Enhanced Performance of Zn-Sn/HZSM-5 Catalyst for the Conversion of Methanol to Aromatics

被引：78

作者：

Xin, Yubing ^{[1
]}

Qi, Puyu ^{[1
]}

Duan, Xinping ^{[1
]}

Lin, Haiqiang ^{[1
]}

Yuan, Youzhu ^{[1
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, State Key Lab Phys Chem Solid Surfaces, Natl Engn Lab Green Chem Prod Alcohols Ethers Est, Xiamen 361005, Peoples R China

来源：

CATALYSIS LETTERS | 2013年 / 143卷 / 08期

关键词：

HZSM-5; Zn; Sn; Methanol to aromatics; Coke; ZSM-5; CATALYSTS; MTG PROCESS; AROMATIZATION; ZEOLITES; COKING; DEHYDROGENATION; ISOMERIZATION; DEACTIVATION; RANGE; MESOPOROSITY;

D O I：

10.1007/s10562-013-1031-5

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 conversion of methanol to aromatics such as benzene, toluene, and xylenes (BTX) was performed over HZSM-5-supported bimetallic Zn-Sn catalysts. The results indicated that Sn species preferentially healed the defects in HZ crystals to create new active sites. The catalyst with Zn species markedly enhanced the aromatization performance but easily produced heavy coke. Thus, an optimized catalyst with 1 wt% Zn and 1 wt% Sn exhibited improved catalytic performance in terms of selectivity and BTX yield compared with a catalyst with a single metal. Consequently, the BTX yield was 64.1 % under the reaction conditions of 0.1 MPa and 0.8 h(-1) methanol weight hourly space velocity at 450 A degrees C.

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页码：798 / 806

页数：9

相关论文

共 49 条

[1] Catalyst deactivation by coking in the MTG process in fixed and fluidized bed reactors [J].

Aguayo, AT ;

Gayubo, AG ;

Ortega, JM ;

Olazar, M ;

Bilbao, J .

CATALYSIS TODAY, 1997, 37 (03) :239-248

[2] Structure and Reactivity of Zn-Modified ZSM-5 Zeolites: The Importance of Clustered Cationic Zn Complexes [J].

Almutairi, Sami M. T. ;

Mezari, Brahim ;

Magusin, Pieter C. M. M. ;

Pidko, Evgeny A. ;

Hensen, Emiel J. M. .

ACS CATALYSIS, 2012, 2 (01) :71-83

[3] Role of internal coke for deactivation of ZSM-5 catalysts after low temperature removal of coke with NO2 [J].

Barbera, Katia ;

Sorensen, Soren ;

Bordiga, Silvia ;

Skibsted, Jorgen ;

Fordsmand, Henrik ;

Beato, Pablo ;

Janssens, Ton V. W. .

CATALYSIS SCIENCE & TECHNOLOGY, 2012, 2 (06) :1196-1206

[4] Structure-deactivation relationship for ZSM-5 catalysts governed by framework defects [J].

Barbera, Katia ;

Bonino, Francesca ;

Bordiga, Silvia ;

Janssens, Ton V. W. ;

Beato, Pablo .

JOURNAL OF CATALYSIS, 2011, 280 (02) :196-205

[5] Aromatization of methanol and methylation of benzene over Mo2C/ZSM-5 catalysts [J].

Barthos, Robert ;

Bansagi, Tamas ;

Zakar, Timea Suli ;

Solymosi, Frigyes .

JOURNAL OF CATALYSIS, 2007, 247 (02) :368-378

[6] Structure and density of active Zn species in Zn/H-ZSM5 propane aromatization catalysts [J].

Biscardi, JA ;

Meitzner, GD ;

Iglesia, E .

JOURNAL OF CATALYSIS, 1998, 179 (01) :192-202

[7] The mechanisms of ethene and propene formation from methanol over high silica H-ZSM-5 and H-beta [J].

Bjorgen, Morten ;

Joensen, Finn ;

Lillerud, Karl-Petter ;

Olsbye, Unni ;

Svelle, Stian .

CATALYSIS TODAY, 2009, 142 (1-2) :90-97

[8] Conversion of methanol over 10-ring zeolites with differing volumes at channel intersections: comparison of TNU-9, IM-5, ZSM-11 and ZSM-5 [J].

Bleken, Francesca ;

Skistad, Wegard ;

Barbera, Katia ;

Kustova, Marina ;

Bordiga, Silvia ;

Beato, Pablo ;

Lillerud, Karl Petter ;

Svelle, Stian ;

Olsbye, Unni .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2011, 13 (07) :2539-2549

[9] Metastable fcc α-MoC1-x supported on HZSM5:: preparation and catalytic performance for the non-oxidative conversion of methane to aromatic compounds [J].

Bouchy, C ;

Schmidt, I ;

Anderson, JR ;

Jacobsen, CJH ;

Derouane, EG ;

Hamid, SBDA .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2000, 163 (1-2) :283-296

[10] Synthesis, characterization, and catalytic properties of mesoporous tin-containing analogs of MCM-41 [J].

Chaudhari, K ;

Das, TK ;

Rajmohanan, PR ;

Lazar, K ;

Sivasanker, S ;

Chandwadkar, AJ .

JOURNAL OF CATALYSIS, 1999, 183 (02) :281-291

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