At present, the field of solid waste management is becoming more closely aligned with resource management, and this is occurring in large part because the way we view “waste” is dramatically shifting. New technologies are being developed that allow more materials to be recovered and new value created from those materials.
Much more of our waste stream is considered to be valuable scrap material and new technologies such as automation for materials separation and major improvements in commercial composting are allowing the industry to tap into these resources and create value out of what was previously considered non-valuable material. Conversion technologies, specifically those designed for plastics, offer the same potential to create value for land-filled plastics that are not appropriate for mechanical recycling. And further, waste plastic to fuel conversion technology offers the potential to manage landfill-bound plastics as a resource to create a valuable alternative fuel source.
At this time, a large portion of the plastic waste stream is still treated as “waste”, and there is a large opportunity to recover more of the plastics we use in the United States. Factors that currently limit mechanical recycling include: contamination issues (e.g., food waste), technical challenges of separating resins in mixed resin products, and lack of markets for some plastics. While technically all thermoplastics can be recycled, the conditions identified above can make recovery through mechanical recycling economically impossible. The result is that many plastics still are not recovered at end-of-life.
Now, an end-of-life management option exists for non-recycled plastics: conversion of scrap plastics to either chemical feedstock or fuel. These conversion technologies rely on the processes of depolymerization and pyrolysis, respectively. Those in the plastics industry may be familiar with the term pyrolysis, or waste plastic to fuel oil conversion technologies, and have some knowledge of past attempts that have been made to commercialize this technology. The technology has existed for decades, but challenges seemed to persist in making commercial-scale systems economically feasible, and the technology was limited and did not yield a desirable product. However, recent investment and innovation in pyrolytic technology has created a new generation of systems that may have overcome these previous challenges. Especially, the latest continuous pyrolysis plants manufactured by Beston Machinery, which are very popular in the foreign markets.
The following is the continuous plastic to fuel oil process:
In general, the continuous pyrolysis plant needs the pre-treatment devices. Such as plastic shredder and dryer(If the plastic humidity is higher than 15%). Pre-treated plastics waste will be conveyed to the moving horizontal pyrolysis reactor through feeder system, it starts to pyrolysis and oil gas will be generated when temperature up to 500 degrees. Then the oil gas will be cooling down by spray cooling system, it would be liquefied, go into the oil tank. And at the same time, some un-condensed gas come into hot air circulation heating system by secondary fire retardant damper, it will be recycled for heating reactor as gas material. Exhaust gas go to the strong spray de-dusting system for removing pollution, then let environmental gas go to the air. The pyrolysis slag emissions and recycled through second sealed discharging system.
As a professional pyrolysis machine manufacturer in China, We offer the following models: both LJ-06 and BLJ-10 are batch type, only BLL-16 is semi-automatic pyrolysis plant, and BLL-30 belongs to continuous pyrolysis plant. And their handling capacity ranges from 6 tons to 30 tons. The following is their detailed parameters:
|Working Method||Batch||Semi-Continuous||Fully Continuous|
|Raw Materials||Waste Plastic, Tyre, Rubber, Oil Sludge, Medical Waste|
|Pattern||Horizontal & Rotary|
|Heating Materials||Charcoal, Wood, Fuel Oil, Natural Gas, LPG, etc.|
|Floor Area (L*W*H)||20*10*10m||25*15*10m||25*15*10m||33*15*10m|
|Operating Pressure||Normal Pressure||Constant Pressure|
|Cooling Method||Water Cooling|
|Service Life||5-8 Years|