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Title: Hydrogen production by chemical looping steam reforming of ethanol using NiO/montmorillonite oxygen carriers in a fixed-bed reactor
Author: Jiang, Bo1; Dou, Binlin1; Wang, Kaiqiang1; Zhang, Chuan1; Song, Yongchen1; Chen, Haisheng2; Xu, Yujie2
Source: CHEMICAL ENGINEERING JOURNAL
Issued Date: 2016-08-15
Volume: 298, Pages:96-106
Keyword: Chemical looping steam reforming ; NiO/montmorillonite ; Oxygen carriers ; Fixed-bed reactor
DOI: 10.1016/j.cej.2016.04.027
DOC Type: Article
English Abstract: Hydrogen production by chemical looping steam reforming of ethanol using oxygen carriers was carried out in a fixed-bed reactor. NiO/montmorillonite prepared by ultrasound assisted cation exchange impregnation method was used as oxygen carriers. The synthesized NiO/montmorillonite was characterized by N-2 adsorption-desorption, inductively coupled plasma optical emission spectrometry (ICP-OES), X-ray diffraction (XRD), transmission electron microscopy (TEM), H-2 temperature-programmed reduction (H-2-TPR), H-2 pulse chemisorption, temperature-programmed reduction (TPO) and thermal gravimetric analysis (TGA). The characterization results showed the particle size, metal-support interaction, nickel dispersion interrelated with cation exchange capability and confinement effect of montmorillonite's lamellar structure. Activity and stability tests were conducted at 550 degrees C with a steam to carbon ratio of 4. The results showed that 20Ni-MMT possessed the best performance due to its strong sintering and coking resistance, and also presented the shortest 'dead time' due to its larger active surface area. Moreover, 20Ni-MMT exhibited the excellent coke elimination ability in the air feed step. (C) 2016 Elsevier B.V. All rights reserved.
WOS Headings: Science & Technology ; Technology
WOS Subject: Engineering, Environmental ; Engineering, Chemical
WOS Subject Extended: Engineering
WOS Keyword Plus: SUPPORTED NICKEL-CATALYSTS ; NI-BASED CATALYSTS ; GAS SHIFT REACTION ; NI/AL2O3 CATALYST ; CARBON-MONOXIDE ; MONTMORILLONITE ; NANOPARTICLES ; IMPREGNATION ; GLYCEROL ; METHANE
Indexed Type: SCI
Funder: Natural Science Foundation of China(91434129 ; International Science and Technology Cooperation Program of China(2014DFA60600) ; Dalian(2015F11GH091) ; Fundamental Research Funds for the Central Universities(DUT15JJ(G)02) ; 51476022 ; 51276032 ; 51522605)
Language: 英语
WOS ID: WOS:000377309800011
Citation statistics:
Content Type: 期刊论文
URI: http://ir.etp.ac.cn/handle/311046/112460
Appears in Collections:中国科学院工程热物理所(论文库)_期刊论文(SCI)

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description.institution: 1.Dalian Univ Technol, Minist Educ, Key Lab Ocean Energy Utilizat & Energy Conservat, Sch Energy & Power Engn, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
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