Patrick Kroeger

Dr Patrick Kroeger, Arduro's chief technology officer, is a co-founder of Arduro and co-inventor of its devulcanization and separation technology. Kroeger works to continually improve Arduro's technology, expand its capability and create new sustainable products for the industry. He completed his PhD in chemical engineering at the University of Louisville. Throughout his career, Kroeger has gained extensive experience in leading engineering design, procurement and fabrication. He currently heads Arduro's R&D department.

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Presentation

Chloramine devulcanization: new standards in carbon black and rubber recovery

Arduro introduces a chloramine-based devulcanization process for end-of-life tires to recover up to 95% of materials including carbon black, polymer, processing oil and silica. Operating at low temperatures (below 100°C) and low pressures, and using non-toxic chemicals, selective devulcanization breaks sulfur cross-links while maintaining the carbon-carbon polymer backbone. Leveraging this technology, Arduro has commercialized Eldarix r1000 rCB, which can replace virgin carbon black in rubber products without loss of performance. This innovation provides a viable, environmentally benign solution for ELTs, crucial for sustainability in the rubber industry by managing ELTs, developing a sustainable lifecycle for tires and promoting a circular economy.