Key Data Set Information | |
Location | CN |
Reference year | 2010 |
Name |
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Use advice for data set | When using this dataset, users should consider the geographical scope and the average market shares for different production technologies and scales as contextual information. The data should be adapted for use in LCA models that account for similar technology and scale distributions. The system boundary includes mining and processing of raw materials, energy production, and transportation. Caution should be taken when extrapolating this data to other regions or conditions not represented by the dataset. The LCI data is based on allocations for transportation distances specific to this dataset, which may require adjustment if applying to different transportation scenarios. |
Technical purpose of product or process | The common portland cement described in this dataset is used in a variety of construction applications, ranging from infrastructure to residential buildings. It represents a general-purpose construction material typical for large-scale projects including bridges, highways, and skyscrapers within China. |
Classification |
Class name
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Hierarchy level
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General comment on data set | The average data for China are based on market shares for each cement production process technology and size, and the respective raw material consumption. Market shares of cement production process technologies and sizes: large new dry process (>4000 t-clinker/day), 29.32%; medium new dry process (2000-4000 t-clinker/day), 23.21%; small new dry process (<2000 t-clinker/day), 9.29%; shaft kiln (<2000 t-clinker/day), 38.18%. |
Copyright | No |
Owner of data set | |
Quantitative reference | |
Reference flow(s) |
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Technological representativeness | |
Technology description including background system | Market share of cement production process technology and scale: large-scale new dry process (>4000 tons-clinker/day), 29.32%; medium-sized new dry process (2000~4000 tons-clinker/day), 23.21%; small-scale new dry process Method (<2000 tons-clinker/day), 9.29%; vertical kiln (<2000 tons-clinker/day), 38.18%. |
Flow diagram(s) or picture(s) | |
Mathematical model | |
Model description | Take 1 ton of general cement produced in China with a clinker content of 70% as the functional unit. The scope of the system boundary is defined as: the mining and processing of raw materials, the production of energy, the manufacturing and sales of cement, and the transportation processes involved in the middle. |
LCI method and allocation | |||||
Type of data set | LCI result | ||||
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 | The life cycle inventory of electricity production and coal mining comes from the early data collection of Sichuan University; the life cycle inventory of road transportation comes from Ma Liping's master's thesis. Considering the transportation of raw materials and final products in the cement production process, it is assumed that the transportation mileage is as follows: 3km of road transportation for raw materials such as limestone and clay; 50km for coal road transportation; 200km for cement products. | ||||
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 | |||||
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Data generator | |
Data set generator / modeller | |
Data entry by | |
Time stamp (last saved) | 2024-04-19T19:02:06+08:00 |
Publication and ownership | |
UUID | 819dca5d-3347-461b-acae-77b5b4dd39f4 |
Date of last revision | 2024-04-20T14:40:21.787876+08:00 |
Data set version | 00.01.005 |
Permanent data set URI | https://lcadata.tiangong.world/showProcess.xhtml?uuid=819dca5d-3347-461b-acae-77b5b4dd39f4&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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Elementary flow | Resources / Resources from ground / Non-renewable material resources from ground | 1600.0 kg | 1600.0 kg | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable material resources from ground | 130.0 kg | 130.0 kg | ||||||
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Product flow | Materials production / Other mineralic materials | 0.339 kg | 0.339 kg | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable material resources from ground | 50.5 kg | 50.5 kg | ||||||
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Elementary flow | Resources / Resources from water / Renewable material resources from water | 369.0 m3 | 369.0 m3 | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable energy resources from ground | 192.0 MJ | 192.0 MJ | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable energy resources from ground | 8.25 MJ | 8.25 MJ | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable energy resources from ground | 4.7E-4 MJ | 4.7E-4 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 | 698.0 kg | 698.0 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.126 kg | 0.126 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.897 kg | 0.897 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 1.38 kg | 1.38 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.813 kg | 0.813 kg | ||||||
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Elementary flow | Emissions / Emissions to water / Emissions to water, unspecified | 0.242 kg | 0.242 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.218 kg | 0.218 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.196 kg | 0.196 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.41 kg | 0.41 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.207 kg | 0.207 kg | ||||||
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Product flow | Materials production / Other mineralic materials | 1000.0 kg | 1000.0 kg | ||||||
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