Sustainable Development Goals
PROJECT INFORMATION AT A GLANCE:
Project Status:
Historical pilot and scale-up programme
Organizations Involved:
Mitsubishi Materials Corporation, Onahama Refining & Smelting Co, Tokyo University, Tokyo Institute of Technology, Several Tire Manufacturers & Recyclers
Services / Equipment:
Design & Engineering, Due Diligence, Packaged Solutions, Component Supply
Our Japan team pursued a more ambitious objective than turning scrap tires into conventional recovered carbon black: developing processes and partnerships that could connect waste hydrocarbons to fullerenes, carbon nanotubes and specialized nano-carbon materials. The project’s commercial significance lies in the long development journey from a small nanomaterials pilot to an integrated industrial concept with product-specific markets, process engineering and scale-up objectives.
Our project account identifies work with Japanese industrial and academic organizations, extending across carbonization, synthesis, purification and nanomaterial separation. It demonstrates why access to feedstock alone does not produce a valuable specialty carbon: molecular structure, purity, separation and customer application define the product.
Conventional tire pyrolysis generates a heterogeneous carbonaceous residue. Producing recovered carbon black suitable for rubber or plastic applications already requires material upgrading and quality control. Developing fullerenes or carbon nanotubes is a different and more demanding undertaking: it requires dedicated synthesis, separation and purification rather than simply grinding tire char into smaller particles.
The Japanese programme also faced the scale-up challenge common to advanced materials. A pilot may show synthesis capability, but continuous output, repeatable specifications, product separation, industrial buyers and plant economics determine whether the process can become a sustainable business. Our team had to connect these disciplines rather than treating nanotubes as an automatic by-product of tire pyrolysis.
Our original case describes a joint pilot established in Japan in 2000, designed for approximately 0.4 tonnes per annum of nanomaterials. The programme brought together Klean (Japan), MMC, ORS, universities and tire-industry participants around carbonization and downstream advanced-carbon production.
The disclosed technical concept couples waste-hydrocarbon processing with carbon synthesis and purification. The source describes chemical vapour deposition (CVD)-based nanotube growth and density-based separation of different nanotube populations. These are distinct operations; the intended products are engineered nanomaterials, not ordinary recovered-carbon-black fines.
Develop a family of differentiated carbon products
The original case identifies four product categories under the development programme:
These are historical programme descriptions; published analytical certificates, independent product qualifications and current commercial availability have not been supplied with the page.
Engineer toward industrial-scale feedstock and output objectives
Our case describes a later reference basis of approximately 2.5 million used tires, or 20,000 tonnes of tire feedstock per year. It also sets out prospective annual outputs of 7,000 tonnes of nano-rCB and 700 tonnes of carbon nanotubes, with a contemplated tenfold nanocarbon expansion. These are scale-up and production targets reported in the original project account, not verified achieved annual production. They must be distinguished from the 0.4-tonne pilot design capacity.
The lasting significance of the Japanese programme is the development of process know-how, research relationships and commercial thinking needed to connect tire-derived hydrocarbons to advanced materials. The team evaluated a product portfolio spanning fullerenes, specialized carbons and nanotubes for potential uses in energy storage, coatings, electronics, solar technology and fuel-cell-related applications.
At the pilot level, the source reports the 0.4-tonne/year nanomaterials design basis. At the envisioned industrial level, it presents 20,000 tonnes/year of tire input and proposed 7,000-tonne/year nano-rCB and 700-tonne/year carbon-nanotube outputs. This contrast is the real engineering story: scaling an advanced-material application requires orders of magnitude more than proving a concept in the laboratory.
The case also illustrates our long-standing position that product value begins with the final customer specification. High-value nanocarbon demand cannot be assumed to absorb every tonne of recovered material; feedstock characteristics, synthesis costs, purity, and qualification determine which products are practical. The development programme broadened our application knowledge while reinforcing the importance of project-specific engineering and customers.
1. The Japanese programme was an early nanocarbon development effort.
A 0.4-tonne/year pilot established a concrete engineering starting point rather than a purely theoretical circular-carbon concept.
2. Scale is a separate investment decision.
Our stated industrial basis — 20,000 tonnes/year of tires and proposed 7,000 tonnes/year nano-rCB plus 700 tonnes/year nanotubes — demonstrates both the potential and the qualification challenge. The larger figures are targets, not audited production results.
3. Markets matter as much as molecules.
Universities and industrial participants supported exploration of advanced products, but customer specifications, reliable production and off-take economics determine which applications can be commercialized.
These are selected achievements and lessons. Further engineering, product-development and commercial insights are available through an appropriate engagement with Klean.
Developers should identify the intended carbon product before selecting the process. A project targeting rubber-grade rCB, purified specialty carbon or carbon nanotubes has different feedstock, engineering, quality-assurance and customer requirements. We can help assess those distinctions through a scoped technical engagement; equipment projects normally progress through paid DEQ, DFS and FEED where appropriate.
Discuss Your Nano Carbon and Fullerenes Project with Klean >> GO.
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ABOUT THE INFORMATION PRESENTED
This historical case describes a Japanese research and technology-development programme using project records and design expectations. Pilot design capacity and proposed industrial outputs are not interchangeable; additional operational, product-testing and commercial details are addressed within an agreed engagement and relevant confidentiality arrangements.
This project addresses the United Nations Sustainable Development Goals (SDGs) by considering the goals and associated targets illustrated by the WBCSD’s Tire Industry Project (TIP). TIP provides a framework for action that outlines impactful pathways for the tire sector to contribute to achieving the Sustainable Development Goals (SDGs). To learn more about how our approach, solutions, and technologies contribute to advancing the SDGs, please review the report “Sustainability Driven: Accelerating Impact with the Tire Sector SDG Roadmap”.
