Process information
| Key Data Set Information | |
| Location | HLJ-CN |
| Reference year | 2008 |
| Name |
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| Use advice for data set | When utilizing this data set, LCA practitioners should base their analysis on the functional unit of 1kg of cement with a 28-day compressive strength of 42.5MPa. Users should include emissions such as nitrogen oxides, sulfur dioxide, carbon dioxide, and dust in their impact assessment. The environmental impact of clay resource consumption and iron powder used as a corrective material should be omitted from the analysis at this stage. The methodological boundary includes raw meal preparation, clinker calcination, and cement production, and users should carefully consider the technological applicability of the shaft kiln which is specific to this regional industry. |
| Technical purpose of product or process | This specific portland cement, characterized by a 28-day compressive strength of 42.5MPa, is suited for general construction purposes including infrastructure, buildings, and civil engineering projects that require a high grade of structural integrity. Its production process using a shaft kiln is particularly relevant to the region of Heilongjiang Province in the context of the current technological capabilities of the cement industry. |
| Classification |
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| General comment on data set | Shaft kiln is used for the production of portland cement. A study was conducted on the process flow and operating parameters of the rotary kiln technology currently available in the cement industry in Heilongjiang Province, and input and output data of the established product system were collected and calculated and quantified. |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Technological representativeness | |
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| Mathematical model | |
| Model description | The functional unit is the performance of 1kg cement with a 28-day compressive strength of 42.5MPa, that is, 1Fu=42.5kgMPa. The scope of evaluation is raw meal preparation, clinker calcination and cement preparation. The environmental load caused by the consumption of clay resources is not considered for the time being. Iron powder is an iron correction material, and its environmental impact will not be considered. The wastes considered to be emitted at the output end of the product system mainly include nitrogen oxides, sulfur dioxide, carbon dioxide and dust. |
Modelling and validation
Administrative information
Inputs and Outputs