Morphology of iron reduced from wustite with H2-H2O-H2S mixtures.

Equilibrium of EuS with Gas Mixtures of H2S, H2 and CO,

für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

Biological H2 from Fuel Gases and from H2o

When photosynthetic bacteria Rhodocyclus gelatinosus and Rhodospirillum rubrum were cultured with CO in the gas phase, a CO-linked pathway was quickly induced. These bacteria perform a water-gas shift reaction with CO and H2O, and produce H2 and CO2 in nearly stoichiometric quantities. The hydrogenase, a terminal enzyme of the linked pathway, is extremely O2 resistant. In order to further inves...

Rotationally resolved photoionization of polyatomic hydrides: CH3, H2O, H2S, H2CO

Effect of Water Gas Shift Reaction on the Non-Isothermal Reduction of Wustite Porous Pellet Using Syngas

Effect of water gas shift reaction (CO+H2O=CO2+H2) on wustite reduction has been investigated by a transient, non-isothermal mathematical model based on grain model. In this model, wustite porous pellet is reduced using Syngas, namely a mixture of hydrogen, carbon monoxide, carbon dioxide and water vapor. For this purpose, governing equations containing continuity equation of species and energy...

H2 Morphology of Young Planetary Nebulae

The distributions of H2 1-0 S(l) emission in the young planetary nebulae BD +30°3639 and NGC 7027 show ~triking similarities: both have limb-brightened arcs of H2 emission with radii that are about twice those of ~h~ir H; II regions. The extended H2 emission in both nebulae is attributed to a photodissociation region. Thi.s implies that the neutral envelopes of these young planetaries extend we...