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La-hexaaluminate for synthesis gas generation by Chemical Looping Partial Oxidation of Methane Using CO2 as Sole Oxidant
Zhu, Yanyan1,2; Liu, Weiwei1; Sun, Xueyan1; Ma, Xiaoxun1; Kang, Yu2,3; Wang, Xiaodong2; Wang, Junhu2
KeywordChemical Looping Partial Oxidation Of Methane Oxygen Carrier Hexaaluminate Co2 Utilization
Source PublicationAICHE JOURNAL
2018-02-01
ISSN0001-1541
DOI10.1002/aic.15942
Volume64Issue:2Pages:550-563
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
WOS SubjectEngineering, Chemical
WOS Research AreaEngineering
WOS KeywordTEMPERATURE CATALYTIC COMBUSTION ; FE CRYSTALLOGRAPHIC SITES ; OXYGEN-CARRIER MATERIALS ; PEROVSKITE-TYPE OXIDES ; FIXED-BED REACTOR ; BARIUM HEXAALUMINATE ; CRYSTAL-STRUCTURE ; NATURAL-GAS ; MOSSBAUER-SPECTROSCOPY ; MEMBRANE REACTORS
AbstractChemical looping partial oxidation of methane using a sole CO2 oxidant (CL-POM-CO2) is an emerging technology for synthesis gas generation and CO2 utilization, which is highly dependent on an oxygen carrier (OC). In this work, Fe-substituted La-hexaaluminate as the OC was found to exhibit good reactivity and stability during 50 periodic CH4/CO2 redox cycles due to the formation of magnetoplumbite La-hexaaluminate structure with the introduction of La. Deeper reduction for synthesis gas generation did not destroy the La-hexaaluminate structure via a charge compensation mechanism, which increased CH4 reactivity and further improved CO2 utilization under subsequent re-oxidation. In the La-hexaaluminate structure, O-6-Fe3+(Oh) was highly active for the total oxidation of methane, while O-5-Fe3+(Tr) and O-4-Fe3+(Th) selectively oxidized CH4 to synthesis gas. The sole CO2 oxidant only selectively recovered O-5-Fe3+(Tr) and O-4-Fe3+(Th), and thus is more favorable for improving synthesis gas selectivity than O-2/air, which offers an attractive opportunity for CO2 utilization. (c) 2017 American Institute of Chemical Engineers AIChE J, 64: 550-563, 2018
Language英语
WOS IDWOS:000419108000012
PublisherWILEY
Citation statistics
Cited Times:8[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/168535
Collection中国科学院大连化学物理研究所
Corresponding AuthorWang, Xiaodong
Affiliation1.Northwest Univ, Minist Educ Adv Use Technol Shanbei Energy, Shaanxi Res Ctr Engn Technol Coal Convers, Sch Chem Engn,Chem Engn Res Ctr, Xian 710069, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhu, Yanyan,Liu, Weiwei,Sun, Xueyan,et al. La-hexaaluminate for synthesis gas generation by Chemical Looping Partial Oxidation of Methane Using CO2 as Sole Oxidant[J]. AICHE JOURNAL,2018,64(2):550-563.
APA Zhu, Yanyan.,Liu, Weiwei.,Sun, Xueyan.,Ma, Xiaoxun.,Kang, Yu.,...&Wang, Junhu.(2018).La-hexaaluminate for synthesis gas generation by Chemical Looping Partial Oxidation of Methane Using CO2 as Sole Oxidant.AICHE JOURNAL,64(2),550-563.
MLA Zhu, Yanyan,et al."La-hexaaluminate for synthesis gas generation by Chemical Looping Partial Oxidation of Methane Using CO2 as Sole Oxidant".AICHE JOURNAL 64.2(2018):550-563.
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