Oxidative steam reforming of methane over Ni/α-Al2O3 modified with trace Pd

Methane oxy-steam reforming over a highly efficient Ni/Al2O3 nanocatalyst prepared by microwave-assisted impregnation method

An alumina-supported nickel catalyst was prepared by impregnation of Ni2+ solution onto mesoporous alumina under microwave irradiation (denoted as M-Ni/Al2O3). For comparison, a catalyst with the same nickel content was prepared by conventional impregnation method (denoted as UM-Ni/Al2O3). Both M-Ni/Al2O3 and UM-Ni/Al2O3 catalysts were applied to the syngas (H2 + CO) production by methane oxy-s...

From natural gas to ethylene: a study on combining oxidative coupling of methane with steam reforming

Highly Efficient Methane Reforming over a Low-loading Ru/γ-Al2O3 Catalyst in a Pd-Ag Membrane Reactor

ratios. In this study, an ultra-low loading (0.15 wt%) Ru/γ-Al2O3 catalyst was implemented in a lab-scale membrane reformer, using a supported 5μm Pd-Ag film membrane. Methane conversions above 90% were achieved at 650 °C, 8 bar, and H2O/CH4 = 2, 3 with contact times of ca. 10 s. The system generated up to 3.5 mol of ultra-pure H2 per mol of CH4 fed, with a maximum power density of 0.9 kW/L. No...

Simulation of a Solid Oxide Fuel Cell with External Steam Methane Reforming and Bypass

Fuel flexibility is a significant advantage of solid oxide fuel cells (SOFCs) and can be attributed to their high operating temperature. The eligibility of a combined heat and power (CHP) system has been investigated as a new power generation methode, in this study. Natural gas fueled SOFC power systems via methane steam reforming (MSR) yield electrical conversion efficiencies exceeding 50% and...

Improved Stability of Pd/Al2O3 Prepared from Palladium Nanoparticles Protected with Carbosilane Dendrons in the Dimethyl Ether Steam Reforming Reaction

The dimethyl ether steam reforming reaction to generate hydrogen was tested over 1 wt % Pd/Al2O3 catalysts prepared from different precursors. The conventional catalyst prepared by incipient wetness impregnation from palladium nitrate underwent strong deactivation under reforming conditions at 823 K because of metal sintering and carbon deposition. The same occurred over the catalyst prepared f...