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Problems in use of supported liquid‐phase catalysts in fluidized bed reactors
Author(s) -
Brüsewitz Rainer,
Hesse Diethard
Publication year - 1992
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270150604
Subject(s) - hydroformylation , catalysis , fluidization , fluidized bed , saturation (graph theory) , solvent , isothermal process , chemistry , chemical engineering , liquid phase , organic chemistry , thermodynamics , rhodium , physics , mathematics , combinatorics , engineering
Since SLP catalysts can become irreversibly deactivated due to evaporation of the solvent used to prepare the contacts, a saturation technique is proposed to stabilize the catalysts' activity. Application of this technique requires isothermal reaction conditions which can be achieved directly in fluidized bed reactors. Although the fluidization properties of SLP catalysts are mainly determined by interparticle forces, it can be shown that this type of reactor is suitable for an SLP‐catalyzed gas reaction provided that a number of prerequisites are fulfilled. Taking a hydroformylation reaction catalyzed by an Rh complex dissolved in dimethyl glycol phthalate as an example, it is demonstrated that the activity of the prepared SLP catalyst can, indeed, be stabilized by saturation of the reactant gas mixture with the employed solvent.