A new circular economy concept from textile waste towards ...
Transcript of A new circular economy concept from textile waste towards ...
A new circular economy concept
from textile waste towards
chemical and textile industries feedstock
dr. Mojca Poberžnik,
IOS, Ltd.. Slovenia
GZS, Ljubljana, 3rd July 2018
Co-coordinator & Technical Manager:
Prof. dr. Aleksandra Lobnik, UMARI, IOS, Ltd.. Slovenia
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Recovered
Textile Waste
100%
Re-Wear
60%
Re-Use/
Re-Cycle
40%
well preserved
10%
moderate
wearability
50%
wipers
15%
fibre-pulling
14%
other recycling
& re-use 8%
waste 3%
Sales in over 90
countries globally
For utilization in the
industry
Incineration
Material Reutilisation
▪ 75 mio. tons of textile are used/produced worldwide▪ a few % of the overall textile waste (low-valued) flow is recycled▪ currently 60 mio. tons/year of textiles - sent to landfills or burned
Introduction
❑ Protecting the environment & raising social awareness and responsibility →introduction of the circular economy concept is an important decision at the EU level
❑ Project goal is to create the circular economy concept →symbiosis between the textile and chemical industry
Project vision A new value chain in the circular economy concept
❑ Aim: usage of the innovative recycling concept for production of secondary raw materials for the chemical industry
❑ Textile waste becomes a source for the textile and chemical industries
CONSUMER
CHEMICAL PRODUCTS RESYNTEX –
CIRCULAR ECONOMY CONCEPT
SECONDARY RAW
MATERIALS
COLLECT.of TEXTILE
WASTE
SORTING of TEXTILE
WASTE
Process input
❑ Waste textiles - raw material of low value for recycling in existing recycling processes
(disposal, incineration without energy recovery).
❑ New concept - processing of raw textile wastes and mixtures (Protein, CELL, PET in PA fibres) into secondary raw materials for the chemical industry.
❑ 95% of the weight of waste textiles
Landfill
Thermal treatment
Recycling
Reuse
Text
ile q
ual
ity
Was
te =
Op
po
rtu
nit
yW
aste
= C
ost
s
Process outcomes
❑ Secondary raw materials for the chemical industry
PROTEIN extraction
• Fillers, adhesivesfor wooden pannels
CELLULOSE extraction and
glucose production
• Glucose
• Bio-ethanol
PET
depolymerization
• Terephthalic acid
• Ethylene glycol
PA
depolymerization
• Monomers
Organization of project work - Consortium
❑20 partners from 10 EU countries,
3 from Slovenia
❑All segments of newly established
value chain:
▪ waste collectors;
▪ end-users of secondary raw
materials;
▪ academic, expert and consulting
organizations;
▪ stakeholders at the highest EU level.
Organization of project work
Considering and demonstrating the whole value chain starting from :
1. Preparation of strategies and scenarios for the economically successful synergy of the textile and
chemical industries,
2. Renovation of the concepts of collecting textile waste (improving public awareness),
3. Improving the sorting and pre-treatment of textile waste,
4. Development and optimization of the chemical and biotechnological transformation process of
natural and synthetic textile fibres into intermediates of raw materials for the chemical industry as
well as handling of liquid and solid residues of the process,
5. Development of industrial applications using raw materials from textile waste,
6. Process planning and techno-economic analysis,
7. Demonstration of a comprehensive concept at industrial scale,
8. Environmental and economic assessment of scenarios and verification of the business model,
9. Exploitation, dissemination, communication, standardization and training.
CHEMICAL AND ENZYMATIC PROCESSES
Recycling processes: mechanical, enzymatic, chemical
AUTOMATIC SORTING
of material
❖ DECONTAMINATION
❖ CUTTING / GRINDING
Conversion of synthetic polymers into monomers and
oligomers
Conversion of natural polymers into value
added products
Raw materials for industry
Manufacture of new polymers or
chemicals
Cleaning and sorting of material
Decolouration, Rinsing
Biocehemical and Chemical degradation
PET monomers
PA oligomers
Protein hydrolysate
Glucose solution
Fiber:
❖ Protein
❖ Cellulose
❖ PA
❖ PET
New PET
Recycling processes: mechanical, enzymatic, chemical
New polymers or high-value added
chemicals
Binders for wooden panels
Bioethanol
Material pretreatment
Two-screw extruder Material after extrusion
Decolourization
PET (sCO2)
PA
PA
CELL
PET
DENIM
Proces demonstration – pilot plants
Pilot plant (30 t/year) for cellulose and protein fibres, installed in France
Protein fibers
Solubilizedprotein fibers
Precipitatingprotein fibers
Precipitatedproteins
Cellulosic fibres
Bioreactors for enzymatic degradation
Without pre-decolourization
Pre-decolourizedwasteTextile waste - Cellulose
Cellulosic fibers
PET fibers
PET waste
TA monomer
Waste streams - Liquid
Membrane filtrationplant
AOP pilot plant
Initial Initialfrompilot plant
P – after30 min
P – after 15 min
C – after15 min C – after
30 min
Waste streams - Solids
Benefits from RESYNTEX:
▪ Non-wearable textile waste can become a valuable
source for new chemical feedstock
▪ Reducing environmental impact
▪ Improve collection approaches & increase public awareness &
improve social involvement with the issue of textile waste
▪ Improving standards for efficient industrial symbioses with new
buisness models in circular economy
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Benefits from RESYNTEX:
▪ It integrates various stakeholders into circular
economy
▪ demonstration of an ambitious theoretic concept in
reality (30 t/y pilot plant)
▪ Uses innovative recycling & industrial symbiosis
▪ Complete value chains from textile wastes & chemical
feedstocks
▪ Global benefits beyond EU
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www.resyntex.eu@RESYNTEX21
Acknowledge
RESYNTEX project received funding from the EuropeanUnion’s Horizon 2020 research and innovationprogramme under grant agreement 641942.