Short answer

Designers and engineers should explore and develop catalytic systems and refinery integration strategies that enable the efficient co-processing of waste materials with traditional feedstocks to achieve environmental and economic benefits.

Field: Sustainability
Source: Energies (2026)
Method: Literature Review and Techno-economic Analysis
Evidence: Strong effect

Integrating waste materials like plastics and tires into heavy oil refining processes can significantly improve conversion efficiency, suppress coke formation, and lead to a net economic gain while reducing greenhouse gas emissions. This sustainability research insight is drawn from a 2026 study published in Energies. Using Literature review and techno-economic analysis, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Designers and engineers should explore and develop catalytic systems and refinery integration strategies that enable the efficient co-processing of waste materials with traditional feedstocks to achieve environmental and economic benefits.

Study

SustainabilityNew This WeekStrong effect

Co-processing waste plastics and tires with heavy oil boosts refinery efficiency and reduces carbon footprint.

Energies · 2026

Key Findings

01Co-processing of waste plastics, tires, and biomass with heavy oil demonstrates superior conversion efficiency.
02The process leads to significant coke suppression and improved carbon utilization.
03Life cycle assessments indicate greenhouse gas reductions.
04Techno-economic comparisons show a net economic gain of approximately USD 2–3 per barrel relative to conventional refining under specific hydrogen production scenarios.

Application

Design takeaway

How to apply

Consider the integration of waste streams into existing or new processing facilities, focusing on catalyst development and process optimization for co-processing.

Project actions

01When researching new materials, think about how they can be combined with existing ones.
02Consider the entire lifecycle of a product or process, from raw material to disposal or reuse.

Method & Evidence

AimTo investigate the efficacy and sustainability benefits of co-processing waste-derived feedstocks (plastics, tires, biomass) with heavy oil residues in refinery operations.

MethodLiterature Review and Techno-economic Analysis

ProcedureThe study reviewed advancements in catalytic strategies for upgrading waste products and heavy oils, focusing on hydrogen addition pathways and dispersed nanocatalysts. It included life cycle and techno-economic comparisons of co-processing versus conventional refining.

ContextOil refining and waste valorization

Variables

IV["Type of feedstock (heavy oil, plastics, tires, biomass)","Catalyst type and concentration","Hydrogen addition rate"]

DV["Conversion efficiency","Coke formation rate","Greenhouse gas emissions","Economic viability (profit per barrel)"]

CV["Refinery operating conditions (temperature, pressure)","Hydrogen production method (for economic comparison)","Specific composition of waste feedstocks"]

Strengths & Limitations

Strengths

+Addresses a critical area of industrial sustainability and resource management.
+Provides both technical and economic perspectives on co-processing.
+Highlights practical pathways for integrating waste into existing industries.

Limitations

The study relies on existing literature and theoretical models; actual implementation may face unforeseen technical challenges and cost variations.

Reliability & validity

The validity of the findings relies heavily on the quality and comprehensiveness of the reviewed literature and the assumptions made in the techno-economic models. Reliability would be enhanced by experimental validation of the catalytic processes.

Think critically

What are the potential long-term environmental impacts of introducing complex, mixed waste feedstocks into refining processes, beyond the immediate greenhouse gas reductions?

Design Principles

"Valorize waste streams through integrated processing to enhance resource efficiency and reduce environmental impact."

This research offers a practical pathway for the oil and gas industry to transition towards a circular carbon economy. By valorizing waste streams, refineries can enhance their sustainability profile, reduce reliance on virgin fossil fuels, and potentially unlock new revenue streams.

What This Means for Your Design

You can mix old plastic and tires with heavy oil in a refinery to make it work better, produce less pollution, and even make more money.

How to use in your project

1.Use this research to justify exploring alternative feedstocks or waste integration in your design project.
2.Cite this study when discussing the environmental benefits of material choices or process designs.

Add to My Project

Quick Cite

Paragraph starter

This research highlights the significant potential of co-processing waste-derived feedstocks, such as plastics and tires, with heavy oil residues. The findings suggest that such integration can lead to enhanced conversion efficiency, reduced coke formation, and a lower carbon footprint, offering a net economic gain of approximately USD 2–3 per barrel compared to conventional refining methods, particularly when coupled with decarbonized hydrogen production. This approach aligns with circular economy principles by valorizing waste materials and optimizing resource utilization within industrial processes.

Source

Energies

Beyond Waste: Future Sustainable Insights for Integrating Complex Feedstocks into the Global Energy Mix

journal · 2026

View source

Questions About This Research

What does the research say about co-processing waste plastics and tires with heavy oil boosts refinery efficiency and reduces carbon footprint?: Designers and engineers should explore and develop catalytic systems and refinery integration strategies that enable the efficient co-processing of waste materials with traditional feedstocks to achieve environmental and economic benefits. Evidence: Energies (2026).
Why does "Co-processing waste plastics and tires with heavy oil boosts refinery efficiency and reduces carbon footprint." matter for design?: This research offers a practical pathway for the oil and gas industry to transition towards a circular carbon economy. By valorizing waste streams, refineries can enhance their sustainability profile, reduce reliance on virgin fossil fuels, and potentially unlock new revenue streams.
How can designers apply this research?: Designers and engineers should explore and develop catalytic systems and refinery integration strategies that enable the efficient co-processing of waste materials with traditional feedstocks to achieve environmental and economic benefits.
What were the main findings?: Co-processing of waste plastics, tires, and biomass with heavy oil demonstrates superior conversion efficiency.. The process leads to significant coke suppression and improved carbon utilization.. Life cycle assessments indicate greenhouse gas reductions.. Techno-economic comparisons show a net economic gain of approximately USD 2–3 per barrel relative to conventional refining under specific hydrogen production scenarios.
What research method was used?: Literature Review and Techno-economic Analysis.
How strong is the evidence?: Evidence strength is rated Strong effect, based on a 2026 journal from Energies.
What should I do differently in my next project?: Consider the integration of waste streams into existing or new processing facilities, focusing on catalyst development and process optimization for co-processing.
What are the limitations?: The economic gains are dependent on scenarios assuming decarbonized hydrogen production, and the effectiveness may vary with specific waste compositions and catalyst performance.