Loop reactor staged with structured fibrous catalytic layers for liquid-phase hydrogenations

A novel concept of a recycle loop reactor is developed with structured filamentous catalysts integrated as trays in a staged bubble column. The reactor can be operated in batch or continuous mode. Woven fabrics of activated carbon fibers (ACF) were used as support for the Pd catalyst. The loop reactor was tested in the 2-butyne-1,4-diol hydrogenation showing selectivity up to 97% towards 2-butene-1,4-diol at conversions up to 80%. The reactor behavior was described quant. assuming an ideally mixed reactor and Langmuir-Hinshelwood kinetics with weak hydrogen adsorption. Catalyst reuse was demonstrated in multiple runs over a period of 6 mo with more than 375 h on stream. [on SciFinder (R)]


Published in:
Chemical Engineering Science, 59, 22-23, 4919-4925
Year:
2004
Keywords:
Note:
CAN 142:179227
45-4
Industrial Organic Chemicals, Leather, Fats, and Waxes
Laboratory of Chemical Reaction Engineering,Swiss Federal Institute of Technology, EPFL-SB-ISIC-LGRC,Lausanne,Switz.
Journal
0009-2509
written in English.
7440-05-3 (Palladium) Role: CAT (Catalyst use), USES (Uses) (loop reactor staged with structured fibrous catalytic layers for liq.-phase hydrogenations); 71-36-3P (n-Butanol); 110-63-4P (1,4-Butanediol); 110-64-5P (2-Butene-1,4-diol) Role: IMF (Industrial manufacture), SPN (Synthetic preparation), PREP (Preparation) (loop reactor staged with structured fibrous catalytic layers for liq.-phase hydrogenations); 110-65-6 (2-Butyne-1,4-diol); 1333-74-0 (Hydrogen) Role: PRP (Properties), RCT (Reactant), RACT (Reactant or reagent) (loop reactor staged with structured fibrous catalytic layers for liq.-phase hydrogenations)
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 Record created 2006-04-18, last modified 2018-03-17

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