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Process Data set: clinker production;clinker (en) en zh

Key Data Set Information
Location ZZ-SD-CN
Geographical representativeness description Shandong Shenfeng Cement Group Co., Ltd
Name
clinker production;clinker
Use advice for data set When using this dataset, users should pay attention to the specific clinker quality parameters (KH, SM, and IM), as these impact the resulting quality and types of cement that can be produced. Additionally, as the system boundaries exclude wastewater considerations due to minimal discharge, any assessment requiring analysis of the water use and disposal in the production should adjust the data accordingly. Methodological considerations should also include the specific energy consumption metrics, as well as the calculation of materials involved in the process, such as the proportions of raw materials, coal, coal ash, and the management of food waste, and residual waste. Further, understanding the functional units will be critical in applying this data to environmental impact assessments and in comparing the clinker production efficiency and emissions with other production methods or facilities.
Technical purpose of product or process The dataset describes the conventional production of clinker by the Shandong Shenfeng Cement Group Co., Ltd. This process is a core component for cement manufacturing where the clinker serves as the primary ingredient for the production of various types of cement. As such, it is essential in the construction industry for creating concrete, mortar, and other building materials.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / Materials production / Other mineralic materials
General comment on data set Conventional clinker production.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Technological representativeness
Flow diagram(s) or picture(s)
  • OJX8bOZwBoZ6jYxVZZ6ccAJRnSf.png Image
Mathematical model
Model description Two functional units are defined, namely 1 ton of clinker and the amount of food waste and residual waste required to produce 1 ton of clinker.The system boundaries include pulverized coal preparation, raw meal preparation and clinker calcination.
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 First assume the proportion of raw material consumption, and then calculate the coal consumption, coal ash incorporation rate, raw meal ratio, raw meal ratio after ignition, clinker ratio and clinker quality parameters according to the formula, including lime saturation coefficient (KH) , silicate modulus (SM) and aluminate modulus (IM). The clinker quality parameters are KH=0.89±0.02, SM=2.5±0.1, IM=1.5±0.1. The quantity of wet material was calculated using the formula. The electricity consumption at each stage is calculated based on the electricity consumption index of cement production.
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 56a8894e-f6c2-4e6a-8241-0a838cf59c12
Date of last revision 2024-04-20T14:42:19.418392+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=56a8894e-f6c2-4e6a-8241-0a838cf59c12&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 1353.405 kg1353.405 kg
General comment Limestone
Product flow
Materials production / Other mineralic materials 101.905 kg101.905 kg
General comment Sandstone
Elementary flow
Resources / Resources from ground / Non-renewable material resources from ground 75.555 kg75.555 kg
General comment Shale
Product flow
Materials production / Metals and semimetals 26.941 kg26.941 kg
General comment Iron powder
Elementary flow
Resources / Resources from ground / Non-renewable energy resources from ground 125.0 MJ125.0 MJ
General comment Coal
Product flow
Energy carriers and technologies / Electricity 219.0204 MJ219.0204 MJ
General comment Electricity. The power consumption at each stage was calculated according to the electricity consumption index for cement production (Wang, 2013). The background processes data from GaBi databases: electricity production, “CN: Electricity grid mix PE”.

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 760.538385 kg760.538385 kg
General comment CO2. E_(CO_2 )=E_"coal" +E_(CaCO_3 ), E_coal=NCV×FC×CC×OF×44/10, E_(C"a" CO_3 )=(FR_1-FR_10)×44/56+(FR_2-FR_20)×44/40. Where E_(CO_2 ) represents CO2 emissions from the cement kiln (t), E_"coal" represents CO2 emissions from coal combustion (t), E_(CaCO_3 ) represents CO2 emissions from the carbonate decomposition of raw materials (t), NCV is the lower heat value of coal (19.570 GJ/t), FC is the consumption of coal (t), CC is the carbon content per unit heat value of coal (0.0261 t C/GJ), OF is the carbon oxidation rate of coal (98%), FR1 is the content of CaO in clinker (%), FR10 is the content of CaO in clinker that is not derived from carbonate decomposition (%), FR2 is the content of MgO in clinker (%), FR20 is the content of MgO in clinker that is not derived from carbonate decomposition (%), and 44/56 and 44/40 are the molecular weight conversion between CO2 and CaO, MgO respectively.FR_10=(FS_10)/((1-L)×F_"c" ), FR_20=(FS_20)/((1-L)×F_"c" ). Where Fc is the conversion factor of coal ash content in clinker (1.04), FS10 is the content of CaO in raw meal that is not in the form of carbonate (%), and FS20 is the content of MgO in the raw meal that is not in the form of carbonate (%).FS_10=(∑_"n" ▒〖(m_n×r_10n)〗)/m, FS_20=(∑_"n" ▒〖(m_n×r_20n)〗)/m. Where mn is the mass of the nth raw material except limestone (kg), r10n is the content of CaO in the nth raw material except limestone (%), r20n is the content of MgO in the nth raw material except limestone (%), and m is clinker consumption (kg).
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.411575 kg0.411575 kg
General comment SOx. P_(SO_2 )=64/80×"m"×SO_3 (1-X)×〖10〗^3, where P_(SO_2 ) is the SO2 emission from the cement kiln (kg), 64/80 is the molecular weight ratio of SO2 to SO3, m is clinker consumption (t), SO3 is the SO3 content in the raw meal (%), and X is the SO3 absorption rate of the raw meal (88%).
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 1.325 kg1.325 kg
General comment NOx. P_(NO_x )=(R_Y×16+R_L×7)×m_coal×〖10〗^(-3), Where P_(NO_x ) is the NOx emission from the cement kiln (kg), R_L and R_Y are the ratios of fuel used in the rotary kiln and precalciner (0.6 and 0.4, respectively), and m_coal is the coal consumption of clinker generation (kg).
Product flow
Materials production / Other mineralic materials 1000.0 kg1000.0 kg
General comment Clinker