Selective Catalytic Dehydration of 1,4-Butanediol to 3-Buten-1-ol over CeO2 with Different Morphology

He, Yongyi; Li, Qibiao; Wang, Yongzhao; Zhao, Yongxiang

doi:10.1016/s1872-2067(09)60075-9

Cited by 12 publications

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“…The gas-phase dehydration of 1,4-BDO into 3-buten-1-ol ( 80 ) was reported over various solid catalysts (Figure ). ,,− ,,,− Elaboration of more complex systems than those used for THF production is required to selectively form 3-buten-1-ol. Indeed, a combination of both acid and basic sites favors the reaction, as the H of 1,4-BDO in the 2-position interacts with basic sites, while acidic sites of the catalyst react with the terminal OH of 1,4-BDO (Scheme ).…”

Section: Upgrading Of Polyolsmentioning

confidence: 99%

Continuous Flow Upgrading of Selected C₂–C₆Platform Chemicals Derived from Biomass

et al. 2020

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The ever increasing industrial production of commodity and specialty chemicals inexorably depletes the finite primary fossil resources available on Earth. The forecast of population growth over the next 3 decades is a very strong incentive for the identification of alternative primary resources other than petro-based ones. In contrast with fossil resources, renewable biomass is a virtually inexhaustible reservoir of chemical building blocks. Shifting the current industrial paradigm from almost exclusively petro-based resources to alternative bio-based raw materials requires more than vibrant political messages; it requires a profound revision of the concepts and technologies on which industrial chemical processes rely. Only a small fraction of molecules extracted from biomass bears significant chemical and commercial potentials to be considered as ubiquitous chemical platforms upon which a new, bio-based industry can thrive. Owing to its inherent assets in terms of unique process experience, scalability, and reduced environmental footprint, flow chemistry arguably has a major role to play in this context. This review covers a selection of C2 to C6 bio-based chemical platforms with existing commercial markets including polyols (ethylene glycol, 1,2-propanediol, 1,3-propanediol, glycerol, 1,4-butanediol, xylitol, and sorbitol), furanoids (furfural and 5-hydroxymethylfurfural) and carboxylic acids (lactic acid, succinic acid, fumaric acid, malic acid, itaconic acid, and levulinic acid). The aim of this review is to illustrate the various aspects of upgrading bio-based platform molecules toward commodity or specialty chemicals using new process concepts that fall under the umbrella of continuous flow technology and that could change the future perspectives of biorefineries.

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Section: Upgrading Of Polyolsmentioning

confidence: 99%

Continuous Flow Upgrading of Selected C₂–C₆Platform Chemicals Derived from Biomass

et al. 2020

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“…BTO is a valuable intermediate due to the presence of a reactive double bond and hydroxyl group; it can be used in the synthesis of heterocyclic drugs such as multidrug resistant compounds, anti-HIV drugs, and antiproliferative agents [9][10][11][12]. Therefore, BDO catalytic selective dehydration to BTO has attracted increasing attention with regards to exploiting a high value-added downstream derivative of BDO [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

1,4-Butanediol Selective Dehydration to 3-Butene-1-ol over Ca–Zr–Sn Composite Oxide Catalysts

Dong

Yang

et al. 2022

Catalysts

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Ca–Zr–Sn composite oxides catalysts for 1,4-butanediol (BDO) selective dehydration to 3-butene-1-ol (BTO) are synthesized by impregnation and co-precipitation in the present work. The results show that Ca–Zr–Sn catalysts prepared from co-precipitation by using NaOH-Na2CO3 mixing alkali solution as precipitant exhibit an excellent catalytic property for BDO dehydration to BTO. For instance, Ca–Zr–Sn oxide with Ca/Zr and Sn/Zr molar ratio of 0.68 and 0.28 calcined at 650 °C gives a BDO conversion and BTO selectivity of about 97% and 82%, respectively, and exhibits no deactivation during 1000 h scale-up experimental testing. X-ray diffraction results indicate that catalytic active centers for BDO dehydration to BTO are from Ca0.15Zr0.85O crystal phase. NH3- and CO2-temperature programmed desorption prove that the surface of obtained catalysts can provide a large amount of acid and base sites simultaneously. FT-IR spectra of pyridine-adsorbed samples show that acid sites on the surface of Ca–Zr–Sn oxide catalyst mainly exist in a state of Lewis acid, which activates terminal -OH groups of BDO molecule through complexing. The activated -OH interacts with β-H activated on base sites O2− anions relative to Ca species, thereby the CH2=CH- bonds are produced through dehydration to form BTO.

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Dehydration of 1,5-pentanediol over rare earth oxides

Sato

Okazaki

Sato

2012

Applied Catalysis A: General

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Selective Catalytic Dehydration of 1,4-Butanediol to 3-Buten-1-ol over CeO2 with Different Morphology

Cited by 12 publications

References 14 publications

Continuous Flow Upgrading of Selected C₂–C₆Platform Chemicals Derived from Biomass

Continuous Flow Upgrading of Selected C₂–C₆Platform Chemicals Derived from Biomass

1,4-Butanediol Selective Dehydration to 3-Butene-1-ol over Ca–Zr–Sn Composite Oxide Catalysts

Dehydration of 1,5-pentanediol over rare earth oxides

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Selective Catalytic Dehydration of 1,4-Butanediol to 3-Buten-1-ol over CeO2 with Different Morphology

Cited by 12 publications

References 14 publications

Continuous Flow Upgrading of Selected C2–C6Platform Chemicals Derived from Biomass

Continuous Flow Upgrading of Selected C2–C6Platform Chemicals Derived from Biomass

1,4-Butanediol Selective Dehydration to 3-Butene-1-ol over Ca–Zr–Sn Composite Oxide Catalysts

Dehydration of 1,5-pentanediol over rare earth oxides

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Continuous Flow Upgrading of Selected C₂–C₆Platform Chemicals Derived from Biomass

Continuous Flow Upgrading of Selected C₂–C₆Platform Chemicals Derived from Biomass