Development of a modular microreactor for the partial hydrocarbon oxidation

Partial Isobutane Oxidation to tert‐Butyl Hydroperoxide in a Micro Reactor – Comparison of DTBP and Aqueous TBHP as Initiator

“…The process has been performed using a micro reactor consisting of silicon‐coated capillary (ID 1 mm, length 100 m) . Since hydroperoxides are known to be sensitive to metal ions, the capillary and other wetted parts were coated by amorphous silicon , .…”

“…The process has been performed using a micro reactor consisting of silicon-coated capillary (ID 1 mm, length 100 m) [5]. Since hydroperoxides are known to be sensitive to metal ions, the capillary and other wetted parts were coated by amorphous silicon [5,13]. A silicon-coated high pressure syringe pump has been used to inject the initiator at a defined small volume flow into the micro reactor during the entire reaction time.…”

“…A silicon-coated high pressure syringe pump has been used to inject the initiator at a defined small volume flow into the micro reactor during the entire reaction time. More details on the experimental facility are published elsewhere [5]. The parameters used in the present work are largely identical with those used in case of the experiments with DTBP [14,15].…”

“…To overcome mass transfer limitations across the gas‐liquid interface, additional studies at supercritical conditions of the reaction mixture are useful. Thus, a modular lab facility with a micro reactor has been erected to investigate the partial oxidation of hydrocarbons as a two‐phase process as well as under supercritical conditions in a capillary reactor of a variable length of up to 100 m in a broad range of flow rates, temperatures (75 to 150 °C) and pressures (25 to 100 bar).…”