GRENECO develops and delivers modular pyrolysis and thermochemical recycling solutions for plastics, tyres, biomass, and selected industrial residues.
GRENECO helps industrial clients, recyclers, and project developers convert selected waste streams into valuable products through modular thermochemical systems, practical engineering, and implementation-focused project design.
Scalable plant architecture designed for phased implementation and practical site integration without heavy upfront civil investment.
Solutions developed for real operational conditions — not lab-scale concepts. Every project is designed to function at industrial throughput.
Project concepts adapted to feedstock type, output targets, available utilities, and local market and regulatory logic.
From concept to startup support — GRENECO focuses on workable delivery pathways, not theoretical frameworks.
GRENECO works across engineering, recycling, research, and industrial ecosystems to structure practical waste-to-value projects.
"GRENECO's modular approach removed barriers we typically face with thermochemical projects. The plant was operational within weeks of site delivery — genuinely different from other engineering offers."
"For operators who need a real project rather than a concept deck, GRENECO is one of the few teams that approaches feedstock, engineering, and commercial logic together from day one."
First commercial-scale tyre pyrolysis reference associated with GRENECO's project history. Continuous operation with integrated carbon and metal recovery streams.
View Project →Legacy project reference developed in Estonia. Multi-feedstock capable plant serving as both a production reference and an engineering development base.
View Project →Automated modular plant architecture developed for practical deployment and advanced process control. Basis for current commercial plant offer.
View Project →Compact plant model for smaller-scale project scopes. Container-ready format, factory pre-assembled, rapid site deployment for entry-level or supplementary capacity.
View Project →Overview of GRENECO: background, capabilities, project delivery model, and implementation approach for thermochemical recycling projects.
Request Document →Non-confidential summary of the GRENECO pyrolysis process: principles, feedstock criteria, output products, and plant architecture.
Request Document →One-page project summaries for key GRENECO reference installations, covering feedstock, scope, status, and output summary.
Request Document →Tell us about your feedstock, location, capacity target, and project goals. Our engineering team will respond with a direct assessment.
GRENECO structures project solutions around feedstock type, product strategy, and implementation model. Select a feedstock category to review scope and technical parameters.
HDPE, LDPE, PP, PS, ABS and mixed industrial plastics
Solutions for selected plastic streams where thermochemical conversion and downstream product strategy are technically and commercially relevant. GRENECO approaches plastic waste projects through feedstock qualification, process design, and output market positioning.
Polyolefin-rich streams (HDPE, LDPE, PP) produce high-yield liquid oil fractions with calorific value comparable to fuel oil. Mixed or contaminated plastic streams require pre-assessment. Halogenated plastics require separate treatment logic and are evaluated on a project-specific basis.
Passenger, truck and OTR tyres — whole or shredded
Tyre and rubber recycling projects based on GRENECO's legacy project direction and thermochemical processing experience. Tyre-derived feedstock generates a well-defined output profile across oil, recovered carbon black, steel wire, and process gas fractions.
The carbon black fraction from tyre processing has direct substitution value in rubber compounding, pigment, and construction material applications. Metal cord is separated within the process line as clean steel scrap.
Selected biomass and industrial residue streams
Selected biomass and industrial residue streams requiring project-specific design logic. GRENECO evaluates biomass and special waste streams on a case-by-case basis, assessing feedstock composition, moisture content, contamination profile, and target output before committing to a process configuration.
This category includes agricultural residues, forestry by-products, contaminated organics, and selected industrial by-products with thermochemical conversion potential. Project viability depends strongly on feedstock consistency and downstream product positioning.
Engineering, supply, installation, commissioning, and startup
Engineering coordination, modular supply logic, startup planning, and implementation support — delivered as a complete project. GRENECO provides single-point responsibility from process design through to plant handover and initial operational support.
Send us your feedstock specification and capacity target. We will provide a direct technical assessment within two business days.
Selected GRENECO project references, plant concepts, and implementation directions. All listed installations are confirmed references.
First commercial-scale tyre pyrolysis reference in GRENECO's project history. Delivered on a turnkey basis with full process design, manufacturing, installation, and commissioning. The plant demonstrated sustained continuous tyre processing with integrated carbon separation and metal recovery.
Legacy project reference developed in Estonia. Multi-feedstock capable plant serving as both a production reference and an engineering development base. Provided extended operating data across feedstock types, directly informing subsequent plant generations.
Automated modular plant concept developed for practical deployment and advanced process control. Reduced operator requirements, improved heat recovery, and standardised module interfaces for scalable capacity. Forms the basis for the current GRENECO commercial offer.
Compact plant model for smaller project scopes. All major systems pre-assembled and factory-tested as a container-mountable unit. Suitable as standalone entry-level installation or supplementary capacity alongside larger equipment. Rapid deployment with minimal civil requirements.
Contact us to request detailed project documentation or to discuss a project concept matching your feedstock and site conditions.
GRENECO supports project logic not only at plant level, but through product strategy and market-facing output positioning for all major pyrolysis product streams.
Every GRENECO plant generates commercially positioned output streams. Yields and market pathways depend on feedstock type, process configuration, and local market conditions.
Dark hydrocarbon liquid with calorific value comparable to heavy fuel oil. Primary market pathway as industrial fuel substitute or refinery feed. Specifications vary by feedstock; plastic-derived oil typically yields higher quality fractions than tyre-derived oil.
