Jump to main content
Jump to site search


High-performance monoliths in heterogeneous catalysis with single-phase liquid flow

Author affiliations

Abstract

Hierarchical, macro-mesoporous silica monoliths with domain sizes (sum of mean macropore size and skeleton thickness) of ∼1 μm are highly efficient supports in heterogeneous catalysis with single-phase liquid flow. Their unprecedented performance regarding low backmixing, the elimination of internal and external diffusive transport limitations, as well as the simultaneous realization of a large (internal and external) surface area of the monolith skeleton allow reactor operation under exclusive reaction control. For experimental characterization, the Knoevenagel condensation was employed with an aminopropylated silica monolith integrated into an on-line coupled, high-pressure reaction–analysis system. It allows precise, fully automated adjustment and control of all relevant reaction parameters and promises a boost in the rapid, reproducible determination of the intrinsic reaction kinetics, in general. Hydrodynamic and reaction kinetic parameters identify extreme plug-flow conditions with this high-surface-area, compact type of microreactor and quasi-homogeneous operation in continuous-flow mode.

Graphical abstract: High-performance monoliths in heterogeneous catalysis with single-phase liquid flow

Back to tab navigation

Supplementary files

Publication details

The article was received on 27 Mar 2017, accepted on 28 Apr 2017 and first published on 28 Apr 2017


Article type: Paper
DOI: 10.1039/C7RE00042A
Citation: React. Chem. Eng., 2017, Advance Article
  •   Request permissions

    High-performance monoliths in heterogeneous catalysis with single-phase liquid flow

    C. P. Haas, T. Müllner, R. Kohns, D. Enke and U. Tallarek, React. Chem. Eng., 2017, Advance Article , DOI: 10.1039/C7RE00042A

Search articles by author

Spotlight

Advertisements