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Process Data set: cement production;cement, common portland cement;China average (en) en zh

Key Data Set Information
Location CN
Geographical representativeness description Average in China
Reference year 2011
Name
cement production;cement, common portland cement;China average
Use advice for data set When using this data for Life Cycle Assessment, ensure that the scope of your study matches the system boundary defined as the production stages within the cement workshops – specifically the crushing, raw material, calcining, and cement workshops. Focus only on the carbon emissions from these production stages. The functional unit is the production of 1 ton of Portland cement with a clinker content of 70%. Consider the market shares of different production processes when extrapolating the data for larger assessments. Verify the technological applicability of the data to your specific context and update the emission factors and energy consumption information if more recent data is available.
Technical purpose of product or process The described data set represents the average process of common Portland cement production in China. This cement is generally used for construction purposes including buildings, infrastructure, and other civil engineering works. The data set accounts for varying production capacities and technologies such as the small, medium, and large new dry processes, and the vertical kiln method, reflecting their respective market shares in the Chinese cement industry.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / Materials production / Other mineralic materials
General comment on data set Market share: 9.29% of small new dry process; 23.21% of medium new dry process; 29.32% of large new dry process; 38.18% of vertical kiln. The raw material consumption list data comes from the average data of the production of silicate cement in China under different processes.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Technological representativeness
Flow diagram(s) or picture(s)
  • FslObKzknospaWxfuVfchp7Tnzf.png Image
Mathematical model
Model description Take the production of 1 ton of Portland cement (clinker content is 70%) as the functional unit. The system boundary is cement workshop production, including crushing workshop, raw material workshop, calcining workshop and cement workshop.
LCI method and allocation
Type of data set Partly terminated system
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
Deviation from data selection and combination principles / explanations None
Data treatment and extrapolations principles Energy consumption and pollutant data: Data from each workshop are accumulated.
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) 2024-03-19T21:18:09+08:00
Publication and ownership
UUID 456d78bc-8e8f-46ea-a1ba-70c9d7429e64
Date of last revision 2024-04-20T14:40:51.208997+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=456d78bc-8e8f-46ea-a1ba-70c9d7429e64&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
Materials production / Other mineralic materials 920.0 kg920.0 kg
General comment Limestone. China average data.
Elementary flow
Resources / Resources from ground / Non-renewable material resources from ground 130.0 kg130.0 kg
General comment Clay. China average data.
Product flow
Materials production / Other mineralic materials 50.0 kg50.0 kg
General comment Gypsum. China average data.
Product flow
Energy carriers and technologies / Hard coal based fuels 139.908 kg139.908 kg
General comment Coal consumption. The original data is 129.99kg standard coal, here converted to hard coal, the conversion formula is 1kg hard coal = 0.929kg standard coal. Coal consumption is mainly used for drying raw materials and roasting clinker in the process of raw material preparation. In this case, the coal consumption for drying is 3.5 kg of standard coal per ton of cement, and the coal consumption for clinker burning is calculated based on China's average consumption of standard coal per ton of clinker.
Product flow
Energy carriers and technologies / Electricity 388.296 MJ388.296 MJ
General comment Power consumption. The consumption of electricity is mainly used for crushing raw materials such as limestone, raw material grinding, cement grinding, and driving other electrical equipment. The consumption of electricity is also calculated based on China's average comprehensive electricity consumption for cement manufacturing.

Outputs

Type of flow Classification Flow Location Mean amount Resulting amount Minimum amount Maximum amount
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 863.0 kg863.0 kg
General comment CO2. Emission factors selected according to IPCC guidelines.
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.00521 kg0.00521 kg
General comment CH4. Emission factors selected according to IPCC guidelines.
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.00783 kg0.00783 kg
General comment N2O. Emission factors selected according to IPCC guidelines.
Product flow
Materials production / Other mineralic materials 1000.0 kg1000.0 kg
General comment Silicate cement, 70% clinker