摘要
脱硫石膏是一种产量巨大的火电厂固体废弃物,主要来源于锅炉尾部烟气湿法脱硫。目前国内脱硫石膏年产量可达8000万t以上,利用率在80%左右。近年来,随着脱硫石膏产量的逐渐增大,相关决策部门制定了多项政策法规支持脱硫石膏的资源化利用。脱硫石膏有多种利用途径,其中利用量最大的途径为石膏建筑材料以及水泥缓凝剂,其他利用途径有制备复合凝胶材料、改良土壤、制备硫酸钙晶须、制备其他高附加值化学物质等。介绍了脱硫石膏各利用方向的最新研究动态,并对脱硫石膏的资源化利用提出建议。
Desulfurization gypsum is one of solid waste from power plants boiler flue gas desulfurization.Currently,its production reaches 80 million-tons per year and its utilization percent is 80%in China.In last years,governments have made a lot of policies and rules to support its reuse as the production of desulfurization gypsum grows.The most widely used resource utilization methods of desulfurization gypsum are building materials and cement retarder.Also,other methods are researched including composite gel material,soil amendments,calcium sulfate whisker and high valuable chemicals.This article reviews the recent and various kinds of research status on desulfurization gypsum resource utilization,while some proposals are offered to promote its reuse.
作者
项飞鹏
陈锡炯
刘春红
杜凯敏
王勤辉
XIANG Feipeng;CHEN Xijiong;LIU Chunhong;DU Kaimin;WANG Qinhui(Zhejiang Energy R&D Institute Co.Ltd.,Hangzhou 311121,China;Key Laboratory of Energy Conservation&Pollutant Control Technology for Thermal Power of Zhejiang Province,Hangzhou 311121,China;Zhejiang Zheneng Changxing Power Generation Co.Ltd.,Huzhou 313100,China;College of Energy Engineering,Zhejiang University,Hangzhou 310027,China)
出处
《新型建筑材料》
2021年第6期25-30,共6页
New Building Materials
关键词
脱硫石膏
资源化利用
石膏建材
水泥缓凝剂
desulfurization gypsum
resource utilization
gypsum products
cement retarder
