TY - JOUR
T1 - Partial oxidation of dimethyl ether over various supported metal catalysts
AU - Wang, Shizhong
AU - Ishihara, Tatsumi
AU - Takita, Yusaku
N1 - Funding Information:
The authors acknowledge the financial support by Grant-in-Aid for The Development of Innovative Technology for New Millennium from Ministry of Education, Culture, Sports, Science, and Technology. The financial support for Dr. Wang from Venture Business Laboratory in Oita University is also appreciated.
PY - 2002
Y1 - 2002
N2 - Partial oxidation of dimethyl ether (DME) on various metal catalysts was investigated. DME was highly active for oxidation and could be partially oxidized into CO and H2 at a temperature lower than 600 K on most of the examined supported metal catalysts. The products of partial oxidation of DME depended strongly not only on the metal catalyst but also on the oxide support. Formation of CO, H2, CH4, HCHO, CO2, and H2O were observed on Al2O3-supported catalysts. However, no HCHO was formed on the catalysts supported on SiO2, MgO, Y0.16Zr0.84O2 (YSZ), Ce0.85Sm0.15O3, and LaGaO3 based oxide, i.e. La0.8Sr0.2Ga0.8Mg0.15Co0.05 O3 (LSGMC). The activity to partial oxidation of DME on catalysts supported on Al2O3 increased in the order of Ni > Rh > Co ≫ Ru > Fe > Pt ≫ Ag. In particular, Ni supported on LaGaO3 based oxide was active and selective for partial oxidation of DME into synthesis gas. Effects of reaction conditions were further studied on Ni/LSGMC. Selectivity to CO and H2 increased with decreasing contact time. Therefore, primary products of this reaction are CO and H2 and the byproduct CH4 seems to be a secondary product. A small amount of coke was formed on Ni/LSGMC at low reaction temperatures; however, the amount was tiny at high temperatures.
AB - Partial oxidation of dimethyl ether (DME) on various metal catalysts was investigated. DME was highly active for oxidation and could be partially oxidized into CO and H2 at a temperature lower than 600 K on most of the examined supported metal catalysts. The products of partial oxidation of DME depended strongly not only on the metal catalyst but also on the oxide support. Formation of CO, H2, CH4, HCHO, CO2, and H2O were observed on Al2O3-supported catalysts. However, no HCHO was formed on the catalysts supported on SiO2, MgO, Y0.16Zr0.84O2 (YSZ), Ce0.85Sm0.15O3, and LaGaO3 based oxide, i.e. La0.8Sr0.2Ga0.8Mg0.15Co0.05 O3 (LSGMC). The activity to partial oxidation of DME on catalysts supported on Al2O3 increased in the order of Ni > Rh > Co ≫ Ru > Fe > Pt ≫ Ag. In particular, Ni supported on LaGaO3 based oxide was active and selective for partial oxidation of DME into synthesis gas. Effects of reaction conditions were further studied on Ni/LSGMC. Selectivity to CO and H2 increased with decreasing contact time. Therefore, primary products of this reaction are CO and H2 and the byproduct CH4 seems to be a secondary product. A small amount of coke was formed on Ni/LSGMC at low reaction temperatures; however, the amount was tiny at high temperatures.
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U2 - 10.1016/S0926-860X(01)00985-1
DO - 10.1016/S0926-860X(01)00985-1
M3 - Article
AN - SCOPUS:0035999478
SN - 0926-860X
VL - 228
SP - 167
EP - 176
JO - Applied Catalysis A: General
JF - Applied Catalysis A: General
IS - 1-2
ER -