Solvent Free Upgrading of 5-Hydroxymethylfurfural (HMF) with Levulinic Acid to HMF Levulinate Using Tin Exchanged Tungstophosphoric Acid Supported on K-10 Catalyst

Tiwari, Manishkumar S.; Wagh, Dipti P.; Dicks, Jennifer Sarah; Keogh, John; Ansaldi, Michela; Ranade, Vivek V.; Manyar, Haresh

doi:10.1021/acsorginorgau.2c00027

Cited by 8 publications

(6 citation statements)

References 30 publications

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“…Thus, converting the liability from biodiesel industry into the asset, adhering to the principles of circular economic approach, while at the same time improving the process economics and profitability of the overall biorefinery concept. In continuation of our group's interest in biomass derived drop in fuels [14][15][16][17][18][19][20][21][22][23], and environmental catalysis [24][25][26][27][28][29][30][31][32][33][34][35][36], herein we have critically reviewed the upgrading glycerol to glycerol esters as the products.…”

Section: Upgrading Glycerol To Value Added Glycerol Esters: the Key T...mentioning

confidence: 99%

Nanostructured Solid/Liquid Acid Catalysts for Glycerol Esterification: The Key to Convert Liability into Assets

Keogh,

Inrirai,

Artioli

et al. 2024

Preprint

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Owing to the growing concerns due to dwindling fossil fuel reserves, increasing energy demand and climate emergency, it is imperative to develop and deploy sustainable energy technologies to ensure future energy supply as well as transition to the net zero world. In this context, there is great potential in the biorefinery concept for supplying drop in biofuels in the form of biodiesel. Biodiesel as a fuel can certainly bridge the gap where electrification or the use of hydrogen is not feasible, for instance heavy vehicles, farm and marine transportation sector. However, biodiesel industry also leads to formation of large amount of crude glycerol as the byproduct. Crude glycerol due to presence of several impurities may not be a suitable feedstock for all high value products derived from glycerol but fits well with glycerol esterification for producing glycerol acetins, which have numerous applications. This review critically looks at the processes using nanostructured solid/liquid acid catalysts for glycerol esterification including the economic viability of the scale up.

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Section: Upgrading Glycerol To Value Added Glycerol Esters: the Key T...mentioning

confidence: 99%

Nanostructured Solid/Liquid Acid Catalysts for Glycerol Esterification: The Key to Convert Liability into Assets

Keogh,

Inrirai,

Artioli

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Thus, this accomplishes the conversion of the liability from the biodiesel industry into assets while adhering to the principles of the circular economy approach and improving the process economics and profitability of the overall biorefinery concept. In continuation of our group's interest in a biomass-derived drop in fuels [15][16][17][18][19][20][21][22][23][24] and an environmental catalysis [25][26][27][28][29][30][31][32][33][34][35][36][37][38], herein, we have critically reviewed the upgrading of glycerol to glycerol esters as the products.…”

Section: Upgrading Glycerol To Value-added Glycerol Esters: the Key T...mentioning

confidence: 99%

Nanostructured Solid/Liquid Acid Catalysts for Glycerol Esterification: The Key to Convert Liability into Assets

Keogh,

Inrirai,

Artioli

et al. 2024

Nanomaterials

Self Cite

View full text Add to dashboard Cite

Owing to the growing concerns about the dwindling fossil fuel reserves, increasing energy demand, and climate emergency, it is imperative to develop and deploy sustainable energy technologies to ensure future energy supply and to transition to the net-zero world. In this context, there is great potential in the biorefinery concept for supplying drop in biofuels in the form of biodiesel. Biodiesel as a fuel can certainly bridge the gap where electrification or the use of hydrogen is not feasible, for instance, in heavy vehicles and in the farm and marine transportation sectors. However, the biodiesel industry also generates a large amount of crude glycerol as the by-product. Due to the presence of several impurities, crude glycerol may not be a suitable feedstock for all high-value products derived from glycerol, but it fits well with glycerol esterification for producing glycerol acetins, which have numerous applications. This review critically looks at the processes using nanostructured solid/liquid acid catalysts for glycerol esterification, including the economic viability of the scale-up. The homogeneous catalysts reviewed herein include mineral acids and Brønsted acidic ionic liquids, such as SO3H-functionalized and heteropoly acid based ionic liquids. The heterogeneous catalysts reviewed herein include solid acid catalysts such as metal oxides, ion-exchange resins, zeolites, and supported heteropoly acid-based catalysts. Furthermore, the techno-economic analysis studies have shown the process to be highly profitable, confirming the viability of glycerol esterification as a potential tool for economic value addition to the biorefinery industry.

