In situ FT-IR spectroscopic studies of sulfur effect on Mo2C/Al2O3 catalyst

Weicheng Wu; Zili Wu; Can Li

In situ FT-IR spectroscopic studies of sulfur effect on Mo₂C/Al₂O₃ catalyst

Weicheng Wu, Zili Wu, Can Li

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

The surface nature of fresh Mo₂C/Al₂O₃ catalyst pretreated by thiophene/H₂ was characterized using in situ IR spectroscopy. CO was employed to probe the sulfur effect of the catalyst surface. CO adsorbed on a fresh Mo₂C/Al₂O₃ sample gave two characteristic IR bands 2055 and 2197/cm. When the fresh Mo₂C/Al₂O₃ catalyst was treated with a thiophene/H₂ IR bands in the region 2870-2980/cm were produced. When the treatment temperature was increased to 673 K, some alkene species were formed. Thiophene could be easily hydrodesulfurized in the presence of H₂ on fresh Mo₂C/Al₂O₃ catalyst at ≥ 473 K, at the expense of the sulfidation of the carbide catalyst.

Original language	English
Pages (from-to)	187-188
Number of pages	2
Journal	ACS Division of Fuel Chemistry, Preprints
Volume	48
Issue number	1
State	Published - Mar 2003
Externally published	Yes
Event	Proceedings of the 2003 SPE/EPA/DOE Exploration Production Environmental Conference - San Antonio, TX, United States Duration: Mar 10 2003 → Mar 12 2003

Cite this

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title = "In situ FT-IR spectroscopic studies of sulfur effect on Mo2C/Al2O3 catalyst",

abstract = "The surface nature of fresh Mo2C/Al2O3 catalyst pretreated by thiophene/H2 was characterized using in situ IR spectroscopy. CO was employed to probe the sulfur effect of the catalyst surface. CO adsorbed on a fresh Mo2C/Al2O3 sample gave two characteristic IR bands 2055 and 2197/cm. When the fresh Mo2C/Al2O3 catalyst was treated with a thiophene/H2 IR bands in the region 2870-2980/cm were produced. When the treatment temperature was increased to 673 K, some alkene species were formed. Thiophene could be easily hydrodesulfurized in the presence of H2 on fresh Mo2C/Al2O3 catalyst at ≥ 473 K, at the expense of the sulfidation of the carbide catalyst.",

author = "Weicheng Wu and Zili Wu and Can Li",

year = "2003",

month = mar,

language = "English",

volume = "48",

pages = "187--188",

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

issn = "0569-3772",

number = "1",

note = "Proceedings of the 2003 SPE/EPA/DOE Exploration Production Environmental Conference ; Conference date: 10-03-2003 Through 12-03-2003",

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TY - JOUR

T1 - In situ FT-IR spectroscopic studies of sulfur effect on Mo2C/Al2O3 catalyst

AU - Wu, Weicheng

AU - Wu, Zili

AU - Li, Can

PY - 2003/3

Y1 - 2003/3

N2 - The surface nature of fresh Mo2C/Al2O3 catalyst pretreated by thiophene/H2 was characterized using in situ IR spectroscopy. CO was employed to probe the sulfur effect of the catalyst surface. CO adsorbed on a fresh Mo2C/Al2O3 sample gave two characteristic IR bands 2055 and 2197/cm. When the fresh Mo2C/Al2O3 catalyst was treated with a thiophene/H2 IR bands in the region 2870-2980/cm were produced. When the treatment temperature was increased to 673 K, some alkene species were formed. Thiophene could be easily hydrodesulfurized in the presence of H2 on fresh Mo2C/Al2O3 catalyst at ≥ 473 K, at the expense of the sulfidation of the carbide catalyst.

AB - The surface nature of fresh Mo2C/Al2O3 catalyst pretreated by thiophene/H2 was characterized using in situ IR spectroscopy. CO was employed to probe the sulfur effect of the catalyst surface. CO adsorbed on a fresh Mo2C/Al2O3 sample gave two characteristic IR bands 2055 and 2197/cm. When the fresh Mo2C/Al2O3 catalyst was treated with a thiophene/H2 IR bands in the region 2870-2980/cm were produced. When the treatment temperature was increased to 673 K, some alkene species were formed. Thiophene could be easily hydrodesulfurized in the presence of H2 on fresh Mo2C/Al2O3 catalyst at ≥ 473 K, at the expense of the sulfidation of the carbide catalyst.

UR - http://www.scopus.com/inward/record.url?scp=0344121894&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0344121894

SN - 0569-3772

VL - 48

SP - 187

EP - 188

JO - ACS Division of Fuel Chemistry, Preprints

JF - ACS Division of Fuel Chemistry, Preprints

IS - 1

T2 - Proceedings of the 2003 SPE/EPA/DOE Exploration Production Environmental Conference

Y2 - 10 March 2003 through 12 March 2003

ER -

In situ FT-IR spectroscopic studies of sulfur effect on Mo₂C/Al₂O₃ catalyst

Abstract

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