Methane catalytic decomposition integrated with on-line Pd membrane hydrogen separation for fuel cell application
MetadataShow full item record
In this study, 70 wt.% Ni/Al2O3 was prepared via a glycine-nitrate combustion method and applied as the catalyst for decomposing methane into hydrogen and carbon nanotubes that can be applied in polymer-electrolyte-membrane fuel cell (PEMFC). The methane conversion and the hydrogen content in the effluent gas reached 71 and 83%, respectively, at an operating temperature of 700 °C under ambient pressure. I-V tests demonstrated that the methane is inert to the electro-catalyst and acts mainly as a diluting gas. A porous Al2O3-supported thin-film Pd membrane was integrated with the catalytic methane decomposition process. Due to the high initial hydrogen content, even an imperfect Pd membrane, effectively increased the hydrogen content to >98%, which resulted in only a slight performance loss of ~10% compared to the application of pure hydrogen as the fuel. The advantages, such as continuous hydrogen separation, simple process, high reliability and value-added by-product, all make this process highly attractive for future PEMFC application. © 2009 Professor T. Nejat Veziroglu.
Showing items related by title, author, creator and subject.
H2/CH4/CO2-tolerant properties of SrCo0.8Fe0.1Ga0.1O3 − δ hollow fiber membrane reactors for methane partial oxidation to syngasMeng, X.; Bi, X.; Meng, B.; Yang, N.; Tan, X.; Liu, Lihong; Liu, Shaomin (2015)Oxygen permeable ceramic membranes have potential applications as the high temperature membrane reactors for cost-effective syngas production from methane partial oxidation. The prerequisite to realize this potential is ...
Microscopic model of carbonaceous nanoporous molecular sieves—anomalous transport in molecularly confined spacesKowalczyk, Poitr; Gauden, P.; Terzyk, A.; Furmaniak, S. (2010)To model the equilibrium and transport properties of carbonaceous molecular sieves (CMS)(i.e., carbon membranes, coals, activated carbons with ink-bottle pore geometry, etc.) the newmicroscopic turbostratic carbon pore ...
Highly Stable External Short-Circuit-Assisted Oxygen Ionic Transport Membrane Reactor for Carbon Dioxide Reduction Coupled with Methane Partial OxidationZhang, K; Liu, Lihong; Sunarso, J.; Yu, H.; Pareek, Vishnu; Liu, Shaomin (2014)A membrane reactor allows for simultaneous separation and reaction, and thus, can play a good role to produce value-added chemicals. In this work, we demonstrated such a membrane reactor based on fluorite oxide samarium-doped ...