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Enhancing mass transport to accelerate photoreactions and enable scale-up

19 December 2023, Version 2
Working Paper
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

The importance of mixing in photoreactors along the direction of light propagation for competitive photochemical reactions is experimentally demonstrated in the MISCOP mini-plant photoreactor. The installation of customized static mixers improved the photonic efficiency of the photochemical ring-opening isomerization of 1,3,3-trimethylindolino-6'-nitrobenzopyrylospirane by a factor of 2.4, which could be related to the improved mass transport. This knowledge enables future scaling of photoreactions in multi-lamp reactors.

Keywords

Photoreactor
Scale-Up
Self-shadowing
mass transport

Supplementary materials

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Description
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Supporting Information
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Details on procedures and analytics
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SI Videos
Description
Videos of reaction with different static mixers
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Now Published

Enhancing mass transport to accelerate photoreactions and enable scale-up [opens in a new tab]
Florian Gaulhofer, Markus Metzger, Alexander Peschl, Dirk Ziegenbalg journal article
Reaction Chemistry & Engineering
Online publication date: 2024

Version History

Dec 19, 2023 Version 2

Version Notes

Added SI videos

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The content is available under CC BY NC ND 4.0 [opens in a new tab]

DOI

10.26434/chemrxiv-2023-xgl68-v2
D O I: 10.26434/chemrxiv-2023-xgl68-v2 [opens in a new tab]

Funding

Federal Ministry for Economic Affairs And Climate Action
ZF4654701ZG8
Deutsche Forschungsgemeinschaft
INST 40/575-1 FUGG (JUSTUS 2 cluster)

Author’s competing interest statement

The author(s) have declared they have no conflict of interest with regard to this content

Ethics

The author(s) have declared ethics committee/IRB approval is not relevant to this content

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