Vinyl Esters

Roscher, Günter

doi:10.1002/14356007.a27_419

Cited by 12 publications

(7 citation statements)

References 61 publications

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“…However, there are several disadvantages to using vinyl ester as the acyl donor. Vinyl ester would polymerize if heated or contaminated . The bulk violent polymerization reaction of vinyl ester would lead to the rupture and blockage of industrial production equipment .…”

Section: Introductionmentioning

confidence: 99%

Binary Isobaric Vapor–Liquid Equilibrium for the System of 1-Phenylethanol + Ethyl Butyrate + Ethanol +1-Phenylethyl Butyrate at 101.3 kPa

et al. 2020

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The enzymatic reaction−distillation coupling process is a promising technology to realize the chiral resolution of (R/S)-1-phenylethanol with ethyl butyrate and ethanol as acyl donor and byproduct, respectively. In order to design such a coupling process, the vapor−liquid equilibrium (VLE) data are necessary. However, these data were incomplete in literatures. In this work, the isobaric VLE experiments were conducted at 101.3 kPa for the binary systems of 1-phenylethanol + ethyl butyrate, 1-phenylethanol + ethanol, 1-phenylethyl butyrate + ethyl butyrate, 1phenylethyl butyrate + ethanol, and 1-phenylethyl butyrate +1-pheny ethanol. Additionally, the saturated vapor pressure of 1-phenylethyl butyrate was measured in the temperature range 420−500 K and correlated with the Antoine equation. Both the Non-Random Two Liquid (NRTL) and Wilson models were used for the correlation of experimental VLE data. Both models showed satisfactory accuracy, although the Wilson model performed slightly better than the NRTL model. This work would provide important thermodynamic information for the design of enzymatic reaction−distillation coupling process to realize the chiral resolution of (R/S)-1-phenylethanol.

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Section: Introductionmentioning

confidence: 99%

Binary Isobaric Vapor–Liquid Equilibrium for the System of 1-Phenylethanol + Ethyl Butyrate + Ethanol +1-Phenylethyl Butyrate at 101.3 kPa

et al. 2020

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“…This oxidation reaction is shown in Reaction (2): (2) This reaction has a high heat of reaction, −1322.8 kJ/mol, so it can complicate thermal energy removal [15]. The reaction also consumes the oxygen and ethylene that are meant for VAM production.…”

Section: Open Accessmentioning

confidence: 99%

“…Fortunately, the VAM Reaction (1) has a much lower activation energy, 30.5 kJ/mol, than the oxidation Reaction (2), 84.1 kJ/mol [15]. Thus, keeping the reactor temperature sufficiently low will reduce the rate of Reaction (2) relative to the rate of the Reaction (1).…”

Section: Open Accessmentioning

confidence: 99%

The Production of Vinyl Acetate Monomer as a Co-Product from the Non-Catalytic Cracking of Soybean Oil

et al. 2015

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Abstract:Valuable chemical by-products can increase the economic viability of renewable transportation fuel facilities while increasing the sustainability of the chemical and associated industries. A study was performed to demonstrate that commercial quality chemical products could be produced using the non-catalytic cracking of crop oils. Using this decomposition technique generates a significant concentration of C2−C10 fatty acids which can be isolated and purified as saleable co-products along with transportation fuels. A process scheme was developed and replicated in the laboratory to demonstrate this capability. Using this scheme, an acetic acid by-product was isolated and purified then reacted with ethylene derived from renewable ethanol to generate a sample of vinyl acetate monomer. This sample was assessed by a major chemical company and found to be of acceptable quality for commercial production of polyvinyl acetate and other products.

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“…Ketones occur as byproducts of petrochemical processes, e.g., in Fischer–Tropsch aqueous product streams that contain both ketones and alcohols (in addition to other water-soluble organics), which require separation for the recovery of useful products and for water treatment. Furthermore, robust thermodynamic modeling could be used to develop solutions for the separation of esters that are important for the production of polymers, textiles, paint, and resins . Regardless of industrial interest, the modeling of these nonself-associating molecules is of theoretical importance because it allows one to isolate the effects of dipolar interactions on the behavior of thermodynamic models.…”

Section: Introductionmentioning

confidence: 99%

Expanding SAFT-γ Mie’s Application to Dipolar Species: 2-Ketones, 3-Ketones, and Propanoate Esters

Hurter

Cripwell

Burger

2020

Ind. Eng. Chem. Res.

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Statistical associating fluid theory (SAFT) equations of state (EoSs) are powerful thermodynamic modeling tools that show promise in application to a wide range of different properties and systems. SAFT-γ Mie, the group-contribution variant of the state-of-the-art SAFT-VR Mie, can describe new systems using transferable functional-group parameters. There had been a void in the modeling of nonself-associating dipolar species prior to this work, in which groups were parametrized for 2-ketones, 3-ketones, and n-alkyl propanoates (viz. CH2CO, CH3CO, and COOpr., respectively). These components occur in a wide variety of industrial processes and modeling them with SAFT-γ Mie presented the opportunity to evaluate the model’s treatment of dipolar interactions without a fundamental dipolar term in the EoS. Our new groups provide reliable binary mixture phase-equilibrium, excess enthalpy, and speed of sound predictions for all of the considered components, despite the fact that 2-ketone pure-component predictions are slightly less accurate than what is expected from such a complex SAFT model. The latter observation suggests that very precise modeling of smaller, highly dipolar molecules is challenging with a first-order group-contribution model, even in the SAFT-VR Mie-based framework. Binary mixture VLE predictions of ketone + n-alkane and ketone +1-alkanol systems are in good agreement with experimental data, suggesting that the pseudo-association approach used to treat the dipolar interactions of ketones is adequate, and that its nonrigorous nature does not inherently produce an erroneous representation of the balance between different intermolecular interactions. Two successful high-pressure binary system VLE predictions were also generated, which may spur further research into using SAFT-γ Mie and the new dipolar groups for modeling high-pressure systems.

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Vinyl Esters

Abstract: The article contains sections titled: 1. Introduction 2. Vinyl Acetate … Show more

Cited by 12 publications

References 61 publications

Binary Isobaric Vapor–Liquid Equilibrium for the System of 1-Phenylethanol + Ethyl Butyrate + Ethanol +1-Phenylethyl Butyrate at 101.3 kPa

Binary Isobaric Vapor–Liquid Equilibrium for the System of 1-Phenylethanol + Ethyl Butyrate + Ethanol +1-Phenylethyl Butyrate at 101.3 kPa

The Production of Vinyl Acetate Monomer as a Co-Product from the Non-Catalytic Cracking of Soybean Oil

Expanding SAFT-γ Mie’s Application to Dipolar Species: 2-Ketones, 3-Ketones, and Propanoate Esters

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