| Key Data Set Information | |
| Location | CN |
| Reference year | 2011 |
| Name |
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| Use advice for data set | Users of this data set should consider the energy and resource consumption, as well as waste emissions, as these factors significantly impact the environmental footprint during the production of aluminum products. The life cycle boundary for this dataset encompasses the process from bauxite mining to primary aluminum production, including bauxite extraction, alumina production, anode production, and the aluminum electrolysis process. Minor auxiliary materials like limestone and asphalt mining, production, and transportation processes are excluded from the assessment system. Hence, users must not include these auxiliary inputs in the environmental impact assessment related to alumina production when applying this data. |
| Technical purpose of product or process | The alumina produced using the Bayer process is primarily utilized for the purpose of metallurgy. This form of alumina is essential in the production of aluminum through the process of electrolysis, employing bauxite as a raw material. Due to its chemical and physical properties, metallurgical alumina is indispensable in creating the anodes for the electrolytic aluminum extraction process. |
| Classification |
Class name
:
Hierarchy level
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| General comment on data set | 我国氧化铝生产中拜耳法、烧结法、混联法三种工艺并行。因为我国铝土矿主要为品味较低的一水硬铝，单位资源与能源消耗较高。随着生产技术的进步，拜耳法生产的氧化铝在我国铝产量中的比例已经由2000年的11.4%提升到2010年的75.8%，而烧结法则由2000年的23.65%减至5.9%。拜耳法氧化铝生产过程中主要的能源介质为蒸汽、煤气或重油、电及焦炭。其中蒸汽约占60%，煤气或重油约占20%，电约占10%。 |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) |
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| Time representativeness | |
| Time representativeness description | Dissertation Completion Date |
| Technological representativeness | |
| LCI method and allocation | |||||
| Type of data set | Unit process, single operation | ||||
| 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 | |||||
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| Data generator | |
| Data set generator / modeller | |
| Data entry by | |
| Time stamp (last saved) | 2024-01-10T09:17:58+08:00 |
| Publication and ownership | |
| UUID | c475a175-a79e-48ae-98e5-8fe37132709e |
| Date of last revision | 2024-04-20T15:31:09.202844+08:00 |
| Data set version | 00.01.005 |
| Permanent data set URI | https://lcadata.tiangong.world/showProcess.xhtml?uuid=c475a175-a79e-48ae-98e5-8fe37132709e&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 | Energy carriers and technologies / Electricity | 807.48 MJ | 807.48 MJ | ||||
| Elementary flow | Resources / Resources from ground / Non-renewable material resources from ground | 2200.0 kg | 2200.0 kg | ||||
| Product flow | Energy carriers and technologies / Crude oil based fuels | 44.0 kg | 44.0 kg | ||||
| Product flow | Energy carriers and technologies / Heat and steam | 2250.0 m3 | 2250.0 m3 | ||||
| Product flow | Energy carriers and technologies / Crude oil based fuels | 131.0 kg | 131.0 kg | ||||
| Product flow | Energy carriers and technologies / Hard coal based fuels | 805.5 kg | 805.5 kg |
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 | 2162.0 kg | 2162.0 kg | ||||||
| Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 3.548 kg | 3.548 kg | ||||||
| Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 24.374 kg | 24.374 kg | ||||||
| Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.683 kg | 0.683 kg | ||||||
| Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 10.568 kg | 10.568 kg | ||||||
| 0.169 | 0.169 | ||||||||
| Elementary flow | Emissions / Emissions to air / Emissions to air, unspecified | 0.106 kg | 0.106 kg | ||||||
| Product flow | Emissions / Other substance type | 0.227 kg | 0.227 kg | ||||||
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| Product flow | Wastes / Production residues | 1302.0 kg | 1302.0 kg | ||||||
| |||||||||
| Product flow | Materials production / Metals and semimetals | 1000.0 m3 | 1000.0 m3 | ||||||