How does feedstock recycling work?


How is feedstock recycling done?

Feedstock recycling, also known as “chemical recycling,” is the process of breaking down collected plastics into monomers and other basic chemical elements (“depolymerization”). … These monomers can be used as virgin material alternatives in manufacturing new polymers.

How does the recycling process work?

After collection, recyclables are sent to a recovery facility to be sorted, cleaned and processed into materials that can be used in manufacturing. Recyclables are bought and sold just like raw materials would be, and prices go up and down depending on supply and demand in the United States and the world.

What is the difference between mechanical recycling and feedstock recycling?

The distinction between mechanical recycling and feedstock (or chemical) recycling is that mechanical requires physical separation, whereas feedstock recycling converts mixed PE/PP/PS/PVC into basic hydrocarbon building blocks. … Mechanical recycling is primarily a method of treating single polymer waste.

What is an advantage of feedstock recycling?

Feedstock recycling of scrap polymers by thermal and chemical degradation is well known and environmentally accepted. Figure 1 shows that it enables one to recover raw materials (and primary energy) from waste and applied processes that are identical or similar to those of energy carriers production.

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How is plastic used as feedstock?

The most common example of feedstock recycling in Europe is currently the use of plastic waste in blast furnaces, where plastics are gasified into syngas and replace coke, coal or natural gas to act as a reducing agent to convert iron ore and other oxidised metals into pure metals.

What is the difference between feedstock and raw materials?

Raw material can encompass the entirety of what goes into making a product. For instance, fabric, thread, dye, and buttons, are all raw material for making a shirt. Feedstock is usually a single, uniform, raw material that is given as an input into a machine or process, usually in large quantities.

What is feedstock used for?

Feedstock is raw material used for processing or manufacturing another product. Examples of feedstock include crude oil, which is used to produce gasoline, corn, which is used to produce ethanol, and soybean oil, which is used to produce biodiesel.

What feedstock means?

A feedstock is defined as any renewable, biological material that can be used directly as a fuel, or converted to another form of fuel or energy product.