I&EC 73 |
| Conventional micro structured reactors consist of channels with admeasurements in both dimensions within the micro meter scale. Using slits with a width of less than 1 mm gives the chance for simple and economical fabrication. Due to the slit geometry other than usual coating technologies become feasible. Using the spray technology porous coatings with high thickness, planarity and excellent mechanical strenghth can be achieved. Reaction kinetics of coated catalysts are the base for the design of microstructured production reactors. A laboratory tool for kinetic measurements are gradientless recycle reactors. In contrast to conventional measurements in recycle reactors catalyst coatings rather than powder-shaped catalysts have to be evaluated. Data for the acetoxylation of ethylene using coated catalysts will be shown. Prearrangements comprise the adaption of the reactor inlet, the verification of reactor ideality and the elimination of diffusion limitation. Afterwards the experimental realisation and interpretation of kinetic measurements can be performed. |
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IEC Poster Session
8:00 PM-10:00 PM, Tuesday, August 21, 2007 BCEC -- Exhibit Hall - B2, Poster
Sci-Mix
Division of Industrial & Engineering Chemistry |