Thiophene hydrodesulfurization over cobalt oxide loaded smectite clay minerals

Eiji Iwamatsu; Syed A. Ali; Mohammad E. Biswas; Shakeel Ahmed; Halim Hamid; Yuzo Sanada; Toshikazu Yoneda

Thiophene hydrodesulfurization over cobalt oxide loaded smectite clay minerals

Eiji Iwamatsu^*, Syed A. Ali, Mohammad E. Biswas, Shakeel Ahmed, Halim Hamid, Yuzo Sanada, Toshikazu Yoneda

^*Corresponding author for this work

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

4 Scopus citations

Abstract

Co oxide loaded smectite clay minerals catalysts showed high hydrodesulfurization (HDS) activity of thiophene used as a model compound. Among these catalysts, HDS activity of Co oxide loaded porous saponite was higher than CoMo/Al₂O₃ which is known to be a highly active catalyst for HDS. Further, HDS activity was increased by the calcination up to 600°C before Co oxide loading. MgO content was decreased and CoO content was increased with increasing calcination temperature up to 600°C before Co oxide loading. These catalysts were characterized by means of XRD and XPS. The correlation between the characteristics of catalysts and their activities were discussed. It can be concluded that (1) there are two types of Co oxide species : between the clay layers due to ion exchange with Na : and at the edge of the clay layer due to ion exchange with Mg, and (2) the latter type is highly active for thiophene HDS reaction.

Original language	English
Pages (from-to)	543-546
Number of pages	4
Journal	ACS Division of Fuel Chemistry, Preprints
Volume	43
Issue number	3
State	Published - 1998

Keywords

Clay
Cobalt
Hydrodesulfurization

ASJC Scopus subject areas

General Energy

Cite this

@article{89b3bda511db43d09e5f8ff1f2cfc297,

title = "Thiophene hydrodesulfurization over cobalt oxide loaded smectite clay minerals",

abstract = "Co oxide loaded smectite clay minerals catalysts showed high hydrodesulfurization (HDS) activity of thiophene used as a model compound. Among these catalysts, HDS activity of Co oxide loaded porous saponite was higher than CoMo/Al2O3 which is known to be a highly active catalyst for HDS. Further, HDS activity was increased by the calcination up to 600°C before Co oxide loading. MgO content was decreased and CoO content was increased with increasing calcination temperature up to 600°C before Co oxide loading. These catalysts were characterized by means of XRD and XPS. The correlation between the characteristics of catalysts and their activities were discussed. It can be concluded that (1) there are two types of Co oxide species : between the clay layers due to ion exchange with Na : and at the edge of the clay layer due to ion exchange with Mg, and (2) the latter type is highly active for thiophene HDS reaction.",

keywords = "Clay, Cobalt, Hydrodesulfurization",

author = "Eiji Iwamatsu and Ali, \{Syed A.\} and Biswas, \{Mohammad E.\} and Shakeel Ahmed and Halim Hamid and Yuzo Sanada and Toshikazu Yoneda",

year = "1998",

language = "English",

volume = "43",

pages = "543--546",

journal = "ACS Division of Fuel Chemistry, Preprints",

issn = "0569-3772",

number = "3",

}

TY - JOUR

T1 - Thiophene hydrodesulfurization over cobalt oxide loaded smectite clay minerals

AU - Iwamatsu, Eiji

AU - Ali, Syed A.

AU - Biswas, Mohammad E.

AU - Ahmed, Shakeel

AU - Hamid, Halim

AU - Sanada, Yuzo

AU - Yoneda, Toshikazu

PY - 1998

Y1 - 1998

N2 - Co oxide loaded smectite clay minerals catalysts showed high hydrodesulfurization (HDS) activity of thiophene used as a model compound. Among these catalysts, HDS activity of Co oxide loaded porous saponite was higher than CoMo/Al2O3 which is known to be a highly active catalyst for HDS. Further, HDS activity was increased by the calcination up to 600°C before Co oxide loading. MgO content was decreased and CoO content was increased with increasing calcination temperature up to 600°C before Co oxide loading. These catalysts were characterized by means of XRD and XPS. The correlation between the characteristics of catalysts and their activities were discussed. It can be concluded that (1) there are two types of Co oxide species : between the clay layers due to ion exchange with Na : and at the edge of the clay layer due to ion exchange with Mg, and (2) the latter type is highly active for thiophene HDS reaction.

AB - Co oxide loaded smectite clay minerals catalysts showed high hydrodesulfurization (HDS) activity of thiophene used as a model compound. Among these catalysts, HDS activity of Co oxide loaded porous saponite was higher than CoMo/Al2O3 which is known to be a highly active catalyst for HDS. Further, HDS activity was increased by the calcination up to 600°C before Co oxide loading. MgO content was decreased and CoO content was increased with increasing calcination temperature up to 600°C before Co oxide loading. These catalysts were characterized by means of XRD and XPS. The correlation between the characteristics of catalysts and their activities were discussed. It can be concluded that (1) there are two types of Co oxide species : between the clay layers due to ion exchange with Na : and at the edge of the clay layer due to ion exchange with Mg, and (2) the latter type is highly active for thiophene HDS reaction.

KW - Clay

KW - Cobalt

KW - Hydrodesulfurization

UR - https://www.scopus.com/pages/publications/3342954977

M3 - Article

AN - SCOPUS:3342954977

SN - 0569-3772

VL - 43

SP - 543

EP - 546

JO - ACS Division of Fuel Chemistry, Preprints

JF - ACS Division of Fuel Chemistry, Preprints

IS - 3

ER -

Thiophene hydrodesulfurization over cobalt oxide loaded smectite clay minerals

Abstract

Keywords

ASJC Scopus subject areas

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