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Process Data set: cement production;cement, ordinary portland cement, 32.5MPa;mixed solid wastes (en) en zh

Key Data Set Information
Location GD-CN
Geographical representativeness description Guangzhou Shijing Cement Plant
Name
cement production;cement, ordinary portland cement, 32.5MPa;mixed solid wastes
Use advice for data set When utilizing this LCA data, users should note that the dataset represents the production of 1kg of P·O 32.5 ordinary Portland cement and includes processes from raw material mining to cement storage. This data is specific to the shaft kiln technology at Guangzhou Shijing Cement Plant and includes the usage of mixed solid wastes as part of the raw material blend. It's important to note that the industrial waste residues used in the process are not considered in the pollutant emissions. Users should apply this data within its technological applicability scope and take into account the methodological advice when integrating this dataset into broader LCA studies.
Technical purpose of product or process Ordinary Portland cement (OPC), with a strength grade of 32.5MPa, is commonly applied in civil engineering projects such as the construction of buildings, bridges, roads, and other infrastructure works. It is suitable for general concrete construction where the special properties of other types of cement are not required. The cement produced at Guangzhou Shijing Cement Plant employs a mix of solid wastes, including slag, fly ash, phosphogypsum, and ceramic polishing waste as secondary raw materials, indicating a commitment to sustainable manufacturing practices.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / Materials production / Other mineralic materials
General comment on data set Solid waste blending: slag, fly ash, phosphogypsum, ceramic polishing waste.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Technological representativeness
Mathematical model
Model description 1kg P·O 32.5 ordinary Portland cement was used as the functional unit for evaluation. The research scope ranges from cement raw material mining, energy production, raw meal preparation, clinker calcination and cement grinding to cement storage.
LCI method and allocation
Type of data set Unit process, black box
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 It is based on the resource and energy consumption data of the shaft kiln production process of the pilot manufacturer Guangzhou Shijing Cement Factory.Primary resource consumption adopts the life cycle emission data of my country's resources and energy production calculated by Di Xianghua.
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) 2024-03-19T21:18:09+08:00
Publication and ownership
UUID 1c1251bf-2558-47d6-ada1-39e9392eca35
Date of last revision 2024-04-20T14:41:07.002811+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=1c1251bf-2558-47d6-ada1-39e9392eca35&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
Elementary flow
Resources / Resources from ground / Non-renewable material resources from ground 1133.0 kg1133.0 kg
General comment Limestone. The primary resource consumption and life cycle emission data for energy and resource production in China, calculated using Di Xianghua's method.
Elementary flow
Resources / Resources from ground / Non-renewable material resources from ground 75.0 kg75.0 kg
General comment Clay
Product flow
Materials production / Metals and semimetals 45.0 kg45.0 kg
General comment Iron powder
Product flow
Materials production / Other mineralic materials 25.0 kg25.0 kg
General comment Gypsum
Elementary flow
Resources / Resources from ground / Non-renewable material resources from ground 12.0 kg12.0 kg
General comment Fluorite
Waste flow
Wastes / Post consumer waste 60.0 kg60.0 kg
General comment Slag
Product flow
Materials production / Inorganic chemicals 29.0 kg29.0 kg
General comment Phosphogypsum. Experimental data.
Waste flow
Wastes 50.0 kg50.0 kg
General comment Fly ash. Experimental data.
Waste flow
Wastes / Post consumer waste 70.0 kg70.0 kg
General comment Ceramic polishing waste. Experimental data.
Product flow
Energy carriers and technologies / Hard coal based fuels 199.115 kg199.115 kg
General comment Standard coal. The original data is 0.185kg standard coal, here converted to hard coal, the conversion formula is 1kg hard coal = 0.929kg standard coal.
Product flow
Energy carriers and technologies / Electricity 352.8 MJ352.8 MJ
General comment Electricity

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 991.0 kg991.0 kg
General comment CO2. Calculation of CO2 emissions: CO2 is mainly generated by the combustion of coal and other fossil fuels, and the decomposition of limestone in the raw materials for cement clinker production.
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 4.201 kg4.201 kg
General comment SO2. SO2 emission: 0.25% of the clinker mass based on literature and experimental data.
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 2.77 kg2.77 kg
General comment NOx. The estimation formula for NOx emissions is: E = 0.001Fa(1-rf), where E is the NOx emission in kg, F is the fuel consumption in kg, a is the NOx emission factor during fuel combustion, r is the coverage rate of denitrification equipment, and f is the average denitrification efficiency. Currently, denitrification equipment is scarce in China, so denitrification is not considered. The emission factors for raw coal and crude oil are 9.95 kg/t and 0.24 kg/t, respectively, and for natural gas is 4.10 g/m³.
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 7.89 kg7.89 kg
General comment Particulate matter, with an unspecified particle size, is treated as PM > 10 micrometers in diameter. Particulate matter emissions: According to statistical data from the 2004 China Environmental Yearbook and China Building Materials Industry Yearbook, the total emissions of dust and smoke per ton of cement produced is about 5.84 kg.
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.02949 kg0.02949 kg
General comment HF. HF emission: 0.03% of the clinker mass based on literature and experimental data.
Product flow
Materials production / Other mineralic materials 1000.0 kg1000.0 kg
General comment P.O.32.5 Ordinary silicate cement