Effect of phosphorus modification and hydrothermal treatment of zeolites on shape-selective methylation of 4-methylbiphenyl

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

Research output: Contribution to journalConference article

Abstract

Shape-selective methylation of 4-methylbiphenyl (4-MBP) with methanol over different HZSM-5 modified with organic and inorganic P, together with hydrothermal treatment, was studied. Through P modification and hydrothermal treatment, the selectivity to 4,4′-dimethylbiphenyl could be effectively increased. However, the activity could only stabilize for about 4-6 hr. TPP-CBV(4.1) and AHP-CBV(1.7) displayed similar activity and selectivity even though considerably different amounts were used. This was ascribed to the different location of the P compounds on the HZSM-5 zeolite. Due to its larger size, TPP was mainly located on the external surface of ZSM-5 even with higher P content. In the case of AHP, it could easily enter the internal surface in addition to the particle external surface.

Original languageEnglish (US)
Pages (from-to)131-133
Number of pages3
JournalACS Division of Petroleum Chemistry, Inc. Preprints
Volume47
Issue number2
StatePublished - Mar 1 2002
EventACS National Meeting - Orlando, FL, United States
Duration: Apr 7 2002Apr 11 2002

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Methylation
Zeolites
Phosphorus
Methanol

All Science Journal Classification (ASJC) codes

  • Fuel Technology

Cite this

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title = "Effect of phosphorus modification and hydrothermal treatment of zeolites on shape-selective methylation of 4-methylbiphenyl",
abstract = "Shape-selective methylation of 4-methylbiphenyl (4-MBP) with methanol over different HZSM-5 modified with organic and inorganic P, together with hydrothermal treatment, was studied. Through P modification and hydrothermal treatment, the selectivity to 4,4′-dimethylbiphenyl could be effectively increased. However, the activity could only stabilize for about 4-6 hr. TPP-CBV(4.1) and AHP-CBV(1.7) displayed similar activity and selectivity even though considerably different amounts were used. This was ascribed to the different location of the P compounds on the HZSM-5 zeolite. Due to its larger size, TPP was mainly located on the external surface of ZSM-5 even with higher P content. In the case of AHP, it could easily enter the internal surface in addition to the particle external surface.",
author = "Xinwen Guo and Shen, {Jian Ping} and Lu Sun and Chunshan Song",
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Effect of phosphorus modification and hydrothermal treatment of zeolites on shape-selective methylation of 4-methylbiphenyl. / Guo, Xinwen; Shen, Jian Ping; Sun, Lu; Song, Chunshan.

In: ACS Division of Petroleum Chemistry, Inc. Preprints, Vol. 47, No. 2, 01.03.2002, p. 131-133.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Effect of phosphorus modification and hydrothermal treatment of zeolites on shape-selective methylation of 4-methylbiphenyl

AU - Guo, Xinwen

AU - Shen, Jian Ping

AU - Sun, Lu

AU - Song, Chunshan

PY - 2002/3/1

Y1 - 2002/3/1

N2 - Shape-selective methylation of 4-methylbiphenyl (4-MBP) with methanol over different HZSM-5 modified with organic and inorganic P, together with hydrothermal treatment, was studied. Through P modification and hydrothermal treatment, the selectivity to 4,4′-dimethylbiphenyl could be effectively increased. However, the activity could only stabilize for about 4-6 hr. TPP-CBV(4.1) and AHP-CBV(1.7) displayed similar activity and selectivity even though considerably different amounts were used. This was ascribed to the different location of the P compounds on the HZSM-5 zeolite. Due to its larger size, TPP was mainly located on the external surface of ZSM-5 even with higher P content. In the case of AHP, it could easily enter the internal surface in addition to the particle external surface.

AB - Shape-selective methylation of 4-methylbiphenyl (4-MBP) with methanol over different HZSM-5 modified with organic and inorganic P, together with hydrothermal treatment, was studied. Through P modification and hydrothermal treatment, the selectivity to 4,4′-dimethylbiphenyl could be effectively increased. However, the activity could only stabilize for about 4-6 hr. TPP-CBV(4.1) and AHP-CBV(1.7) displayed similar activity and selectivity even though considerably different amounts were used. This was ascribed to the different location of the P compounds on the HZSM-5 zeolite. Due to its larger size, TPP was mainly located on the external surface of ZSM-5 even with higher P content. In the case of AHP, it could easily enter the internal surface in addition to the particle external surface.

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