Key Data Set Information | |
Location | CN |
Name |
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Use advice for data set | Users should apply this data set considering the coverage of direct and indirect environmental impacts encompassing the four main cement production stages (raw meal preparation, clinker burning, cement grinding, and packaging) as well as limestone mining, coal production, and electricity generation associated with the upstream process. It is essential to adhere to assumptions such as the transportation distances for limestone and coal when applying the data to ensure comparability. |
Technical purpose of product or process | JT shaft kiln cement production data is intended for use in evaluating the environmental impact of producing 1t of ordinary Portland cement. This data can be applied in the construction industry for comparative analyses of cement production methodologies concerning resource and energy consumption as well as pollutant emissions. |
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General comment on data set | The impact of a typical JT shaft kiln process on the resource consumption, energy consumption and environmental emissions involved in the cement production life cycle was quantified using 1t of ordinary silicate cement as a functional unit. |
Copyright | No |
Owner of data set | |
Quantitative reference | |
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Technological representativeness | |
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Mathematical model | |
Model description | Taking 1 ton of ordinary Portland cement as the functional unit. The scope of the study is defined as the first and second stages of cement production, that is, the direct environmental impact of the four processes of raw meal preparation, clinker burning, cement grinding, packaging and delivery, as well as the upstream limestone mining and coal production processes. Indirect environmental impacts arising from production and electricity production processes and raw material transportation. |
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 research scope includes raw material mining and processing, so it involves primary resources, energy consumption and pollution emissions of limestone, coal production, electricity production and raw material transportation. The data comes from the research results of Di Xianghua and Li Lu. In order to eliminate the difference in transportation distance, it is assumed that all limestone is transported by road using 20t diesel vehicles with a transportation distance of 10km, and raw coal is transported by rail with a 3000t diesel locomotive with a transportation distance of 100km.The cement production resource consumption data adopts the research results of Li Songbing. The energy consumption comes from the data published by the Cement Industry Association and refers to the "2010 Cement Industry Risk Analysis Report". The emission coefficients of powder (smoke) dust and SO2 and NOx pollutants in the exhaust gas adopt the 2008 Statistical results of China's pollution source census; CO2 emissions are estimated according to their sources. The research results of Gao Changming were used for the unpublished emission coefficient of JT vertical kiln. | ||||
Deviation from data selection and combination principles / explanations | None | ||||
Deviation from data treatment and extrapolations principles / explanations | None | ||||
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Completeness | |||||
Completeness of product model | No statement | ||||
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Time stamp (last saved) | 2024-03-19T21:18:09+08:00 |
Publication and ownership | |
UUID | dc6ebda0-f78c-410d-b214-069459042073 |
Date of last revision | 2024-04-20T14:41:27.434294+08:00 |
Data set version | 00.01.005 |
Permanent data set URI | https://lcadata.tiangong.world/showProcess.xhtml?uuid=dc6ebda0-f78c-410d-b214-069459042073&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 | 1450.0 kg | 1450.0 kg | ||||||
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Product flow | Energy carriers and technologies / Hard coal based fuels | 192.0 kg | 192.0 kg | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable energy resources from ground | 4.66 MJ | 4.66 MJ | ||||||
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Product flow | Materials production / Organic chemicals | 5.949999999999999E-4 kg | 5.949999999999999E-4 kg | ||||||
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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 | 2.0 kg | 2.0 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 1.58 kg | 1.58 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.849 kg | 0.849 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 684.0 kg | 684.0 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.108 kg | 0.108 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 1.22 kg | 1.22 kg | ||||||
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Product flow | Materials production / Other mineralic materials | 1000.0 kg | 1000.0 kg | ||||||
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