issue 03/2021

Plant-based
glycols for
production of
polyesters
Avantium (Amsterdam, The Netherlands) has
completed the application validation for its plantbased
glycols plantMEG and plantMPG produced
in the Ray Technology demonstration plant in Delfzijl (The
Netherlands). Key applications include polymerisation to
PEF and PET polyesters and functional fluids used for deicing
and heat transfer. Proving the functional performance
of the plant-based glycols is an important step in the scaleup
of the Ray Technology.
Avantium aims to commercialise its proprietary plantsto-glycols
Ray Technology, which is used to produce monoethylene
glycol (MEG) from plant-based feedstocks rather
than fossil sources: plantMEG. Currently, MEG is widely used
as an important chemical building block for plastic bottles and
packaging, polyester textiles for clothing and furniture, and
antifreeze applications. It is a vital ingredient in the production
of polyesters widely used in textiles and packaging.
Similarly, mono-propylene glycol (MPG) a chemical used
in airport operations for the de-icing of aeroplanes can be
produced using the Ray Technology, it is also used in unsaturated
polyester resins, for example in modern windmill blades, as well
as heat transfer fluids. Ray plantMPG is a wholly plant-based
version of MPG. Both plantMEG and plantMPG are expected to
significantly reduce greenhouse gas emissions compared to
their fossil-based equivalents.
In 2020, Avantium successfully commissioned its Ray
Technology demonstration plant, which utilises all process
steps in converting industrial sugars to glycols, allowing for
the production of plantMEG and plantMPG samples that
are representative of the final product from subsequent
commercial-scale plants.
Avantium has now produced 100 % plant-based PEF
(polyethylene furanoate) by polymerising Avantium’s monomers
FDCA (furandicarboxylic acid) and plantMEG using their YXY ®
Technology. PEF is a recyclable polymer that can be used in an
enormous range of applications, including packaging for soft
drinks, water, alcoholic beverages and fruit juices. PEF’s barrier
and thermal properties are superior to conventional PET. In
combination with a significantly reduced carbon footprint,
the added functionality gives PEF all the characteristics to
potentially become a next-generation polyester.
Ray plantMEG can also be used to produce bio-PET (30 %
plantMEG), reducing the environmental footprint versus the
fossil-based production routes. Currently, PET (polyethylene
terephthalate) is made from fossil-based MEG and fossil-based
terephthalic acid.
Zanna McFerson, managing director Renewable Chemistries
at Avantium says: “A critical step in commercialising the
Ray Technology is ensuring that the resulting products, Ray
plantMEG and plantMPG, perform in customer-specific
applications. We have now succeeded in demonstrating that
our plant-based glycols are a great solution in a broad range
of applications that can drive us towards a circular economy.
This application validation paves the way for future licensees of
the Ray Technology to tap into the growing demand for plantbased,
renewable and recyclable materials.” AT
https://www.avantium.com/
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bioplastics MAGAZINE [03/21] Vol. 16 21