Glycerol from biodiesel production: Technological paths for sustainability

Monteiro, Marcos Roberto; Kugelmeier, Cristie Luis; Pinheiro, Rafael Sanaiotte; Batalha, Mário Otávio; César, Aldara da Silva

doi:10.1016/j.rser.2018.02.019

Cited by 419 publications

(263 citation statements)

References 99 publications

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“…The term glycerol is often used in the literature as the pure substance, whereas the term glycerin is assigned to commercial solutions of glycerol in water in different concentrations. Afterwards crude glycerol is usually treated and distilled into separate chemical additives in order to produce a significant range of glycerin, typically containing more than 95 % glycerol …”

Section: Catalytic Production Of Platform Chemicals From Lignocellulomentioning

confidence: 99%

Recent Advances in the Catalytic Production of Platform Chemicals from Holocellulosic Biomass

et al. 2019

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This Review discusses novel catalytic pathways of lignocellulosic biomass to value‐added chemicals including biomass‐derived sugar alcohols, organic acids, furans and biohydrocarbons. These production approaches are undertaken by biological, chemical and thermochemical transformations or a combination of them. Nevertheless, the majority of research in this area is focused on the design of heterogeneous catalysts to convert value‐added products from holocellulosic biomass. Biorefineries represent the peak of biomass processes in order to produce valuable chemicals and liquid fuels avoiding the utilization of corroding and toxic elements. The aim of the present Review is to offer the readers a broad overview of recent holocellulosic‐based chemical and fuels production technologies via heterogeneous catalysis. There is also an overview of the economic aspects to efficiently produce these platform chemicals at industrial scale. To summarize this Review, an outlook and conclusions of the reported processes to date is provided.

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Section: Catalytic Production Of Platform Chemicals From Lignocellulomentioning

confidence: 99%

Recent Advances in the Catalytic Production of Platform Chemicals from Holocellulosic Biomass

et al. 2019

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“…[25] Glycerol has become widely available because it is the major byproduct in the manufacturing of biodiesel. [26] "Biodiesel" is a populart erm for the fatty acid methyl esters formed by transesterification of vegetable oils with methanol. [27] It has been shown that the use of glycerol as the feedstock for the synthesis of carbonates can lead to as ignificant reduction in the carbon footprint of their productionc ompared with the use of fossil resources.…”

Section: Resultsmentioning

confidence: 99%

Plasma‐Assisted Immobilization of a Phosphonium Salt and Its Use as a Catalyst in the Valorization of CO₂

Peglow

Longwitz

et al. 2020

ChemSusChem

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The first plasma‐assisted immobilization of an organocatalyst, namely a bifunctional phosphonium salt in an amorphous hydrogenated carbon coating, is reported. This method makes the requirement for prefunctionalized supports redundant. The immobilized catalyst was characterized by solid‐state 13C and 31P NMR spectroscopy, SEM, and energy‐dispersive X‐ray spectroscopy. The immobilized catalyst (1 mol %) was employed in the synthesis of cyclic carbonates from epoxides and CO2. Notably, the efficiency of the plasma‐treated catalyst on SiO2 was higher than those of the SiO2 support impregnated with the catalyst and even the homogeneous counterpart. After optimization of the reaction conditions, 13 terminal and four internal epoxides were converted with CO2 to the respective cyclic carbonates in yields of up to 99 %. Furthermore, the possibility to recycle the immobilized catalyst was evaluated. Even though the catalyst could be reused, the yields gradually decreased from the third run. However, this is the first example of the recycling of a plasma‐immobilized catalyst, which opens new possibilities in the recovery and reuse of catalysts.

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“…Although bioethanol was generated from non‐edible biomass, its production is still in its infancy . Glycerol is generated as a by‐product during the manufacture of biodiesel from renewable sources . In most cases, more than stoichiometric base were required during the hydrogenation .…”

Section: Introductionmentioning

confidence: 99%

“…[12] Glycerol is generated as a by-product during the manufacture of biodiesel from renewable sources. [13] In most cases, more than stoichiometric base were required during the hydrogenation. [11] Thus, there is a strong incentive to develop various alternative renewable hydrogen source for hydrogenation organic reactions, such as non-food lignocellulosic biomass, one of the most abundant renewable source in nature.…”

Section: Introductionmentioning

confidence: 99%

Utilization of a Hydrogen Source from Renewable Lignocellulosic Biomass for Hydrogenation of Nitroarenes

et al. 2019

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Exploring of hydrogen source from renewable biomass, such as glucose in alkaline solution, for hydrogenation reactions had been studied since 1860s. According to proposed pathway, only small part of hydrogen source in glucose was utilized. Herein, the utilization of a hydrogen source from renewable lignocellulosic biomass, one of the most abundant renewable sources in nature, for a hydrogenation reaction is described. The hydrogenation is demonstrated by reduction of nitroarenes to arylamines in up to 95 % yields. Mechanism studies suggest that the hydrogenation occurs via a hydrogen transformation pathway.

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Glycerol from biodiesel production: Technological paths for sustainability

Cited by 419 publications

References 99 publications

Recent Advances in the Catalytic Production of Platform Chemicals from Holocellulosic Biomass

Recent Advances in the Catalytic Production of Platform Chemicals from Holocellulosic Biomass

Plasma‐Assisted Immobilization of a Phosphonium Salt and Its Use as a Catalyst in the Valorization of CO₂

Utilization of a Hydrogen Source from Renewable Lignocellulosic Biomass for Hydrogenation of Nitroarenes

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Glycerol from biodiesel production: Technological paths for sustainability

Cited by 419 publications

References 99 publications

Recent Advances in the Catalytic Production of Platform Chemicals from Holocellulosic Biomass

Recent Advances in the Catalytic Production of Platform Chemicals from Holocellulosic Biomass

Plasma‐Assisted Immobilization of a Phosphonium Salt and Its Use as a Catalyst in the Valorization of CO2

Utilization of a Hydrogen Source from Renewable Lignocellulosic Biomass for Hydrogenation of Nitroarenes

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Plasma‐Assisted Immobilization of a Phosphonium Salt and Its Use as a Catalyst in the Valorization of CO₂