Recovered carbon black (rCB) from tyre processing. Direct substitution potential in rubber compounding, pigment production, and construction materials. Commercial value depends on post-processing quality and buyer certification requirements.
Steel wire and cord separated during tyre processing. Recovered as clean scrap metal suitable for direct sale to secondary steel markets. Typical yield 10–15% of tyre input mass. No further processing required post-separation.
Non-condensable pyrolysis gas with sufficient calorific value for thermal self-sufficiency. Primary use is internal — recycled as reactor fuel to reduce or eliminate external energy input. Surplus gas can be routed to energy recovery in larger installations.
GRENECO supports product market analysis as part of project development. Understanding offtake channels, product quality requirements, and pricing dynamics is a core component of project viability — not an afterthought.
Project product strategy — what to produce, at what specification, for which market, at what scale — is developed as part of the project concept phase. GRENECO integrates commercial logic into plant design from the outset.
Tell us about your feedstock and your target output products. We will assess which market pathways are realistic for your project scope.
Technical, commercial, and project-oriented materials for GRENECO solutions. For detailed specifications, contact our engineering team directly.
Overview of GRENECO: background, engineering capabilities, project delivery model, and implementation approach for thermochemical recycling projects.
Request Document →Non-confidential summary of the GRENECO pyrolysis process: principles, feedstock criteria, output products, plant architecture, and automation approach.
Request Document →One-page project summaries for key GRENECO reference installations. Covers feedstock, scope, plant model, and operational status. Available individually or as a combined pack.
Request Document →Answers to common technical questions received during project evaluation: feedstock criteria, output specifications, site requirements, automation, and support arrangements.
Read FAQ →Commercial overview of GRENECO solution categories: plastics, tyres, biomass, and turnkey project support. Suitable for initial project qualification and partner presentations.
Request Brochure →GRENECO can perform a preliminary technical assessment of your specific waste stream. Submit feedstock data and project parameters via the contact form to request an evaluation.
Submit Data →GRENECO cited as an active project developer in the Northern European thermochemical recycling sector in the 2026 cleantech review.
Read More →The Smart Plant modular concept has been assessed against current Baltic regulatory and infrastructure conditions, confirming deployment viability.
Read More →Overview of the updated EU end-of-life tyre regulation and what it means for thermochemical recycling project development and feedstock security.
Read More →Contact our engineering team with your specific project requirements. We respond to technical enquiries within two business days.
GRENECO combines process thinking, modular plant logic, and industrial implementation support for thermochemical recycling projects.
GRENECO is an engineering-driven company focused on thermochemical recycling and pyrolysis project development. We work on practical industrial pathways for converting selected waste streams into usable products and project value.
We do not sell concepts or licence technology in isolation. We structure and deliver operational projects — from pre-engineering through to startup and ongoing support.
Our reference projects span tyre pyrolysis, plastic waste processing, and modular plant development across Finland and Estonia, with active engagement across the Northern and Eastern European recycling and industrial sectors.
Every project begins with a realistic assessment of the available waste stream — its composition, consistency, contamination, and volume. Feedstock quality determines process design and output potential.
Plant architecture is modular from the first concept stage. This allows phased implementation, lower upfront civil costs, and scale-up without redesign of core process logic or control systems.
We focus on workable delivery pathways — not conceptual frameworks. Commissioning marks the beginning of operational engagement, not the end of GRENECO's involvement.
Tell us about your project, feedstock, and targets. We will assess feasibility and outline a realistic implementation pathway.
GRENECO works across industrial, recycling, research, and project-development ecosystems to structure practical waste-to-value projects.
GRENECO maintains active relationships across engineering, waste management, energy, and research sectors in Northern and Eastern Europe.
"Working with GRENECO means engaging with engineers who understand both the process and the operational reality. Their modular approach gave us a path to implementation we could actually execute."
"GRENECO brought feedstock logic and process design together in a way that made the commercial case much clearer. That integration of technical and market thinking is rare in this sector."
Waste management companies, tyre collectors, plastic processors, and energy buyers interested in establishing supply or offtake arrangements are welcome to contact us directly.
Answers to the most common technical and commercial questions received during project evaluation.
GRENECO plants are designed for hydrocarbon-rich waste streams. Validated feedstocks include:
Halogenated plastics (PVC) and feedstocks with high inorganic content require separate evaluation. We assess each feedstock individually before confirming process configuration.
Four output streams are produced depending on feedstock:
GRENECO plants are built on a modular architecture with standardised connection interfaces. Capacity expansion is achieved by adding parallel reactor modules without redesigning the core control system or significantly modifying site civil infrastructure. The Mini-Reactor format is container-mountable and can be deployed standalone or combined with additional modules.
All GRENECO plants include:
Typical requirements for a standard GRENECO installation:
GRENECO commissioning includes on-site presence of a lead process engineer through the full startup sequence: cold loop checks, pre-heating trials, initial feedstock runs, ramp-up to design capacity, steady-state performance testing, and operator certification. Handover occurs when the plant demonstrates sustained operation at design throughput against agreed output specifications.
GRENECO provides:
Indicative timeline for a standard turnkey project:
Mini-Reactor compact units have shorter manufacturing and installation timelines. All timelines depend on scope and site readiness.
Our engineering team responds to technical enquiries within two business days.
Tell us about your feedstock, capacity target, location, and project goals. Our engineering team will respond with a direct, specific assessment.
We respond to all technical project enquiries within two business days.