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A highly scalable, market-first process to recycle a wide scope of waste plastics, including flexible and multi-layered materials, with a low carbon footprint.

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8 million tonnes

of plastic ends up in the ocean each year



An internationally recognised, protected and validated advanced recycling process with over 5 years of R&D at pilot scale and a global pipeline that will see one million tonnes of recycling capacity in operation or development by 2025.

HydroPRS™ utilises supercritical water to convert waste plastics, including flexible and multi-layered materials, into high yields of stable hydrocarbon products for use in the manufacture of new plastics and other materials.

The use of supercritical water makes HydroPRS™ inherently scalable.

Mura’s 2025 Annual Capacity Ambition

Mura are targeting one million tonnes of recycling capacity in operation or development within this decade. This will continue to grow and expand as we form new partnerships.




HydroPRS™ differs from traditional pyrolysis due to the use of supercritical water as the medium to help break down the carbon-carbon bonds in plastic, providing significant benefits during the reaction process.

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Direct contact between plastic and supercritical water leads to highly efficient heat transfer, making scale-up a simple process.


HydroPRS™ offers a wide scope for recycling all major types of plastic, including flexible and rigid multi-layered materials. The process is insensitive to organic contaminants such as paper and food residue, resulting in a wide range of suitable waste plastic feedstocks.


The supercritical water surrounding the plastic in the hydrothermal reactor means the process does not typically produce char or unwanted by-products, and combined with the ability to control reaction conditions, contributes to high yields of valuable fossil-replacement hydrocarbon products.


Resin Producers

Use of Mura’s circular feedstock will remove reliance on fossil feedstock to transition into a truly circular economy.

Feedstock will be available on long-term contracts to petrochemical industry partners.

Plastic Manufacturers & Consumer Brands

Mura offers access to recycled resin via petrochemical partners for use in plastic packaging, reducing need for costly packaging redesigns and as part of a truly circular economy.

HydroPRS™ is also a pathway to Net Zero and a strong message of action to consumers.

Waste Management, Mechanical Recycling & EfW

HydroPRS™ is a cost-competitive alternative to incinerating waste plastic, reducing associated CO2 emissions, and also offered a route to reducing export of plastic waste.

Global recycling partners will supply Mura with high plastic content feedstock.

Hydrothermal Plastic Recycling System

The HydroPRS™ process will serve as the enabler for a truly circular economy, providing a commercially viable alternative to incineration and landfill for end-of-life plastics.

Efficient roll-out will result in significant amounts of advanced recycling capacity across the world.

Product Upgrading

Mura and KBR are working to establish and provide optimised product upgrading for maximum conversion efficiency of HydroPRS™ feedstock.

Upgrading will, in future, be offered as a standard bolt-on option to the core process, to facilitate integration into existing refineries.