Preparation of supported nano-copper oxide and its sulfation kinetics

Qing Chun Yu; Shi Chao Zhang; Bin Yang; Da Chun Liu; Bao Qiang Xu; Wen Hui Ma

doi:10.1016/S1003-6326(10)60146-X

Preparation of supported nano-copper oxide and its sulfation kinetics

Qing Chun Yu^*
, Shi Chao Zhang
, Bin Yang
, Da Chun Liu
, Bao Qiang Xu
, Wen Hui Ma

^*Corresponding author for this work

School of Materials Science and Engineering

Kunming University of Science and Technology

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

CuO/γ-Al₂O₃ sorbents were prepared by means of impregnation. Thermogravimetric technique was used to study the sulfation of CuO/γ-Al₂O₃ sorbents. The sulfation tests were performed using gas containing 0.1-0.9 SO₂, 5 O₂, 3 H ₂O steam, and N₂ as the balance. Experimental conditions including temperature, SO₂ concentration and pore structure were studied. The sulfation experiment results show that the sulfation reaction rate increases with increasing temperature and SO₂ concentration, and the surface and pore volume decrease after sulfation. Sulfation kinetics analysis shows that the reaction between CuO/γ-Al₂O₃ and SO₂ obeys pore-blocking model well. Proportionality (pore-blocking constant) 1/λ decreases with increasing temperature. The activation energy and reaction order with respect to SO₂ obtained are 37.9 kJ/mol and the first order, respectively. The existing state of CuO exerts an influence on activation energy.

Original language	English
Pages (from-to)	s757-s761
Journal	Transactions of Nonferrous Metals Society of China (English Edition)
Volume	19
Issue number	SUPPL. 3
DOIs	https://doi.org/10.1016/S1003-6326(10)60146-X
State	Published - Dec 2009

Keywords

CuO
Flue gas desulfurization
Pore-blocking model
SO
Sulfation

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10.1016/S1003-6326(10)60146-X

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@article{913c06608c544b4eae852479a16a86f8,

title = "Preparation of supported nano-copper oxide and its sulfation kinetics",

abstract = "CuO/γ-Al2O3 sorbents were prepared by means of impregnation. Thermogravimetric technique was used to study the sulfation of CuO/γ-Al2O3 sorbents. The sulfation tests were performed using gas containing 0.1-0.9 SO2, 5 O2, 3 H 2O steam, and N2 as the balance. Experimental conditions including temperature, SO2 concentration and pore structure were studied. The sulfation experiment results show that the sulfation reaction rate increases with increasing temperature and SO2 concentration, and the surface and pore volume decrease after sulfation. Sulfation kinetics analysis shows that the reaction between CuO/γ-Al2O3 and SO2 obeys pore-blocking model well. Proportionality (pore-blocking constant) 1/λ decreases with increasing temperature. The activation energy and reaction order with respect to SO2 obtained are 37.9 kJ/mol and the first order, respectively. The existing state of CuO exerts an influence on activation energy.",

keywords = "CuO, Flue gas desulfurization, Pore-blocking model, SO, Sulfation",

author = "Yu, \{Qing Chun\} and Zhang, \{Shi Chao\} and Bin Yang and Liu, \{Da Chun\} and Xu, \{Bao Qiang\} and Ma, \{Wen Hui\}",

year = "2009",

month = dec,

doi = "10.1016/S1003-6326(10)60146-X",

language = "英语",

volume = "19",

pages = "s757--s761",

journal = "Transactions of Nonferrous Metals Society of China (English Edition)",

issn = "1003-6326",

publisher = "Nonferrous Metals Society of China",

number = "SUPPL. 3",

}

TY - JOUR

T1 - Preparation of supported nano-copper oxide and its sulfation kinetics

AU - Yu, Qing Chun

AU - Zhang, Shi Chao

AU - Yang, Bin

AU - Liu, Da Chun

AU - Xu, Bao Qiang

AU - Ma, Wen Hui

PY - 2009/12

Y1 - 2009/12

N2 - CuO/γ-Al2O3 sorbents were prepared by means of impregnation. Thermogravimetric technique was used to study the sulfation of CuO/γ-Al2O3 sorbents. The sulfation tests were performed using gas containing 0.1-0.9 SO2, 5 O2, 3 H 2O steam, and N2 as the balance. Experimental conditions including temperature, SO2 concentration and pore structure were studied. The sulfation experiment results show that the sulfation reaction rate increases with increasing temperature and SO2 concentration, and the surface and pore volume decrease after sulfation. Sulfation kinetics analysis shows that the reaction between CuO/γ-Al2O3 and SO2 obeys pore-blocking model well. Proportionality (pore-blocking constant) 1/λ decreases with increasing temperature. The activation energy and reaction order with respect to SO2 obtained are 37.9 kJ/mol and the first order, respectively. The existing state of CuO exerts an influence on activation energy.

AB - CuO/γ-Al2O3 sorbents were prepared by means of impregnation. Thermogravimetric technique was used to study the sulfation of CuO/γ-Al2O3 sorbents. The sulfation tests were performed using gas containing 0.1-0.9 SO2, 5 O2, 3 H 2O steam, and N2 as the balance. Experimental conditions including temperature, SO2 concentration and pore structure were studied. The sulfation experiment results show that the sulfation reaction rate increases with increasing temperature and SO2 concentration, and the surface and pore volume decrease after sulfation. Sulfation kinetics analysis shows that the reaction between CuO/γ-Al2O3 and SO2 obeys pore-blocking model well. Proportionality (pore-blocking constant) 1/λ decreases with increasing temperature. The activation energy and reaction order with respect to SO2 obtained are 37.9 kJ/mol and the first order, respectively. The existing state of CuO exerts an influence on activation energy.

KW - CuO

KW - Flue gas desulfurization

KW - Pore-blocking model

KW - SO

KW - Sulfation

UR - https://www.scopus.com/pages/publications/77955667898

U2 - 10.1016/S1003-6326(10)60146-X

DO - 10.1016/S1003-6326(10)60146-X

M3 - 文章

AN - SCOPUS:77955667898

SN - 1003-6326

VL - 19

SP - s757-s761

JO - Transactions of Nonferrous Metals Society of China (English Edition)

JF - Transactions of Nonferrous Metals Society of China (English Edition)

IS - SUPPL. 3

ER -

Preparation of supported nano-copper oxide and its sulfation kinetics

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Keywords

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