Selective production of glycolaldehyde via hydrothermal pyrolysis of glucose: Experiments and microkinetic modeling

Kostetskyy, Pavlo; Coile, Matthew; Terrian, Joshua M.; Collins, Jake W.; Martin, Kévin; Brazdil, James F.; Broadbelt, Linda J.

doi:10.1016/j.jaap.2020.104846

Cited by 22 publications

(47 citation statements)

References 43 publications

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“…Particularly, products not considered in their work are observed experimentally, such as pyruvaldehyde, acetol, glyoxal and permanent gases. 3,4 Additional reactions were therefore proposed and modelled in this work in order to develop a kinetic model for the sugar cracking process. A simplified reaction network of the kinetic model developed in this work is shown in Figure 2, based on the work of Seshadri & Westmoreland 24 with the further reactions modelled in this work.…”

Section: Model Developmentmentioning

confidence: 99%

“…[10][11][12] Currently, work is ongoing to produce ethylene glycol from sugars through GA. 13 Considerable experimental and theoretical work has been carried out in the field of glucose pyrolysis including work on isotopically labelled glucose to elucidate reaction pathways, [14][15][16][17][18] influence of operating conditions [19][20][21][22] and reaction modelling. 4,[23][24][25] The experiments have generally been carried out using micro pyrolyzer reactors, where the sugar is in solid form. When this method is used, the yields of glycolaldehyde are generally low (5-6%) and anhydrosugars are formed (6-12%).…”

Section: Introductionmentioning

confidence: 99%

“…Most noticeably, only small amounts of anhydrosugars are formed (<1%), and the yield of glycolaldehyde is much higher (up to 73-74%). 3,4 Seshadri & Westmoreland 24 calculated gas phase kinetic parameters for pyrolysis of sugars based on quantum-chemical and statistical mechanics calculations and discussed the implications for cellulose pyrolysis. They calculated kinetic parameters for a number of reactions relevant to sugar cracking, including isomerization with the effect of water partial pressure and decomposition reactions by retro-aldol reactions.…”

Section: Introductionmentioning

confidence: 99%

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Kinetic Modeling of Gas Phase Sugar Cracking to Glycolaldehyde and Other Oxygenates

Schandel

Høj

Osmundsen

et al. 2020

ACS Sustainable Chem. Eng.

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Section: Model Developmentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Kinetic Modeling of Gas Phase Sugar Cracking to Glycolaldehyde and Other Oxygenates

Schandel

Høj

Osmundsen

et al. 2020

ACS Sustainable Chem. Eng.

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“… 1 − 4 Based on its specific characteristics, many companies, especially “Red Arrow Products Company”, produce a variety of food-flavoring compositions that effectively strive with comparable products known as “liquid smoke”. 3 , 5 GA could be among the ideal candidates for synthetic browning of food products at the industrial scale. 5 − 8 Bio-oil composition mainly depends on the nature of biomass feedstock, pyrolysis temperature, and catalyst used.…”

Section: Introductionmentioning

confidence: 99%

“… 3 , 5 GA could be among the ideal candidates for synthetic browning of food products at the industrial scale. 5 − 8 Bio-oil composition mainly depends on the nature of biomass feedstock, pyrolysis temperature, and catalyst used. 9 In the literature, GA formation is attributed to thermal decomposition of the cellulose.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Fast Pyrolysis of Soybean Straw Biomass for Glycolaldehyde-Rich Bio-oil Production and Subsequent Extraction

et al. 2021

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In this study, soybean straw (SS) as a promising source of glycolaldehyde-rich bio-oil production and extraction was investigated. Proximate and ultimate analysis of SS was performed to examine the feasibility and suitability of SS for thermochemical conversion design. The effect of the co-catalyst (CaCl 2 + ash) on glycolaldehyde concentration (%) was examined. Thermogravimetric-Fourier-transform infrared (TG-FTIR) analysis was applied to optimize the pyrolysis temperature and biomass-to-catalyst ratio for glycolaldehyde-rich bio-oil production. By TG-FTIR analysis, the highest glycolaldehyde concentration of 8.57% was obtained at 500 °C without the catalyst, while 12.76 and 13.56% were obtained with the catalyst at 500 °C for a 1:6 ratio of SS-to-CaCl 2 and a 1:4 ratio of SS-to-ash, respectively. Meanwhile, the highest glycolaldehyde concentrations (%) determined by gas chromatography–mass spectrometry (GC–MS) analysis for bio-oils produced at 500 °C (without the catalyst), a 1:6 ratio of SS-to-CaCl 2 , and a 1:4 ratio of SS-to-ash were found to be 11.3, 17.1, and 16.8%, respectively. These outcomes were fully consistent with the TG-FTIR results. Moreover, the effect of temperature on product distribution was investigated, and the highest bio-oil yield was achieved at 500 °C as 56.1%. This research work aims to develop an environment-friendly extraction technique involving aqueous-based imitation for glycolaldehyde extraction with 23.6% yield. Meanwhile, proton nuclear magnetic resonance ( 1 H NMR) analysis was used to confirm the purity of the extracted glycolaldehyde, which was found as 91%.

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Do not forget the classical catalyst poisons: The case of biomass to glycols via catalytic hydrogenolysis

Molder

Kersten

Lange

et al. 2022

Biofuels Bioprod Bioref

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The conversion of herbaceous biomass to glycols via tungstate catalyzed hydrogenolysis is challenging owing to its high content of extractives, inorganics and S/N, compared with woody biomass. We tested the hydrogenolysis performance of hay in batch autoclave experiments in the presence of soluble sodium polytungstate and Raney Ni at 245°C, both in excess of catalyst as well as under catalyst‐starving conditions. By this method, we found that additional tungstate and Raney Ni poisons, or at least their much higher concentrations, are present in the hay feedstock compared with woody biomass. It turns out that N‐ and in particular S‐containing components present in hay are the root cause for deactivation of the hydrogenation catalyst. From the experimental data we have derived feedstock criteria for N and S that should be targeted in terms of catalyst consumption for operation in an industrially relevant window. These challenging criteria urge the development of effective pretreatments for S/N removal or the employment of S/N‐tolerant catalysts in the field of catalytic biomass conversion. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Selective production of glycolaldehyde via hydrothermal pyrolysis of glucose: Experiments and microkinetic modeling

Cited by 22 publications

References 43 publications

Kinetic Modeling of Gas Phase Sugar Cracking to Glycolaldehyde and Other Oxygenates

Kinetic Modeling of Gas Phase Sugar Cracking to Glycolaldehyde and Other Oxygenates

Catalytic Fast Pyrolysis of Soybean Straw Biomass for Glycolaldehyde-Rich Bio-oil Production and Subsequent Extraction

Do not forget the classical catalyst poisons: The case of biomass to glycols via catalytic hydrogenolysis

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