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Titolo:
Effects of thermal treatment on the composition and properties of air-blown anthracene oils
Autore:
Bermejo, J; Fernandez, AL; Granda, M; Rubiera, F; Suelves, I; Menendez, R;
Indirizzi:
CSIC, Inst Nacl Carbon, Oviedo 33011, Spain CSIC Oviedo Spain 33011CSIC, Inst Nacl Carbon, Oviedo 33011, Spain Univ London Imperial Coll Sci Technol & Med, Dept Chem Engn & Chem Technol, London SW7 2BY, England Univ London Imperial Coll Sci Technol & Med London England SW7 2BY gland
Titolo Testata:
FUEL
fascicolo: 9, volume: 80, anno: 2001,
pagine: 1229 - 1238
SICI:
0016-2361(200107)80:9<1229:EOTTOT>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
SIZE-EXCLUSION CHROMATOGRAPHY; ISOTROPIC PITCH PRECURSORS; SYNTHETIC MESOPHASE PITCH; CARBON-FIBERS GPCF; COAL-TAR; OXIDATIVE STABILIZATION; AROMATIC-HYDROCARBONS; MOBILE-PHASE; CARBONIZATION; PETROLEUM;
Keywords:
air-blown anthracene oil; thermal treatment; carbon precursor;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Engineering, Computing & Technology
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Granda, M CSIC, Inst Nacl Carbon, C Francisco Pintado Fe 26,Apartado 73, Oviedo 33011, Spain CSIC C Francisco Pintado Fe 26,Apartado 73 Oviedo Spain33011 n
Citazione:
J. Bermejo et al., "Effects of thermal treatment on the composition and properties of air-blown anthracene oils", FUEL, 80(9), 2001, pp. 1229-1238

Abstract

Eight parent samples, obtained from a commercial anthracene oil by air-blowing under different conditions, were thermally treated in nitrogen between350 and 390 degreesC for 3-8 h. Changes in the composition, pyrolysis behaviour and microstructure of the resultant cokes were studied by standard procedures (i.e. elemental analysis, softening point, etc.), Fourier transformed infrared spectroscopy, size exclusion chromatography, thermogravimetricanalysis, mass spectrometry and optical microscopy. The results show that thermal treatment causes the removal of hydrogen (mainly aliphatic) and a considerable amount of the oxygenated functionalities created during the air-blowing treatment. As a result, H2O, CO and CO2 are removed and new C-C bonds are formed producing larger molecules with a higher degree of condensation. Consequently, the toluene insolubles, softening point and carbon yieldof the treated samples substantially increase their values. Thermal treatment also improves the quality of samples as carbon precursors and increasesgraphitisability and resistance of the derived cokes to oxidation. (C) 2001 Elsevier Science Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 11/07/20 alle ore 17:37:27