Shape selective methylation of 4-methylbiphenyl with methanol over MgO/HZSM5

Xinwen Guo, Jian Ping Shen, Lu Sun, Chunshan Song, Xiangsheng Wang

Research output: Contribution to journalConference article

Abstract

The effects of catalyst activation and the reaction conditions on the methylation of 4-methylbiphenyl (4-MBP) with methanol over MgO/CBV8020 were investigated. With an increase in the reaction temperature, the conversion of 4-MBP decreased and the selectivity to 4,4′-dimethylbiphenyl (4,4′-DMBP) first increased, then decreased. With an increase in the reaction temperature, the isomerization of 4-MBP into 3-MBP increased, as well as the isomerization of 4,4′-DMBP into 2,3′- and 3,4′-DMBP. The effect of reaction time on the methylation of 4-MBP with methanol showed that both the conversion of 4-MBP and the selectivity to 4,4′-DMBP decreased with reaction time. Moreover, the addition of water in the feed did not favor methylation of 4-MBP with methanol. With an increase in the amount of mesitylene, both the selectivity to 4,4′-DMBP and 4-MBP conversion increased a little. However, the activity stability improved a lot, after 375 min reaction, the selectivity to 4,4′-DMBP was ∼ 80%, and 4-MBP conversion was ∼ 8%.

Original languageEnglish (US)
Pages (from-to)902-903
Number of pages2
JournalACS Division of Fuel Chemistry, Preprints
Volume48
Issue number2
StatePublished - Sep 1 2003

Fingerprint

Methylation
Methanol
Isomerization
Chemical activation
Temperature
Catalysts
Water

All Science Journal Classification (ASJC) codes

  • Energy(all)

Cite this

Guo, Xinwen ; Shen, Jian Ping ; Sun, Lu ; Song, Chunshan ; Wang, Xiangsheng. / Shape selective methylation of 4-methylbiphenyl with methanol over MgO/HZSM5. In: ACS Division of Fuel Chemistry, Preprints. 2003 ; Vol. 48, No. 2. pp. 902-903.
@article{2379e27e40e14ef4a99faba7e9a8f100,
title = "Shape selective methylation of 4-methylbiphenyl with methanol over MgO/HZSM5",
abstract = "The effects of catalyst activation and the reaction conditions on the methylation of 4-methylbiphenyl (4-MBP) with methanol over MgO/CBV8020 were investigated. With an increase in the reaction temperature, the conversion of 4-MBP decreased and the selectivity to 4,4′-dimethylbiphenyl (4,4′-DMBP) first increased, then decreased. With an increase in the reaction temperature, the isomerization of 4-MBP into 3-MBP increased, as well as the isomerization of 4,4′-DMBP into 2,3′- and 3,4′-DMBP. The effect of reaction time on the methylation of 4-MBP with methanol showed that both the conversion of 4-MBP and the selectivity to 4,4′-DMBP decreased with reaction time. Moreover, the addition of water in the feed did not favor methylation of 4-MBP with methanol. With an increase in the amount of mesitylene, both the selectivity to 4,4′-DMBP and 4-MBP conversion increased a little. However, the activity stability improved a lot, after 375 min reaction, the selectivity to 4,4′-DMBP was ∼ 80{\%}, and 4-MBP conversion was ∼ 8{\%}.",
author = "Xinwen Guo and Shen, {Jian Ping} and Lu Sun and Chunshan Song and Xiangsheng Wang",
year = "2003",
month = "9",
day = "1",
language = "English (US)",
volume = "48",
pages = "902--903",
journal = "Am Chem Soc Div Fuel Chem Prepr",
issn = "0569-3772",
number = "2",

}

Shape selective methylation of 4-methylbiphenyl with methanol over MgO/HZSM5. / Guo, Xinwen; Shen, Jian Ping; Sun, Lu; Song, Chunshan; Wang, Xiangsheng.

In: ACS Division of Fuel Chemistry, Preprints, Vol. 48, No. 2, 01.09.2003, p. 902-903.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Shape selective methylation of 4-methylbiphenyl with methanol over MgO/HZSM5

AU - Guo, Xinwen

AU - Shen, Jian Ping

AU - Sun, Lu

AU - Song, Chunshan

AU - Wang, Xiangsheng

PY - 2003/9/1

Y1 - 2003/9/1

N2 - The effects of catalyst activation and the reaction conditions on the methylation of 4-methylbiphenyl (4-MBP) with methanol over MgO/CBV8020 were investigated. With an increase in the reaction temperature, the conversion of 4-MBP decreased and the selectivity to 4,4′-dimethylbiphenyl (4,4′-DMBP) first increased, then decreased. With an increase in the reaction temperature, the isomerization of 4-MBP into 3-MBP increased, as well as the isomerization of 4,4′-DMBP into 2,3′- and 3,4′-DMBP. The effect of reaction time on the methylation of 4-MBP with methanol showed that both the conversion of 4-MBP and the selectivity to 4,4′-DMBP decreased with reaction time. Moreover, the addition of water in the feed did not favor methylation of 4-MBP with methanol. With an increase in the amount of mesitylene, both the selectivity to 4,4′-DMBP and 4-MBP conversion increased a little. However, the activity stability improved a lot, after 375 min reaction, the selectivity to 4,4′-DMBP was ∼ 80%, and 4-MBP conversion was ∼ 8%.

AB - The effects of catalyst activation and the reaction conditions on the methylation of 4-methylbiphenyl (4-MBP) with methanol over MgO/CBV8020 were investigated. With an increase in the reaction temperature, the conversion of 4-MBP decreased and the selectivity to 4,4′-dimethylbiphenyl (4,4′-DMBP) first increased, then decreased. With an increase in the reaction temperature, the isomerization of 4-MBP into 3-MBP increased, as well as the isomerization of 4,4′-DMBP into 2,3′- and 3,4′-DMBP. The effect of reaction time on the methylation of 4-MBP with methanol showed that both the conversion of 4-MBP and the selectivity to 4,4′-DMBP decreased with reaction time. Moreover, the addition of water in the feed did not favor methylation of 4-MBP with methanol. With an increase in the amount of mesitylene, both the selectivity to 4,4′-DMBP and 4-MBP conversion increased a little. However, the activity stability improved a lot, after 375 min reaction, the selectivity to 4,4′-DMBP was ∼ 80%, and 4-MBP conversion was ∼ 8%.

UR - http://www.scopus.com/inward/record.url?scp=1042289954&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1042289954&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:1042289954

VL - 48

SP - 902

EP - 903

JO - Am Chem Soc Div Fuel Chem Prepr

JF - Am Chem Soc Div Fuel Chem Prepr

SN - 0569-3772

IS - 2

ER -