At the end of April 2025, Mingjie Group completed the MJ-15 pyrolysis plastic recycling plant installation and commissioning in Philippines. Customers purchase pyrolysis machine mainly to process plastics from municipal solid waste. Considering the complex composition of plastics that the customer wanted to process, we recommended the MJ-15 batch pyrolysis plant.
In the pyrolysis of municipal solid waste, plastic is one of the most valuable key components that contributes the most to the pyrolysis products (especially high-quality oil). The pyrolysis effect of plastics (especially polyolefins) is very ideal, with high oil yield and good oil quality.
The Philippines Clean Air Act prohibits the incineration of municipal solid waste, medical waste, hazardous waste, and any process that produces toxic and harmful fumes. This makes incineration difficult to implement in the Philippines.
Against this backdrop, pyrolysis technology was introduced to the Philippines as an innovative waste treatment solution. Pyrolysis technology decomposes plastics into syngas, pyrolysis oil, and solid carbon black at high temperatures in the absence of oxygen or anoxic conditions.
These products can be recycled as energy, perfectly in line with the 3R principle of environmental protection (Reduce, Reuse, Recycle. That is, reducing the amount of waste, reusing resources, and recycling. Pyrolysis equipment can not only effectively solve the problem of waste treatment, but also achieve resource recycling and reuse.
Plastic Pyrolysis Principle
Pyrolysis, also known as dry distillation in the industrial field, is a key technology based on the thermal instability of organic matter. The core process of plastic pyrolysis is to apply heat energy to organic matter in a specific environment without oxygen or oxygen deficiency to break its chemical bonds. This achieves the transformation of macromolecular organic matter into small molecular substances, and finally generates combustible gas, liquid oil and solid residue.
From the nature of chemical reactions, plastic pyrolysis is a complex process. It includes multiple reactions such as molecular bond breaking, rearrangement, and polymerization. When the organic matter in the plastic is heated, it will first undergo a dehydration reaction, and then it may undergo a demethylation or dehydrogenation reaction. As the temperature rises further, the generated aromatic ring compounds will continue to undergo cracking, dehydrogenation, condensation, hydrogenation and other reactions.
Differences Between Incineration and Pyrolysis Plastic Recycling
Incineration is an aerobic oxidation reaction, while pyrolysis is an oxygen-free or anoxic reaction.
The incineration process is exothermic, while pyrolysis plastic recycling is an endothermic process.
The main products of incineration are carbon dioxide and water. The plastic pyrolysis products are mainly combustible synthetic gas, liquid fuel oil and solid carbon black.
The heat energy generated by incineration is generally used directly nearby. The plastic pyrolysis products (combustible gas, oil, carbon black) have the advantages of storage and long-distance transportation. They can be more flexibly applied to different scenarios.
These differences make pyrolysis technology unique in terms of environmental protection and plastic recycling.
Pyrolysis Plastic Recycling Plant in Philippines
In the pyrolysis plastic recycling plant, the pyrolysis reactor is the main equipment, using an indirect heating method. The batch pyrolysis plastic recycling plant has a wide range of adaptability to materials and can process solid waste of various sizes and shapes, such as whole tires and packaged plastics.
The pyrolysis reactor adopts a double-layer insulation structure, which can quickly transfer heat to the plastic. The organic waste is quickly heated and pyrolysis occurs, which greatly increases the reaction rate. It can meet the huge demand for urban solid waste treatment in the Philippines.
Mingjie engineers equip the batch pyrolysis plant with feeding equipment, condensation system and complete tail gas treatment system. They are conducive to feeding speed and promote the separation of pyrolysis products. The emission purification system can effectively treat the harmful gases generated during the pyrolysis process. It meets environmental emission standards and reduces pollution to the environment.
Advantage of Plastic Pyrolysis Plant
In the pyrolysis project in Philippines, the pyrolysis plant has demonstrated excellent operating results and brought significant changes to the treatment of urban solid waste.
From the perspective of waste reduction, the pyrolysis equipment has greatly reduced the volume of waste. After pyrolysis treatment, the volume reduction ratio of waste is as high as 80% – 90%.
In terms of harmless treatment, the removal rate of harmful substances by pyrolysis plastic recycling equipment is remarkable. Pyrolysis equipment can effectively decompose organic pollutants in garbage, such as polycyclic aromatic hydrocarbons, dioxins, etc. The removal rate of these harmful substances has reached more than 95%, greatly reducing the harm of solid waste to the environment and human health.
Energy recovery is a highlight of pyrolysis plant. In the pyrolysis plastic recycling project in Philippines, the pyrolysis equipment will convert plastics into pyrolysis oil, combustible gas and carbon black. It effectively improves the recycling rate of energy.
