Oxidation products static quartz reactor

The concurrent formation of methanol and formaldehyde during the oxidation of methane at atmospheric pressme in a static quartz reactor (T = 440—450 °C, fr = 1.5—4.3 min) was observed in [24]. Under these conditions, the methanol-to-formaldehyde ratio increased monotonically with decreasing residence time (Fig. 2.4), which led the authors to suggest that, at atmospheric pressure, methanol is the primary product of the process. However, even at the shortest reaction time (fr = 1-5 min), the selectivity of methanol formation was only 4.6%. 

Practically, the same products (ethanol, acetaldehyde, methanol, formaldehyde, and acetic acid) were observed during the partial oxidation of ethane in a static quartz reactor at T = 440—450 °C, fr = 1.5—4.3 min, and atmospheric pressure [24]. 

Nitric oxide reduction by hydrocarbons over oxidized copper samples has been studied by multiplexed mass-spectrometry in an all quartz reactor operated in static mode. At 600°C the reaction proceeds exclusively via consumption of HC and NO. NO is not consumed in the presence of dioxygen but preoxidation of the copper sample is necessary to facilitate high conversion rates. Infrared spectra obtained in situ at 45- incidence angle verify the conversion and show that the bulk of the active catalyst consists of cuprous oxide. A combination of IR-and mass-spectroscopy has proven to be a successful way to identify additional products and intermediates in the gasphase. 

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See also in sourсe #XX -- [ ]

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