With the rapid development of the global photovoltaic industry, the number of retired modules continues to increase. Traditional chemical processing methods suffer from issues such as secondary pollution and low efficiency. Qhov sib txawv, PV pyrolysis technology is becoming the top choice due to its advantages of non-corrosive operation, low emissions, and high-value recovery. The pyrolysis process involves controlling temperature, atmosphere, and heating rate to decompose and volatilize the encapsulation film. Yog li, it is easy to remove glass, silicon wafers, and metal wires in order to achieve resource recovery.
Do different encapsulation films have the same pyrolysis temperature?
Photovoltaic modules have various encapsulation film types, such as EVA, POE, and PVB in common. They play a crucial role in photovoltaic encapsulation by providing adhesion, waterproofing, and UV protection, while also being the most challenging component to remove during the solar panel recycling. In PV pyrolysis technology, the pyrolysis temperature relates to the type and thickness of the adhesive film as well as the laminate structure.
Ethylene-vinyl acetate copolymer is currently the most widely used encapsulation material. Its pyrolysis initiation temperature is typically around 350°C, with a decomposition range of approximately 350–500°C. Pyrolysis releases small amounts of acetic acid and organic volatiles, so the temperature control and tail gas purification are critical.
POE film uses polyolefin as its base material, and its thermal stability is higher than that of EVA. Its decomposition temperature typically ranges between 420–550°C, and the pyrolysis rate is relatively gentle which is more suitable for continuous processes. POE components leave minimal colloidal residue at high temperatures, and the wafer surface remains cleaner.
It is mainly for double-glass modules and has low heat resistance, which usually begins to decompose at 280–420°C. PVB has a low softening point, which allows for low-energy removal through a combination of thermal softening and pyrolysis.
Certain new modules employ multi-layer encapsulation with a broader pyrolysis temperature range, which requires segmental heating. The initial heating stage removes the binder, while the subsequent stage completely decomposes organic matter.
How to choose between continuous and batch PV pyrolysis technology?
One of the most common questions that customers ask when learning about our Hnub ci vaj huam sib luag pyrolysis project daws is: “Is your equipment continuous or batch? Which is better?”Qhov tseeb, both processes have their respective applications, and the choice depends on the scale of treatment, operational frequency, thiab peev nyiaj txiag.
The batch pyrolysis process features a simple structure and flexible operation, which is especially suitable for treating small-to-medium scale or multi-type modules. It operates through a process sequence of loading, heating, pyrolysis, cooling, and discharging, with each batch completed independently.
Its process adaptability is strong, and it can flexibly adjust the temperature curve for different component materials. Cov solar panel recycling tshuab nqi is relatively low, and maintenance and cleaning are also quite convenient. Given that the intermittent pyrolysis process still has room for further optimization in terms of production capacity and energy consumption, you can choose to enhance overall efficiency and energy performance through complementary equipment.
The continuous pyrolysis process achieves uninterrupted operation through the continuous feeding and discharge of materials, which is suitable for large-scale and industrial production. Its primary advantage lies in 24 hour continuous production capability. High thermal energy utilization efficiency enables synergistic operation with waste heat recovery systems to reduce energy consumption, while advanced automation levels minimize labor requirements.
Tib lub sijhawm, this process demands higher construction investment and material feeding uniformity, and the commissioning period is longer. Yog li ntawd, we will fully plan and optimize during the design and implementation phases.
How to Select the Optimal Photovoltaic Panel Pyrolysis Solution Based on Production Capacity and Investment?
YUSHUNXIN has been developing PV Recycling Technology for many years and possesses mature Solar vaj huam sib luag rov siv dua.
Controlled thermal delamination
Use when laminate release requires a controlled thermal duty integrated with gas treatment and solid separation.
Cov khoom tuaj
Module kev tsim kho, encapsulant, contamination, feed preparation and operating continuity.
Kev cia siab tso tawm
Thermally released and classified material fractions; condensable/non-condensable streams remain project-specific.
Qhov project interfaces
Reactor/tunnel duty, secondary combustion, gas cleaning, cooling, tiv thaiv hluav taws, monitoring and residues.
Tsuas yog siv cov kab uas phim cov txheej txheem ciam teb.
| Catalog siv | Muaj peev xwm | Hwj chim | Lub hnab ntawv lub cev | suav ciam teb |
|---|---|---|---|---|
| YSX-TK500Tunnel thermal | 500 kg/h | 116.65 kW | 65 × 13 × 7.5 m | Continuous tunnel thermal line |
| YSX-TK1000Tunnel thermal | 1,000 kg/h | 126.65 kW | 72 × 13 × 7.5 m | Continuous tunnel thermal line |
| YSX-TK2000Tunnel thermal | 2,000 kg/h | 136.65 kW | 80 × 13 × 7.5 m | Continuous tunnel thermal line |
| YSX-PF5Batch thermal | 5 t / hnub | 140.45 kW | 46 × 33 × 7.5 m | Mixed-module batch thermal line |
| YSX-PF16Batch thermal | 16 t / hnub | 142.45 kW | 40 × 26 × 7.5 m | Mixed-module batch thermal line |
| YSX-8000Earlier integrated thermal | 8 t / hnub | Configuration controlled | 50 × 30 × 8 m | Earlier thermal project reference; reactor Φ2200 × 6000 × 20 mm |
| YSX-16000Earlier integrated thermal | 16 t / hnub | Configuration controlled | 60 × 30 × 8 m | Earlier thermal project reference; reactor Φ2800 × 6600 × 18 mm |
Configuration txoj cai: catalog muaj peev xwm yog ib qho kev npaj siv. Stable throughput, nruab / ua haujlwm fais fab, hneev taw, rov qab los, kev huv, emissions thiab kev siv hluav taws xob xav tau yuav tsum muaj daim ntawv teev cov cuab yeej pom zoo, cov ntaub ntawv tus neeg sawv cev thiab sau ntawv lees txais.
Cov ntaub ntawv yuav tsum tau ua ntej configuration thiab hais
- Cov duab sawv cev, specifications thiab muaj qauv.
- Yuav tsum muaj peev xwm ntxiv cov sij hawm ua haujlwm, ua haujlwm ib hnub thiab hnub ua haujlwm.
- Lub hom phiaj tso zis, sampling method thiab downstream receiver xav tau.
- Lub teb chaws, muaj zog, roj, dej, compressed cua thiab lub tsev txwv.
- Ib puag ncig hauv zos, hluav taws, khaws cia thiab kev ua haujlwm-kev nyab xeeb yuav tsum.
- Thov xa tuaj ciam teb: khoom siv, layout, kev teeb tsa, commissioning thiab kev cob qhia.
