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Titolo:
Steam reforming of methane using a solar simulator controlled by H2O/CH4=1/1
Autore:
Yokota, O; Oku, Y; Arakawa, M; Hasegawa, N; Matsunami, J; Kaneko, H; Tamaura, Y; Kitamura, M;
Indirizzi:
Tokyo Inst Technol, Res Ctr Crbon Recycling & Utilizat, Meguro Ku, Tokyo 1528522, Japan Tokyo Inst Technol Tokyo Japan 1528522 , Meguro Ku, Tokyo 1528522, Japan Univ Shiga Prefecture, Sch Engn, Dept Mat Sci, Hikone, Shiga 5228533, Japan Univ Shiga Prefecture Hikone Shiga Japan 5228533 ne, Shiga 5228533, Japan
Titolo Testata:
APPLIED ORGANOMETALLIC CHEMISTRY
fascicolo: 12, volume: 14, anno: 2000,
pagine: 867 - 870
SICI:
0268-2605(200012)14:12<867:SROMUA>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Keywords:
solar energy; methane reforming; steam reforming; xenon lamp;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
5
Recensione:
Indirizzi per estratti:
Indirizzo: Tamaura, Y Tokyo Inst Technol, Res Ctr Crbon Recycling & Utilizat, Meguro Ku, 2-12-1 Ookayama, Tokyo 1528522, Japan Tokyo Inst Technol 2-12-1 Ookayama Tokyo Japan 1528522 , Japan
Citazione:
O. Yokota et al., "Steam reforming of methane using a solar simulator controlled by H2O/CH4=1/1", APPL ORGAN, 14(12), 2000, pp. 867-870

Abstract

The solar steam reforming of methane (CH4 + H2O = CO + 3H(2)) on an Ni-Al2O3 catalyst has been investigated by maintaining the mole ratio of H2O/CH4 = 1/1 at 650, 750, 850 and 950 degreesC, The mole ratio of H2O/CH4 = 1/1 was adjusted throughout the reactions using a specially fabricated steam generator, where the desired relative humidity for a particular temperature in the methane gas stream was controlled by changing the CH4 flow amount at atmospheric pressure. The stoichiometric steam content in the inlet gases of CH4 and H2O was adjusted by using a specially fabricated steam generator atatmospheric pressure. The reactor was irradiated with a concentrated xenonlamp as a solar simulator at each temperature. The gaseous contents in theoutlet gases from the reactor were estimated from gas chromatography data. The amount of unreacted H2O was calculated using the mass balance equations for atomic hydrogen and atomic oxygen by assuming that inlet gases of CH4+ H2O produce outlet gases of CO, CO2, H-2, CH4 and H2O, and deposition ofcarbon. The carbon deposition on the Ni-Al2O3 catalyst after reactions in the steam reforming of methane at a temperature above 850 degreesC were hardly detected by an elemental analyzer. On the other hand, the unreacted H2Oamount above 850 degreesC was less than 7 mol% among the outlet gases produced. The steam reforming of methane above 850 degreesC can reduce the unreacted H2O and the carbon deposition, and maintain more than 85 % of methaneconversion efficiency by keeping H2O/CH4 = 1/1 under atmospheric pressure. Copyright (C) 2000 John Wiley & Sons, Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 12:32:22