INVESTIGADORES
BONIVARDI Adrian Lionel
artículos
Título:
A versatile Carberry-type microcatalytic reactor for transient and/or continuous flow operation at atmospheric or medium pressure
Autor/es:
E. L. FORNERO; J. L. GIOMBI; D. L. CHIAVASSA; A. L. BONIVARDI; M. A. BALTANÁS
Revista:
CHEMICAL ENGINEERING JOURNAL
Editorial:
ELSEVIER SCIENCE SA
Referencias:
Lugar: Amsterdam; Año: 2015 vol. 264 p. 664 - 671
ISSN:
1385-8947
Resumen:
A novel catalytic reaction device featuring a
Carberry-type well-mixed microreactor built inside a medium pressure
leak valve is presented. The complete reaction system allows a broad
range of kinetic reaction engineering and heterogeneous catalysis
studies for both batch (transient) and continuous operation. Carefully
controlled temperature (±0.2 K) and pressure (up to 3 MPa) conditions
can be achieved. The continuous sampling of the reacting mixture permits
instantaneous evaluation of the gas phase composition.
The device performance was validated by comparing methanol synthesis reaction rates for H2/CO2
mixtures obtained under transient conditions using this catalytic
microreactor with steady-state kinetic rate expressions obtained using a
conventional plug-flow microreactor employing the same Pd?GaOx/SiO2 catalyst. Excellent agreement was found.
The
reaction was also studied using a more active commercial methanol
synthesis catalyst to assess the impact of heat and mass transfer
resistances. For the full range of process conditions that was tested,
the microreactor operated well under the kinetic regime.