Liquefaction of biomass by plasma electrolysis in alkaline condition

Zhang, Xianhui; Bo, Chengbin; Xi, Dengke; Fang, Zhi; Feng, Zhe; Yang, Sui

doi:10.1016/j.renene.2020.10.142

Cited by 9 publications

(5 citation statements)

References 43 publications

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“…Zhang et al 173 studied the plasma electrolytic liquefaction (PEL) of sawdust using alkaline solutions. A transition of the discharge from corona to spark was observed with adding sodium hydroxide (NaOH), with a liquefaction yield at optimum conditions reaching 96.7%.…”

Section: Plasma Technology For Biomass Conversionmentioning

confidence: 99%

Section: Plasma Technology For Biomass Conversionmentioning

confidence: 99%

“…In contrast, the liquid exhibits a higher carbon content and less oxygenated products, translating to an increase in the high heating value (HHV) compared to the native biomass feedstock. 173,174,177 Most plasma-assisted liquefaction studies compare their results to those of other liquefaction technologies that use either conventional heating (oil bath, autoclave, etc.) or nonconventional methods based on microwaves and ultrasound.…”

Section: Used Pulsedmentioning

confidence: 99%

“…Plasma electrolytic liquefaction showed remarkably higher energy efficiency compared to all the other technologies, as shown in Table 7. 173,174,177 Considering the much higher liquefaction rates, the possibility of running in alkaline solutions, and the applicability to several biomass feedstocks, plasmaassisted liquefaction is an up-and-coming biomass conversion technology. However, it is imperative to investigate further the interplay among the plasma heating effects, the electric field, the ion mobility, and the radical contribution to the reactions with the complex biomass molecules.…”

Section: Used Pulsedmentioning

confidence: 99%

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Plasma technology for lignocellulosic biomass conversion toward an electrified biorefinery

et al. 2022

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show abstract

Section: Plasma Technology For Biomass Conversionmentioning

confidence: 99%

Section: Plasma Technology For Biomass Conversionmentioning

confidence: 99%

Section: Used Pulsedmentioning

confidence: 99%

Section: Used Pulsedmentioning

confidence: 99%

See 2 more Smart Citations

Plasma technology for lignocellulosic biomass conversion toward an electrified biorefinery

et al. 2022

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show abstract

“…To accelerate the process, usually up to 3% addition of a homogeneous catalyst is used. As a homogenous catalyst, strong acids (e.g., sulphuric acid 23 ; p-toluenesulfonic acid 24 ) and strong bases (e.g., sodium hydroxide and potassium hydroxides) 25 may be used. The main product of this reaction may contain a mixture of compounds rich in hydroxyl groups.…”

Section: Introductionmentioning

confidence: 99%

Effect of bio-polyol molecular weight on the structure and properties of polyurethane-polyisocyanurate (PUR-PIR) foams

Olszewski,

Kosmela,

Vēvere

et al. 2024

Sci Rep

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The increasing interest in polyurethane materials has raised the question of the environmental impact of these materials. For this reason, the scientists aim to find an extremely difficult balance between new material technologies and sustainable development. This work attempts to validate the possibility of replacing petrochemical polyols with previously synthesized bio-polyols and their impact on the structure and properties of rigid polyurethane-polyisocyanurate (PUR-PIR). To date, biobased polyols were frequently used in the manufacturing of PU, but application of bio-polyols synthesized via solvothermal liquefaction using different chains of polyethylene glycol has not been comprehensively discussed. In this work, ten sets of rigid polyurethane foams were synthesized. The influence of bio-polyols addition on foam properties was investigated by mechanical testing, thermogravimetric analysis (TGA), and cone calorimetry. The structure was determined by scanning electron microscopy (SEM) and a gas pycnometer. The tests revealed a significant extension of foam growth time, which can be explained by possible steric hindrances and the presence of less reactive secondary hydroxyl groups. Moreover, an increase average size of pores and aspect ratio was noticed. This can be interpreted by the modification of the cell growth process by the introduction of a less reactive bio-polyol with different viscosity. The analysis of foams mechanical properties showed that the normalized compressive strength increased up to 40% due to incorporation of more cross-linked structures. The thermogravimetric analysis demonstrated that the addition of bio-based polyols increased temperature of 2% (T2%) and 5% (T5%) mass degradation. On the other hand, evaluation of flammability of manufactured foams showed increase of total heat release (HRR) and smoke release (TSR) what may be caused by reduction of char layer stability. These findings add substantially to our understanding of the incorporation of bio-polyols into industrial polyurethane systems and suggest the necessity of conducting further research on these materials.

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Biomass to Energy — an Analysis of Current Technologies, Prospects, and Challenges

Banerjee

2022

Bioenerg. Res.

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Liquefaction of biomass by plasma electrolysis in alkaline condition

Cited by 9 publications

References 43 publications

Plasma technology for lignocellulosic biomass conversion toward an electrified biorefinery

Plasma technology for lignocellulosic biomass conversion toward an electrified biorefinery

Effect of bio-polyol molecular weight on the structure and properties of polyurethane-polyisocyanurate (PUR-PIR) foams

Biomass to Energy — an Analysis of Current Technologies, Prospects, and Challenges

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