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Process Data set: cement production;cement, ordinary portland cement;new dry process, 5000 t/d;pure low-temperature waste heat power generation technology;mixed solid wastes (en) en zh

Key Data Set Information
Location CN
Geographical representativeness description Two cement plants in the Northeast
Name
cement production;cement, ordinary portland cement;new dry process, 5000 t/d;pure low-temperature waste heat power generation technology;mixed solid wastes
Use advice for data set When utilizing this dataset in Life Cycle Assessment (LCA), please ensure that the production systems and boundaries are consistent with those of the dataset, which specifically covers ordinary Portland cement production at two cement plants in Northeast China, utilizing the new dry process. The data user should account for the advanced technological processes, waste heat recovery, and electricity generation in the impact assessment. This dataset should only be applied to large-scale cement production scenarios where advanced energy efficiency measures are employed. Data users need to be aware that including or excluding the pure low-temperature waste heat power generation can significantly affect the outcomes of the environmental impact assessment.
Technical purpose of product or process This dataset describes the technological application of a modern cement production process. The cement produced in this manner, ordinary Portland cement, serves a wide range of construction purposes, including the construction of buildings, bridges, and roads. Furthermore, the production process incorporates advanced equipment and technology, such as the adoption of an enhanced five-stage suspension preheating and kiln decomposition system, a vertical raw mill, and a large ball mill fitted with a roller press. This setup typifies a high-efficiency cement manufacturing plant designed for large-scale production with a daily output of 5000 tons of cement clinker. Moreover, the plant utilizes pure low-temperature waste heat power generation, which is an environmentally conscious feature targeting the recovery and conversion of waste heat from the production process into electricity.
Classification
Class name : Hierarchy level
  • ILCD: Unit processes / Materials production / Other mineralic materials
General comment on data set Equipped with a 5000T/D new dry process cement clinker production line, which adopts advanced enhanced suspension preheater five-stage kiln decomposition technology and advanced cement production equipment such as vertical raw material mill and large ball mill with roller press. The case adopts the technology of pure low temperature waste heat power generation. The kiln head exhaust gas from thechiller is used for heating AQC boilers, and the kiln tail exhaust gas from the preheating device is used for heating PH boilers. The heat energy in the exhaust gas is converted into overheating steam by high -efficiency waste heat boiler to promote the power generation of the steam generator set.
Copyright No
Owner of data set
Quantitative reference
Reference flow(s)
Technological representativeness
Mathematical model
Model description The system boundary is the cement production system of the cement plant.
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
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 65320cf7-8878-4552-9ee4-523f3cee12f6
Date of last revision 2024-04-20T14:40:51.226258+08:00
Data set version 00.01.005
Permanent data set URI https://lcadata.tiangong.world/showProcess.xhtml?uuid=65320cf7-8878-4552-9ee4-523f3cee12f6&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 1150.0 kg1150.0 kg
General comment Limestone
Elementary flow
Resources / Resources from ground / Non-renewable material resources from ground 191.1111111 kg191.1111111 kg
General comment Clay
Waste flow
Wastes 123.3333333 kg123.3333333 kg
General comment Fly ash
Waste flow
Wastes / Radioactive waste 30.61111111 kg30.61111111 kg
General comment Copper
Product flow
Materials production / Other mineralic materials 70.0 kg70.0 kg
General comment Gupsum
Waste flow
Wastes / Post consumer waste 58.88888889 kg58.88888889 kg
General comment Blast furnace slag
Product flow
Energy carriers and technologies / Hard coal based fuels 150.7222222 kg150.7222222 kg
General comment Bituminous coal. Annual energy consumption from coal = (2.713E+8) kg x (2.1502E+7) J/kg (average low heating value) = 5.83E+15)J.
Product flow
Energy carriers and technologies / Electricity 290.59999999200005 MJ290.59999999200005 MJ
General comment Total electricity consumption. Annual energy consumption from electricity = (1.453E+8) kWh x (3.60E+6) J/kWh = (5.23E+14)J.
Product flow
Materials production / Other mineralic materials 983.5165 kg983.5165 kg
General comment Total water

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 0.441209 kg0.441209 kg
General comment Dust, with an unspecified particle size, is treated as PM > 10 micrometers in diameter.
Elementary flow
Emissions / Emissions to water / Emissions to fresh water 2.456044 kg2.456044 kg
General comment NO2
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 0.653846 kg0.653846 kg
General comment SO2
Elementary flow
Emissions / Emissions to air / Emissions to air, unspecified 409.3407 kg409.3407 kg
General comment CO2
Product flow
Energy carriers and technologies / Electricity 122.4 MJ122.4 MJ
General comment Annual electricity generation. Annual electricity generation = (6.12E+7) kWh x (3.60E+6) J/kWh = (2.20E+14) J. In the cement clinker calcination process, there is a large amount of heat contained in the exhaust gas discharged from the kiln head cooler and kiln tail preheater, with the heat contained in the low-temperature exhaust gas below 400°C accounting for about one-third of the total heat consumption in cement clinker calcination. Waste heat power generation technology can save a lot of resources and energy by recovering this part of waste heat, and it will not cause secondary pollution to the environment. Therefore, waste heat power generation technology has become a new technology in the cement industry, which is an effective way to achieve pollution reduction, energy conservation, efficiency improvement, and sustainable development.
Product flow
Materials production / Other mineralic materials 1000.0 kg1000.0 kg
General comment Cement products