Feasibility of broadening the feedstock choice for levoglucosenone production by acid pre-treatment of wood and catalytic pyrolysis of the obtained lignocellulose

Zandersons, Jānis; Zhurinsh, Aivars; Dobele, Gaļina; Jurkjāne, Vilhelmīne; Rizhikovs, Janis; Spince, Baiba; Pazhe, A.

doi:10.1016/j.jaap.2013.01.014

Cited by 28 publications

(24 citation statements)

References 12 publications

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“…The acceleration of the dehydration reaction in acid-treated biomass results in higher yields of platform chemicals, such as levoglucosenone and furans, which were obtained even at low temperatures in the previous studies. 7,9,34…”

Section: Resultsmentioning

confidence: 99%

Synchrotron-Based Infra-Red Spectroscopic Insights on Thermo-Catalytic Conversion of Cellulosic Feedstock to Levoglucosenone and Furans

2019

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Thermo-catalytic conversion of cellulosic feedstock, such as lignocellulose, to platform chemicals offers a renewable alternative to fossil-based chemicals. Mechanistic insights behind thermochemical conversion of lignocellulose would facilitate thermo-catalytic process development for bio-based chemicals. This study employed synchrotron-based Fourier transform infrared (FTIR) microspectroscopy to investigate chemical changes in acid-catalyzed cellulose and lignocellulose and glucose during pyrolysis. Major changes in glucose occurred at 200 °C, where it underwent reactions including ring opening and tautomerization. Acid treatment did not change the molecular structure of cellulose but disrupted the lignocellulose network. The observed synchrotron FTIR spectral features provided evidence for acceleration of catalytic dehydration of cellulose and lignocellulose to levoglucosenone and furans. Catalytic passivation of alkali and alkaline earth metals in lignocellulose was also observed at low acid concentration.

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Section: Resultsmentioning

confidence: 99%

Synchrotron-Based Infra-Red Spectroscopic Insights on Thermo-Catalytic Conversion of Cellulosic Feedstock to Levoglucosenone and Furans

2019

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“…[28][29][30] LGO has traditionally been produced in low yields by catalytic fast pyrolysis of biomass, and many attempts have been made to improve the LGO yield using pyrolysis technologies. 17,[31][32][33][34][35][36][37][38][39] Notably, Dobele and coworkers pre-treated wood with phosphoric acid prior to pyrolysis, with LGO making up 30% of the total peak area of the detectable products at 375 1C. 38 Zhang and coworkers explored sulfated zirconia, a solid superacid, as a means to improve the yield of LGO, but their best carbon yield was only 8.4%.…”

Section: Introductionmentioning

confidence: 99%

Dehydration of cellulose to levoglucosenone using polar aprotic solvents

Cao

Schwartz

McClelland

et al. 2015

Energy Environ. Sci.

177

153

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“…[38][39][40][41][42] For example, in one of the studies, the wood was treated with phosphoric acid, and this led to a 30 % increased yield of LGO after pyrolysis at 375 °C. 36 According to our results, in the mineralized wood, after thermal desorption at 240 °C, LGO was found as the single major product (besides some minor furfural and anhydrous-glucopyranose), Struvite crystals (MgNH 4 PO 4 •6H 2 O) are composed of equimolar content of Mg 2+ , NH 4 + , and PO 4 3− and its thermal decomposition is well studied in the literature. [43][44] The decomposition starts around 110 °C and continues stepwise, however, in the first step, the formation of MgHPO 4 is usually completed before ~180 °C, which is at a lower temperature than the decomposition of wood.…”

Section: Resultsmentioning

confidence: 60%

Struvite Mineralized Wood as Sustainable Building Material: Mechanical and Combustion Behavior

Guo

Özparpucu

Windeisen‐Holzhauser

et al. 2020

ACS Sustainable Chem. Eng.

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A more extensive use of wood can reduce the environmental and climatic impact of the building industry. However, flammability limits the application of wood in multi-story and high rise timber buildings. Struvite mineralization has been shown to be a green solution for fire-resistant timber, but the influence of struvite minerals on the mechanical and gluing properties of wood as well as the combustion behavior have not been studied yet. In this work, we investigate the mechanical properties of mineralized wood by compression, bending, and tension tests as well as the gluing properties by tensile shear tests. Evolved gas analysis using GC/MSD system is applied to determine the thermal decomposition behavior of the mineralized wood, and Double shot analysis reveals volatile components of mineralized wood during the thermal decomposition process. The results show that the struvite mineralization treatment is a bulk modification technique that improves the fire resistance of wood. The mineralization can significantly influence the thermal decomposition behavior of wood, which results in an enhanced char formation. This char layer is a fire barrier that slows down the heat and oxygen penetration. The heat penetration rate of wood panels fabricated with mineralized wood is 0.6 mm/min during the cone calorimeter test, which is half of that of the wood panels fabricated with native wood. Transverse strength and stiffness under compression were improved, whereas mechanical loading in the longitudinal direction revealed similar or slightly decreased strength and stiffness. The mineralization had a minor impact on the gluing properties of solid wood. Wood mineralization by struvite may enable the more extensive use of wood in the construction sector as a substitute to less eco-friendly building materials.

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Feasibility of broadening the feedstock choice for levoglucosenone production by acid pre-treatment of wood and catalytic pyrolysis of the obtained lignocellulose

Cited by 28 publications

References 12 publications

Synchrotron-Based Infra-Red Spectroscopic Insights on Thermo-Catalytic Conversion of Cellulosic Feedstock to Levoglucosenone and Furans

Synchrotron-Based Infra-Red Spectroscopic Insights on Thermo-Catalytic Conversion of Cellulosic Feedstock to Levoglucosenone and Furans

Dehydration of cellulose to levoglucosenone using polar aprotic solvents

Struvite Mineralized Wood as Sustainable Building Material: Mechanical and Combustion Behavior

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