Key Data Set Information | |
Location | CN |
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Use advice for data set | When using this data for life cycle assessment of Portland cement manufacturing process, consider the direct environmental impacts associated with raw material preparation, clinker burning, cement grinding, and packaging. Additionally, include the indirect environmental impacts related to upstream processes such as limestone mining, coal production, electricity production for the facility, and transportation of raw materials. It is recommended to use the data in accordance with the methodology outlined by Di Xianghua and Li Lu for transportation, and consider resource consumption data from Li Songbing's findings. The energy consumption data should be sourced from the Cement Industry Association's publications and analyzed in the context of the '2010 Cement Industry Risk Analysis Report'. Emission factors need to be derived from the 2008 Statistical results of China's pollution source census, and CO2 emissions should be estimated according to their respective origins in the process. |
Technical purpose of product or process | The ordinary Portland cement produced by the new dry process in a medium-scale facility (2000-4000 tons per day) is utilized in various concrete construction applications. This type of cement is typically employed in the construction of buildings, infrastructure, roads, and other projects where high strength and durability are required. |
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General comment on data set | The impact of a typical medium-scale(2000-4000t/d) new dry 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 | |
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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. | ||||
Deviation from data selection and combination principles / explanations | None | ||||
Deviation from data treatment and extrapolations principles / explanations | None | ||||
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Completeness of product model | No statement | ||||
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Data generator | |
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Time stamp (last saved) | 2024-03-19T21:18:09+08:00 |
Publication and ownership | |
UUID | 7b502d53-0fd4-4e8c-af70-9803b99beba3 |
Date of last revision | 2024-04-20T14:41:24.076121+08:00 |
Data set version | 00.01.005 |
Permanent data set URI | https://lcadata.tiangong.world/showProcess.xhtml?uuid=7b502d53-0fd4-4e8c-af70-9803b99beba3&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 | 1290.0 kg | 1290.0 kg | ||||||
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Product flow | Energy carriers and technologies / Hard coal based fuels | 198.0 kg | 198.0 kg | ||||||
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Elementary flow | Resources / Resources from ground / Non-renewable energy resources from ground | 4.64 MJ | 4.64 MJ | ||||||
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Product flow | Materials production / Organic chemicals | 5.98E-4 kg | 5.98E-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 | 1.87 kg | 1.87 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 1.61 kg | 1.61 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 1.85 kg | 1.85 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 691.0 kg | 691.0 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.111 kg | 0.111 kg | ||||||
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Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 1.26 kg | 1.26 kg | ||||||
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Product flow | Materials production / Other mineralic materials | 1000.0 kg | 1000.0 kg | ||||||
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