The Effect of Zeolite Structure on the Activity and Selectivity in p-Xylene Alkylation with Isopropyl Alcohol

被引：9

作者：

Musilova-Pavlackova, Zuzana ^{[1
]}

Kubu, Martin ^{[1
]}

Burton, Allen W. ^{[2
]}

Zones, Stacey I. ^{[2
]}

Bejblova, Martina ^{[1
]}

Cejka, Jiri ^{[1
]}

机构：

[1] Acad Sci Czech Republic, J Heyrovsky Inst Phys Chem, VVI, CR-18223 Prague 8, Czech Republic

[2] Chevron Energy & Technol Co, Richmond, CA 94802 USA

来源：

CATALYSIS LETTERS | 2009年 / 131卷 / 3-4期

关键词：

SSZ-35; SSZ-33; p-Xylene; Alkylation; 2,5-Dimethyl cumene (1-isopropyl-2,5-dimethyl-benzene); MOLECULAR-DYNAMICS; CONSTRAINT INDEX; FORCE-FIELD; TOLUENE; SSZ-33; ZSM-5; ACID; DISPROPORTIONATION; ISOMERIZATION; CATALYSIS;

D O I：

10.1007/s10562-009-0039-3

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The effect of zeolite architecture and channel dimensionality on p-xylene conversion and selectivity to 1-isopropyl-2,5-dimethyl-benzene was investigated in p-xylene alkylation with isopropyl alcohol over novel zeolites SSZ-33 and SSZ-35. Catalytic behavior of these zeolites was compared with those of zeolites Beta, mordenite, ZSM-11 and ZSM-5. It was found that p-xylene conversion increases with increasing pore size and connectivity of the channel system of individual zeolites with the exception of SSZ-35, which possesses a system of one-dimensional 10-ring channels that periodically open into wide, shallow cavities circumscribed by 18-rings. SSZ-35 exhibited the highest conversion among all zeolites at the reaction temperature of 150 degrees C and also the highest selectivity to 1-isopropyl-2,5-dimethyl-benzene. Molecular modeling confirmed the dimensions of the 18-ring cages are optimal for the formation of this alkylation product.

引用

页码：393 / 400

页数：8

共 50 条

[31] Ultraselective cycloaddition of dimethylfuran for renewable p-xylene with H-BEA zeolite
Fan, Wei
Chang, Chun-Chih
Dauenhauer, Paul
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2014, 248
[32] STUDIES ON MECHANISM OF SELECTIVE ADSORPTION OF P-XYLENE ON MODIFIED FORMS OF ZEOLITE NAY
MILEWSKI, M
KONTNIKMATECKA, B
EYSYMONTT, J
PRZEMYSL CHEMICZNY, 1979, 58 (06): : 302 - 303
[33] Methyl rotational tunneling dynamics of p-xylene confined in a crystalline zeolite host
Nair, S
Dimeo, RM
Neumann, DA
Horsewill, AJ
Tsapatsis, M
JOURNAL OF CHEMICAL PHYSICS, 2004, 121 (10): : 4810 - 4819
[34] THE EFFECT OF THE REACTOR TYPE ON THE SELECTIVITY OF THERMAL-REACTIONS OF P-XYLENE IN TEMPERATURE-GRADIENT SYSTEMS
KAWAKAMI, S
IWAKI, S
NAKADA, M
YAMAGUCHI, T
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1991, 64 (03) : 1000 - 1004
[35] Alkylation of toluene with isopropyl alcohol catalyzed by Ce-exchanged NaX zeolite
Barman, S
Maity, SK
Pradhan, NC
CHEMICAL ENGINEERING JOURNAL, 2005, 114 (1-3) : 39 - 45
[36] EFFECT OF PRESSURE ON THE SOLUBILITIES OF ORTHO-XYLENE, META-XYLENE AND P-XYLENE IN WATER
SAWAMURA, S
SUZUKI, K
TANIGUCHI, Y
JOURNAL OF SOLUTION CHEMISTRY, 1987, 16 (08) : 649 - 657
[37] Facile synthesis of hypercrosslinked resin via photochlorination of p-xylene and succedent alkylation polymerization
Ling Ling Bai
ChineseChemicalLetters, 2011, 22 (09) : 1115 - 1118
[38] Facile synthesis of hypercrosslinked resin via photochlorination of p-xylene and succedent alkylation polymerization
Bai, Ling Ling
Zhou, Yong Hao
Wang, Xiu Li
Yuan, Si Guo
Wu, Xian Li
CHINESE CHEMICAL LETTERS, 2011, 22 (09) : 1115 - 1118
[39] The roles of acidity and structure of zeolite for catalyzing toluene alkylation with methanol to xylene
Zhu, ZR
Chen, QL
Xie, ZK
Yang, WM
Li, C
MICROPOROUS AND MESOPOROUS MATERIALS, 2006, 88 (1-3) : 16 - 21
[40] SELECTIVE ALKYLATION OF P-XYLENE WITH 2-METHYLPROPENE BY 12-TUNGSTOPHOSPHORIC ACID
SOEDA, H
OKUHARA, T
MISONO, M
CHEMISTRY LETTERS, 1994, (05) : 909 - 912

← 1 2 3 4 5 →