Process parameters quartz reactor

Concentration of active sites increases with the S/V-factor, all other parameters being equal. As a consequence, the target product yield also increases. Therefore, all following experiments were implemented in a reactor filled with quartz granules [95], A temperature increase above 640 °C abruptly reduces 4-VP yield and the process selectivity, and increases the amounts of side products (pyridine, in particular), which indicates that under definite conditions in the presence of hydrogen peroxide alkylpyridine dealkylation reaction may be implemented. 

Clear and convincing dependences of the main parameters of the DMTM process in a quartz flow reactor at P = 91 atm, T = 427 °C, and a residence time of fr = 35 s were presented in [98]. The experiments were performed with natural gas containing up to 4% ethane and 1% C3+ hydrocarbons. Figure 3.36 shows dependences plotted based on the averaged data from this work. As can be seen, over a wide range of oxygen concentrations, from 1.5 to 12.5%, the methane conversion increased linearly with the oxygen concentration (Fig. 3.36). 

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