Hyperspectral sorting technology delivers ≥99.5% pure feedstock for pyrolysis, depolymerization, and gasification processes — maximizing chemical recycling yield and product quality
Chemical recycling promises to close the loop, but feedstock contamination threatens the entire process
PVC in pyrolysis feedstock releases HCl gas that corrodes equipment and poisons catalysts. Even 100ppm of PVC can reduce catalyst life by 50% and produce hazardous chlorinated byproducts.
Different polymers pyrolyze at different temperatures with different kinetics. Mixed feedstock causes temperature fluctuations, inconsistent product quality, and increased char/coke formation.
Chemical recycling plants currently pay 2,000-3,000 CNY/ton for pre-sorted feedstock — often still with 5-10% contamination. Achieving <1% contamination requires expensive multi-stage sorting.
Single-pass purification achieving >99.5% target material purity, specifically designed for chemical recycling process requirements
SWIR 900-1700nm hyperspectral scanning identifies every particle on the belt — 224 spectral bands capture unique polymer fingerprints for 15+ plastic types
AI precisely identifies and ejects PVC, PET (in polyolefin streams), metals, and other non-target materials — contamination reduced to <0.5%
Configure sorting parameters for specific chemical recycling processes — polyolefin-only for pyrolysis, PET-only for depolymerization, mixed stream for gasification
Automated batch quality reporting — spectral purity analysis, contaminant quantification, and traceability documentation for downstream process validation
| Parameter | Manual + NIR Sorting | Density Separation | Baicheye Hyperspectral |
|---|---|---|---|
| Purity | 90-95% | 85-92% | ≥99.5% |
| PVC Removal | 100-200ppm | 200-500ppm | <50ppm |
| Material Types | 3-5 | 2-3 | 15+ |
| Throughput | 0.5-1 t/h | 2-4 t/h | 3-10 t/h |
| Operating Cost | 500-800 CNY/ton | 200-300 CNY/ton | <150 CNY/ton |
| Labor Required | 10-15/shift | 3-5/shift | 1-2/shift |
| Black Plastic | Cannot detect | Cannot detect | Detectable |
| Batch Consistency | Low | Medium | High |
Based on a 20,000-ton/year pyrolysis plant processing mixed polyolefin waste
| Item | Pre-Adoption | Post-Adoption | Impact |
|---|---|---|---|
| Feedstock Purity | 90-95% | ≥99.5% | ↑ 5-10% |
| Pyrolysis Oil Yield | 65-70% | 75-80% | ↑ 10-15% |
| Oil Quality (Value) | 3,000-4,000 CNY/ton | 4,500-5,500 CNY/ton | +30-50% |
| Catalyst Life | 3-6 months | 12-18 months | 2-3x longer |
| Equipment Maintenance | 500,000+ CNY/year | <200,000 CNY/year | ↓ 60% |
| Annual Revenue Increase | - | 15-25 million CNY | Significant |
| Sorting System ROI | - | <8 months | Fast Payback |
High-purity PE/PP feedstock for thermal pyrolysis to produce naphtha-range hydrocarbons. PVC removal is critical — our system achieves <50ppm PVC.
Pure PET or PS feedstock for chemical depolymerization back to monomers. Color and copolymer contamination directly impact monomer quality.
Mixed plastic feedstock for syngas production. While more tolerant of mixed materials, removing PVC and metals is essential for clean syngas.
Wet plastic feedstock processing. Material-type purity affects oil yield and quality; contaminants can cause reactor fouling.
Understand your chemical recycling process requirements, target materials, and contaminant tolerance thresholds
Send 20-50kg of your typical feedstock for comprehensive spectral analysis and purification trial
Custom sorting configuration optimized for your specific chemical recycling process requirements
Standard delivery in 45-60 days; progress updates throughout the manufacturing process
Engineers on-site for installation, integration with your chemical recycling line, typically 7-10 working days
2-year warranty, lifetime technical support, remote monitoring + on-site service, process optimization consulting
Our hyperspectral system consistently achieves <50ppm PVC in the output stream. For processes requiring <10ppm, we offer a two-stage configuration with a dedicated PVC removal pass. We provide written performance guarantees based on your feedstock characteristics.
For pyrolysis applications, PE and PP can typically be processed together as a mixed polyolefin stream — we focus on removing non-polyolefin contaminants (PVC, PET, PS, metals). If your process requires separate PE and PP streams, our system can achieve >98% separation between them.
For chemical recycling applications, we recommend a minimum feedstock throughput of 5,000 tons/year. At this scale, the sorting system typically achieves ROI within 12-18 months through reduced catalyst costs, higher oil yield, and better product quality alone.
Yes. Our cloud platform generates automated batch quality reports including spectral purity analysis, contaminant type and concentration, and full traceability data. This documentation supports your downstream process validation and quality certification requirements.
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