Evaluation of crystalline structure and SO2 removal capacity of a series of MgAlFeCu mixed oxides as sulfur transfer catalysts

Wen Ping Cheng; Jian Guo Yang; Ming Yuan He

doi:10.1016/j.catcom.2008.11.038

Evaluation of crystalline structure and SO₂ removal capacity of a series of MgAlFeCu mixed oxides as sulfur transfer catalysts

Wen Ping Cheng
, Jian Guo Yang^*
, Ming Yuan He

^*Corresponding author for this work

School of Chemistry and Molecular Engineering

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

18 Scopus citations

Abstract

A series of MgAlFeCu mixed oxides with different Mg/Al atomic ratios derived from hydrotalcite-like compounds were prepared and tested for SO₂ removal under the conditions similar to those of FCC units. The crystalline structures, the surface areas and the chemical compositions of the catalysts were investigated through the XRF, XRD, and N₂ adsorption analysis. And spinel, spinel and Mg(Al)O, or Mg(Al)O was produced by changing the Mg/Al atomic ratios. The results of SO₂ adsorption-reduction tests showed that the activities of the catalysts were strongly affected by the Mg/Al atomic ratio, structure and surface area. The sulfur transfer catalyst LDO6 (Mg/Al = 6) showed the excellent SO₂ oxidative adsorption and reductive capacity, its total amounts of adsorbed SO₂ reached 1.62 g SO₂/g Cat, which was also remained at constant after eight cycles.

Original language	English
Pages (from-to)	784-787
Number of pages	4
Journal	Catalysis Communications
Volume	10
Issue number	6
DOIs	https://doi.org/10.1016/j.catcom.2008.11.038
State	Published - 15 Feb 2009

Keywords

Hydrotalcite-like compounds
MgAlFeCu mixed oxides
Oxidative adsorption
Sulfur transfer catalyst

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10.1016/j.catcom.2008.11.038

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title = "Evaluation of crystalline structure and SO2 removal capacity of a series of MgAlFeCu mixed oxides as sulfur transfer catalysts",

abstract = "A series of MgAlFeCu mixed oxides with different Mg/Al atomic ratios derived from hydrotalcite-like compounds were prepared and tested for SO2 removal under the conditions similar to those of FCC units. The crystalline structures, the surface areas and the chemical compositions of the catalysts were investigated through the XRF, XRD, and N2 adsorption analysis. And spinel, spinel and Mg(Al)O, or Mg(Al)O was produced by changing the Mg/Al atomic ratios. The results of SO2 adsorption-reduction tests showed that the activities of the catalysts were strongly affected by the Mg/Al atomic ratio, structure and surface area. The sulfur transfer catalyst LDO6 (Mg/Al = 6) showed the excellent SO2 oxidative adsorption and reductive capacity, its total amounts of adsorbed SO2 reached 1.62 g SO2/g Cat, which was also remained at constant after eight cycles.",

keywords = "Hydrotalcite-like compounds, MgAlFeCu mixed oxides, Oxidative adsorption, Sulfur transfer catalyst",

author = "Cheng, \{Wen Ping\} and Yang, \{Jian Guo\} and He, \{Ming Yuan\}",

year = "2009",

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doi = "10.1016/j.catcom.2008.11.038",

language = "英语",

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pages = "784--787",

journal = "Catalysis Communications",

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}

TY - JOUR

T1 - Evaluation of crystalline structure and SO2 removal capacity of a series of MgAlFeCu mixed oxides as sulfur transfer catalysts

AU - Cheng, Wen Ping

AU - Yang, Jian Guo

AU - He, Ming Yuan

PY - 2009/2/15

Y1 - 2009/2/15

N2 - A series of MgAlFeCu mixed oxides with different Mg/Al atomic ratios derived from hydrotalcite-like compounds were prepared and tested for SO2 removal under the conditions similar to those of FCC units. The crystalline structures, the surface areas and the chemical compositions of the catalysts were investigated through the XRF, XRD, and N2 adsorption analysis. And spinel, spinel and Mg(Al)O, or Mg(Al)O was produced by changing the Mg/Al atomic ratios. The results of SO2 adsorption-reduction tests showed that the activities of the catalysts were strongly affected by the Mg/Al atomic ratio, structure and surface area. The sulfur transfer catalyst LDO6 (Mg/Al = 6) showed the excellent SO2 oxidative adsorption and reductive capacity, its total amounts of adsorbed SO2 reached 1.62 g SO2/g Cat, which was also remained at constant after eight cycles.

AB - A series of MgAlFeCu mixed oxides with different Mg/Al atomic ratios derived from hydrotalcite-like compounds were prepared and tested for SO2 removal under the conditions similar to those of FCC units. The crystalline structures, the surface areas and the chemical compositions of the catalysts were investigated through the XRF, XRD, and N2 adsorption analysis. And spinel, spinel and Mg(Al)O, or Mg(Al)O was produced by changing the Mg/Al atomic ratios. The results of SO2 adsorption-reduction tests showed that the activities of the catalysts were strongly affected by the Mg/Al atomic ratio, structure and surface area. The sulfur transfer catalyst LDO6 (Mg/Al = 6) showed the excellent SO2 oxidative adsorption and reductive capacity, its total amounts of adsorbed SO2 reached 1.62 g SO2/g Cat, which was also remained at constant after eight cycles.

KW - Hydrotalcite-like compounds

KW - MgAlFeCu mixed oxides

KW - Oxidative adsorption

KW - Sulfur transfer catalyst

UR - https://www.scopus.com/pages/publications/58949101267

U2 - 10.1016/j.catcom.2008.11.038

DO - 10.1016/j.catcom.2008.11.038

M3 - 文章

AN - SCOPUS:58949101267

SN - 1566-7367

VL - 10

SP - 784

EP - 787

JO - Catalysis Communications

JF - Catalysis Communications

IS - 6

ER -

Evaluation of crystalline structure and SO₂ removal capacity of a series of MgAlFeCu mixed oxides as sulfur transfer catalysts

Abstract

Keywords

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