Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| Long-term coal chemical looping gasification using a bimetallic oxygen carrier of natural hematite and copper ore | |
Liu, Siqi1,2,3,4; He, Fang1 ; Zhao, Kun2,3,4; Zhao, Haibo5; Huang, Zhen2,3,4; Wei, Guoqiang2,3,4; Yang, Wen1
| |
| 2022-02-01 | |
| Source Publication | FUEL
 |
| ISSN | 0016-2361 |
| Volume | 309Pages:11 |
| Corresponding Author | He, Fang(hefang@glut.edu.cn) ; Zhao, Kun(zhaokun@ms.giec.ac.cn) |
| Abstract | Coal chemical looping gasification (CCLG) is a promising gasification technology for coal utilization with high resource utilization rate, energy saving and environmental protection properties. Development of suitable oxygen carriers and optimization of operating conditions for CCLG are the key for the coal conversion and H2&CO production (H2, CO). In this study, Cu-Fe bi-ore oxygen carrier prepared by spray drying granulation method using hematite and copper ore as raw materials was tested for CCLG. The effects of the reaction temperature, oxygen carrier to coal (O/L) ratio and steam addition amounts were systematically evaluated by reaction tests combing with various analytical methods. Most importantly, over 100 redox chemical looping cycles were performed to demonstrate the excellent stability of Cu-Fe bi-ore oxygen carrier during the redox reactions. Results showed that the optimal gasification condition is 950 degrees C with oxygen carrier-to-coal mass ratio of 3:1 and steam rate of 0.08 ml/min. Syngas yield of 58 mmol/g, as well as 75.2% syngas selectivity and 85.3% carbon conversion were achieved. After 100 redox cycles, the synthesis gas yield can still reach 46 mmol/g despite a decline, and the carbon conversion kept above 72%, without obvious sintering in the long-term test. The characterization results showed that the synergistic effect between Cu and Fe metals contributed to its good oxygen release ability and reducibility. The Cu-Fe bi-ore oxygen carrier undergoes a gradual reduction Fe3+_*Fe8/3+_*Fe2+_*Fe and Cu2+_*Cu process during the gasification reaction, accompanying with the lattice oxygen migration from bulk to the particle surface. This work demonstrated the economical method for the industrial application of CCLG process using spray-drying-derived oxygen carriers. |
| Keyword | Chemical looping gasification Coal Syngas Cu-Fe oxygen carrier Spray drying |
| DOI | 10.1016/j.fuel.2021.122106 |
| WOS Keyword | CO2 CAPTURE ; MIXED-OXIDE ; COMBUSTION ; PYROLYSIS ; HYDROGEN ; SYNGAS ; PERFORMANCE ; TECHNOLOGY ; BIOMASS |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Key R&D Program of China[2018YFB0605402] ; National Natural Science Foundation of China[51876205] ; National Natural Science Foundation of China[22179027] ; Youth Innovation Promotion Association, CAS[2019341] ; Youth Innovation Promotion Association, CAS[2018383] ; Pearl River S&T Nova Program of Guangzhou[201906010092] ; Pearl River S&T Nova Program of Guangzhou[201806010061] |
| WOS Research Area | Energy & Fuels ; Engineering |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association, CAS ; Pearl River S&T Nova Program of Guangzhou |
| WOS Subject | Energy & Fuels ; Engineering, Chemical |
| WOS ID | WOS:000706524700005 |
| Publisher | ELSEVIER SCI LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/35057 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | He, Fang; Zhao, Kun |
| Affiliation | 1.Guilin Univ Technol, Coll Chem & Bioengn, Guilin 541004, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 5.Huazhong Univ Sci & Technol, Sch Energy & Power Engn, State Key Lab Coal Combust, Wuhan 430074, Peoples R China |
| First Author Affilication | GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Liu, Siqi,He, Fang,Zhao, Kun,et al. Long-term coal chemical looping gasification using a bimetallic oxygen carrier of natural hematite and copper ore[J]. FUEL,2022,309:11. |
| APA | Liu, Siqi.,He, Fang.,Zhao, Kun.,Zhao, Haibo.,Huang, Zhen.,...&Yang, Wen.(2022).Long-term coal chemical looping gasification using a bimetallic oxygen carrier of natural hematite and copper ore.FUEL,309,11. |
| MLA | Liu, Siqi,et al."Long-term coal chemical looping gasification using a bimetallic oxygen carrier of natural hematite and copper ore".FUEL 309(2022):11. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment