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Investigation on gasification performance of sewage sludge using chemical looping gasification with iron ore oxygen carrier
Huang, Zhen1,2,3,4; Xu, Genli3; Deng, Zhengbing1,2; Zhao, Kun1,2,5; He, Fang1,2; Chen, Dezhen3; Wei, Guoqiang1,2; Zheng, Anqing1,2; Zhao, Zengli1,2; Li, Haibin1,2
2017-10-05
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume42Issue:40Pages:25474-25491
AbstractChemical looping gasification (CLG), with inherent characteristic of low pollutant emissions can realize the treatment and disposal principle of sewage sludge of harmlessness, reduction, stabilization and reutilization. This work attempted to investigate the feasibility of CLG of sewage sludge with hematite oxygen carrier. The role of hematite in CLG was firstly determined and it was used as gasification agent to provide the required oxygen for sludge conversion. Subsequently, the effect of various operating parameters on sludge CLG was discussed. An optimal mass ratio of sludge to hematite oxygen carrier was determined at 0.33 to achieve the high-efficient conversion of sludge. The reaction temperature of sludge gasification was set at 900 degrees C to avoid the excessive reduction of hematite. Suitable steam content was assigned to at 19.52%, where the sludge conversion attained the maximum. Ash deposited caused the decrease of specific surface area of hematite, but the accumulated mineral elements in sludge ash can improve the reactivity of oxygen carrier. Additionally, the ash accumulation also can prolong the gas mean residence time. Hence, the sludge conversion showed a slight uptrend with the cycle numbers. The phosphorus element of sludge was formed of CaH2P2O7 and CaHPO4 during the CLG. Although some sludge ash deposited on the surface of hematite particles, the new compounds were not observed in the reacted oxygen carrier. Additionally, sludge ash has a relatively high resistance trend for bed agglomeration and deposit formation due to the high content of Ca/Al elements. Consequently, the accumulation of sludge ash only reveals physical effects rather than chemical effects on the hematite particles. Thus, it is easy to separate the sludge ash from hematite particles according to the differences in density and size. (C) 2017 Published by Elsevier Ltd on behalf of Hydrogen Energy Publications LLC.
SubtypeArticle
KeywordSewage Sludge Chemical Looping Gasification (Clg) Gasification Performance Iron Ore Synthesis Gas
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.ijhydene.2017.08.133
WOS Subject ExtendedChemistry ; Electrochemistry ; Energy & Fuels
WOS KeywordCIRCULATING FLUIDIZED-BED ; SYNTHESIS GAS-PRODUCTION ; BIOMASS GASIFICATION ; HYDROGEN-PRODUCTION ; AIR GASIFICATION ; NATURAL HEMATITE ; LAND APPLICATION ; CARBON-DIOXIDE ; SOLID FUELS ; FLY-ASH
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of China(51406214 ; National Natural Science Foundation of China(51406214 ; Natural Science Foundation of Guangdong Province(2015A030313719) ; Natural Science Foundation of Guangdong Province(2015A030313719) ; Science & Technology Research Project of Guangdong Province(2013B050800008 ; Science & Technology Research Project of Guangdong Province(2013B050800008 ; Foundations of State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization ; Foundations of State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization ; Foundations of Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education(2015005) ; Foundations of Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education(2015005) ; 51406208) ; 51406208) ; 2015A010106009) ; 2015A010106009) ; National Natural Science Foundation of China(51406214 ; National Natural Science Foundation of China(51406214 ; Natural Science Foundation of Guangdong Province(2015A030313719) ; Natural Science Foundation of Guangdong Province(2015A030313719) ; Science & Technology Research Project of Guangdong Province(2013B050800008 ; Science & Technology Research Project of Guangdong Province(2013B050800008 ; Foundations of State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization ; Foundations of State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization ; Foundations of Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education(2015005) ; Foundations of Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education(2015005) ; 51406208) ; 51406208) ; 2015A010106009) ; 2015A010106009)
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS IDWOS:000413284500033
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/16390
Collection固体废弃物能实验室
Corresponding AuthorZhao, Kun; He, Fang
Affiliation1.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou Inst Energy Convers, Beijing, Peoples R China
2.Chinese Acad Sci, Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou Inst Energy Convers, Beijing, Peoples R China
3.Tongji Univ, Thermal & Environm Engn Inst, Shanghai, Peoples R China
4.Kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cl, Kunming, Yunnan, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Huang, Zhen,Xu, Genli,Deng, Zhengbing,et al. Investigation on gasification performance of sewage sludge using chemical looping gasification with iron ore oxygen carrier[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2017,42(40):25474-25491.
APA Huang, Zhen.,Xu, Genli.,Deng, Zhengbing.,Zhao, Kun.,He, Fang.,...&Li, Haibin.(2017).Investigation on gasification performance of sewage sludge using chemical looping gasification with iron ore oxygen carrier.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,42(40),25474-25491.
MLA Huang, Zhen,et al."Investigation on gasification performance of sewage sludge using chemical looping gasification with iron ore oxygen carrier".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 42.40(2017):25474-25491.
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