Comparison of mesoporous solid acid catalysts in the production of DABCO by cyclization of ethanolamine II. Synthesis of DABCO over mesoporous solid acid catalysts

Manickam Selvaraj; Byoung Ryul Min; Yong Gun Shul; Tai Gyu Lee

doi:10.1016/j.micromeso.2004.06.015

Comparison of mesoporous solid acid catalysts in the production of DABCO by cyclization of ethanolamine II. Synthesis of DABCO over mesoporous solid acid catalysts

Manickam Selvaraj, Byoung Ryul Min, Yong Gun Shul, Tai Gyu Lee

Department of Chemical and Biomolecular Engineering

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

31 Citations (Scopus)

Abstract

DABCO have been synthesized under vapor phase reaction conditions using ethanolamine in the presence of water over synthesized and characterized Zn-Al-MCM-41 and Al-MCM-41 as catalysts. On increasing the Si/(Zn + Al) ratios of Zn-Al-MCM-41 and Si/Al ratios of Al-MCM-41 catalysts from 75 to 380 and 21 to 104 respectively, the yield and selectivity of DABCO decreased. This may be due to the number of Bronsted acid sites in Zh-Al-MCM-41 and Al-MCM-41 are found to decrease almost linearly with increasing ratios of Si/(Zn + Al) and Si/Al, respectively. Both the Zn-Al-MCM-41 and Al-MCM-41 possesses stronger affinity with ethanolamine and water, but only the conversion of ethanolamine, yield and selectivity of DABCO decreased in recyclable Al-MCM-41. This may be due to decreasing the catalytic activity on the surface of catalysts. In the context, the Si/(Zn + Al) ratio of 75 is found to be more suitable for the cyclization of ethanolamine to highly selective synthesis of DABCO. Thus the yield of DABCO is higher in Zn-Al-MCM-41(75) than that in other Zn-Al-MCM-41 and Al-MCM-41 catalysts.

Original language	English
Pages (from-to)	157-162
Number of pages	6
Journal	Microporous and Mesoporous Materials
Volume	74
Issue number	1-3
DOIs	https://doi.org/10.1016/j.micromeso.2004.06.015
Publication status	Published - 2004 Sept 20

Bibliographical note

Funding Information:
The authors gratefully acknowledge the Korea Research Foundation for sponsoring this work (KRF-2003-005-D00002).

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanics of Materials

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10.1016/j.micromeso.2004.06.015

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title = "Comparison of mesoporous solid acid catalysts in the production of DABCO by cyclization of ethanolamine II. Synthesis of DABCO over mesoporous solid acid catalysts",

abstract = "DABCO have been synthesized under vapor phase reaction conditions using ethanolamine in the presence of water over synthesized and characterized Zn-Al-MCM-41 and Al-MCM-41 as catalysts. On increasing the Si/(Zn + Al) ratios of Zn-Al-MCM-41 and Si/Al ratios of Al-MCM-41 catalysts from 75 to 380 and 21 to 104 respectively, the yield and selectivity of DABCO decreased. This may be due to the number of Bronsted acid sites in Zh-Al-MCM-41 and Al-MCM-41 are found to decrease almost linearly with increasing ratios of Si/(Zn + Al) and Si/Al, respectively. Both the Zn-Al-MCM-41 and Al-MCM-41 possesses stronger affinity with ethanolamine and water, but only the conversion of ethanolamine, yield and selectivity of DABCO decreased in recyclable Al-MCM-41. This may be due to decreasing the catalytic activity on the surface of catalysts. In the context, the Si/(Zn + Al) ratio of 75 is found to be more suitable for the cyclization of ethanolamine to highly selective synthesis of DABCO. Thus the yield of DABCO is higher in Zn-Al-MCM-41(75) than that in other Zn-Al-MCM-41 and Al-MCM-41 catalysts.",

author = "Manickam Selvaraj and Min, {Byoung Ryul} and Shul, {Yong Gun} and Lee, {Tai Gyu}",

note = "Funding Information: The authors gratefully acknowledge the Korea Research Foundation for sponsoring this work (KRF-2003-005-D00002).",

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doi = "10.1016/j.micromeso.2004.06.015",

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Comparison of mesoporous solid acid catalysts in the production of DABCO by cyclization of ethanolamine II. Synthesis of DABCO over mesoporous solid acid catalysts. / Selvaraj, Manickam; Min, Byoung Ryul ; Shul, Yong Gun et al.

In: Microporous and Mesoporous Materials, Vol. 74, No. 1-3, 20.09.2004, p. 157-162.

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

TY - JOUR

T1 - Comparison of mesoporous solid acid catalysts in the production of DABCO by cyclization of ethanolamine II. Synthesis of DABCO over mesoporous solid acid catalysts

AU - Selvaraj, Manickam

AU - Min, Byoung Ryul

AU - Shul, Yong Gun

AU - Lee, Tai Gyu

N1 - Funding Information: The authors gratefully acknowledge the Korea Research Foundation for sponsoring this work (KRF-2003-005-D00002).

PY - 2004/9/20

Y1 - 2004/9/20

N2 - DABCO have been synthesized under vapor phase reaction conditions using ethanolamine in the presence of water over synthesized and characterized Zn-Al-MCM-41 and Al-MCM-41 as catalysts. On increasing the Si/(Zn + Al) ratios of Zn-Al-MCM-41 and Si/Al ratios of Al-MCM-41 catalysts from 75 to 380 and 21 to 104 respectively, the yield and selectivity of DABCO decreased. This may be due to the number of Bronsted acid sites in Zh-Al-MCM-41 and Al-MCM-41 are found to decrease almost linearly with increasing ratios of Si/(Zn + Al) and Si/Al, respectively. Both the Zn-Al-MCM-41 and Al-MCM-41 possesses stronger affinity with ethanolamine and water, but only the conversion of ethanolamine, yield and selectivity of DABCO decreased in recyclable Al-MCM-41. This may be due to decreasing the catalytic activity on the surface of catalysts. In the context, the Si/(Zn + Al) ratio of 75 is found to be more suitable for the cyclization of ethanolamine to highly selective synthesis of DABCO. Thus the yield of DABCO is higher in Zn-Al-MCM-41(75) than that in other Zn-Al-MCM-41 and Al-MCM-41 catalysts.

AB - DABCO have been synthesized under vapor phase reaction conditions using ethanolamine in the presence of water over synthesized and characterized Zn-Al-MCM-41 and Al-MCM-41 as catalysts. On increasing the Si/(Zn + Al) ratios of Zn-Al-MCM-41 and Si/Al ratios of Al-MCM-41 catalysts from 75 to 380 and 21 to 104 respectively, the yield and selectivity of DABCO decreased. This may be due to the number of Bronsted acid sites in Zh-Al-MCM-41 and Al-MCM-41 are found to decrease almost linearly with increasing ratios of Si/(Zn + Al) and Si/Al, respectively. Both the Zn-Al-MCM-41 and Al-MCM-41 possesses stronger affinity with ethanolamine and water, but only the conversion of ethanolamine, yield and selectivity of DABCO decreased in recyclable Al-MCM-41. This may be due to decreasing the catalytic activity on the surface of catalysts. In the context, the Si/(Zn + Al) ratio of 75 is found to be more suitable for the cyclization of ethanolamine to highly selective synthesis of DABCO. Thus the yield of DABCO is higher in Zn-Al-MCM-41(75) than that in other Zn-Al-MCM-41 and Al-MCM-41 catalysts.

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Comparison of mesoporous solid acid catalysts in the production of DABCO by cyclization of ethanolamine II. Synthesis of DABCO over mesoporous solid acid catalysts

Abstract

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