcinogenic benzo(a)pyrene (BaP) in the toluene soluble fractions of the extracts were different depending on the solvents used for extraction. The remarkable result was that the BaP concentrations in all extracts were much lower than in the solvents used. |
| doi_str_mv | 10.1007/s42823-021-00297-4 |
| format | Article |
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N. ; Kuznetsova, L. I. ; Kamenskii, E. S.</creator><creatorcontrib>Avid, B. ; Battsetseg, M. ; Purevsuren, B. ; Shiirav, G. ; Kuznetsov, P. N. ; Kuznetsova, L. I. ; Kamenskii, E. S.</creatorcontrib><description>The bituminous coal was extracted with different industrial solvents like coal tar (CT), heavy cycle oil (HCO) and with their blends to determine the influence of solvent type on the extract yield, composition, thermal behavior, properties such as solubility to toluene and quinoline. The extracts obtained at 380 °C represented pitch-like solid matter with the softening points of 72–127 °C depending on the solvent used. They were characterized using the elemental and group analysis, FTIR spectroscopy, TG-DTG thermogravimetry and liquid chromatography for benzo(a)pyrene concentration. Also, maltene fractions of some extracts were studied by GC–MS. The results showed coal dissolution and the properties of the extracts to differ greatly depending on the solvent used. Coal tar was more favorable solvent for coal dissolution than HCO. Good correlation between the extract aromaticity and the content of the toluene insolubles was observed. The maltene fractions of the extracts obtained with CT and CT blended with HCO consisted mainly of polycyclic aromatics, and that obtained with the HCO contained also large amount of aliphatic compounds. It was found that the amount of the carcinogenic benzo(a)pyrene (BaP) in the toluene soluble fractions of the extracts were different depending on the solvents used for extraction. The remarkable result was that the BaP concentrations in all extracts were much lower than in the solvents used.</description><identifier>ISSN: 1976-4251</identifier><identifier>EISSN: 2233-4998</identifier><identifier>DOI: 10.1007/s42823-021-00297-4</identifier><language>eng</language><publisher>Singapore: Springer Singapore</publisher><subject>Aliphatic compounds ; Aromatic compounds ; Aromaticity ; Benzo(a)pyrene ; Bituminous coal ; Carbon ; Carcinogens ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Coal ; Coal tar ; Dissolution ; Gases ; Hydrocarbons ; Hydrogen ; Liquid chromatography ; Materials Engineering ; Materials Science ; Nanotechnology ; Original Article ; Pyrene ; Quinoline ; Softening points ; Solvents ; Tar ; Thermodynamic properties ; Thermogravimetry ; Toluene</subject><ispartof>Carbon Letters, 2022-03, Vol.32 (2), p.605-614</ispartof><rights>Korean Carbon Society 2021</rights><rights>Korean Carbon Society 2021.</rights><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c347t-8e1af1f8092b07bac2ecce349aa1851f202f43e7ed5b17ac4b5ce0c903deb5b3</citedby><cites>FETCH-LOGICAL-c347t-8e1af1f8092b07bac2ecce349aa1851f202f43e7ed5b17ac4b5ce0c903deb5b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.proquest.com/docview/2932524023?pq-origsite=primo$$EHTML$$P50$$Gproquest$$H</linktohtml><link.rule.ids>314,776,780,21368,21369,21370,21371,23236,27903,27904,33509,33682,33723,33984,34293,43638,43766,43784,43932,44046,64362,64366,72216</link.rule.ids></links><search><creatorcontrib>Avid, B.</creatorcontrib><creatorcontrib>Battsetseg, M.</creatorcontrib><creatorcontrib>Purevsuren, B.</creatorcontrib><creatorcontrib>Shiirav, G.</creatorcontrib><creatorcontrib>Kuznetsov, P. N.</creatorcontrib><creatorcontrib>Kuznetsova, L. I.</creatorcontrib><creatorcontrib>Kamenskii, E. S.</creatorcontrib><title>Properties of pitch-like materials obtained using coal extraction</title><title>Carbon Letters</title><addtitle>Carbon Lett</addtitle><description>The bituminous coal was extracted with different industrial solvents like coal tar (CT), heavy cycle oil (HCO) and with their blends to determine the influence of solvent type on the extract yield, composition, thermal behavior, properties such as solubility to toluene and quinoline. The extracts obtained at 380 °C represented pitch-like solid matter with the softening points of 72–127 °C depending on the solvent used. They were characterized using the elemental and group analysis, FTIR spectroscopy, TG-DTG thermogravimetry and liquid chromatography for benzo(a)pyrene concentration. Also, maltene fractions of some extracts were studied by GC–MS. The results showed coal dissolution and the properties of the extracts to differ greatly depending on the solvent used. Coal tar was more favorable solvent for coal dissolution than HCO. Good correlation between the extract aromaticity and the content of the toluene insolubles was observed. The maltene fractions of the extracts obtained with CT and CT blended with HCO consisted mainly of polycyclic aromatics, and that obtained with the HCO contained also large amount of aliphatic compounds. It was found that the amount of the carcinogenic benzo(a)pyrene (BaP) in the toluene soluble fractions of the extracts were different depending on the solvents used for extraction. The remarkable result was that the BaP concentrations in all extracts were much lower than in the solvents used.