Key Data Set Information | |
Location | CN |
Name |
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Use advice for data set | The Life Cycle Assessment (LCA) data for this process uses the functional unit of 1 tonne of cement and considers system boundaries that include the production of cement, production and transportation of raw materials, and the production of electricity, but excludes the use and disposal of cement. Environmental impacts associated with the production of industrial wastes are attributed to the producer of the waste. For accurate LCA studies, it is recommended to integrate the given data with comprehensive emission data from all relevant stages, including the omitted production processes for auxiliary materials like slag, as well as consider transportation distances in relation to specific geographical contexts. |
Technical purpose of product or process | The described process is for the production of Portland blast furnace slag cement using a new dry pre-decalcination kiln process with a capacity of 4000 tons per day. This production technology is considered environmentally friendly and meets high productivity requirements. It is becoming the future development trend in China's cement industry. This cement can be utilized in construction applications where the unique properties of slag cement, such as its strength and durability, are required. |
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Class name
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Hierarchy level
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General comment on data set | The new dry pre-decomposition cement production model is selected. |
Copyright | No |
Owner of data set | |
Quantitative reference | |
Reference flow(s) |
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Technological representativeness | |
Technology description including background system | Granulated blast furnace slag. This article selects a pre-decomposition kiln-drying cement production model. The new dry pre-decomposition cement production technology is based on suspension preheating and pre-decomposition technology. It is a production technology that is more in line with environmental protection requirements and meets high productivity requirements, and has become the future development trend of China's cement industry. Therefore, the selection of new dry pre-decomposition cement production technology as cement model production technology has advanced and environmentally friendly requirements. |
Flow diagram(s) or picture(s) | |
Mathematical model | |
Model description | The life cycle functional unit is selected as 1t of cement to construct the life cycle model.The cement industry system boundary includes the production of cement, the production and transportation of raw materials, and the production of electricity, but does not include the use and processing of cement.For auxiliary materials such as slag, only the transportation and preparation process will be considered, and the production process will not be considered. |
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 | Pollutant emission data from limestone and gypsum mining come from the China Life Cycle Reference Database (CLCD). Due to the lack of mining data for clay and iron ore and the small amount of mining, the pollutant emission data from limestone mining were used as estimates. The pollutant emission data from coal mining adopt the raw coal mining data from the China Life Cycle Reference Database (CLCD).The power production pollutant emission data uses the national average grid power mixing and transmission data from the China Life Cycle Reference Database (CLCD).The transportation stage considers the transportation of all raw materials required for cement production, including limestone, clay, iron powder, gypsum, coal and industrial waste. For the convenience of calculation, a diesel truck with a load of 10t on highway transportation is taken as an example. It is assumed that the average transportation of all raw materials The distance is 100km. The pollutant emission inventory data of diesel trucks with a load of 10 tons in the China Life Cycle Reference Data (CLCD) are used. | ||||
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 | ||||
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Data generator | |
Data set generator / modeller | |
Data entry by | |
Time stamp (last saved) | 2024-04-19T19:57:44+08:00 |
Publication and ownership | |
UUID | 44b9083f-afac-48b9-a7ee-57e7c6659169 |
Date of last revision | 2024-04-20T14:41:34.538043+08:00 |
Data set version | 00.01.005 |
Permanent data set URI | https://lcadata.tiangong.world/showProcess.xhtml?uuid=44b9083f-afac-48b9-a7ee-57e7c6659169&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 | ||
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Product flow | Materials production / Other mineralic materials | 598.77 kg | 598.77 kg | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable material resources from ground | 107.66 kg | 107.66 kg | ||||||
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Product flow | Materials production / Metals and semimetals | 19.53 kg | 19.53 kg | ||||||
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Product flow | Materials production / Other mineralic materials | 50.0 kg | 50.0 kg | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable energy resources from ground | 51.3 MJ | 51.3 MJ | ||||||
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Waste flow | Materials production / Other mineralic materials | 500.0 kg | 500.0 kg | ||||||
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Product flow | Energy carriers and technologies / Electricity | 347.004 MJ | 347.004 MJ | ||||||
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Outputs
Type of flow | Classification | Flow | Location | Mean amount | Resulting amount | Minimum amount | Maximum amount | ||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 478.0 kg | 478.0 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.35 kg | 0.35 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 1.62 kg | 1.62 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.34 kg | 0.34 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 0.00962 kg | 0.00962 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 0.225 kg | 0.225 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.633 kg | 0.633 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 0.00595 kg | 0.00595 kg | ||||||
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Product flow | Materials production / Other mineralic materials | 1000.0 kg | 1000.0 kg | ||||||
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