Process information
| Key Data Set Information | |
| Location | CN |
| Reference year | 2005 |
| Name |
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| Use advice for data set | The data set provided represents the environmental impact of producing 42.5# ordinary Portland cement using a new dry process and is based on the performance of 1 ton of cement with a 28-day compressive strength of 42.5MPa as well as the proportional impact of 32.5# cement. it is advised that users apply this data for life cycle assessments of projects where this type of cement is utilized, taking care to adjust the values based on the specific amount and type of cement used in the project. The study scope includes raw meal preparation, clinker calcination, cement grinding, while excluding other stages beyond the system boundary like transportation and installation. It also includes raw material consumption and energy use, considering emissions like dust, CO2, and SO2. Users should pay attention to the methodology of converting 32.5# cement into 42.5# cement for their assessment purposes. |
| Technical purpose of product or process | The industrial process described is the production of 42.5MPa ordinary Portland cement using the new dry method, which involves two 2000 tonnes per day production lines. This type of cement is predominantly utilized in the construction industry for creating concrete structures and products that require a high level of strength and durability. It is suitable for a broad range of applications including the construction of buildings, bridges, highways, and other infrastructure projects. |
| Classification |
Class name
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Hierarchy level
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| General comment on data set | Two 2000t/d new dry process production lines. |
| Copyright | No |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) | |
| Time representativeness | |
| Time representativeness description | 2005-2006 |
| Technological representativeness | |
| Technology description including background system | Two 2000t/d new dry production lines |
| Flow diagram(s) or picture(s) | |
| Mathematical model | |
| Model description | The performance of 1 ton of 42.5# ordinary Portland cement with a 28-day compressive strength of 42.5MPa is selected as a functional unit. The 32.5# cement is converted into 42.5# cement according to the ratio of 1:1.25, which is regarded as 1 One unit of 32.5# cement has a similar environmental impact as 1.25 units of 42.5# cement. The scope of the study is raw meal preparation, clinker calcination and cement grinding. The rest are excluded from the system boundary. The main raw material consumption involved is limestone, clay raw materials, gypsum, etc. The energy consumed includes coal, electricity and a certain amount of fuel oil, and emit dust and environmentally polluting gases such as carbon dioxide and sulfur dioxide. |
Modelling and validation
Administrative information
Inputs and Outputs