Photochemical and thermal modeling in the early atmosphere of the earth

Details Photochemical and thermal modeling in the early atmosphere of the earth Photochemical and thermal modeling in the early atmosphere of the earth

Jul 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988cait.rept.....y&link_type=abstract

Final Report, 1 Oct. 1981 - 31 Dec. 1987 California Inst. of Tech., Pasadena. Div. of Geological and Planetary Sciences.

Other

Atmospheric Models, Oxidation-Reduction Reactions, Photochemical Reactions, Photothermal Conversion, Primitive Earth Atmosphere, Methane, Methoxy Systems, Nitriles, Planetary Atmospheres, Reaction Kinetics, Solar Atmosphere, Titan

Scientific paper

The simplest carbon compounds, present in the terrestrial and planetary atmospheres, exhibit a wide range of oxidation states, carbon dioxide and methane being the most oxidized and the most reduced form of carbon, respectively. The question arises as to the origin and the interconversion among the carbon species. The chemical pathways for the conversion of CH4 to CO and CO2 are for the most part known. The reverse process, the reduction of CO to CH4 is however, poorly understood. A new reaction is proposed, H2CO + H + M yields CH3O + M, which might play a fundamental role in the reduction of CO or CH4. An update is presented of nitrile photochemistry on Titan.

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