Aerobowe, enzymatyczne utlenianie pochodnych kwasu benzoesowego w reaktorze z wirującym złożem o hierarchicznej strukturze porów

Odrozek, K.; Szymańska, Katarzyna; Lewańczuk, Marcin; Dzido, Grzegorz; Pudło, Wojciech; Bryjak, Jolanta; Jarzębski, Andrzej B.

doi:10.15199/62.2017.12.7

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“…However, to make full use of RBR potentials to improve reaction kinetics, we proposed to load the basket with larger catalytic pellets/beads, a few millimeters in size, but with a hierarchical pore structure, as in the M-monoliths (vide supra) (Szymańska et al, 2017). Such studies were carried out more recently, and the structured catalytic pellets did indeed enhance the reaction kinetics up to an order of magnitude, compared to the RBR packed with the most conventional particulate catalysts (Odrozek et al, 2017;Szymańska et al, 2017;Kowalczykiewicz et al, 2021). These studies are summarized in the following.…”

Section: Rotating Bed Reactors With Hierarchically Structured Catalytic Packingmentioning

confidence: 99%

“…The RBR with laccase covalently immobilized on the M1 pellets proved to be a very effective synthetic system also for the three-phase aerobic enzymatic oxidation of benzoic acid derivatives (Odrozek et al, 2017). The substrate conversion was strongly affected by the intensity of forced aeration and the speed of basket rotation, up to 500 rpm in particular.…”

Section: Rotating Bed Reactors With Hierarchically Structured Catalytic Packingmentioning

confidence: 99%

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Catalytic Functionalized Structured Monolithic Micro-/Mesoreactors: Engineering, Properties, and Performance in Flow Synthesis: An Overview and Guidelines

et al. 2021

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In this review article, we first discussed the development of silica monoliths with hierarchical macro-/mesopore structure and their potential figures of merit as continuous-flow micro-/mesoreactors of up to 30 ml working volume. Making use of the flow hindrance of different pore structures seen from the Darcy law perspective, we discriminated four structures of the monoliths (M1–M4). We then summarized the most important results, mainly from our studies of continuous-flow structured monolithic reactors and rotating bed reactors (RBRs) filled with structured pellets, activated with various catalytic entities and enzymes. The results show that an increase in the flow rate and thus velocity in reactors activated with more conventional catalytic sites has no or a minor positive effect on the apparent reaction rate. On the contrary, in those with the most open structure (M1) and functionalized with enzymes, it could increase by more than two orders of magnitude even at low overpressures. The production systems worked stably for at least 200 h. To conclude, the synthetic system made of the hierarchically structured monoliths, or RBRs filled with structured catalytic pellets, lay the foundation for a new platform for the high-yield production of a wide variety of specialty chemicals, even on a multikilogram scale, in a safe and sustained manner.

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Section: Rotating Bed Reactors With Hierarchically Structured Catalytic Packingmentioning

confidence: 99%

Section: Rotating Bed Reactors With Hierarchically Structured Catalytic Packingmentioning

confidence: 99%

Catalytic Functionalized Structured Monolithic Micro-/Mesoreactors: Engineering, Properties, and Performance in Flow Synthesis: An Overview and Guidelines

et al. 2021

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Aerobowe, enzymatyczne utlenianie pochodnych kwasu benzoesowego w reaktorze z wirującym złożem o hierarchicznej strukturze porów

Cited by 1 publication

References 0 publications

Catalytic Functionalized Structured Monolithic Micro-/Mesoreactors: Engineering, Properties, and Performance in Flow Synthesis: An Overview and Guidelines

Catalytic Functionalized Structured Monolithic Micro-/Mesoreactors: Engineering, Properties, and Performance in Flow Synthesis: An Overview and Guidelines

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