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Abstract

Preparation and properties of hierarchically structured porous silica monoliths have been discussed from the viewpoint of their application as continuous microreactors for liquid-phase synthesis of fine chemical in multi kilogram scales. The results of recent topical papers published by two research teams of Institute of Chemical Engineering Polish Academy of Sciences (ICE) and Department of Chemical Engineering and Process Design, Chemical Faculty, Silesian University of Technology (SUT) have been analyzed to specify the governing traits of microreactors. It was concluded that even enhancement factor of 100 in activity, seen in enzyme catalyzed reactions, can be explained by a proportional reduction of its physical constraints, i.e. huge enhancement of external mass transfer and micromixing. It is induced by very chaotic flows of liquid in tens of thousands of waving connected channels of ca. 25–50 mm in diameter, present in the skeleton. The scale of enhancement in the case of less active catalysts was smaller, but still large enough to consider the most practical applications.

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Authors and Affiliations

Julita Mrowiec-Białoń
Agnieszka Ciemięga
Katarzyna Maresz
Katarzyna Szymańska
Wojciech Pudło
Andrzej B. Jarzębski
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Abstract

The publication presents experimental verification of a mathematical model of silver nanowire (AgNWs) fabrication in a continuous flow process in a helical tubular reactor. Silver nanowires were synthesised with a polyol process, with ethylene glycol as the reductant of the nanomaterial precursor and solvent of the reactants. The observed average diameters and lengths of AgNWs were 98-226 nm and 5-45 μm, respectively. The experimental conversions of the precursor were 0.71-0.90. A comparison of calculated and measured conversions for the investigated range of residence times and temperatures showed that the observed error was less than 20%.
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Authors and Affiliations

Grzegorz Dzido
1
ORCID: ORCID
Muhammad Omer Farooq
2
ORCID: ORCID
Aleksandra Smolska
2
ORCID: ORCID

  1. Silesian University of Technology, Department of Chemical Engineering and Process Design,Strzody 7, 44-100 Gliwice, Poland
  2. Silesian University of Technology, Doctoral School, Akademicka 2A, 44-100 Gliwice, Poland

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