297fc5af-6565-4464-b4c6-61dafb8f93d8 cement production;cement, ordinary portland cement, 42.5MPa 水泥生产;水泥, 普通硅酸盐水泥, 42.5MPa Unit processes Materials production Other mineralic materials The environmental loading of cement production under usual cement production. 通常水泥生产下水泥生产的环境负荷情况。 11 This data set represents the environmental loading of the production of ordinary Portland cement with a strength grade of 42.5MPa. Such cement is widely used in general construction works, including commercial and residential buildings, bridges, and roads, providing the necessary structural integrity and durability for a range of construction projects. 此数据集代表42.5MPa强度等级的普通硅酸盐水泥生产的环境负荷。该水泥广泛用于一般建筑工程，包括商业和住宅建筑、桥梁和道路，为各种建设项目提供必要的结构完整性和耐久性。 Functional unit definition: Take the performance of 1t 42.5 ordinary Portland cement as a functional unit. The system boundary is: from raw material entering the factory, raw material pretreatment, raw meal grinding, raw meal calcination, clinker grinding, until cement homogenization and storage, that is, the direct production process of cement in the entire cement plant, excluding raw material mining, Processing and transportation process. The geographical scope of the study is the Beijing area. 功能单位定义：以1t 42.5普通硅酸盐水泥所具有的使用性能作为一个功能单位。系统边界为：从原料进厂、原料预处理、生料粉磨、生料煅烧、熟料粉磨，直至水泥均化、储存为止即水泥在整个水泥厂的直接生产过程，不包括原料开采、加工、运输过程。研究地理范围为北京地区。 Unit process, black box None 无 None 无 None 无 None 无 None 无 崔素萍, 吴红, 聂祚仁, & 王志宏. (2006). 水泥窑处理固体废弃物环境影响评价. 中国水泥, 7, 50–52. 崔素萍, 吴红, 聂祚仁, & 王志宏. (2006). 水泥窑处理固体废弃物环境影响评价. 中国水泥, 7, 50–52. When using this data set for Life Cycle Assessment, it is important to maintain the defined system boundaries, which include the direct production process within the cement plant from raw material entry, preparation, and grinding, to the homogenization and storage of cement. Exclude consideration of raw material extraction, processing, and transportation from the analysis unless these actions take place within the defined geographical scope of the study, which is the Beijing area. Additionally, for studies requiring geographical specificity, consider the relevance of the data strictly within the context of the Beijing area cement production practices. 在使用此数据集进行生命周期评估时，应维护定义的系统边界，包括从原料进厂、预处理和磨粉到水泥均化和储存的水泥厂内的直接生产过程。除非这些活动发生在研究定义的地理范围内，即北京地区，否则从分析中排除原料开采、加工和运输的考虑。此外，对于需要地理特定性的研究，请严格考虑数据在北京地区水泥生产实践上下文中的相关性。 Inventory: The internal review was done by several iteration steps concerning raw data validation, raw data documentation, representativity, completeness and consistency of modelling with regard to ISO 14040 and 14044. 清单： 内部审查通过几个迭代步骤完成，涉及原始数据验证、原始数据记录、代表性、完整性、与 ISO 14040 和 14044 有关的建模的一致性。 Tiangong LCI Data Working Group 天工LCI数据工作小组 #REF!, ysqsophia@gmail.com ysqsophia@gmail.com ysqsophia@gmail.com 2024-03-19T21:18:09+08:00 2024-04-20T14:41:27.440850+08:00 00.01.005 https://lcadata.tiangong.world/showProcess.xhtml?uuid=297fc5af-6565-4464-b4c6-61dafb8f93d8&version=01.00.000&stock=TianGong Tiangong LCI Data Working Group 天工LCI数据工作小组 false Free of charge for all users and uses limestone, crushed, for mill Input 1318.5 1318.5 Limestone 石灰石 clay Input 94.5 94.5 Clay-based raw materials 黏士质原料 iron, powder Input 27.0 27.0 Iron corrective raw materials 铁质校正原料 gypsum stone (CaSO4-dihydrate) Input 60.0 60.0 The proportion of gypsum is 5.5% 石膏占比为5.5% mixed materials, mineral Input 200.0 200.0 Mixed material 混合材 hard coal;  26.3 MJ/kg Input 120.0 120.0 Coal consumption kg 煤耗kg Electricity Input 363.6 363.6 Power consumption 电耗 Nitrogen oxides Output 1.88 1.88 NOx NOx sulfur dioxide Output 0.004 0.004 SO2 SO2 particles (> PM10) Output 12.0 12.0 Dust, with an unspecified particle size, is treated as PM > 10 micrometers in diameter. 粉尘，未标明粒径，按PM>10处理。 carbon dioxide (fossil) Output 772.0 772.0 CO2. Since the volume of CO2 is generally not detected, the emissions are calculated according to the following formulas. CO2 generates the combustion of fossil energy such as fuel, coal-fired and other fossils, as well as limestone decomposition in cement production raw materials. (1) CO2 emissions of fossil energy combustion are calculated as follows: e = 3.67fqka. E is the emissions of CO2, KG; F is the consumption of fuel, kg; Q is fuel thermal mass, mj/kg; K is the carbon emissions coefficient of fuel; A is the carbon oxidation rate of fuel. (2) During the production of cement, the chemical reactions of raw materials limestone generate a large number of CO2 chemical reactions: CACO3 → Cao+CO2 ↑. The percentage of 1kg of limestone CAO is calculated at 48%. In the end, the estimated formula for CO2 emissions is: CO2 emissions = limestone consumption*0.38+e = 271kg+501kg = 772kg. CO2。由于CO2排放量一般不做检测，排放量按下列公式计算。 CO2生成主要产生于燃料、燃煤等化石能源的燃烧以及水泥生产原料中的石灰石分解。（1）化石能源燃烧的CO2排放量计算如下：E=3.67FQka。E为CO2的排放量，kg；F为燃料的消耗量，kg；Q为燃料发热量，MJ/kg；k为燃料的碳排放系数；a为燃料的碳氧化率。（2）水泥生产过程中，原料石灰石的化学反应产生大量的CO2其化学反应见式：CaCO3→CaO+CO2↑。1kg石灰石的CaO的百分含量按48%计算。最后得CO2排放量的估算公式为：CO2排放量=石灰石消耗量*0.38+E=271kg+501kg=772kg。 cement, ordinary portland cement, 42.5MPa Output 1000.0 1000.0 42.5 Ordinary silicate cement 42.5普通硅酸盐水泥