Multiscale investigation of pore network heterogeneity and permeability of fluid catalytic cracking (FCC) particles

doi:10.1016/j.cej.2022.135843

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	Multiscale investigation of pore network heterogeneity and permeability of fluid catalytic cracking (FCC) particles
	Qie, Zhipeng 2,3; Rabbani, Arash 3; Liang, Yan 4; Sun, Fei 2; Behnsen, Julia 1; Wang, Ying 1; Wang, Shaogang 4; Zhang, Yuming 5; Alhassawi, Hassan 3; Gao, Jihui 2
刊名	CHEMICAL ENGINEERING JOURNAL
	2022-07-15
卷号	440 页码:10
关键词	Fluid catalytic cracking (FCC) X-ray computed tomography (CT) Focused ion beam-scanning electron micro- scope (FIB-SEM) Pore size distribution Permeability Heterogeneity
ISSN号	1385-8947
DOI	10.1016/j.cej.2022.135843
通讯作者	Sun, Fei(sunf@hit.edu.cn) ; Jiao, Yilai(yljiao@imr.ac.cn) ; Fan, Xiaolei(xiaolei.fan@manchester.ac.uk)
英文摘要	Pore network is regarded as one of the most important aspects of FCC (Fluid Catalytic Cracking) catalysts for delivering reactants to active sites and transporting out products, and the structure of which can significantly influence the process efficiency. In this work, six characterization methods complementing each other were employed to study the full-scale pore structure (0.4 nm 20 mu m) of fresh FCC particles, especially the X-ray computed tomography (CT) and focused ion beam-scanning electron microscope (FIB-SEM). To focus on nano scale pores, 3D reconstruction of a whole FCC particle was achieved based on nano-CT, from which the pore network model (PNM) was successfully extracted. Then, permeability simulations along different directions and through various sub-volumes were carried out to demonstrate the anisotropy and heterogeneity of pore structure, respectively. It was also found that the tortuosity of the pores distributed in the outer layer of the FCC particle was more significant than that in the central part of the particle, which could be the mass transfer limiting region during catalysis. Comprehensive acknowledgment of pore structure provides guidance for the optimization of the design of FCC particles, and the multi-scale characterization strategy is a generic strategy for in-depth investigation of structured porous materials.
资助项目	China Scholarship Council[201906120207] ; National Natural Science Foundation of China[U1862107]
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000783179000004
资助机构	China Scholarship Council ; National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/172881]
专题	金属研究所_中国科学院金属研究所
通讯作者	Sun, Fei; Jiao, Yilai; Fan, Xiaolei
作者单位	1.Univ Manchester, Sch Mat, Henry Royce Inst Adv Mat, Manchester M13 9PL, Lancs, England 2.Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Peoples R China 3.Univ Manchester, Sch Engn, Dept Chem Engn, Manchester M13 9PL, Lancs, England 4.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 5.China Univ Petr, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China
推荐引用方式 GB/T 7714	Qie, Zhipeng,Rabbani, Arash,Liang, Yan,et al. Multiscale investigation of pore network heterogeneity and permeability of fluid catalytic cracking (FCC) particles[J]. CHEMICAL ENGINEERING JOURNAL,2022,440:10.
APA	Qie, Zhipeng.,Rabbani, Arash.,Liang, Yan.,Sun, Fei.,Behnsen, Julia.,...&Fan, Xiaolei.(2022).Multiscale investigation of pore network heterogeneity and permeability of fluid catalytic cracking (FCC) particles.CHEMICAL ENGINEERING JOURNAL,440,10.
MLA	Qie, Zhipeng,et al."Multiscale investigation of pore network heterogeneity and permeability of fluid catalytic cracking (FCC) particles".CHEMICAL ENGINEERING JOURNAL 440(2022):10.