With global plastic production exceeding 400 million tons annually, only about 10% is effectively recycled. The remaining 90% is landfilled, incinerated, or leaks into nature. This causes severe ecological and health threats.

Chemical recycling offers a key solution. It turns low-value, mixed, or contaminated waste plastics into high-value fuels and chemical feedstocks. Pyrolysis stands out for its efficiency and cost-effectiveness.
Niutech is a Chinese high-tech company, has 40 years of expertise. It delivers green plastic recycling solutions worldwide. Its projects provide replicable models for the circular economy.
I. The Value of Chemical Recycling: From Crisis to Circular Economy
1. Advantages of Plastic Pyrolysis: A New Path to End “White Pollution”
Waste plastic recycling typically involves mechanical or chemical methods. Mechanical recycling only works for high-value, single-type plastics. Chemical recycling handles mixed or dirty plastics (e.g., agricultural film, medical waste).
Pyrolysis and depolymerization break plastics into monomers or small molecules (like pyrolysis oil, gas). This reduces landfill/incineration emissions and secondary pollution. It replaces petroleum-based plastic production, cutting carbon footprints. Example: Niutech’s continuous pyrolysis cuts 290,000 metric tons of CO₂ per 100,000 tons of waste plastic processed.
2. Economic Value: Upcycling Low-Value Plastics

• Pyrolysis products (e.g., oil) become fuel or chemical feedstocks.
• This greatly boosts economic value.
• Example: At Niutech’s Denmark project, waste plastic bags turn into pyrolysis oil.
• This oil enters BASF’s production to make new plastics, enabling “closed-loop recycling.”

3. Enabling Circular Economy

• Chemical recycling shifts plastics from “make-use-dispose” to “make-recycle-remake.”
• Niutech’s processed pyrolysis oil makes new plastics.
• This creates a full loop: Plastic → Waste Plastic → Olefins → New Plastic.

II. Versatile Uses of Pyrolysis Products: Plastic-to-Fuel
1. Pyrolysis Oil: Green Fuel Replacing Fossil Sources

• Refined pyrolysis oil becomes gasoline/diesel or chemical feedstock.
• Example: Thailand’s 30,000-ton/year mixed plastic project (operating 10+ years).
• Its oil is refined into fuel/ chemical fractions.

2. Solid Residue & Gas: Resource Recovery

• Solid residue: Used in construction or as solid fuel.
• Pyrolysis gas: Purified to power the system, enabling self-sufficiency.

Niutech’s industrial continuous pyrolysis technology uses eight core innovations (e.g., thermal dispersion, anti-polymerization). This ensures stable, long-term operation (equipment lifespan >10 years).

• It processes PP, PE, PS, and complex mixed plastics.
• Pyrolysis occurs in sealed, oxygen-free conditions.
• This prevents toxic emissions (e.g., dioxins).

Chemical recycling is not just technical—it’s a global sustainability strategy. Niutech proves its commercial and environmental value with 30+ years of R&D and global projects.
Future policy support and tech advances will boost this field. It will drive green economic growth. It supports “zero-waste cities” and carbon neutrality goals.