Methanol dehydration into dimethylether over ZSM-5 type zeolites: Raise in the operational temperature range

被引：57

作者：

Laugel, Guillaume ^{[1
]}

Nitsch, Xavier ^{[2
]}

Ocampo, Fabien ^{[3
]}

Louis, Benoit ^{[1
]}

机构：

[1] Univ Strasbourg, Lab Synth & React Organ, Inst Chim, UMR CNRS 7177, F-67000 Strasbourg, France

[2] CIRAD, Biomasse Energie UPR42, F-34398 Montpellier, France

[3] Univ Strasbourg, Lab Mat Surfaces & Proc Catalyse, UMR 7515, F-67087 Strasbourg 2, France

来源：

APPLIED CATALYSIS A-GENERAL | 2011年 / 402卷 / 1-2期

关键词：

Methanol dehydration; Dimethylether; ZSM-5; zeolite; Operational temperature range; TO-HYDROCARBONS REACTION; SOLID-ACID CATALYSTS; REACTION-MECHANISM; ETHER DME; ALTERNATIVE FUEL; H-MORDENITE; CO-REACTION; CONVERSION; BETA; HZSM-5;

D O I：

10.1016/j.apcata.2011.05.039

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：

Zeolites having different pore topologies were tested in the dehydration of methanol into dimethylether (DME) under inert and oxidative atmosphere. The experiments were carried out under air to inhibit the Methanol-To-Hydrocarbons (MTH) reaction, which tends to decrease the selectivity in DME. In addition, the presence of air led to broadening the operational temperature range (OTR) up to 400 degrees C, while maintaining the DME selectivity above 90% during 50 h on stream. Among the solid acid catalysts, the ZSM-5 zeolites exhibited the higher catalytic activity, with a degree of methanol conversion close to 75%. Furthermore, H-[F]ZSM-5 zeolite, prepared via a fluoride-mediated route, remains the more stable and selective toward DME at 400 degrees C. 2011 Elsevier B.V. All rights reserved.

引用

页码：139 / 145

页数：7

共 51 条

[1] The potential of di-methyl ether (DME) as an alternative fuel for compression-ignition engines: A review [J].

Arcoumanis, Constantine ;

Bae, Choongsik ;

Crookes, Roy ;

Kinoshita, Eiji .

FUEL, 2008, 87 (07) :1014-1030

[2] Influence of Catalytic Functionalities of Zeolites on Product Selectivities in Methanol Conversion [J].

Baek, Seung-Chan ;

Lee, Yun-Jo ;

Jun, Ki-Won ;

Hong, Suk Bong .

ENERGY & FUELS, 2009, 23 (1-2) :593-598

[3] KINETICS OF METHANOL DEHYDRATION ON DEALUMINATED H-MORDENITE - MODEL WITH ACID AND BASIC ACTIVE-CENTERS [J].

BANDIERA, J ;

NACCACHE, C .

APPLIED CATALYSIS, 1991, 69 (01) :139-148

[4] The methanol-to-hydrocarbons reaction:: insight into the reaction mechanism from [12C]benzene and [13C]methanol coreactions over zeolite H-beta [J].

Bjorgen, M ;

Olsbye, U ;

Petersen, D ;

Kolboe, S .

JOURNAL OF CATALYSIS, 2004, 221 (01) :1-10

[5] Coke precursor formation and zeolite deactivation: mechanistic insights from hexamethylbenzene conversion [J].

Bjorgen, M ;

Olsbye, U ;

Kolboe, S .

JOURNAL OF CATALYSIS, 2003, 215 (01) :30-44

[6] HYDROCARBONS FROM METHANOL [J].

CHANG, CD .

CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1983, 25 (01) :1-118

[7] CONVERSION OF METHANOL AND OTHER O-COMPOUNDS TO HYDROCARBONS OVER ZEOLITE CATALYSTS [J].

CHANG, CD ;

SILVESTRI, AJ .

JOURNAL OF CATALYSIS, 1977, 47 (02) :249-259

[8] ON THE REACTION-MECHANISM FOR PROPENE FORMATION IN THE MTO REACTION OVER SAPO-34 [J].

DAHL, IM ;

KOLBOE, S .

CATALYSIS LETTERS, 1993, 20 (3-4) :329-336

[9] On the reaction mechanism for hydrocarbon formation from methanol over SAPO-34 .2. Isotopic labeling studies of the co-reaction of propene and methanol [J].

Dahl, IM ;

Kolboe, S .

JOURNAL OF CATALYSIS, 1996, 161 (01) :304-309

[10] ON THE REACTION-MECHANISM FOR HYDROCARBON FORMATION FROM METHANOL OVER SAPO-34 .1. ISOTOPIC LABELING STUDIES OF THE CO-REACTION OF ETHENE AND METHANOL [J].

DAHL, IM ;

KOLBOE, S .

JOURNAL OF CATALYSIS, 1994, 149 (02) :458-464

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