Phase reconstitution and reaction performance of oxygen carrier prepared from copper slag

被引：1
作者：
Zhong, Wenjun [1 ]
Dong, Xinjiang [2 ]
Feng, Yan [2 ]
Zuo, Zongliang [2 ,3 ,4 ]
Wang, Qian [1 ]
Lin, Xiaoqing [4 ]
机构：
[1] Jiangsu Univ, Sch Energy & Power Engn, Zhenjiang 212013, Jiangsu, Peoples R China
[2] Qingdao Univ Technol, Sch Environm & Municipal Engn, 777 Jialingjiang East Rd, Qingdao 266520, Shandong, Peoples R China
[3] Kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cl, 727 Jingming South Rd, Kunming 650093, Yunnan, Peoples R China
[4] Zhejiang Univ, State Key Lab Clean Energy Utilizat, 38 Zheda Rd, Hangzhou 310013, Peoples R China
来源：
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2024年 / 149卷 / 01期
关键词：
Copper slag; Oxygen carrier; Chemical looping combustion; CHEMICAL-LOOPING COMBUSTION; METAL-OXIDES; GASIFICATION; COAL; CU; FE; HEMATITE; BIOMASS; NI; PYROLYSIS;
D O I：
10.1007/s10973-023-12686-0
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Copper slag contains a large variety of resources that can be used, and is a kind of 'artificial ore'. This study proposed that the abundant metal oxides in copper slag can be used as oxygen carriers with high added value that can be applied to chemical looping combustion technology. The structure of oxides in copper slag can be transformed by copper concentrate to improve its oxygen-carrying and oxygen-releasing properties. Based on this, Cu-Fe composite oxygen carriers were prepared from copper slag in this paper. It is found that heating rate has a certain effect on the phase formation of oxygen carriers during preparation. Under experimental conditions, a heating rate of 2 degrees C min-1 is more suitable for preparing oxygen carriers. In addition, it is found that the composite oxygen carrier generated by the mixed calcination of copper slag and copper concentrate has a synergistic effect with CuFe2O4 phase. Oxygen decoupling and oxygen transport capacity and reaction activity were all improved.
引用
收藏
页码：63 / 74
页数：12
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