Raws li cov pa phem yas thoob ntiaj teb tseem nce ntxiv, Ntau lub tebchaws thiab kev lag luam tab tom nrhiav kev daws teeb meem rov ua dua tshiab ntau dua. Cov kev siv tshuab rov ua dua tshiab feem ntau ntsib teeb meem xws li yas degradation, paug, thiab nyuaj rau kev sib cais ntawm cov khoom sib xyaw. Cov kev txwv no txo qis kev rov ua dua tshiab thiab cov khoom lag luam zoo. Hauv kev teb, pyrolysis thev naus laus zis tau tshwm sim los ua lwm txoj hauv kev cia siab. Cov txheej txheem tshuaj lom neeg rov ua dua tshiab no tso cai rau kev lag luam thermally rhuav tshem cov yas khib nyiab ntawm qhov siab kub , ib puag ncig tsis muaj oxygen. Los ntawm cov txheej txheem no, cov tuam txhab tuaj yeem hloov cov yas pov tseg mus rau hauv cov khoom muaj txiaj ntsig zoo li roj roj, roj hluav taws xob, thiab cov pa roj carbon dub. Los ntawm kev muab txoj hauv kev huv dua thiab muaj txiaj ntsig zoo dua los siv cov yas pov tseg, pyrolysis muab txoj kev daws teeb meem ruaj khov rau kev rov qab los ntawm cov peev txheej thiab kev tiv thaiv ib puag ncig.

Hom yas twg yog qhov tsim nyog rau pyrolysis rov ua dua tshiab?

Qee cov yas uas feem ntau siv muaj peev xwm zoo rau kev tsim roj roj los ntawm pyrolysis vim tias lawv cov roj siab tawm. Paub txog cov khoom thiab kev siv ib txwm siv ntawm cov yas no pab cov neeg rov ua dua tshiab txheeb xyuas cov khoom siv raw khoom muaj txiaj ntsig.

  • Polyethylene (PE) — suav nrog ob qho tib si high-density polyethylene (HDPE) thiab tsis tshua muaj polyethylene (LDPE) — yog ntawm cov hom yas feem ntau uas tau ntsib hauv lub neej txhua hnub. It is frequently found in plastic bags, bottles, and packaging films. PE is known for its high energy content and strong oil-producing capacity during pyrolysis.

  • Polypropylene (PP) is another valuable plastic used in a variety of products such as food containers, bottle caps, and components in the automotive industry. Its molecular structure allows it to break down efficiently under heat, resulting in a high yield of pyrolysis oil.

  • Polystyrene (PS), commonly seen in foam packaging, disposable tableware, and insulation materials, also performs well in pyrolysis. It decomposes easily and generates a significant amount of liquid oil.

  • Acrylonitrile-butadiene-styrene (ABS) is a tough, durable plastic often used in electronic device housings, toys, and car parts. Despite its composite structure, ABS delivers a good oil yield when processed under proper pyrolysis conditions.

Dangers of Pyrolyzing PVC (Polyvinyl Chloride)

PVC contains a high level of chlorine. During the pyrolysis process, it releases hydrogen chloride (HCl) gas—a corrosive substance that damages equipment, pollutes the environment, and endangers workers’ health.

Even if oil is produced from PVC, it remains contaminated with chlorine. Burning such oil can release dioxins, which are highly toxic and carcinogenic, posing serious environmental and health threats.

PET (Polyethylene Terephthalate) Offers Low Value in Pyrolysis

PET is not a suitable feedstock for pyrolysis because it yields very little oil. Instead, the process produces mostly powdery, low-quality residue with limited market value.

Moreover, the oxygen in PET’s chemical structure (C₁₀H₈O₄)ₙ reacts with the flammable gases during pyrolysis, increasing the risk of explosion.

What is the process of waste plastic pyrolysis?

Efficient Pretreatment Ensures Quality Pyrolysis Output

Before the pyrolysis process begins, proper pretreatment of plastic waste is essential to enhance efficiency and product quality.

  • Classification and screening: Operators must first sort waste plastics by type. This step removes materials like PVC and PET that are not suitable for pyrolysis and helps reduce the risk of harmful emissions or contamination.
  • Cleaning and drying: Dirt, moisture, and surface impurities should be eliminated to avoid undesired chemical reactions during heating.
  • Crushing and pulverization: Plastics are then crushed into uniform, manageable particle sizes to ensure even heating and better conversion during pyrolysis.
waste plastic disposal

Controlled Pyrolysis Converts Plastics into Valuable Products

cov txheej txheem yas pyrolysis pov tseg

The core of the recycling process lies in the thermal decomposition of plastic polymers under controlled conditions.

