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This article should give an overview over the recent development trends regarding the options for an upgrade of the tire-derived oil (TDO) with chemical and physical techniques. In two previous articles we have already dealt with the production of limonene and highlighted the advantages of fractional distillation of TDO. Introduction Refiners around the world are looking for alternatives to producing fuels from petrochemicals only. This is due to expected future declines in crude oil reserves combined with significant fuel demand growth expectations throughout the world and increasing environmental awareness among the population.

On April 15, SK Energy and SK Networks announced that they will collaborate with Daeho Industries, Korea's leading retread tyre manufacturer, to develop a low-carbon circular system that utilizes scrap tyres. According to the agreement, the three parties will analyze the viability of the pyrolysis process that produces recovered carbon black and pyrolysis oil, as well as the measures to strengthen the collection and delivery system of waste tyres in South Korea.

We are glad to announce that our team has been enriched by an expert in tire pyrolysis, Pavol Fehér, PhD! To introduce our new expert to you, we list below his qualifications and professional background. Focus of tire pyrolysis and fuel quality enhancement Pavol Fehér worked on all aspects of thermal conversion of waste materials: from feedstock preparation to end products in R&D projects at Slovnaft Refinery and MOL Group. He researched treatment feasibility of waste materials, particularly waste tires and plastics, and worked with technologies designed to improve pyrolytic fuels.

The advantages of pyrolysis to tackle the world's growing disposal problem with end-of-life tires (ELT) in terms of a circular economy were described extensively in the last decade. Pyrolysis is a thermal process that converts organic rubber material into low molecular weight compounds such as pyrolysis gas, pyrolysis oil and raw recovered Carbon Black (ASTM 8178-20a). In contrast to the incineration of ELT, which is often condescendingly referred to as "thermal recycling" or „waste-to-energy“, pyrolysis does not destroy any raw materials, but breaks down the waste product into its chemical raw material components and makes them available for the circular economy. Fortunately, this is in the meantime confirmed by the great demand from the chemical industry for products from ELT pyrolysis.

LD Carbon, a Seoul-based producer of recovered carbon black (rCB), has closed a $28 million Series C funding round led by Toyota's growth fund, Woven Capital, with participation by Meritz Securities, Investwith, Industrial Bank of Korea, Hyundai Motor Group Zer01ne, Elohim Partners and New Main Capital. LD Carbon will use the investment to scale operations to recycle end-of-life tires and materials from end-of-life vehicles into rCB and tire pyrolysis oil (TPO) through pyrolysis, which can be used to create new automotive parts and tires. The company says the investment will advance its mission of accelerating the circular economy while delivering material cost and carbon savings to global customers.

Pyrum Innovations AG ("Pyrum"), a pioneer in the sustainable recycling of end-of-life tyres (ELT) based on its patented pyrolysis technology, has entered into a partnership agreement with the technology group Siemens. The aim of the partnership is to further promote, optimise and scale Pyrum's pyrolysis plants technologically and economically with Siemens' digitalisation and automation portfolio. Pyrum and Siemens share the goal of developing sustainable technologies as well as promoting their respective economic growth.

Scandinavian Enviro Systems (Enviro) – a Swedish tire pyrolysis equipment designer and operator – and a global tire manufacturer Michelin have signed three definitive agreements that form the basis of the companies’ strategic partnership. The agreements regulate the terms for a jointly owned plant for the end-of-life tire pyrolysis in Chile, the terms and conditions for Michelin’s use of Enviro’s patented technology, and payment for this, and the terms and conditions for payment to Enviro for deliveries of technology and services to the jointly owned plant in Chile. Before the agreements can enter into force, they must be approved by Enviro’s owners at an Extraordinary General Meeting (EGM). Notice of the EGM will be published separately.

Pyrum Innovations AG (Pyrum), a pioneer in the sustainable recycling of end-of-life-tyres (ELT) based on its patented pyrolysis technology, establishes the first joint venture to build and operate a pyrolysis plant in Bavaria, Germany. Under the company name REVALIT GmbH, a recycling plant with a capacity of 20,000 tons of used tyres is to be operated in the port of Straubing near the Danube from 2024. The planned location is characterized by excellent connections to the road network and also offers the possibility of transporting the goods to and from the site by rail and ship. Straubing thus represents an ideal location for the implementation of the environmentally oriented business approach. Besides Pyrum, the shareholders of REVALIT GmbH will be the Munich-based companies MCapital GmbH, TEXTOR GmbH and Auer Holding GmbH, each with 25%. The contract for the start of the development activities and the start of the work for the required approval documents was concluded today. Preliminary discussions with the authorities have already taken place. The signing of a reservation agreement with the landowner will take place immediately after the entry of the company in the commercial register. Initial financing discussions with banks are currently underway.

Pyrum Innovations AG (Pyrum), a pioneer in the sustainable recycling of end-of-life tyres (ELT) based on its patented pyrolysis technology, has for the first time obtained a determination of the CO2 savings of its pyrolysis process as part of a "Life Cycle Assessment" (LCA, eco balance) by the Fraunhofer Institute for Environmental, Safety and Energy Technology. The results once again demonstrate the unique and sustainable efficiency of the Pyrum technology. Compared to the use of fossil raw materials, Pyrum’s process saves 747 kg CO2 equivalent per tonne of ELT; if the use of the waste heat produced is included, as Pyrum is already applying, even 965 kg CO2 equivalent are saved per tonne of ELT.