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Abstract
An increasing demand on wood fiber based products requires an increasing efficiency of wood fiber resources. This can be achieved by a selective treatment and usage of two different fiber length classes, which are separated by a novel high performance fractionator. Hydrodynamic fractionation in a mini-channel (miniFrac) exploits network formation of fibers when flowing through a narrow channel: while longer fibers are linked to the network, shorter fibers can be extracted by a suction slot. Since an increase of slot suction rate would decrease fractionation performance, total suction rate is increased by connecting several suction slots in series. We present a scale-up strategy to a pilot scale plant by parallel connection of 16 fractionation channels (i.e., equaling-up). Therefore, a novel bifurcation distributor for fiber suspensions is developed. A comparison of the miniFrac pilot plant to a state of the art fractionation device, i.e., a pressure screen, shows that miniFrac can be operated with higher fractionation performance. Moreover, miniFrac is shown to be significantly more energy efficient than typical pressure screens.
Originalsprache | englisch |
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Aufsatznummer | 107965 |
Seitenumfang | 32 |
Fachzeitschrift | Chemical Engineering and Processing |
Jahrgang | 153 |
Frühes Online-Datum | 25 Mai 2020 |
DOIs | |
Publikationsstatus | Veröffentlicht - Juli 2020 |
ASJC Scopus subject areas
- Energieanlagenbau und Kraftwerkstechnik
- Chemische Verfahrenstechnik (insg.)
- Chemie (insg.)
- Wirtschaftsingenieurwesen und Fertigungstechnik
Fields of Expertise
- Mobility & Production
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Flippr2 - Neue Wege der Verwertung von Lignin und Faserfraktionen aus der Zellstoff- und Holzstofferzeugung
Radl, S., Bauer, W., Kienberger, M., Scheer, S., Färber, F., Redlinger-Pohn, J. D., Neubauer, C., Schmid, T., Eckhart, R., Kopacic, S. & Mandlez, D.
1/04/17 → 31/03/21
Projekt: Forschungsprojekt