Oxygen uncoupling behaviour for ilmenite ore oxygen carrier generated from a calcination treatment mixed with natural manganese ore

doi:10.1002/cjce.24432

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	Oxygen uncoupling behaviour for ilmenite ore oxygen carrier generated from a calcination treatment mixed with natural manganese ore
	Liu, Xue 1,2; Li, Lin 1; Zhou, Zhihao 1; Sun, Zhenkun 1; Duan, Lunbo 1
刊名	CANADIAN JOURNAL OF CHEMICAL ENGINEERING
	2022-06-01
关键词	calcination chemical looping combustion ilmenite O-2 uncoupling
ISSN号	0008-4034
DOI	10.1002/cjce.24432
英文摘要	Chemical looping with O-2 uncoupling aims at using an oxygen carrier (OC) with O-2 uncoupling behaviour to promote fuel conversion. Natural ilmenite ores have been considered highly promising OCs for chemical looping technology; however, they do not possess any O-2 uncoupling behaviour. Mn-modified ilmenite ores as OCs are capable of O-2 uncoupling, while most of them are synthesized via complicated procedures by using costly chemicals. In this study, a strategy of calcination treatment on ilmenite ores mixed with manganese ores has been established to introduce Mn into the ilmenite OCs, endowing them with O-2 uncoupling behaviour in a simple and low-cost manner. The O-2 uncoupling behaviour from Mn-modified ilmenite ores is mainly due to the newly formed (Fe1-xMnx)(2)O-3/(Fe1-xMnx)(3)O-4 crystal phases generated during the calcination treatment, which also alleviate the thermodynamic limit of the Mn2O3-Mn3O4 redox pair. As a result, the Mn-modified ilmenite ore OCs can release O-2 at high temperatures when decreasing the oxygen partial pressure. But more importantly, the reduced OCs can be restored in the air isothermally. This established simple calcination treatment method can be used as a low-cost strategy for producing ilmenite-based OCs with O-2 uncoupling behaviour. The O-2 uncoupling behaviour is expected to be beneficial to chemical looping combustion of fuels, promote fuel conversion, minimize OC loading, and reduce energy consumption.
WOS研究方向	Engineering
语种	英语
出版者	WILEY
WOS记录号	WOS:000805022300001
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/158883]
专题	石油化工学院
作者单位	1.Southeast Univ, Sch Energy & Environm, Key Lab Energy Thermal Convers & Control, Minist Educ, Nanjing, Peoples R China; 2.Lanzhou Univ Technol, Sch Petrochem Engn, Dept Safety Engn, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Liu, Xue,Li, Lin,Zhou, Zhihao,et al. Oxygen uncoupling behaviour for ilmenite ore oxygen carrier generated from a calcination treatment mixed with natural manganese ore[J]. CANADIAN JOURNAL OF CHEMICAL ENGINEERING,2022.
APA	Liu, Xue,Li, Lin,Zhou, Zhihao,Sun, Zhenkun,&Duan, Lunbo.(2022).Oxygen uncoupling behaviour for ilmenite ore oxygen carrier generated from a calcination treatment mixed with natural manganese ore.CANADIAN JOURNAL OF CHEMICAL ENGINEERING.
MLA	Liu, Xue,et al."Oxygen uncoupling behaviour for ilmenite ore oxygen carrier generated from a calcination treatment mixed with natural manganese ore".CANADIAN JOURNAL OF CHEMICAL ENGINEERING (2022).