Process information
| Key Data Set Information | |
| Location | DL-LN-CN |
| Geographical representativeness description | Dalian Jingang Tianma Cement Plant |
| Reference year | 2009 |
| Name |
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| Use advice for data set | When utilizing this dataset for Life Cycle Assessment (LCA) of cement products, ensure that the scope of your LCA incorporates the collection of raw materials, coal preparation, clinker calcination, and cement grinding stages. The dataset's functional unit is based on the production of 1 ton of cement. LCA practitioners should take into account the production line's operating days per year and the integration of mixed solid waste materials in the cement composition. Special attention must be given to the emission data during the clinker calcination stage, which includes CO2, SO2, and NOx. Due to regional variances in raw material composition and energy consumption patterns, the geographical and technological applicability should be considered when applying this data to cement manufacturing elsewhere. |
| Technical purpose of product or process | This industrial process is utilized for the production of cement, specifically ordinary Portland cement grade 42.4 and composite Portland cement grade 32.5. The new dry process rotary kiln technology is employed to create cement clinker at a rate of 4000 tons per day. This process incorporates mixed solid wastes like fly ash and blast furnace slag as part of the raw materials, emphasizing resource recovery and sustainability in the cement industry. This technology and cement product are applicable in construction projects requiring high-strength concrete and in areas where fly ash and slag are available as byproducts to be utilized in cement manufacturing. |
| Classification |
Class name
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Hierarchy level
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| General comment on data set | The new dry rotary kiln produces cement by mixing solid waste materials referred to as fly ash and blast furnace slag. |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Time representativeness | |
| Time representativeness description | The data collection time is 2009 and 2010. |
| Technological representativeness | |
| Flow diagram(s) or picture(s) | |
| Mathematical model | |
| Model description | The functional unit of cement life cycle assessment is 1 ton of cement product.The entire cement life cycle is divided into raw material preparation unit, pulverized coal preparation unit, clinker calcination unit and cement grinding unit. The raw material preparation stage (raw meal preparation) includes raw material crushing, grinding, drying and pre-homogenization processes; the pulverized coal preparation stage includes raw coal transportation, storage and grinding; the clinker calcination stage includes preheating decomposition and adding coal to the rotary kiln. During the heating process of powder and raw materials, CO2, SO2, NOx and other waste gases are emitted; the cement grinding stage includes gypsum, limestone crushing and cement grinding. |
Modelling and validation
Administrative information
Inputs and Outputs