Fluidized with oxygen addition

Medrano, J. A., Oliva, M., Ruiz, J., Garcia, L., Arauzo, J. (2008). Catalytic steam reforming of acetic acid in a fluidized bed reactor with oxygen addition. International Journal of Hydrogen Energy, 33, 4387—4396. 

As with any reaction involving the partial oxidation of a fuel-like feed material (propylene), considerable attention must be paid to the composition of hydrocarbons and oxygen in the feed stream In the current design, a fluidized-bed reactor is used, which provides essentially isothermal conditions in the reactor and, with the addition of large amounts of steam, allows safe and stable operation. The second safety concern is associated with the highly exothermic polymerization of AA, which occurs in two ways. First, if this material is stored without appropriate additives, then free radical initiation of the polymerization can occur. This potentially disastrous situation is discussed by Kurland and Bryant [1]. Second, AA dimerizes when in high concentrations at temperatures greater than 90°C, and thus much of the separation... 

Catalytic tests in the Oxydative Dehydrogenation (ODH) of methanol Kinetic runs were performed in a stainless steel tubular reactor with an internal diameter of 1cm, kept isothermal with a fluidized bed of sand. Liquid methanol was fed, by a syringe pump, into a vaporizer chamber kept at 200 °C and was then sent, after the addition of a stream of oxygen and helium, into a stainless steel coil kept at the same temperature of the reactor. 

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