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[Chemical Knowledge]：What are the upstream raw materials for PET? What are the downstream products?

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PET(Polyethylene Terephthalate) is a common chemical production raw material, widely used in plastics, fibers and packaging and other fields. In the upstream and downstream associated products of PET, it mainly involves crude oil, terephthalic acid (PTA), ethylene glycol (EG), recycled PET(rPET), etc. This article will detail the production of these related products, market conditions and their position in the PET industry chain.

1. upstream related products

1. Crude oil
Crude oil is the source of the PET industry chain, through petroleum cracking and other processes can produce terephthalic acid and ethylene glycol, both of which are key raw materials for the production of PET. Fluctuations in crude oil prices can have an impact on PET costs.
2. Terephthalic acid (PTA)
Terephthalic acid is one of the main raw materials of PET, accounting for about 60% of the production cost. The production of PTA is mainly achieved by oxidation of p-xylene (PX). In recent years, with the continuous progress of technology, the production cost of PTA has been gradually reduced, which provides favorable conditions for the development of PET industry.
3. Ethylene Glycol (EG)
Ethylene glycol is another major raw material for PET, accounting for about 30% of the production cost. The production of ethylene glycol is mainly realized by petrochemical route and biological route. The petrochemical route uses ethylene and oxygen as raw materials to produce ethylene glycol through oxidation, hydrolysis and other steps. The biological route is obtained by microbial fermentation.

2. downstream related products

1. Fiber grade PET
fiber grade PET is mainly used to produce polyester fiber, which is widely used in textile, clothing and other fields. With the improvement of people's living standards and the change of consumption concept, the demand for polyester fiber is increasing year by year, which promotes the development of fiber-grade PET market.
2. Bottle grade PET
Bottle grade PET is mainly used for the production of food, beverage and other packaging containers. With the improvement of people's awareness of food safety and environmental protection, bottle grade PET has gradually become the first choice of packaging materials, and the market demand continues to grow.
3. film grade PET
film grade PET is mainly used for the production of packaging film, capacitor film and other products. Because of its excellent performance, film grade PET is more and more widely used in electronic products, food packaging and other fields.

3. recycling PET(rPET)

recycling PET is the product of recycling waste PET plastic products, which can effectively save resources and reduce environmental pollution. With the improvement of social awareness of environmental protection, the demand of rPET market is gradually increasing, which provides strong support for the development of circular economy in PET industry chain.

4. market situation and future development

The market situation of PET upstream and downstream related products is affected by the global economy, policy, technology and other factors. In recent years, with the fluctuation of oil prices, the strengthening of environmental protection policies and the promotion of technological innovation, many changes have taken place in the PET industry chain. In the future, with the continuous development of new energy, biotechnology and other fields, the PET industry chain will continue to face new opportunities and challenges.

summary:

PET upstream and downstream related products include crude oil, terephthalic acid, ethylene glycol, recycled PET, etc. These products play an important role in the PET industry chain. With the changes in market demand and the continuous advancement of technology, the PET industry chain will continue to grow and provide more high-quality raw materials for plastics, fibers and packaging.

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