Temperature-programmed desorption and reduction of sulfided alumina-pillared montmorillonite

Eiji Iwamatsu; Eiji Hayashi; Yuzo Sanada; Shakeel Ahmed; Syed Ahmed Ali; Augustin K.K. Lee; Halim Hamid; Toshikazu Yoneda

doi:10.1016/S0926-860X(98)00305-6

Temperature-programmed desorption and reduction of sulfided alumina-pillared montmorillonite

Eiji Iwamatsu, Eiji Hayashi, Yuzo Sanada, Shakeel Ahmed, Syed Ahmed Ali^*, Augustin K.K. Lee, Halim Hamid, Toshikazu Yoneda

^*Corresponding author for this work

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

11 Scopus citations

Abstract

As a part of our fundamental studies on the acid function of catalysts for hydrocracking, alumina-pillared montmorillonite catalysts were prepared and characterized by means of temperature-programmed desorption with NH₃ from sulfided catalysts (TPD-S) and temperature-programmed reduction of sulfided catalysts (TPR-S). The TPD-S and TPR-S characteristics of catalysts thus obtained have been compared with the activities of cumene cracking in a pulse-type micro reactor. Commercial hydrocracking catalysts were also characterized with similar methods and the performance of cumene cracking was tested. TPD, TPR profiles and cumene cracking activity changed after sulfiding of alumina-pillared montmorillonite. Both the chemical property changes by the heat treatment and the sulfur species adsorbed on the surface allow us to alter its acid property and cumene cracking activity as well.

Original language	English
Pages (from-to)	139-144
Number of pages	6
Journal	Applied Catalysis A: General
Volume	179
Issue number	1-2
DOIs	https://doi.org/10.1016/S0926-860X(98)00305-6
State	Published - 5 Apr 1999

Bibliographical note

Funding Information:
The authors wish to acknowledge the support of Petroleum Energy Center, Japan, with the subsidy of the Ministry of International Trade and Industry Japan, and the Research Institute of the King Fahd University of Petroleum and Minerals, for this work under KFUPM/RI Project no. 21151.

Keywords

Alumina-pillared montmorillonite
Sulfiding
Temperature-programmed desorption
Temperature-programmed reduction

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology

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10.1016/S0926-860X(98)00305-6

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title = "Temperature-programmed desorption and reduction of sulfided alumina-pillared montmorillonite",

abstract = "As a part of our fundamental studies on the acid function of catalysts for hydrocracking, alumina-pillared montmorillonite catalysts were prepared and characterized by means of temperature-programmed desorption with NH3 from sulfided catalysts (TPD-S) and temperature-programmed reduction of sulfided catalysts (TPR-S). The TPD-S and TPR-S characteristics of catalysts thus obtained have been compared with the activities of cumene cracking in a pulse-type micro reactor. Commercial hydrocracking catalysts were also characterized with similar methods and the performance of cumene cracking was tested. TPD, TPR profiles and cumene cracking activity changed after sulfiding of alumina-pillared montmorillonite. Both the chemical property changes by the heat treatment and the sulfur species adsorbed on the surface allow us to alter its acid property and cumene cracking activity as well.",

keywords = "Alumina-pillared montmorillonite, Sulfiding, Temperature-programmed desorption, Temperature-programmed reduction",

author = "Eiji Iwamatsu and Eiji Hayashi and Yuzo Sanada and Shakeel Ahmed and Ali, \{Syed Ahmed\} and Lee, \{Augustin K.K.\} and Halim Hamid and Toshikazu Yoneda",

note = "Funding Information: The authors wish to acknowledge the support of Petroleum Energy Center, Japan, with the subsidy of the Ministry of International Trade and Industry Japan, and the Research Institute of the King Fahd University of Petroleum and Minerals, for this work under KFUPM/RI Project no. 21151. ",

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doi = "10.1016/S0926-860X(98)00305-6",

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pages = "139--144",

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T1 - Temperature-programmed desorption and reduction of sulfided alumina-pillared montmorillonite

AU - Iwamatsu, Eiji

AU - Hayashi, Eiji

AU - Sanada, Yuzo

AU - Ahmed, Shakeel

AU - Ali, Syed Ahmed

AU - Lee, Augustin K.K.

AU - Hamid, Halim

AU - Yoneda, Toshikazu

N1 - Funding Information: The authors wish to acknowledge the support of Petroleum Energy Center, Japan, with the subsidy of the Ministry of International Trade and Industry Japan, and the Research Institute of the King Fahd University of Petroleum and Minerals, for this work under KFUPM/RI Project no. 21151.

PY - 1999/4/5

Y1 - 1999/4/5

N2 - As a part of our fundamental studies on the acid function of catalysts for hydrocracking, alumina-pillared montmorillonite catalysts were prepared and characterized by means of temperature-programmed desorption with NH3 from sulfided catalysts (TPD-S) and temperature-programmed reduction of sulfided catalysts (TPR-S). The TPD-S and TPR-S characteristics of catalysts thus obtained have been compared with the activities of cumene cracking in a pulse-type micro reactor. Commercial hydrocracking catalysts were also characterized with similar methods and the performance of cumene cracking was tested. TPD, TPR profiles and cumene cracking activity changed after sulfiding of alumina-pillared montmorillonite. Both the chemical property changes by the heat treatment and the sulfur species adsorbed on the surface allow us to alter its acid property and cumene cracking activity as well.

AB - As a part of our fundamental studies on the acid function of catalysts for hydrocracking, alumina-pillared montmorillonite catalysts were prepared and characterized by means of temperature-programmed desorption with NH3 from sulfided catalysts (TPD-S) and temperature-programmed reduction of sulfided catalysts (TPR-S). The TPD-S and TPR-S characteristics of catalysts thus obtained have been compared with the activities of cumene cracking in a pulse-type micro reactor. Commercial hydrocracking catalysts were also characterized with similar methods and the performance of cumene cracking was tested. TPD, TPR profiles and cumene cracking activity changed after sulfiding of alumina-pillared montmorillonite. Both the chemical property changes by the heat treatment and the sulfur species adsorbed on the surface allow us to alter its acid property and cumene cracking activity as well.

KW - Alumina-pillared montmorillonite

KW - Sulfiding

KW - Temperature-programmed desorption

KW - Temperature-programmed reduction

UR - https://www.scopus.com/pages/publications/0000789366

U2 - 10.1016/S0926-860X(98)00305-6

DO - 10.1016/S0926-860X(98)00305-6

M3 - Article

AN - SCOPUS:0000789366

SN - 0926-860X

VL - 179

SP - 139

EP - 144

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

IS - 1-2

ER -

Temperature-programmed desorption and reduction of sulfided alumina-pillared montmorillonite

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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