Chemical looping glycerol reforming for hydrogen production by Ni@ZrO2 nanocomposite oxygen carriers

被引：48

作者：

Jiang, Bo ^{[1
,2
]}

Li, Lin ^{[1
]}

Bian, Zhoufeng ^{[2
]}

Li, Ziwei ^{[2
]}

Sun, Yang ^{[1
]}

Sun, Zhehao ^{[1
]}

Tang, Dawei ^{[1
]}

Kawi, Sibudjing ^{[2
]}

Dou, Binlin ^{[3
]}

Goula, Maria A. ^{[4
]}

机构：

[1] Dalian Univ Technol, Minist Educ, Key Lab Ocean Energy Utilizat & Energy Conservat, Dalian 116023, Peoples R China

[2] Natl Univ Singapore, Dept Chem & Biomol Engn, Singapore 117585, Singapore

[3] Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai 200093, Peoples R China

[4] Western Macedonia Univ Appl Sci, Dept Environm & Pollut Control Engn, Lab Alternat Fuels & Environm Catalysis, Kozani 50100, Greece

来源：

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2018年 / 43卷 / 29期

基金：

美国国家科学基金会;

关键词：

Chemical looping reforming; Sorption enhanced; Oxygen carrier; Nickel; Lanthanide doping; Zirconia; WASTE COOKING OIL; HIGH-PURITY H-2; NI; ETHANOL; METHANE; CATALYSTS; CE; SUPPORT; CO2; LA;

D O I：

10.1016/j.ijhydene.2018.05.065

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The research describes the synthesis of nanocomposite Ni@ZrO2 oxygen carriers (OCs) and lanthanide doping effect on maintaining the platelet-structure of the nanocomposite OCs. The prepared OCs were tested in chemical looping reforming of glycerol (CLR) process and sorption enhanced chemical looping reforming of glycerol (SE-CLR) process. A series of characterization techniques including N-2 adsorption-desorption, X-ray diffraction (XRD), inductively coupled plasma optical emission spectrometry (ICP-OES), high resolution transmission electron microscopy (HRTEM), H-2 temperature-programmed reduction (H-2-TPR), H-2 pulse chemisorption and O-2 temperature-programmed desorption (O-2-TPD) were used to investigate the physical properties of the fresh and used OCs. The results show that the platelet-stack structure of nanocomposite OCs could significantly improve the metal support interaction (MSI), thus enhancing the sintering resistance. The effect of lanthanide promotion on maintaining this platelet-stack structure increased with the lanthanide radius, namely, La3+ > Ce3+ > Pr3+ > Yb3+. Additionally, the oxygen mobility was also enhanced because of the coordination of oxygen transfer channel size by doping small radius lanthanide ions. The CeNi@ZrO2 showed a moderate 'dead time' of 220 s, a high H-2 selectivity of 94% and a nearly complete glycerol conversion throughout a 50-cycle CLR test. In a 50-cycle SE-CLR stability test, the CeNi@ZrO2-CaO showed high H-2 purity of 96.3%, and an average CaCO3 decomposition percentage of 53% without external heating was achieved. (C) 2018 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

引用

页码：13200 / 13211

页数：12

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