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Titolo:
Behavior of hydrogen transfer in the hydrogenation of anthracene over activated carbon
Autore:
Zhang, ZG; Yoshida, T;
Indirizzi:
Hokkaido Natl Ind Res Inst, Toyohira Ku, Sapporo, Hokkaido 0628517, Japan Hokkaido Natl Ind Res Inst Sapporo Hokkaido Japan 0628517 0628517, Japan
Titolo Testata:
ENERGY & FUELS
fascicolo: 3, volume: 15, anno: 2001,
pagine: 708 - 713
SICI:
0887-0624(200105/06)15:3<708:BOHTIT>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
MODELING COAL-LIQUEFACTION; AROMATIC-HYDROCARBONS; CATALYTIC CONVERSION; BLACK;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Zhang, ZG Hokkaido Natl Ind Res Inst, Toyohira Ku, 2-17 Tsukisamu Higashi,Sapporo, Hokkaido 0628517, Japan Hokkaido Natl Ind Res Inst 2-17 TsukisamuHigashi Sapporo Hokkaido Japan 0628517
Citazione:
Z.G. Zhang e T. Yoshida, "Behavior of hydrogen transfer in the hydrogenation of anthracene over activated carbon", ENERG FUEL, 15(3), 2001, pp. 708-713

Abstract

The behavior of hydrogen transfer over activated carbon was examined through the hydrogenation of anthracene in the temperature range of 300-400 degreesC with three kinds of hydrogen sources: hydrogen gas, hydrogen-donor tetralin, and the combination of both. With hydrogen gas, the hydrogen transfer rate determined from the distribution of hydrogenated anthracene productsincreased with both hydrogen partial pressure and temperature, while in tetralin it depended on the concentration of hydrogen atoms formed on the surface of activated carbon by the dehydrogenation of tetralin and reached levels at temperatures of 350-400 degreesC comparable to those obtsained in the same temperatures under 6:0 MPa of H-2. When both hydrogen gas and tetralin were used together, the hydrogen transfer rate was higher than each one obtained separately with hydrogen gas alone or tetralin alone, but much lower than the simple sum of both rates in the range of 350-400 degreesC. Simultaneously, the hydrogen formation rate based on the conversion of tetralinin this case was greatly suppressed due to the presence of hydrogen gas and measured to be quite close to the corresponding hydrogen transfer rate. This indicates that the hydrogen transfer in the hydrogenation of anthraceneover activated carbon mainly took place from tetralin to anthracene when both hydrogen gas and tetralin donor were used as hydrogen source together.

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Documento generato il 12/07/20 alle ore 09:45:20