</description><subject>Aliphatic compounds</subject><subject>Aromatic compounds</subject><subject>Aromaticity</subject><subject>Benzo(a)pyrene</subject><subject>Bituminous coal</subject><subject>Carbon</subject><subject>Carcinogens</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Coal</subject><subject>Coal tar</subject><subject>Dissolution</subject><subject>Gases</subject><subject>Hydrocarbons</subject><subject>Hydrogen</subject><subject>Liquid chromatography</subject><subject>Materials Engineering</subject><subject>Materials Science</subject><subject>Nanotechnology</subject><subject>Original Article</subject><subject>Pyrene</subject><subject>Quinoline</subject><subject>Softening points</subject><subject>Solvents</subject><subject>Tar</subject><subject>Thermodynamic properties</subject><subject>Thermogravimetry</subject><subject>Toluene</subject><issn>1976-4251</issn><issn>2233-4998</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp9kMtKAzEUhoMoWGpfwNWA62hu00yWpXiDgi66D0l6po2dTsYkBX17oyPqytWBw_edy4_QJSXXlBB5kwRrGMeEUUwIUxKLEzRhjHMslGpO0YQqOceC1fQczVLytkicKMLnE7R4jmGAmD2kKrTV4LPb4c7voTqYDNGbrvRtNr6HTXVMvt9WLpiugrccjcs-9BforC0UzL7rFK3vbtfLB7x6un9cLlbYcSEzboCalrYNUcwSaY1j4BxwoYyhTU1bRlgrOEjY1JZK44StHRBXrtyArS2foqtx7BDD6xFS1i_hGPuyUTPFWc0EKR__UPsQwSS3C52Jv6RgRNaqUGykXAwpRWj1EP3BxHdNif6MVI-R6hKp_opUiyLxUUoF7rfwZ-w_1gfkLXmy</recordid><startdate>20220301</startdate><enddate>20220301</enddate><creator>Avid, B.</creator><creator>Battsetseg, M.</creator><creator>Purevsuren, B.</creator><creator>Shiirav, G.</creator><creator>Kuznetsov, P. 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S.</creator><general>Springer Singapore</general><general>한국탄소학회</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>KROLR</scope><scope>3V.</scope><scope>7XB</scope><scope>88I</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AEUYN</scope><scope>AFKRA</scope><scope>ATCPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>D1I</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>KB.</scope><scope>L6V</scope><scope>M2P</scope><scope>M7S</scope><scope>PATMY</scope><scope>PDBOC</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>PYCSY</scope><scope>Q9U</scope></search><sort><creationdate>20220301</creationdate><title>Properties of pitch-like materials obtained using coal extraction</title><author>Avid, B. ; Battsetseg, M. ; Purevsuren, B. ; Shiirav, G. ; Kuznetsov, P. 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N.</au><au>Kuznetsova, L. I.</au><au>Kamenskii, E. S.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Properties of pitch-like materials obtained using coal extraction</atitle><jtitle>Carbon Letters</jtitle><stitle>Carbon Lett</stitle><date>2022-03-01</date><risdate>2022</risdate><volume>32</volume><issue>2</issue><spage>605</spage><epage>614</epage><pages>605-614</pages><issn>1976-4251</issn><eissn>2233-4998</eissn><abstract>The bituminous coal was extracted with different industrial solvents like coal tar (CT), heavy cycle oil (HCO) and with their blends to determine the influence of solvent type on the extract yield, composition, thermal behavior, properties such as solubility to toluene and quinoline. The extracts obtained at 380 °C represented pitch-like solid matter with the softening points of 72–127 °C depending on the solvent used. They were characterized using the elemental and group analysis, FTIR spectroscopy, TG-DTG thermogravimetry and liquid chromatography for benzo(a)pyrene concentration. Also, maltene fractions of some extracts were studied by GC–MS. The results showed coal dissolution and the properties of the extracts to differ greatly depending on the solvent used. Coal tar was more favorable solvent for coal dissolution than HCO. Good correlation between the extract aromaticity and the content of the toluene insolubles was observed. The maltene fractions of the extracts obtained with CT and CT blended with HCO consisted mainly of polycyclic aromatics, and that obtained with the HCO contained also large amount of aliphatic compounds. It was found that the amount of the carcinogenic benzo(a)pyrene (BaP) in the toluene soluble fractions of the extracts were different depending on the solvents used for extraction. The remarkable result was that the BaP concentrations in all extracts were much lower than in the solvents used.</abstract><cop>Singapore</cop><pub>Springer Singapore</pub><doi>10.1007/s42823-021-00297-4</doi><tpages>10</tpages></addata></record> |
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| subjects | Aliphatic compounds Aromatic compounds Aromaticity Benzo(a)pyrene Bituminous coal Carbon Carcinogens Characterization and Evaluation of Materials Chemistry and Materials Science Coal Coal tar Dissolution Gases Hydrocarbons Hydrogen Liquid chromatography Materials Engineering Materials Science Nanotechnology Original Article Pyrene Quinoline Softening points Solvents Tar Thermodynamic properties Thermogravimetry Toluene |
| title | Properties of pitch-like materials obtained using coal extraction |
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