LOADING锐赛克 · ResourceCycle
对苯二甲酸二甲酯 (DMT)
生产厂家
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ResourceCycle delivered a 1,000 t/y DMT chemical-recycling line to a major East China petrochemical group, converting 3,000 t/y waste PET into polyester-grade DMT with ≥95% recovery, 1.4 t CO₂ saved per ton DMT, and +40% overall economic benefit.
The client is a top-tier integrated petrochemical group in East China, with core businesses in PTA, polyester, and PET chip production. Annual generation of ~3,000 tons of PET trim, defective sheet and short fiber waste was historically handled by third-party incineration and landfill.
Pressure to disclose Scope 3 and product carbon footprint (PCF), plus China's national 'Strategic Emerging Industries Catalog' listing chemical recycling, prompted the client to build an in-house chemical-recycling line converting waste PET into polyester-grade DMT and EG, closed-loop to downstream PBT / PET / PETG production, with ISCC PLUS mass-balance certification.
After comparing Loop Industries (methanolysis), Carbios (enzymatic), and ResourceCycle's proprietary methanolysis, the client selected ResourceCycle as exclusive technology licensor and equipment supplier based on local equipment integration, catalyst stability, capex per ton, and continuous operation evidence.
ResourceCycle's proprietary low-temperature (160°C), atmospheric-pressure methanolysis process with Zn-Mn binary + chelating resin recovery catalyst system. 32% energy reduction vs traditional high-T/high-P process; reaction time under 2 hours.
Modular skid design: pretreatment (crush / dry / sieve), reactor train (3 × 5 m³), 4-stage distillation, crystallization separation, packaging. 2,000 m² footprint; ¥85M capex.
Per ton waste PET yields 0.30 t polyester-grade DMT (≥99.9% / color ≤5 APHA) + 0.18 t high-purity EG (≥99.9%). Both reused in downstream PBT / PET polymerization — no intermediate sales.
ResourceCycle + SGS completed ISCC PLUS mass-balance certification, ISO 14067 product carbon footprint report, and ISO 14001 environmental management external audit — full ESG document pack for brand customer submission.
12-month on-site engineering presence: DCS parameter tuning, catalyst lifetime monitoring, batch COA trend analysis, operator training (36 hours). Remote support + annual technology upgrade package thereafter.
Mar - Apr 2024 (2 months)
Sample analysis, preliminary PCF model, ROI estimate, feasibility report
May - Sep 2024 (5 months)
Process package, PFD/P&ID, manufacturing supervision, safety assessment, EIA approval
Oct - Dec 2024 (3 months)
Civil works, equipment installation, piping, E&I, mechanical completion handover
Jan - Mar 2025 (3 months)
DCS commissioning, 72 h hot run, 72 h performance test, first COA issued
Apr 2025 onwards
Stable 8-month operation, 75 t/month DMT average, zero safety incidents
| Metric | Achieved | Comment |
|---|---|---|
| Waste PET processed | 3,000 t/y | 100% closed-loop in-group consumption |
| DMT output | ≥900 t/y | Polyester-grade, ≥99.9% purity |
| EG by-product | ≥540 t/y | Reused in PET polymerization |
| Waste PET recovery rate | 95.3% | 12 pp above industry average |
| Energy per ton DMT | 1,180 kWh | 32% lower than PTA route |
| CO₂ saved per ton | 1.4 t | ISO 14067 third-party verified |
| Annual CO₂ reduction | 1,260 t CO₂e | Equivalent to 720 households annual emission |
| Economic uplift | +40% | Feedstock substitution + disposal saving + EG sales |
| Payback period | 3.4 years | Includes equipment + EPC + commissioning |
| ISCC PLUS certification | Obtained | Enables brand green procurement |
「ResourceCycle's chemical-recycling DMT didn't just substitute part of our purchased feedstock — more importantly, it gave us a complete ISCC PLUS + ISO 14067 documentation chain, letting us enter brand green procurement systems as a 'low-carbon polyester supplier' for the first time, securing 42,000 tons of 2026-2028 long-term contracts.」
A leading East China petrochemical group
Group VP Technology
Submit your waste PET source, capacity needs and goals. ResourceCycle replies with feasibility assessment + initial scheme within 24 hours.
