Shape selectivity of MWW-type aluminosilicate zeolites in the alkylation of toluene with methanol

Satoshi Inagaki; Kohei Kamino; Eiichi Kikuchi; Masahiko Matsukata

doi:10.1016/j.apcata.2006.10.036

Shape selectivity of MWW-type aluminosilicate zeolites in the alkylation of toluene with methanol

Satoshi Inagaki^*, Kohei Kamino, Eiichi Kikuchi, Masahiko Matsukata

^*Corresponding author for this work

School of Advanced Science and Engineering

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

60 Citations (Scopus)

Abstract

We investigated the alkylation of toluene with methanol at 250 °C over MCM-22 and ITQ-2 zeolites possessing an MWW structure. Whereas ITQ-2, produced by the delamination of MCM-22 precursor, showed a poor p-xylene selectivity of 23% at 1.7% of the level of toluene conversion, a high p-xylene selectivity of 80% at 0.6% of the level of toluene conversion was obtained by poisoning the external surface of ITQ-2 with collidine. Similarly, MCM-22 treated with collidine showed a high p-xylene selectivity of 74% at 3.8% of the level of toluene conversion. We concluded that both interlayer and intralayer 10-membered ring (10MR) micropores in the MWW structure caused the shape-selective formation of p-xylene in the alkylation of toluene with methanol.

Original language	English
Pages (from-to)	22-27
Number of pages	6
Journal	Applied Catalysis A: General
Volume	318
DOIs	https://doi.org/10.1016/j.apcata.2006.10.036
Publication status	Published - 2007 Feb 20

Keywords

Alkylation of toluene with methanol
Collidine
ITQ-2 zeolite
MCM-22 zeolite
Shape selectivity

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology

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10.1016/j.apcata.2006.10.036

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title = "Shape selectivity of MWW-type aluminosilicate zeolites in the alkylation of toluene with methanol",

abstract = "We investigated the alkylation of toluene with methanol at 250 °C over MCM-22 and ITQ-2 zeolites possessing an MWW structure. Whereas ITQ-2, produced by the delamination of MCM-22 precursor, showed a poor p-xylene selectivity of 23% at 1.7% of the level of toluene conversion, a high p-xylene selectivity of 80% at 0.6% of the level of toluene conversion was obtained by poisoning the external surface of ITQ-2 with collidine. Similarly, MCM-22 treated with collidine showed a high p-xylene selectivity of 74% at 3.8% of the level of toluene conversion. We concluded that both interlayer and intralayer 10-membered ring (10MR) micropores in the MWW structure caused the shape-selective formation of p-xylene in the alkylation of toluene with methanol.",

keywords = "Alkylation of toluene with methanol, Collidine, ITQ-2 zeolite, MCM-22 zeolite, Shape selectivity",

author = "Satoshi Inagaki and Kohei Kamino and Eiichi Kikuchi and Masahiko Matsukata",

year = "2007",

month = feb,

day = "20",

doi = "10.1016/j.apcata.2006.10.036",

language = "English",

volume = "318",

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journal = "Applied Catalysis A: General",

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TY - JOUR

T1 - Shape selectivity of MWW-type aluminosilicate zeolites in the alkylation of toluene with methanol

AU - Inagaki, Satoshi

AU - Kamino, Kohei

AU - Kikuchi, Eiichi

AU - Matsukata, Masahiko

PY - 2007/2/20

Y1 - 2007/2/20

N2 - We investigated the alkylation of toluene with methanol at 250 °C over MCM-22 and ITQ-2 zeolites possessing an MWW structure. Whereas ITQ-2, produced by the delamination of MCM-22 precursor, showed a poor p-xylene selectivity of 23% at 1.7% of the level of toluene conversion, a high p-xylene selectivity of 80% at 0.6% of the level of toluene conversion was obtained by poisoning the external surface of ITQ-2 with collidine. Similarly, MCM-22 treated with collidine showed a high p-xylene selectivity of 74% at 3.8% of the level of toluene conversion. We concluded that both interlayer and intralayer 10-membered ring (10MR) micropores in the MWW structure caused the shape-selective formation of p-xylene in the alkylation of toluene with methanol.

AB - We investigated the alkylation of toluene with methanol at 250 °C over MCM-22 and ITQ-2 zeolites possessing an MWW structure. Whereas ITQ-2, produced by the delamination of MCM-22 precursor, showed a poor p-xylene selectivity of 23% at 1.7% of the level of toluene conversion, a high p-xylene selectivity of 80% at 0.6% of the level of toluene conversion was obtained by poisoning the external surface of ITQ-2 with collidine. Similarly, MCM-22 treated with collidine showed a high p-xylene selectivity of 74% at 3.8% of the level of toluene conversion. We concluded that both interlayer and intralayer 10-membered ring (10MR) micropores in the MWW structure caused the shape-selective formation of p-xylene in the alkylation of toluene with methanol.

KW - Alkylation of toluene with methanol

KW - Collidine

KW - ITQ-2 zeolite

KW - MCM-22 zeolite

KW - Shape selectivity

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DO - 10.1016/j.apcata.2006.10.036

M3 - Article

AN - SCOPUS:33846078412

SN - 0926-860X

VL - 318

SP - 22

EP - 27

JO - Applied Catalysis A: General

JF - Applied Catalysis A: General

ER -

Shape selectivity of MWW-type aluminosilicate zeolites in the alkylation of toluene with methanol

Abstract

Keywords

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