CAS OpenIR
Preparation of CaO-containing carbon pellet from recycling of carbide slag: Effects of temperature and H3PO4
Zhang, Junqiang1,2; Wang, Zhishuai2; Li, Tong2; Wang, Zhi2; Zhang, Shu3; Zhong, Mei1; Liu, Yue'e1; Gong, Xuzhong2,4
2019-02-01
Source PublicationWASTE MANAGEMENT
ISSN0956-053X
Volume84Pages:64-73
AbstractCaO-containing carbon pellets (CCCP) was prepared by mixing carbide slag (Ca(OH)(2)) and powdered char to produce CaC2, achieving the recycling of carbide slag during CaC2 production process. The thermal strength of CCCP was the focus of most attention when employing arc furnaces as reactors for CaC2 production in industry. To improve the thermal strength of CCCP, H3PO4 was used as a binder in this study. The results indicated that Ca-3(PO4)(2) reacted by H3PO4 and Ca(OH)(2) could help refine the average particle sizes of CaO, resulted in a relatively uniform pore diameter distribution of CCCP with low porosity, therefore improving the thermal strength of CCCP. When H3PO4 content was more than 8 wt%, some over-sintering and melting structure for CaO articles appear, and thus resulting in the decrease in thermal strength of CCCP. The experimental results show that CCCP with 3% H3PO4 has the best thermal strength at 1100 degrees C. The non-isothermal shrinkage kinetics of CCCP indicated that the addition of 3% H3PO4 reduced the apparent activation energy of sintering reactions and accelerated the sintering of CaO particles in CCCP. Furthermore, the addition of H3PO4 has a positive effect on the formation of CaO sintered necks, enhancing the strength of CCCP. (C) 2018 Elsevier Ltd. All rights reserved.
KeywordCarbide slag Recycling CaO-containing carbon pellet (CCCP) Thermal strength Shrinkage kinetics
DOI10.1016/j.wasman.2018.11.033
Language英语
WOS KeywordCALCIUM CARBIDE ; CO2 CAPTURE ; COMPRESSIVE STRENGTH ; CAC2 PRODUCTION ; COAL ; BINDER ; MICROSTRUCTURE ; PERFORMANCE ; PYROLYSIS ; PHOSPHATE
Funding ProjectNatural Science Foundation of China ; Youth Science and technology innovation personnel training project in Xinjiang Uygur Autonomous Region[U1610101] ; Youth Science and technology innovation personnel training project in Xinjiang Uygur Autonomous Region[51422405] ; Youth Science and technology innovation personnel training project in Xinjiang Uygur Autonomous Region[QN2016BS0152]
WOS Research AreaEngineering ; Environmental Sciences & Ecology
WOS SubjectEngineering, Environmental ; Environmental Sciences
Funding OrganizationNatural Science Foundation of China ; Youth Science and technology innovation personnel training project in Xinjiang Uygur Autonomous Region
WOS IDWOS:000458226800007
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/27874
Collection中国科学院过程工程研究所
Corresponding AuthorZhong, Mei; Gong, Xuzhong
Affiliation1.Xinjiang Univ, Coll Chem & Chem Engn, Key Lab Coal Clean Convers & Chem Engn Proc Xinji, Urumqi, Xinjiang, Peoples R China
2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
3.Nanjing Forestry Univ, Coll Mat Sci & Engn, Nanjing 210037, Jiangsu, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Junqiang,Wang, Zhishuai,Li, Tong,et al. Preparation of CaO-containing carbon pellet from recycling of carbide slag: Effects of temperature and H3PO4[J]. WASTE MANAGEMENT,2019,84:64-73.
APA Zhang, Junqiang.,Wang, Zhishuai.,Li, Tong.,Wang, Zhi.,Zhang, Shu.,...&Gong, Xuzhong.(2019).Preparation of CaO-containing carbon pellet from recycling of carbide slag: Effects of temperature and H3PO4.WASTE MANAGEMENT,84,64-73.
MLA Zhang, Junqiang,et al."Preparation of CaO-containing carbon pellet from recycling of carbide slag: Effects of temperature and H3PO4".WASTE MANAGEMENT 84(2019):64-73.
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