  • Heating decomposition: In an oxygen-free or low-oxygen environment, pretreated plastics are gradually heated to temperatures between 300°C and 900°C. And this causes the long polymer chains to break down into smaller hydrocarbon molecules.
  • Reaction control: By adjusting the temperature, heating rate, and retention time, operators can optimize both the quantity and quality of the final pyrolysis products, including fuel oil and carbon black.

Efficient Product Collection Maximizes Resource Utilization

After decomposition, the pyrolysis system shifts focus to condensing and separating useful products from the gas stream.

  • Gas condensation: The hot vapor is cooled using a condensation system to recover high-value liquid fuel oil.
  • Carbon black collection: Solid residues from the reaction are mainly carbon black, which can be repurposed in the manufacturing of rubber, Yas, pigment, or ink.
  • Combustible gas utilization: The remaining uncondensed gas is flammable and can be recycled back into the heating system to reduce external energy usage.
cov khoom kawg ntawm cov yas pyrolysis cog

Environmental Management Ensures Sustainable Operation

Kev ntxuav roj thiab kev kho dej qias neeg hauv cov yas pyrolysis cog

Sustainability is a priority, and effective environmental controls are integrated throughout the pyrolysis system.

  • Gas purification: Harmful components in the exhaust gases are filtered through deacidification, dust removal, and adsorption units to meet environmental emission standards.
  • Wastewater treatment: Any wastewater generated is properly treated using filtration or chemical processes before discharge, preventing soil or water pollution.

Technical parameters of plastic pyrolysis plant

Models Batch Type Semi-Continuous Type Continuous Type
Unit Capacity 5-20 Tons/day 15-25 Tons/day 20-70 Tons/day
Feedstock Size ≤1600mm ≤100mm ≤80mm
Feedstock Pretreatment Need to be pre-processed by shredder or grinder to the appropriate size Need to be pre-processed by shredder or grinder to the appropriate size
PLC Optional Optional Equipped with
Reactor Cooling Time 3-12 hours 3-5 hours 0
hwj huam 12-25 kW/h 15-30 kW/h 50 kW/h
Maintenance Period 1 day 7-10 Hnub 45-60 Hnub

What is the waste plastic pyrolysis plant price?

Generally, the price of the system of recycling waste plastic is not fixed. Because it depends on your capacity, equipment types, project design, thiab lwm yam. The plastic pyrolysis system costs range from $80,000 mus rau $400,000.

$80,000-$250,000 basic plastic pyrolysis system

For $80,000-$250,000 budget, you can choose to only buy a basic plastic pyrolysis system, which consists of feedstock pretreatment system (shredder, dryer), pyrolysis reactor (batch type), condensation system (cooling tower, oil-water separator), oil storage tank, gas recycling and purification system, basic emission treatment (dust collector, water spray) and control cabinet (semi-automatic).

$180,000-$300,000 upgrading design of plastic pyrolysis plant

With $180,000-$300,000, we can offer you an upgrading design of automatic feeding system, continuous pyrolysis reactor, multi-stage condensing system, oil-gas separator & storage units, dedusting system (spray tower + activated carbon), cooling tower, full control system (PLC, sensors, remote control), with an output of 15-25 t / d.

$300,000 mus rau $400,000 txuas ntxiv khib nyiab yas pyrolysis cog

Nrog tus nqi ntawm $300,000 mus rau $400,000 lossis ntau dua, koj tuaj yeem teeb tsa cov khib nyiab yas pyrolysis cog nrog cov txheej txheem ua tiav. Suav nrog tag nrho cov khoom noj thiab tso tawm tas mus li, high-efficiency pyrolysis reactor nrog rwb thaiv tsev, advanced roj-roj condensation thiab sib cais unit, roj purification thiab tag nrho rov ua dua tshiab, tag nrho flue gas treatment system (spray tower, neutralizer, activated carbon), tshav kub rov qab system, chav tswj ntse (SCADA / PLC). Lub peev xwm loj tshaj plaws tuaj yeem rov ua dua tshiab 20-70 tons ntawm cov yas khib nyiab ib hnub.

Peb puas tuaj yeem rov ua dua lwm hom khib nyiab?? Cov lus teb yog yog. Raws li tus kws tshaj lij kev lag luam e-khib nyiab, tseem muaj ntau lwm cov khib nyiab rov ua dua tshiab muaj rau koj. Xws li khib nyiab log rov ua dua tshiab, khib nyiab log tsheb pyrolysis cog, hnub ci vaj huam sib luag pov tseg kab, thiab lwm yam. Yog tias koj muaj lwm yam kev xav tau, welcome to contact us for your own e-waste recycling line now!

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