new cellulose products and process technologies, anna suurnäkki
DESCRIPTION
FIBIC Seminar 20.11.2013TRANSCRIPT
FuBio Cellulose Anna Suurnäkki
New Cellulose Products and
Process Technologies
FIBIC annual seminar 20.11.2013
Anna Suurnäkki, VTT, FuBio Cellulose program manager
Kristiina Poppius-Levlin, VTT
Marja Rissanen, TUT
Jaakko Hiltunen, VTT
Jonni Ahlgren, Kemira
Katja Salmenkivi, Pöyry
FuBio Cellulose Anna Suurnäkki
? ? €
€
?
? €
€
Forest industry searches for new products
FuBio Cellulose Anna Suurnäkki
FuBio Products from Dissolving Cellulose
Main objective
To develop novel, sustainable, and feasible
processes for production of
regenerated cellulose staple fibres
novel functional materials based on
cellulose beads, nonwovens or
thermoformable structures
water soluble cellulose chemicals
FuBio Cellulose Anna Suurnäkki
FuBio Products from Dissolved Cellulose
Target: value chains novel to forest industry
Water management
chemicals
Garments Technical
textiles
Hygienic products
Plastic like packaging
www.suominen.fi
FuBio Cellulose Anna Suurnäkki 5
Cellulose
beads to
e.g.medical
tableting
drying
washing collecting
Regenerated cellulose fibres for
textiles and nonwovens
Cellulose
absorbents for
hygiene products
Thermoplastic
cellulose to
fibres
Chemical
synthesis
Fibre spinning
Beads manufacturing
FuBio Products from Dissolving Cellulose
Approach
Water soluble
cellulose
chemicals
FuBio Cellulose Anna Suurnäkki
o
FuBio Products from Dissolving Cellulose
Foreseen impacts
Finnish knowledge platform fortified with world class research
and inventions in focus areas
Business and economy
Existing value chains equipped with breakthrough technical
tools
Potential new value chains based on wood cellulose
introduced
Novel business opportunities for value chain players:
pulp and paper companies, chemical suppliers, engineering
and machinery suppliers, and material converting companies
Environment, sustainability and safety
From oil based polymers and unsustainable cellulose sources
to wood cellulose in focus areas
Future process sustainability and workers safety by replacing
harmful process chemicals (e.g. in staple fibre production)
FuBio Cellulose Anna Suurnäkki
FuBio Cellulose – Result examples
FuBio Cellulose Anna Suurnäkki
Result example
Synthesis routes for cationic cellulose chemicals
Motivation: Cationic water soluble polymers is a growing market with key application
areas in water treatment, pulp & paper, oil, mining, cosmetics and textile industries
Target: A feasible synthesis route for cationic, water-soluble, cellulose-based flocculant
for paper and water treatment applications Effect of charge on polymer solubility
Qualitative and quantitative
opportunities evaluated
Activation
Cationization
Neutralization
Separation & Purification
Drying
Cellulose
Cationic cellulose
Process concept
Effect of polymer charge on performance
Results:
Extensive cationization chemistry mapping carried out
Techno-economic modelling of process concept carried out
FuBio Cellulose Anna Suurnäkki
Result example
Cellulose beads for medical applications
Results
New method for producing
cellulose beads developed to kg
scale
Beads can enable precise,
accurate and individualized dosing
of pharmaceuticals
Drugs were immersed in wet beads and dried
FuBio Cellulose Anna Suurnäkki
Dissolving grade pulp
Regeneration
Filtration, degas
No emissions
MERCERISATION, 18wt% naoh Combined mechanical and enzymatic
treatment
Aging Sulphurisation
Ripening
Dissolving, NaOH Alkaline slurry is frozen
and thawed
Finnish invention Biocelsol process as a basis
Process more lean and less polluting than viscose
Machinery the same as in viscose process - enhance
industrial take up of the technology
Process challenge: Pretreatment time and up-scaling
Result example
Water based regenerated fibre production process
Before
project
After project
Mechanical shredding 5h
combined
treatment
for 45min
at 30%
consistency,
up-scalable
Pulp consistency 20%
Batch size 0.5 kg
Enzymatic treatment 3h
Pulp consistency 5%
Batch size 0.5-5kg
Enzyme dosage, relative 1 0.25
Results
Feasible, up-scalable
pretreatment process
Fibres with excellent
water absorption
FuBio Cellulose Anna Suurnäkki
Result example
Novel solvent based regenerated fibre production process
Novel fibre spinning process based on ionic liquid dissolution of
wood cellulose
Example of the material demonstration