不同分解工艺下磷石膏分解制水泥熟料的LCA研究  

LCA Study on the Preparation of Cement Clinker by the Phosphogypsum Decomposition Under Different Decomposition Process

作　　者：张杭[1] 马丽萍[1] 胡建红[1] 毛宇[1] 戴取秀[1] 谢龙贵[1] 

机构地区：[1]昆明理工大学环境科学与工程学院,昆明650500

出　　处：《材料导报（纳米与新材料专辑）》2013年第1期302-305,共4页

基　　金：国家自然科学基金(21176108)

摘　　要：磷石膏是湿法磷酸生产过程中的副产品,大量的磷石膏废渣可引起水体和空气的环境污染,运用生命周期评价的方法,对循环流化床还原分解磷石膏制水泥熟料试验方法进行分析,并与传统的回转窑方法进行比较。研究结果表明,在工艺过程中的环境负荷主要体现在不可再生资源的消耗、不可再生能源的消耗和温室效应,所提出的试验方法较传统方法可减少工艺过程中对环境负荷的影响。Phosphogypsum was a by-production of the production of wet phosphoric acid, which caused envi- ronmental pollution containing water and air pollution. The method of life cycle assessment was used to analyze the test method of circulating fluidized bed reduced and decomposed phosphogypsum to make cement clinker, and it was com- pared with the traditional method of rotary kiln. The results show that the impact of cement production on environmen- tal load mainly reflected on the consumption of non-generation energy and non-reclaiming source, as well as green house effect. The test method which reduced the impact of the manufacturing process on the environment was proposed.

关 键 词：生命周期评价 磷石膏 水泥熟料 循环流化床 

分 类 号：TQ172.44[化学工程—水泥工业]