Methane conversion at low temperature: the combined application of catalysis and non-equilibrium plasma

被引:88
作者
Pietruszka, B [1 ]
Heintze, M [1 ]
机构
[1] Inst Low Temp Plasma Phys INP Greifswald, D-17489 Greifswald, Germany
关键词
syngas; plasma catalysis; nickel catalyst; plasma induced reforming;
D O I
10.1016/j.cattod.2004.04.021
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
The combined oxygen-steam reforming of methane was investigated in a non-thermal plasma or dielectric-barrier discharge (131313). It was found that only CH4 and O-2 were converted in the plasma, whereas no net conversion of water was detected. A comparison was made between the DBD reactor with an empty discharge gap and with the discharge gap filled by a dielectric material. In the latter arrangement a Ni catalyst on alpha-alumina was compared with the pure catalyst support. Experimental data are also compared with thermodynamic equilibrium calculations. Plasma activation leads to CO as a main product, which then however oxidises to CO2 when the catalyst becomes active (>300degreesC). The addition of steam to the reactants results in the enhanced formation of hydrogen under conditions where oxygen is completely converted. (C) 2004 Published by Elsevier B.V.
引用
收藏
页码:151 / 158
页数:8
相关论文
共 27 条
[1]   Non-thermal plasma application to the abatement of noxious emissions in automotive exhaust gases [J].
Hammer, T .
PLASMA SOURCES SCIENCE & TECHNOLOGY, 2002, 11 (3A) :A196-A201
[2]  
HAMMER T, 2001, 46 FUEL CHEM DIV
[3]  
HAMMER T, 2002, P HAKONE 8 TATR EST, P196
[4]   Plasma catalytic conversion of methane into syngas: the combined effect of discharge activation and catalysis [J].
Heintze, M ;
Pietruszka, B .
CATALYSIS TODAY, 2004, 89 (1-2) :21-25
[5]  
Holtzer F., 2002, APPL CATAL B-ENVIRON, V38, P163
[6]   Dielectric-barrier discharges: Their history, discharge physics, and industrial applications [J].
Kogelschatz, U .
PLASMA CHEMISTRY AND PLASMA PROCESSING, 2003, 23 (01) :1-46
[7]   CO2 reforming of methane by the combination of dielectric-barrier discharges and catalysis [J].
Kraus, M ;
Eliasson, B ;
Kogelschatz, U ;
Wokaun, A .
PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2001, 3 (03) :294-300
[8]  
KRAUS M, 2001, THESIS SWISS FEDERAL
[9]   Combined plasma-catalytic processing of nitrous oxide [J].
Krawczyk, K ;
Mlotek, M .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2001, 30 (3-4) :233-245
[10]   Methane conversion to higher hydrocarbons in a corona discharge over metal oxide catalysts with OH groups [J].
Liu, CJ ;
Marafee, A ;
Mallinson, R ;
Lobban, L .
APPLIED CATALYSIS A-GENERAL, 1997, 164 (1-2) :21-33