Resource utilization of calcium-based desulfurization ash in flue gas: a comprehensive review

被引：15
作者：
Meng, Dong-xiang [1 ]
Wei, Ru-fei [1 ]
Zhang, Fei-hu [1 ]
Long, Hong-ming [1 ,2 ]
Zhou, Yuan-yuan [3 ]
机构：
[1] Anhui Univ Technol, Sch Met Engn, Maanshan 243032, Anhui, Peoples R China
[2] Anhui Univ Technol, Key Lab Met Emiss Reduct & Resources Recycling, Minist Educ, Maanshan 243032, Peoples R China
[3] China Met Ind Planning & Res Inst, Ind Dev Res Ctr, Beijing 100013, Peoples R China
来源：
JOURNAL OF IRON AND STEEL RESEARCH INTERNATIONAL | 2023年 / 30卷 / 03期
基金：
中国国家自然科学基金;
关键词：
Calcium-based desulfurization ash; Oxidation modification; Building material; Calcium sulfate whisker; Flue gas desulfurization; FIRED POWER-PLANTS; SULFATE WHISKER; BY-PRODUCTS; FLY-ASH; GYPSUM; RUBBER; WASTE; MECHANISM; RESIDUES; STRENGTH;
D O I：
10.1007/s42243-022-00904-2
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
Calcium-based desulfurization ash (CDA) is mainly produced in dry and semi-dry flue gas desulfurization processes. The property of CDA is extremely unstable because its main component, calcium sulfite, makes it difficult to be directly applied to the field of building materials. The modification of desulfurization ash can be realized by high-temperature oxidation and wet oxidation. After modification, CDA can be widely used in building materials. Hydrothermal oxidation has broad development prospects because it can complete the oxidation of CDA and the removal of impurity elements at the same time. CDA can be used to prepare high value-added products of calcium sulfate whiskers and ecological rubber fillers.
引用
收藏
页码：405 / 418
页数：14
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