The process 9, wherein the plurality of microstructured panels are arranged in an alternating manner so the reaction zone microchannels and {HEAD ~ the cooling microchannels} are capable of dissipating {TAIL ~ heat} to maintain the reaction zones within a desired temperature range for reacting toluene and methane to form ethylbenzene and styrene 
The process 9 , wherein the plurality of microstructured panels are arranged in an alternating manner so the reaction zone microchannels and { HEAD ~ the cooling microchannels } are capable of dissipating { TAIL ~ heat } to maintain the reaction zones within a desired temperature range for reacting toluene and methane to form ethylbenzene and styrene
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