Synthesis gas generation by chemical-looping selective oxidation of methane using Pr1-xZrxO2-δ oxygen carriers

被引：13

作者：

Du, Yunpeng ^{[1
,2
]}

Zhu, Xing ^{[1
,2
]}

Wang, Hua ^{[1
,2
]}

Wei, Yonggang ^{[1
,2
]}

Li, Kongzhai ^{[1
,2
]}

机构：

[1] Kunming Univ Sci & Technol, State Key Lab Complex Nonferrous Met Resources Cl, Kunming 650093, Peoples R China

[2] Kunming Univ Sci & Technol, Fac Met & Energy Engn, Kunming 650093, Peoples R China

来源：

JOURNAL OF THE ENERGY INSTITUTE | 2016年 / 89卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Pr1-xZrxO2-delta complex oxides; Methane selective oxidation; Oxygen carrier; Synthesis gas; LATTICE OXYGEN; STORAGE CAPACITY; MIXED OXIDES; SYNGAS; CE; AIR;

D O I：

10.1016/j.joei.2015.04.002

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The Pr1-xZrxO2-delta complex oxides (x = 0, 0.1, 0.3, 0.5, 0.7, and 0.9) prepared by precipitation method were characterized by X-ray diffraction (XRD), H-2 temperature programmed reduction (H-2-TPR), O-2 temperature programmed desorption (O-2-TPD) and X-ray photoelectron spectroscopy (XPS) technologies. Chemical-looping selective oxidation of methane (CLSOM) process using a gas solid reaction between methane and Pr-Zr complex oxides was investigated at 850 degrees C for the synthesis gas generation. Pr-Zr-O solid solution could be formed by incorporation of Zr4+ to Pr6O11 at a large proportion range (0.1-0.9). Oxygen mobility and thermal stability of Pr-Zr samples was obviously enhanced by the formation of Pr-Zr-O solid solution. Pr-rich Pr-Zr oxygen carriers showed high selectivity towards CO and H-2 and high methane conversion. Synthesis gas with a suitable H-2/CO ratio of 2.0 could be obtained over those samples. Pr0.7Zr0.3O2-delta performed satisfactory performance for the successive generation of synthesis gas in CLSOM process. (C) 2015 Energy Institute. Published by Elsevier Ltd. All rights reserved.

引用

页码：745 / 754

页数：10

共 23 条

[1]

Baran E.J., 1990, Catalysis Today, V8, P133, DOI [10.1016/0920-5861(90)87015-U, DOI 10.1016/0920-5861(90)87015-U]

[2] Synthesis, structure and oxygen-storage capacity of Pr1-xZrxO2-δ and Pr1-x-yPdyZrxO2-δ [J].

Bellakki, Manjunath B. ;

Shivakumara, C. ;

Baidya, Tinku ;

Prakash, A. S. ;

Vasanthacharya, N. Y. ;

Hegde, M. S. .

MATERIALS RESEARCH BULLETIN, 2008, 43 (10) :2658-2667

[3] Partial oxidation of methane with air for methanol production in a post-plasma catalytic system [J].

Chen, Lin ;

Zhang, Xing-Wang ;

Huang, Liang ;

Lei, Le-Cheng .

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION, 2009, 48 (08) :1333-1340

[4] CO2 reforming of methane combined with steam reforming or partial oxidation of methane to syngas over NdCoO3 perovskite-type mixed metal-oxide catalyst [J].

Choudhary, Vasant R. ;

Mondal, Kartick C. .

APPLIED ENERGY, 2006, 83 (09) :1024-1032

[5] Unsteady-state direct partial oxidation of methane to synthesis gas in a fixed-bed reactor using AFeO3 (A = La, Nd, Eu) perovskite-type oxides as oxygen storage [J].

Dai, Xiao Ping ;

Li, Ran Jia ;

Yu, Chang Chun ;

Hao, Zheng Ping .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (45) :22525-22531

[6] RE0.6Zr0.4-xyxO2 (RE = Ce, Pr;: x=0, 0.05) solid solutions:: an investigation on defective structure, oxygen mobility, oxygen storage capacity, and redox properties [J].

He, H ;

Dai, HX ;

Wong, KW ;

Au, CT .

APPLIED CATALYSIS A-GENERAL, 2003, 251 (01) :61-74

[7]

Hugo A. L., 2014, J SOLID STATE, V218, P213

[8] Effect of high surface area CeO2 and Ce-ZrO2 supports over Ni catalyst on CH4 reforming with H2O in the presence of O2, H2, and CO2 [J].

Laosiripojana, N. ;

Chadwick, D. ;

Assabulnrungrat, S. .

CHEMICAL ENGINEERING JOURNAL, 2008, 138 (1-3) :264-273

[9]

Li K Z, 2011, J HYDROGEN ENERGY, V36, P3471

[10] Preparation and characterization of Ce1-xFexO2 complex oxides and its catalytic activity for methane selective oxidation [J].

Li Kongzhai ;

Wang Hua ;

Wei Yonggang ;

Liu Mingchun .

JOURNAL OF RARE EARTHS, 2008, 26 (02) :245-249

← 1 2 3 →