Close Go back Collapse all sections
Process Data set: cement production;cement, portland fly-ash cement, 52.5MPa;dry rotary kiln (en) en zh

Key Data Set Information
Location BJ-CN
Name
cement production;cement, portland fly-ash cement, 52.5MPa;dry rotary kiln
Use advice for data set When utilizing this data set for Life Cycle Assessment (LCA) purposes, carefully consider the technological specificity of the Beijing cement production base and the scope of the annual average monitoring data. It is essential to ensure that the system boundaries of the LCA study align with the processes and emissions described here, including energy, water, and raw material consumption, as well as waste treatment. Users should also note that heavy metal gas emissions data are specific to the site and historical, sourced from a 2007 report, which may need updating for current assessments. Finally, take into account transport processes, electricity recovery, and the recycling technology in the assessment of the environmental impact.
Technical purpose of product or process The data set represents Portland fly-ash cement with a strength grade of 52.5 MPa, and is specifically used for high-strength concrete applications requiring high early strength and durability. The manufacturing process includes dry rotary kilns equipped with 100% cement kiln dust recycling technology. This type of cement is suitable for construction projects, infrastructure developments, and in the manufacture of precast concrete products.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / Materials production / Other mineralic materials
General comment on data set Dry rotary kiln scenarios with 100% cement kiln dust recycling technology were considered.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Technological representativeness
Flow diagram(s) or picture(s)
  • ZecDbZBPZompDlxPboYcx1hXn8k.png Image
Mathematical model
Model description Choose to manage 1 ton of Portland fly ash cement (P·F 52.5).A dry rotary kiln scenario using 100% cement kiln dust recovery technology was considered. The infrastructure processes for each scenario, road transport of raw materials to the cement production site, direct emissions, wastewater treatment, raw material and energy production and the recovery of electricity from the dry rotary kiln scenario are included.
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 Based on Chinese data, annual average monitoring data of the cement production process (including energy, water and raw material consumption, direct emissions) of the Beijing cement production base in China are used (http://www.jiancai.hk/news/show/265/) .The heavy metal gas emission data of ordinary cement at Beijing cement production site comes from the report (2007).
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
Sampling procedure The actual annual output of the Beijing cement production base is approximately 2 million tons.
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) 2024-04-19T20:00:55+08:00
Publication and ownership
UUID 7d9ef30c-78f5-4b56-b6ec-68f566c1bd61
Date of last revision 2024-04-20T14:42:00.339530+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=7d9ef30c-78f5-4b56-b6ec-68f566c1bd61&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 1160.0 kg1160.0 kg
General comment Limestone
Product flow
Energy carriers and technologies / Hard coal based fuels 111.73 kg111.73 kg
General comment Bituminous coal
Product flow
Materials production / Metals and semimetals 1.7 kg1.7 kg
General comment lron powder
Product flow
Materials production / Other mineralic materials 50.0 kg50.0 kg
General comment Gypsum
Waste flow
Wastes 170.0 kg170.0 kg
General comment Coal ash, namely fly ash.
Product flow
Materials production / Other mineralic materials 6.1 kg6.1 kg
General comment Sandstone
Product flow
Energy carriers and technologies / Electricity 372.204 MJ372.204 MJ
General comment Electricity
Elementary flow
Resources / Resources from water / Renewable material resources from water 180.0 m3180.0 m3
General comment Fresh water consumption
Elementary flow
Resources / Resources from ground / Non-renewable energy resources from ground 0.35 MJ0.35 MJ
General comment Oil

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 0.004 kg0.004 kg
General comment SO2
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 4.36E-4 kg4.36E-4 kg
General comment HCI
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 810.0 kg810.0 kg
General comment CO2
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 4.7E-4 kg4.7E-4 kg
General comment HF
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 1.88 kg1.88 kg
General comment NOx
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 1.5E-4 kg1.5E-4 kg
General comment Zn
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 5.1E-6 kg5.1E-6 kg
General comment As
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 5.0E-5 kg5.0E-5 kg
General comment Ni
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 8.7E-5 kg8.7E-5 kg
General comment Cd
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 1.2E-4 kg1.2E-4 kg
General comment Pb
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 2.2E-6 kg2.2E-6 kg
General comment Hg
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 3.4E-5 kg3.4E-5 kg
General comment Cr
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 3.4E-6 kg3.4E-6 kg
General comment Cu
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.012 kg0.012 kg
General comment Particulates. The particle size is not specified. Here we treat it as PM>10.
Product flow
Materials production / Other mineralic materials 1000.0 kg1000.0 kg
General comment Portland cement P.F 52.5