Borealis' project to build a pyrolysis unit for chemical recycling of plastic waste has been put on hold as the company continues to evaluate the technology to use, chief executive Thomas Gangl told Argus today.
The company announced in 2021 a feasibility study to construct a unit to produce and purify 50,000t/yr of pyrolysis oil, with project partner Stena Recycling and backed by a grant from the Swedish Energy Agency (SEA). The plant was expected to begin operating in 2024.
But the company said that "the feasibility study revealed that the plant didn't meet the performance targets which were set out initially. Hence, at this stage the project is not considered ready to transition into the next engineering phase".
"Borealis remains steadfast to deploy chemical recycling into our operations. It is therefore conducting a review of the project to establish how to move forward to ensure the best outcome", the company said today. It is not currently indicating a new expected start date.
"We… need to be sure that we are doing the right thing with the right technology", Gangl told Argus, and "what we want to avoid is to just add capacities… where we are not sure how well and how big we can grow this business".
"We need to see first, if the technology is ready for the next rollout step", he said.
Borealis has access to two separate pyrolysis chemical recycling technologies, Gangl said, one being the ReOil pyrolysis process developed by its parent company — Austrian refiner OMV — that Borealis believes is "differentiating from many or all of the others" in the market. A first small-commercial scale ReOil unit is expected to come on stream this year — slightly delayed from the originally-announced timeline to start up in 2023 — with an input capacity of around 16,000 t/yr of plastic waste.
Borealis is also "doing tests" to "check what is possible" with the pyrolysis process, developed by BlueAlp, that is used at the Renasci pyrolysis unit in Oostende with which Borealis has a long-term partnership and took a majority stake last year, Gangl said. The Renasci unit first started up in 2020 with a nameplate capacity of around 20,000 t/yr.
Regulatory support
Gangl also said that regulatory support is needed in the EU for chemical recycling, particularly with respect to the calculation method permitted to track pyrolysis oil through the polymer production process where it is blended with virgin feedstocks, and allocate recycled content to the resultant products.
The EU is currently considering a number of options, including a "fuel exempt" model under which producers could freely allocate recycled credits to their highest-value products based on the volume of recycled feedstock input minus a proportion for process losses and fuel production, and a more restrictive "polymer-only" model which would only allow free allocation between polymer products.
"I still believe that chemical recycling will play an important role because many applications cannot be served by mechanical recycling today, and there is not a lot we can see on the way forward that is changing that picture totally", he said, "but with a polymer-only approach the required premium [for chemically-recycled polymers] is going up again… it is harming the development of chemical recycling in Europe and therefore on a global basis".