Abstract
In foam forming fibres are dispersed into an aqueous
foam, which prevents fibre flocculation and improves
product quality. The potential of foam forming technology
has been demonstrated several times in laboratory scale
experiments but there are only a few studies performed in
realistic process conditions. In this paper we introduce
results from recent trials done at VTT's SUORA pilot
environment. We show how foam forming leads to several
percentage points higher dry solids content after the
press section, which implies even 20% savings in drying
energy. At the same time, foaming improves bulk and
formation. We further demonstrate that in the case of
forming with foam, cellulose nanofibrils (CNF) can be
used as a strength additive without negative impact on
dewatering or formation
| Original language | English |
|---|---|
| Title of host publication | Past and Future of OCC Systems, 2015 PaperCon Conference |
| Publisher | TAPPI Press |
| Pages | 757-766 |
| ISBN (Print) | 978-151081887-3 |
| Publication status | Published - 2015 |
| MoE publication type | A4 Article in a conference publication |
| Event | Paper Conference and Trade Show, PaperCon 2015 - Atlanta, United States Duration: 19 Apr 2015 → 22 Apr 2015 |
Conference
| Conference | Paper Conference and Trade Show, PaperCon 2015 |
|---|---|
| Abbreviated title | PaperCon 2015 |
| Country/Territory | United States |
| City | Atlanta |
| Period | 19/04/15 → 22/04/15 |
Keywords
- foam forming
- cellulose nanofibrils (CNF)
- dry solids content
- bulk
- formation
- flocculation