Przemysław Zaprzalski, R&D Director at Grupa Recykl, joins The Tyre Recycling Podcast for Episode 92. Przemysław sits down with Ewan Scott to discuss the company’s pioneering work as Europe’s largest supplier of pyrolysis feedstock, servicing plants across Poland, Germany, and the Netherlands. He outlines the critical requirements of tyre manufacturers for consistent recovered carbon black (rCB) and explains how feedstock preparation can be utilised to regulate ash content and drastically reduce chemical tolerances to meet stringent industry standards.
Przemysław also details a comprehensive study involving the analysis of two million tyres across 200 shifts, proving that simply adjusting tyre input ratios is a “dead end” for controlling quality. Instead, he highlights how mechanical homogenisation within mixing silos successfully reduced a partner’s rCB ash tolerance from 3.6% down to $1.2%. Furthermore, the episode explores the upcoming integration of automated sorting with Regom machinery, the impact of seasonal tyre variations, and the critical need to deconstruct tyres to remove halogen-heavy butyl rubber inner liners before processing, avoiding costly downstream oil cleaning procedures.
In-Silo Homogenisation & Deconstruction: Przemysław Zaprzalski on Pyrolysis Consistency
Przemysław Zaprzalski covers all this and more in Episode 92. So please join us as we learn all about the latest technical advancements in the pyrolysis sector.
Chapters:
0:03 Introduction to Episode #92 with Ewan Scott
1:35 Grupa Recykl’s Position as Europe’s Largest Pyrolysis Feedstock Supplier
2:23 The Ash Content Dilemma: Meeting Stringent Tyre Plant Tolerances
3:57 Differential Silica and Ash Levels Across Tyre Components and Brands
5:09 Tracking Seasonal Tyre Variations: Insights from Analysing Two Million Tyres
6:18 Overcoming the Input Ratio Dead End through Silo Homogenisation
9:20 Transitioning from Manual Sorting to Automated Deconstruction with Rego
10:04 Mathematical Silo Modelling to Regulate Chemical Consistency
12:22 Future Industry Scaling: Cooperating for Volume and Circular Rubber Compounds
15:35 Explaining Grupa Recykl’s Rapid Growth in the European Market
17:40 Mapping Global rCB Technical Data: Barcelona Conference Graph Analysis
22:26 The Paradox of Upscaling: Why Feedstock Quality Dictates rCB Pricing
24:54 The Inner Liner Challenge: Managing Butyl Rubber, Halogens, and Chlorine
26:08 Economic Business Cases: Upfront Deconstruction vs. Costly Downstream TPO Cleaning
27:25 Conclusion to Episode #92
