Gas Phase Synthesis of MTBE from Methanol and Isobutene over Dealuminated Zeolites

Collignon, François; Mariani, Matteo; Moreno, Sonia; Remy, M.; Poncelet, Georges

doi:10.1006/jcat.1997.1503

Cited by 80 publications

(32 citation statements)

References 51 publications

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“…This makes it possible to measure the intrinsical reaction kinetics of the etherification. The apparent activation energy measured is in accordance with the results found by Collignon et al [23] in the etherification of methanol and iso-butene over zeolite BEA. They measured apparent activation energies between 94 and 158 kJ/mol, depending on the SiO 2 :Al 2 O 3 ratio of the zeolite BEA used.…”

Section: Effect Of the Temperaturesupporting

confidence: 81%

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Kinetics of solid acid catalysed etherification of symmetrical primary alcohols: zeolite BEA catalysed etherification of 1-octanol

Hoek

Nijhuis

Stankiewicz

et al. 2004

Applied Catalysis A: General

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The etherification of 1-octanol catalysed by zeolite BEA was investigated. The kinetics were determined in an open system with almost no water present. The influence of the catalyst particle size, catalyst concentration, temperature, and alcohol concentration was investigated. The apparent activation energy measured for the etherification was 149.8 kJ/mol. The 1-octanol showed an inhibiting effect on the reaction rate, i.e. when the concentration of 1-octanol increased the initial reaction rate decreased. This effect can be explained by a Langmuir-Hinshelwood like mechanism in which an adsorbed alcohol needs an empty neighbouring site to form an active intermediate and split of water. The influence of water on the kinetics was investigated using a closed autoclave set-up. Water showed a strong inhibiting effect on the initial reaction rate of the etherification of 1-octanol.

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Section: Effect Of the Temperaturesupporting

confidence: 81%

“…In the synthesis of methyl-tert butyl ether (MTBE) from methanol and iso-butene zeolite BEA showed a comparable activity to the current commercial ion-exchange resin Amberlyst-15 [21][22][23]. Other zeolite catalysts (i.e.…”

Section: Introductionmentioning

confidence: 95%

Kinetics of solid acid catalysed etherification of symmetrical primary alcohols: zeolite BEA catalysed etherification of 1-octanol

Hoek

Nijhuis

Stankiewicz

et al. 2004

Applied Catalysis A: General

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show abstract

“…The main advantage of the zeolite catalysts is their well-known better thermal stability compared with ion-exchange resins. Improved ether selectivities have been reported with zeolites but the activities have remained at a lower level than with the resins [94,95]. Improved ether selectivities have been reported with zeolites but the activities have remained at a lower level than with the resins [94,95].…”

Section: Zeolites and Modified Zeolitesmentioning

confidence: 93%

Etherification

Krause

Keskinen

2008

Handbook of Heterogeneous Catalysis

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The sections in this article are Scope Introduction and History of Tertiary Ethers Chemistry Main Etherification Reactions Most Important Side Reactions Thermodynamics of Ether Reactions Kinetic Models Other Ethers Heavier Ethers C 8 Alkenes Higher Alcohols Polyfunctional Ethers Catalysts Acidic Ion‐Exchange Resins Zeolites and Modified Zeolites Other Acidic Catalysts Catalyst Deactivation Raw Materials and Products Typical Raw Materials Feed Stream Treatment Ether Products Hydrocarbon Products Processes Operating Conditions Processes for MTBE Production Conventional MTBE Units Reactive Distillation in MTBE Production Processes for ETBE Production Conversion of MTBE Plants for ETBE Production Processes for TAME Production Multipurpose Processes for Production of Ethers Diesel Ethers Dimethyl Ether Properties of Dimethyl Ether Processes for Dimethyl Ether Production Di‐ n ‐Pentyl Ether The Future

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“…At 90°C the conversion degree of methanol and isobutene decreased slightly to 38% whereas the MTBE selectivity reached 98%. The MTBE yield of 37% reached by cloverite is remarkably high, but does not meet the higher values of about 50% of the commercial Amberlyst-15 catalysts or of zeolite beta [30,31]. However, compared to other zeolite types (HY, ZSM-5, ZSM-12 [32], mordenite, omega) cloverite shows a distinctly higher MTBE yield.…”

Section: Application Of Cloveritementioning

confidence: 94%

Crystallization, stability and possible application of the molecular sieve cloverite

Fricke¹,

Zubowa²,

Richter³

et al. 2005

Comptes Rendus. Chimie

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Gas Phase Synthesis of MTBE from Methanol and Isobutene over Dealuminated Zeolites

Cited by 80 publications

References 51 publications

Kinetics of solid acid catalysed etherification of symmetrical primary alcohols: zeolite BEA catalysed etherification of 1-octanol

Kinetics of solid acid catalysed etherification of symmetrical primary alcohols: zeolite BEA catalysed etherification of 1-octanol

Etherification

Crystallization, stability and possible application of the molecular sieve cloverite

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