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“…However, the leaching problem is not completely avoidable. 15,16 For this purpose, doping the protons of HPW with metal ions to prepare an insoluble salt is a feasible strategy.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the immobilization of HPW on porous support should be considered to overcome this matter associated with leaching. However, the leaching problem is not completely avoidable 15,16 . For this purpose, doping the protons of HPW with metal ions to prepare an insoluble salt is a feasible strategy.…”

Section: Introductionmentioning

confidence: 99%

In situ impregnation of cobalt‐doped tungstophosphoric acid on MOF‐801 toward enhanced catalytic activity for esterification

Zhang,

Hu,

Chen

et al. 2024

Applied Organom Chemis

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Development of an energy‐efficient and economical route is necessary for society to synthesize green biofuels. Herein, cobalt‐doped tungstophosphoric acid (Co‐HPW) is in‐situ impregnated in the Zr‐based metal–organic framework (MOF‐801) forming composite of Co‐HPW/MOF‐801. The chemical composition, morphology, and acidic sites of the Co‐HPW/MOF‐801 composite were analyzed through x‐ray diffractometer (XRD), Fourier transform infrared (FTIR), scanning electron microscope (SEM), energy‐dispersive x‐ray spectroscopy (EDS), thermogravimetric analysis (TG), N2 physisorption, ammonia temperature‐programmed desorption (NH3‐TPD), pyridine‐adsorbed infrared spectra (Py‐FTIR), and x‐ray photoelectron spectroscopy (XPS). The catalytic performance of the as‐synthesized catalyst was explored to catalyze esterification of lauric acid (LA) with methanol. The outcomes revealed that the Co‐HPW/MOF‐801 nanocatalyst achieved a high conversion of 86.3% under the optimized reaction condition (catalyst amount of 0.15 g, temperature of 100°C, time of 4 h, and methanol/LA molar ratio of 20:1). The excellent catalytical performance is mainly due to the large BET surface area, exposure of more active centers from available pore structure, and simultaneous possession of high Lewis and Brønsted acidity. Furthermore, the kinetic study revealed that the reaction process was kinetically controlled and the activation energy was found to be 42.1 kJ/mol. The results suggest that the synthesized Co‐HPW/MOF‐801 nanocatalyst is an environmental greenness, low cost, and suitable for easy scale‐up for the production of biofuels.

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Solvent Free Upgrading of 5-Hydroxymethylfurfural (HMF) with Levulinic Acid to HMF Levulinate Using Tin Exchanged Tungstophosphoric Acid Supported on K-10 Catalyst

Abstract: Solvent free upgrading of 5-hydroxymethylfurfural (HMF) with levulinic acid to HMF levulinate using tin exchanged tungstophosphoric acid supported on K-10 catalyst. ACS Organic & Inorganic Au.

Cited by 8 publications

References 30 publications

Nanostructured Solid/Liquid Acid Catalysts for Glycerol Esterification: The Key to Convert Liability into Assets

Nanostructured Solid/Liquid Acid Catalysts for Glycerol Esterification: The Key to Convert Liability into Assets

Nanostructured Solid/Liquid Acid Catalysts for Glycerol Esterification: The Key to Convert Liability into Assets

In situ impregnation of cobalt‐doped tungstophosphoric acid on MOF‐801 toward enhanced catalytic activity for esterification

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