A greener process for isosorbide production: Kinetic study of the catalytic dehydration of pure sorbitol under microwave

Polaert, Isabelle; Felix, Mariana Cunha; Fornasero, Mélissa; Marcotte, Stéphane; Buvat, Jean-Christophe; Estel, Lionel

doi:10.1016/j.cej.2013.02.043

Cited by 45 publications

(23 citation statements)

References 16 publications

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“…An accurate estimation of the total heat generation in the load requires tailor‐made microwave applicators, such as the ones used in Refs. , in which the electromagnetic field is well defined and the reflected power can be accurately estimated (and minimized), for instance, by including power transfer sensors in different parts of the system. Commercial microwave heating devices for laboratory applications do not provide such capability.…”

Section: Resultsmentioning

confidence: 99%

Furfural Synthesis from d‐Xylose in the Presence of Sodium Chloride: Microwave versus Conventional Heating

et al. 2016

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We investigate the existence of specific/nonthermal microwave effects for the dehydration reaction of xylose to furfural in the presence of NaCl. Such effects are reported for sugars dehydration reactions in several literature reports. To this end, we adopted three approaches that compare microwave‐assisted experiments with a) conventional heating experiments from the literature; b) simulated conventional heating experiments using microwave‐irradiated silicon carbide (SiC) vials; and at c) different power levels but the same temperature by using forced cooling. No significant differences in the reaction kinetics are observed using any of these methods. However, microwave heating still proves advantageous as it requires 30 % less forward power compared to conventional heating (SiC vial) to achieve the same furfural yield at a laboratory scale.

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Section: Resultsmentioning

confidence: 99%

Furfural Synthesis from d‐Xylose in the Presence of Sodium Chloride: Microwave versus Conventional Heating

et al. 2016

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“…146 Recently, catalyst-free conditions such as microwave heating were also reported. 152 Isosorbide can also be synthesized directly from cellulose via a cascade catalytic process employing a molten salt hydrate ZnCl 2 medium. 153 These rigid diols have proven particularly useful for the synthesis of polyester and polycarbonates with high glass transition temperatures.…”

Section: Polyolsmentioning

confidence: 99%

Catalysis as an Enabling Science for Sustainable Polymers

et al. 2017

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The replacement of current petroleum-based plastics with sustainable alternatives is a crucial but formidable challenge for the modern society. Catalysis presents an enabling tool to facilitate the development of sustainable polymers. This review provides a system-level analysis of sustainable polymers and outlines key criteria with respect to the feedstocks the polymers are derived from, the manner in which the polymers are generated, and the end-of-use options. Specifically, we define sustainable polymers as a class of materials that are derived from renewable feedstocks and exhibit closed-loop life cycles. Among potential candidates, aliphatic polyesters and polycarbonates are promising materials due to their renewable resources and excellent biodegradability. The development of renewable monomers, the versatile synthetic routes to convert these monomers to polyesters and polycarbonate, and the different end-of-use options for these polymers are critically reviewed, with a focus on recent advances in catalytic transformations that lower the technological barriers for developing more sustainable replacements for petroleum-based plastics.

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“…23 Polaert et al proposed a method of dehydration of sorbitol to isosorbide in the presence of Amberlyst™ 35, a sulfonic acid ion exchange resin, by using a solvent-free system under microwave heating. 45 Azadi et al were able to produce a lignin derived solvent (LDS) that is effective for selective biomass conversion processes. They make use of LDS in their catalytic process to convert the hemicellulose and cellulose fractions of biomass into high value platform chemicals and biofuels (i.e.…”

Section: Catalytic Conversionmentioning

confidence: 99%

The battle for the “green” polymer. Different approaches for biopolymer synthesis: bioadvantaged vs. bioreplacement

2014

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Biopolymers have been used throughout history; however, in the last two centuries they have seen a decrease in their utilization as the proliferation of inexpensive and mass-produced materials from petrochemical feedstocks quickly became better-suited to meeting society's needs. In recent years, high petroleum prices and the concern of society to adopt greener and cleaner products has led to an increased interest in biorenewable polymers and the use of sustainable technologies to produce them. Industrial and academic researchers alike have targeted several routes for producing these renewable materials. In this perspective, we compare and contrast two distinct approaches to the economical realization of these materials. One mentality that has emerged we term "bioreplacement", in which the fields of synthetic biology and catalysis collaborate to coax petrochemical monomers from sugars and lignocellulosic feedstocks that can subsequently be used in precisely the same ways to produce precisely the same polymers as we know today. For example, the metabolic engineering of bacteria is currently being explored as a viable route to common monomers such as butadiene, isoprene, styrene, acrylic acid, and sebacic acid, amongst others. Another motif that has recently gained traction may be referred to as the "bioadvantage" strategy, where the multifunctional "monomers" given to us by nature are combined in novel ways using novel chemistries to yield new polymers with new properties; for these materials to compete with their petroleum-based counterparts, they must add some advantage, for example less cost. For instance, acrylated epoxidized soybean oil readily undergoes polymerization to thermosets and recently, thermoplastic rubbers. Additionally, many plants produce pre-polymeric or polymeric materials that require little or no post modification to extract and make use of these compounds.

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A greener process for isosorbide production: Kinetic study of the catalytic dehydration of pure sorbitol under microwave

Cited by 45 publications

References 16 publications

Furfural Synthesis from d‐Xylose in the Presence of Sodium Chloride: Microwave versus Conventional Heating

Furfural Synthesis from d‐Xylose in the Presence of Sodium Chloride: Microwave versus Conventional Heating

Catalysis as an Enabling Science for Sustainable Polymers

The battle for the “green” polymer. Different approaches for biopolymer synthesis: bioadvantaged vs. bioreplacement

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