Metathesis of 2-butene to propylene over W-mesoporous molecular sieves: A comparative study between tungsten containing MCM-41 and SBA-15

Tazul Islam Bhuiyan; Palani Arudra; Muhammad Naseem Akhtar; Abdullah M. Aitani; Raed H. Abudawoud; Mohammed A. Al-Yami; Sulaiman S. Al-Khattaf

doi:10.1016/j.apcata.2013.07.034

Metathesis of 2-butene to propylene over W-mesoporous molecular sieves: A comparative study between tungsten containing MCM-41 and SBA-15

Tazul Islam Bhuiyan
, Palani Arudra
, Muhammad Naseem Akhtar
, Abdullah M. Aitani
, Raed H. Abudawoud
, Mohammed A. Al-Yami
, Sulaiman S. Al-Khattaf^*

^*Corresponding author for this work

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

84 Scopus citations

Abstract

Mesoporous silica (MCM-41 and SBA-15) having tungsten oxide in the framework was synthesized by hydrothermal crystallization process using CTAB and P123 as structure directing agents, respectively. Tungsten oxide was supported on the MCM-41 and SBA-15 by wet impregnation method for a comparative study. The synthesized materials were characterized by XRD, N₂ adsorption-desorption, NH₃-TPD, pyridine-FT-IR, UV-vis DRS and Raman spectroscopy techniques. The catalysts were used to perform metathesis reaction of 2-butene in a fixed-bed reactor at different temperatures and under atmospheric pressure. It was observed that catalysts having tungsten oxide in the framework of mesoporous silica exhibited higher activity as compared to tungsten oxide impregnated catalysts. The results revealed that WO ₃-MCM-41(30) catalyst has much higher activity at a low temperature (450 C) as compared to WO₃-SBA-15(30). At 550 C, WO ₃-MCM-41(30) and WO₃-SBA-15(30) showed comparable activity with highest propylene yield of 39 mol% and 37 mol%, respectively. The higher metathesis activity of WO₃-MCM-41 catalysts can be related to the well-dispersed active tetrahedral tungsten oxide species as evidenced from XRD, UV-vis DRS and Raman spectroscopy results.

Original language	English
Pages (from-to)	224-234
Number of pages	11
Journal	Applied Catalysis A: General
Volume	467
DOIs	https://doi.org/10.1016/j.apcata.2013.07.034
State	Published - 2013

Bibliographical note

Funding Information:
The authors would like to acknowledge the support provided by Saudi Aramco for funding project# CRP02252. The support from the Ministry of Higher Education, Saudi Arabia, in establishment of the Center of Research Excellence in Petroleum Refining & Petrochemicals at King Fahd University of Petroleum & Minerals (KFUPM) is appreciated. The support of KFUPM is also highly appreciated.

Keywords

MCM-41
Mesoporous silica
Metathesis
Propylene
SBA-15 2-Butene
Tungsten oxide

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology

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10.1016/j.apcata.2013.07.034

Cite this

@article{3bab772f8de2493c895e8fa4c8bd3df9,

title = "Metathesis of 2-butene to propylene over W-mesoporous molecular sieves: A comparative study between tungsten containing MCM-41 and SBA-15",

abstract = "Mesoporous silica (MCM-41 and SBA-15) having tungsten oxide in the framework was synthesized by hydrothermal crystallization process using CTAB and P123 as structure directing agents, respectively. Tungsten oxide was supported on the MCM-41 and SBA-15 by wet impregnation method for a comparative study. The synthesized materials were characterized by XRD, N2 adsorption-desorption, NH3-TPD, pyridine-FT-IR, UV-vis DRS and Raman spectroscopy techniques. The catalysts were used to perform metathesis reaction of 2-butene in a fixed-bed reactor at different temperatures and under atmospheric pressure. It was observed that catalysts having tungsten oxide in the framework of mesoporous silica exhibited higher activity as compared to tungsten oxide impregnated catalysts. The results revealed that WO 3-MCM-41(30) catalyst has much higher activity at a low temperature (450 C) as compared to WO3-SBA-15(30). At 550 C, WO 3-MCM-41(30) and WO3-SBA-15(30) showed comparable activity with highest propylene yield of 39 mol\% and 37 mol\%, respectively. The higher metathesis activity of WO3-MCM-41 catalysts can be related to the well-dispersed active tetrahedral tungsten oxide species as evidenced from XRD, UV-vis DRS and Raman spectroscopy results.",

keywords = "MCM-41, Mesoporous silica, Metathesis, Propylene, SBA-15 2-Butene, Tungsten oxide",

