磷石膏制硫酸联产水泥过程中的碳排放核算  

Carbon emission assessment in the process of production of sulfuric acid integrated with cement from phosphogypsum

作　　者：徐振华 黄绪泉 刘立明 XU Zhenhua;HUANG Xuquan;LIU Liming(Yangtze Ecology and Environment Co.,Ltd.,Wuhan 430062,China;Hubei Province College-enterprise Cooperation Innovation Center for Comprehensive Utilization of Phosphogypsum,Yichang 443002,China;Engineering Research Center of Cement-based Ecological Restoration Technology of Hubei Province,Yichang 443002,China)

机构地区：[1]长江生态环保集团有限公司,湖北武汉430062 [2]湖北省磷石膏资源化综合利用企校联合创新中心,湖北宜昌443002 [3]湖北省水泥基生态修复技术工程研究中心,湖北宜昌443002

出　　处：《磷肥与复肥》2022年第2期46-48,共3页Phosphate & Compound Fertilizer

基　　金：宜昌市自然科学研究项目(A21-3-003)资助。

摘　　要：对磷石膏制硫酸联产水泥全过程资源和能源消耗进行分析,按照GB/T 32151.10—2015计算生产过程中的碳排放量。结果表明,磷石膏制硫酸联产水泥过程中生产H_(2)SO_(4)1 t合计排放CO_(2)0.94 t,其中煤燃烧是最大的碳排放贡献者。使用磷石膏制硫酸联产水泥替代传统方法生产相同质量水泥熟料,可以减排CO_(2)0.14 t。同时采用磷石膏制硫酸联产水泥可以节约大量的硫黄,以2019年我国硫酸产量为例计算,全国可以节约硫黄资源1370.1万t。The resources and energy consumption in the whole process of production of sulfuric acid integrated with cement from phosphogypsum are analyzed.Carbon emissions during production are calculated according to GB/T 32151.10—2015.The results show the total carbon emission in the process of producing sulfuric acid integrated with cement from phosphogypsum is 0.94 t.Coal combustion as fuel is the largest contributor to carbon emissions of production process.Production of sulfuric acid integrated with cement from phosphogypsum instead of traditional methods to produce cement with the same quality can reduce carbon emission by 0.14 t.Production of sulfuric acid integrated with cement from phosphogypsum can save a lot of sulfur.It could be saved 13.701 million tons of sulfur resources in China with the quality of sulfur-burning sulfuric acid in 2019.

关 键 词：磷石膏 资源利用 碳排放 温室气体 循环经济 

分 类 号：X781[环境科学与工程—环境工程]