Unexpected selectivity of ferrierite for the conversion of isobutanol to linear butenes and water effects

Buniazet, Z.; Cabiac, Amandine; Maury, S.; Bianchi, Daniel; Loridant, S.

doi:10.1016/j.apcatb.2018.11.007

Cited by 15 publications

(30 citation statements)

References 55 publications

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“…This study explores the direct conversion of isobutanol into n-butenes on Ferrierite, a cascade reaction where isobutanol dehydration is followed by the skeletal isomerization of the primary products, at low temperature (< 573 K) to alleviate the deactivation. [11,17,18] We focus in particular on the fine-tuning of the acidic and textural properties of Ferrierite and use IR operando spectroscopy to gain more insight into the global reaction mechanism. Due to the complex nature of such IR spectra, spectral interpretations are assisted by chemometric tools to provide relevant information on the surface species, including those leading to deactivation.…”

Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

“…Among the zeolites, Ferrierite (FER28) displays an excellent activity and the highest n-butenes selectivity (81.4 % at 50 % conversion), confirming earlier results. [17] It is worth noticing that such a ranking seems paradoxical as the FER-type zeolite is well-known to efficiently catalyze the skeletal isomerization of n-butene to iso-butene. [33] Table S1 (SI) compares the experimental distribution of butene isomers with their thermodynamic equilibrium and shows that the experimental ratio of linear butenes to isobutene (4.89) is much larger than at thermodynamic equilibrium (0.70).…”

Section: Preliminary Catalyst Screeningmentioning

confidence: 99%

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A highly selective FER-based catalyst to produce n-butenes from isobutanol

Daele

Minoux

Nesterenko

et al. 2021

Applied Catalysis B: Environmental

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Section: J O U R N a L P R E -P R O O Fmentioning

confidence: 99%

Section: Preliminary Catalyst Screeningmentioning

confidence: 99%

A highly selective FER-based catalyst to produce n-butenes from isobutanol

Daele

Minoux

Nesterenko

et al. 2021

Applied Catalysis B: Environmental

View full text Add to dashboard Cite

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“…Zeolites of ferrierite type are more selective with respect to linear n-butenes (Table 1, nos. 8, 9) [94,95].…”

Section: Promising Catalytic Processes For Isobutanol Transformationmentioning

confidence: 99%

“…Maury et al [94,95] assume that the isobutanol dehydration on ferrierite-type zeolite occurs with the formation of isobutyl carbenium ions on Brønsted acid sites (Fig. 4).…”

Section: Promising Catalytic Processes For Isobutanol Transformationmentioning

confidence: 99%

“…These Brønsted acid sites (probably located at the entrance into zeolite pores) are not susceptible to the action of water and soft coke formed, which at increased contact time and long time of catalyst operation leads to high selectivity with respect to linear butenes. It is also assumed in [94] that the formation of water inhibits the proton shift in the isobutyl carbenium ion or deprotonation of acid sites favoring isobutene formation. However, the presence of water does not inhibit acid sites on which isomerization of isobutyl carbenium ions into linear carbocations occurs, which leads to the formation of linear butenes.…”

Section: Promising Catalytic Processes For Isobutanol Transformationmentioning

confidence: 99%

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Bioisobutanol as a Promising Feedstock for Production of “Green” Hydrocarbons and Petrochemicals (A Review)

et al. 2021

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The existing approaches to bioisobutanol synthesis and commercial production are considered. Ways of using bioisobutanol as a component of motor fuel and as a promising feedstock for the production of “green” hydrocarbons and other petrochemicals that favor the progress of low-carbon economy are discussed. Particular attention is paid to catalytic processes of isobutanol conversion to isobutylene and butenes, aromatic hydrocarbons, C2–С4 olefins, and hydrogen-containing gases. Data on the mechanism of isobutanol transformations on zeolite catalysts are given.

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Influence of Acid‐Base Characteristics of Different Structural‐Type Zeolites (FER, MFI, FAU, BEA) on Their Activity and Selectivity in Isobutanol Dehydration

Zikrata,

Larina,

Balakin

et al. 2024

ChemCatChem

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The different structural‐type zeolites (FER, MFI, FAU, BEA) are investigated as catalysts in (bio)isobutanol conversion into linear butenes. The zeolites’ structure and morphology are confirmed by XRD, N2 (77 K) ad(de)sorption, SEM, EDX, XPS, and 27Al, 29Si, 1H MAS NMR, 1H‐29Si CP MAS NMR. The nature and strength of acid‐base sites are determined by FTIR spectroscopy of adsorbed pyridine, potentiometric titration, and TPD of NH3/CO2/H2O with MS control. The acid‐base properties of the zeolites' surfaces influence their catalytic properties in the target process. The higher selectivity towards linear butene isomers achieved over FER and MFI can be explained by the high strength and density of Brønsted acid sites (over 90% of the total surface acidity). MFI might be regarded as a potential material for the creation of novel catalysts for isobutanol conversion into linear butenes at moderate temperatures (448‐473 K) since it offers greater operating stability throughout the process.

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Unexpected selectivity of ferrierite for the conversion of isobutanol to linear butenes and water effects

Cited by 15 publications

References 55 publications

A highly selective FER-based catalyst to produce n-butenes from isobutanol

A highly selective FER-based catalyst to produce n-butenes from isobutanol

Bioisobutanol as a Promising Feedstock for Production of “Green” Hydrocarbons and Petrochemicals (A Review)

Influence of Acid‐Base Characteristics of Different Structural‐Type Zeolites (FER, MFI, FAU, BEA) on Their Activity and Selectivity in Isobutanol Dehydration

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