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Process Data set: Thermal treatment of Ethylene-vinyl acetate copolymer;Ethylene-vinyl acetate copolymer(EVA);Thermal treatment (en) en zh

Key Data Set Information
Location CN
Name
Thermal treatment of Ethylene-vinyl acetate copolymer;Ethylene-vinyl acetate copolymer(EVA);Thermal treatment
Use advice for data set When using the LCA dataset for multi-Si PV modules, it is essential to average the values provided by the multiple data sources if discrepancies exist. Consider the data gathered from literature, environmental impact assessment statements, and industry reports. Ensure that the appropriate environmental impact assessments are chosen based on the geographic relevance of the product lifecycle under consideration. Remember to account for any methodological differences between sources and apply consistent system boundaries.
Technical purpose of product or process Thermal treatment of Ethylene-vinyl acetate (EVA) refers to the process necessary for the preparation of EVA for use in multi-Si photovoltaic (PV) module assembly. Pre-treated EVA, along with remelted glass and chemically treated aluminum and silicon, is used as a substitute for virgin materials in manufacturing these modules. Additionally, pre-treated EVA is crucial in the recycling process of multi-Si PV cells to ensure the efficient recovery of materials and components.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / Energy carriers and technologies / Heat and steam
General comment on data set Glass need to be remelted, EVA (Ethylene Vinyl Acetat) need thermal treatment, and aluminum need remetling and chemical treatment before they may substitute virgin materials in the module assembling process. Meanwhile, chemical treatment is necessary for silicon and silver before recycling in polysilicon production and multi-Si PV cell respectively.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Technological representativeness
Flow diagram(s) or picture(s)
  • PAChbeKqaoP44fxkKkXcVhv2ncg.png Image
LCI method and allocation
Type of data set Unit process, single operation
Deviation from LCI method principle / explanations None
Deviation from modelling constants / explanations None
Data sources, treatment and representativeness
Deviation from data cut-off and completeness principles / explanations None
Data selection and combination principles The inventory data of the multi-Si PV modules are collectedfrom several sources: (1) Literatures including Fu (2013), whichcontain material inventory of several photovoltaic enterprises inJiangsu province; Diao and Shi (2011), which contain materialinventory of two photovoltaic enterprises in Beijing; He (2013),which contain material inventory of four photovoltaic enterprisesin Gansu and Sichuan province. (2) Environment Impact Assessment Statements (EIAS) of multi-Si PV production companies fromSichuan (EIAS-Sichuan, 2008), Henan (EIAS-Henan, 2009) andChongqing (EIAS-Chongqing, 2008). (3) Industry report of marketforesight and investment prospect for China’s photovoltaicdevelopment (2014) and Industrial report of market foresightand investment prospect for China’s polysilicon development(2014). The mean value is applied when there are different datasources for specific materials.
Deviation from data selection and combination principles / explanations None
Deviation from data treatment and extrapolations principles / explanations None
Data source(s) used for this data set
Completeness
Completeness of product model No statement
Validation
Type of review
Dependent internal review
Reviewer name and institution
Data generator
Data set generator / modeller
Data entry by
Time stamp (last saved) 2023-12-27T19:34:37+08:00
Publication and ownership
UUID 9cb5f73c-4e16-4bfa-aef5-50cf4ba57e4a
Date of last revision 2024-04-20T14:57:26.053078+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=9cb5f73c-4e16-4bfa-aef5-50cf4ba57e4a&version=01.00.000&stock=TianGong
Owner of data set
Copyright No
License type Free of charge for all users and uses

Inputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow
Emissions / Other substance type 15.4 kg15.4 kg 10.1024 20.6976
General comment EVA
Product flow Materials production / Inorganic chemicals 16.2 kg16.2 kg
Product flow
Materials production / Organic chemicals 9.63 kg9.63 kg
General comment Oxidant
Product flow
Energy carriers and technologies / Electricity 10.8 MJ10.8 MJ
General comment Unit kw

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Product flow
Emissions / Other substance type 12.47 kg12.47 kg
General comment EVA
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 2.71 kg2.71 kg
Elementary flow Emissions / Emissions to air / Emissions to lower stratosphere and upper troposphere 18.26 kg18.26 kg
Elementary flow Emissions / Emissions to air / Emissions to air, unspecified 4.26 kg4.26 kg
Product flow Materials production / Organic chemicals 2.59 kg2.59 kg
Product flow Materials production / Organic chemicals 1.56 kg1.56 kg