Selective hydrogenation of cyclopentadiene in mono- and bimetallic catalytic hollow-fiber reactors

Liu, Chunqing; Xu, Yungen; Liao, Shengrong; Yu, Da‐Gang

doi:10.1016/s1381-1169(00)00068-6

Cited by 27 publications

(12 citation statements)

References 28 publications

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“…In recent years, catalysis employing metal nanoparticles has become a subject of intense interest due, in major part, to the enhanced activity and selectivity of nanostructured catalysts. [5][6][7] When catalytic nanoparticles are formed on the surface of an inorganic or carbon substrate, however, the nanoparticle size and morphology cannot be precisely regulated. 8,9 One reliable means by which to overcome this challenge is to grow the nanoparticles in nanostructured polymers exhibiting well-defined buried interfaces.…”

Section: Introductionmentioning

confidence: 99%

Structure and Catalytic Properties of Pt-Modified Hyper-Cross-Linked Polystyrene Exhibiting Hierarchical Porosity

Bronstein¹,

Goerigk²,

Kostylev³

et al. 2004

J. Phys. Chem. B

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The structural transformation and catalytic properties of metal/polymer nanocomposites derived from hypercross-linked polystyrene (HPS) exhibiting both microporosity and macroporosity, and filled with Pt nanoparticles, are investigated in the direct oxidation of L-sorbose to 2-keto-L-gulonic acid. Transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction, anomalous small-angle X-ray scattering, and catalytic studies suggest that the catalytically active species, nanoparticles of mixed composition with a mean diameter of 1.6 nm, develop after the initial induction period. At the highest selectivity (96.8%) at 100% L-sorbose conversion, the catalytic activity is measured to be 2.5 × 10-3 mol/mol Pt-s, which corresponds to a 4.6-fold increase in activity relative to the Pt-modified microporous HPS previously reported. This substantial increase in catalytic activity is attributed to the presence of macropores, which facilitate mass transport and, consequently, accessibility of the nanoparticle surface for reactants.

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Section: Introductionmentioning

confidence: 99%

Structure and Catalytic Properties of Pt-Modified Hyper-Cross-Linked Polystyrene Exhibiting Hierarchical Porosity

Bronstein¹,

Goerigk²,

Kostylev³

et al. 2004

J. Phys. Chem. B

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“…sulfone and melamine formaldehyde resin by using aqueous solutions of NaBH 4 and N 2 H 4 as reducing agents ( Figure 2). [36,37] Interestingly, these catalysts are selective for the hydrogenation of mixtures of 1,3-butadiene and 1-butene, by using a continuous hollow fibre reactor. Palladium-and palladium-cobalt-NPs stabilised by polyvinylpyrrolidone-cellulose acetate and synthesised by NaBH 4 reduction were applied in the chemoselective hydrogenation of 1,3-butadiene.…”

Section: Palladium-np Catalysed Partial Hydrogenation Of Linear 13-dmentioning

confidence: 99%

“…The same authors also reported the application of these catalytic system in the partial hydrogenation of cyclopentadiene, which produced cyclopentene (13) selectivities of up to 98 % at high conversions ( % 85-95 %). [37] Palladium-NPs 2.0-3.0 nm in size prepared by H 2 reduction in the presence of a methyltetracyclododecene diblock copolymer (see Figure 2) as the stabiliser were reported to be an active nanocatalyst for the partial hydrogenation of 1,3-butadiene under solvent-free conditions. [38] This catalyst produced TOF values of up to 0.31 s À1 and butene selectivities of up to 92 %.…”

Section: Palladium-np Catalysed Partial Hydrogenation Of Linear 13-dmentioning

confidence: 99%

The Partial Hydrogenation of 1,3‐Dienes Catalysed by Soluble Transition‐Metal Nanoparticles

2013

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ChemCatChem 2014, 6, 702 -710 702 CHEMCATCHEM MINIREVIEWS Scheme 1. Full and partial hydrogenation products formed from 1,3-butadiene, 1,3-cyclohexadiene, 1,3-cyclooctadiene and cyclopentadiene.Scheme 2. Single-site mechanism of full and partial hydrogenation of 1,3-cyclohexadiene catalysed by a single atom. Adapted from Ref. [13].Scheme 3. Multi-site mechanism of full and partial hydrogenation of 1,3-cyclohexadiene catalysed by an ensemble of surface atoms.

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“…These early works focused on thick non-porous metal membranes. Additionally, much of the early work on catalytic membrane reactors focused on gas-phase reactions [18,19]; while more recent work in the gas phase includes the novel destruction of chemical warfare agents [20]. Since then,…”

Section: Introductionmentioning

confidence: 99%

Composite catalytic tubular membranes for selective hydrogenation in three-phase systems

et al. 2016

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Catalytic membrane contact reactors (CMCRs) were evaluated for the selective three-phase hydrogenation of the model reaction, the partial hydrogenation of soybean oil (PHSO). PHSO produces copious amounts of trans-fats when carried out in a batch slurry reactor due to hydrogen starvation at the catalyst, caused by inherent mass transfer limitations of the system. In this study composite ceramic/polymer membranes were rendered catalytically active by depositing a polymer-palladium complex, (poly(N-vinyl-2-pryyolidone) (PVP)-palladium (Pd)), onto the selective skin of the membrane. Hydrogen gas was supplied to the support side of the membrane, the hydrogen gas permeated from the support side to the skin side of the membrane, where it dissociated onto the catalyst surface. Liquid reactant was circulated over the skin side of the membrane, allowing the three components to come into contact and react. Our system is shown to be nearly zero order in hydrogen, indicating that the catalyst surface maintains high hydrogen coverage throughout. CMCRs produced 50% less trans-fat at equivalent levels of hydrogenation compared to slurry reactors. It was further demonstrated that an increase in

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Selective hydrogenation of cyclopentadiene in mono- and bimetallic catalytic hollow-fiber reactors

Cited by 27 publications

References 28 publications

Structure and Catalytic Properties of Pt-Modified Hyper-Cross-Linked Polystyrene Exhibiting Hierarchical Porosity

Structure and Catalytic Properties of Pt-Modified Hyper-Cross-Linked Polystyrene Exhibiting Hierarchical Porosity

The Partial Hydrogenation of 1,3‐Dienes Catalysed by Soluble Transition‐Metal Nanoparticles

Composite catalytic tubular membranes for selective hydrogenation in three-phase systems

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