Cradle to Gate
Identity ID
fd6d42e7-eba7-4104-80ae-0f77b09e8e2f
Materials
Associated ID
9b8e2f45-28ac-4d9a-9311-10b5b7988a77
Included activities starts
Included activities ends
Description
This process involves crushing and heating-melting waste textile raw materials after removing impurities and metals. The molten material is then increased in viscosity within a viscosity-enhancing reactor, followed by pelletizing and screening to produce polyester chips. During production, the waste materials are first crushed and then electrically heated to melt and mix the mixture. After melting, viscosity is increased, and a homogenizing vessel is used to achieve a more uniform melt consistency while further increasing viscosity. The homogenized and viscosity-enhanced melt is then filtered, cooled, solidified, and subsequently pelletized and screened. Process equipment mainly operates on electrical energy, generating solid waste such as scrap metal, waste packaging, used filter nets, and spent activated carbon. Emissions from production include VOCs, COD, SS, and NH3-N. Hazardous waste, including waste oil and used engine oil, is handled by third-party companies. This dataset is applicable to the process of preparing recycled pellets from waste synthetic fibers.
Activity Description
This dataset represents the process of producing polyester chips from waste textile raw materials through sorting and crushing, melt viscosity enhancement, pelletizing, and sieving. It includes information on energy and material consumption, waste generation, and emissions of exhaust gas and wastewater during the production process.
Process Description
After shredding waste textile raw materials, they are heated and melted, filtered and viscosity-increased, then pelletized to form polyester chips.
Time period
2016
2026
Geography
China
Geography comment
Shaoxing, Zhejiang
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
Polyester chips are prepared by melting waste textile raw materials at high temperature and then applying a filtration and viscosity-increasing process.