author = "Bhuiyan, \{Tazul Islam\} and Palani Arudra and Akhtar, \{Muhammad Naseem\} and Aitani, \{Abdullah M.\} and Abudawoud, \{Raed H.\} and Al-Yami, \{Mohammed A.\} and Al-Khattaf, \{Sulaiman S.\}",

note = "Funding Information: The authors would like to acknowledge the support provided by Saudi Aramco for funding project\# CRP02252. The support from the Ministry of Higher Education, Saudi Arabia, in establishment of the Center of Research Excellence in Petroleum Refining \& Petrochemicals at King Fahd University of Petroleum \& Minerals (KFUPM) is appreciated. The support of KFUPM is also highly appreciated. ",

year = "2013",

doi = "10.1016/j.apcata.2013.07.034",

language = "English",

volume = "467",

pages = "224--234",

journal = "Applied Catalysis A: General",

issn = "0926-860X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Metathesis of 2-butene to propylene over W-mesoporous molecular sieves

T2 - A comparative study between tungsten containing MCM-41 and SBA-15

AU - Bhuiyan, Tazul Islam

AU - Arudra, Palani

AU - Akhtar, Muhammad Naseem

AU - Aitani, Abdullah M.

AU - Abudawoud, Raed H.

AU - Al-Yami, Mohammed A.

AU - Al-Khattaf, Sulaiman S.

N1 - Funding Information: The authors would like to acknowledge the support provided by Saudi Aramco for funding project# CRP02252. The support from the Ministry of Higher Education, Saudi Arabia, in establishment of the Center of Research Excellence in Petroleum Refining & Petrochemicals at King Fahd University of Petroleum & Minerals (KFUPM) is appreciated. The support of KFUPM is also highly appreciated.

PY - 2013

Y1 - 2013

N2 - Mesoporous silica (MCM-41 and SBA-15) having tungsten oxide in the framework was synthesized by hydrothermal crystallization process using CTAB and P123 as structure directing agents, respectively. Tungsten oxide was supported on the MCM-41 and SBA-15 by wet impregnation method for a comparative study. The synthesized materials were characterized by XRD, N2 adsorption-desorption, NH3-TPD, pyridine-FT-IR, UV-vis DRS and Raman spectroscopy techniques. The catalysts were used to perform metathesis reaction of 2-butene in a fixed-bed reactor at different temperatures and under atmospheric pressure. It was observed that catalysts having tungsten oxide in the framework of mesoporous silica exhibited higher activity as compared to tungsten oxide impregnated catalysts. The results revealed that WO 3-MCM-41(30) catalyst has much higher activity at a low temperature (450 C) as compared to WO3-SBA-15(30). At 550 C, WO 3-MCM-41(30) and WO3-SBA-15(30) showed comparable activity with highest propylene yield of 39 mol% and 37 mol%, respectively. The higher metathesis activity of WO3-MCM-41 catalysts can be related to the well-dispersed active tetrahedral tungsten oxide species as evidenced from XRD, UV-vis DRS and Raman spectroscopy results.

AB - Mesoporous silica (MCM-41 and SBA-15) having tungsten oxide in the framework was synthesized by hydrothermal crystallization process using CTAB and P123 as structure directing agents, respectively. Tungsten oxide was supported on the MCM-41 and SBA-15 by wet impregnation method for a comparative study. The synthesized materials were characterized by XRD, N2 adsorption-desorption, NH3-TPD, pyridine-FT-IR, UV-vis DRS and Raman spectroscopy techniques. The catalysts were used to perform metathesis reaction of 2-butene in a fixed-bed reactor at different temperatures and under atmospheric pressure. It was observed that catalysts having tungsten oxide in the framework of mesoporous silica exhibited higher activity as compared to tungsten oxide impregnated catalysts. The results revealed that WO 3-MCM-41(30) catalyst has much higher activity at a low temperature (450 C) as compared to WO3-SBA-15(30). At 550 C, WO 3-MCM-41(30) and WO3-SBA-15(30) showed comparable activity with highest propylene yield of 39 mol% and 37 mol%, respectively. The higher metathesis activity of WO3-MCM-41 catalysts can be related to the well-dispersed active tetrahedral tungsten oxide species as evidenced from XRD, UV-vis DRS and Raman spectroscopy results.

KW - MCM-41

KW - Mesoporous silica

KW - Metathesis

KW - Propylene

KW - SBA-15 2-Butene

KW - Tungsten oxide

UR - https://www.scopus.com/pages/publications/84881502494

U2 - 10.1016/j.apcata.2013.07.034

DO - 10.1016/j.apcata.2013.07.034

M3 - Article

AN - SCOPUS:84881502494

SN - 0926-860X

VL - 467

SP - 224

EP - 234

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

ER -

Metathesis of 2-butene to propylene over W-mesoporous molecular sieves: A comparative study between tungsten containing MCM-41 and SBA-15

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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