Preliminary Study of the Biorefinery Concept to Obtain Furfural and Binder-less Panels from Hemp (Cannabis Sativa L.) Shives

Brazdausks, Prans; Tupčiauskas, Ramūnas; Andžs, Mārtiņš; Rizhikovs, Janis; Puķe, Māris; Pāže, Aigars; Meile, Kristine; Vederņikovs, Nikolajs

doi:10.1016/j.egypro.2015.06.006

Cited by 12 publications

(5 citation statements)

References 14 publications

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“…Control results seem to agree with the bibliography with a similar element rate. Indeed Brazdausks et al [35] studied elemental analysis on the hemp shiv part of "Bialobrzeskie" variety. Results were 47.4% carbon, 5.3% hydrogen, 0.6% nitrogen, 0.2% sulfur and 46.8% oxygen obtained by difference.…”

Section: Elementary Analysismentioning

confidence: 99%

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Cell Wall Composition of Hemp Shiv Determined by Physical and Chemical Approaches

et al. 2021

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The use of agricultural by-products in the building engineering realm has led to an increase in insulation characteristics of biobased materials and a decrease in environmental impact. The understanding of cell wall structure is possible by the study of interactions of chemical compounds, themselves determined by common techniques like Van Soest (VS). In this study, a global method is investigated to characterise the cell wall of hemp shiv. The cell wall molecules were, at first, isolated by fractionation of biomass and then analysed by physical and chemical analysis (Thermal Gravimetric Analysis, Elementary Analysis, Dynamic Sorption Vapor and Infra-Red). This global method is an experimental way to characterise plant cell wall molecules of fractions by Thermal Gravimetric Analysis following by a mathematical method to have a detailed estimation of the cell wall composition and the interactions between plant macromolecules. The analyzed hemp shiv presents proportions of 2.5 ± 0.6% of water, 4.4 ± 0.2% of pectins, 42.6 ± 1.0% (Hemicellulose–Cellulose), 18.4 ± 1.6% (Cellulose–Hemicellulose), 29.0 ± 0.8% (Lignin–Cellulose) and 2.0 ± 0.4% of linked lignin.

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Section: Elementary Analysismentioning

confidence: 99%

“…Raising sulfur is due to H 2 SO 4 treatment that leaves some traces of sulfur. Hydrogen rate and especially calculated oxygen rate decreased because of cellulose elimination mainly composed of hydroxyl groups and corresponding to 49% of dry mass (Table 4, Figure 2) [35][36][37][38].…”

Section: Elementary Analysismentioning

confidence: 99%

Cell Wall Composition of Hemp Shiv Determined by Physical and Chemical Approaches

et al. 2021

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“…In the studies of Vassilev et al (2010) [77], the sulfur content in pine sawdust did not exceed 0.1%. Burczyk (2015) [78], after Cichy (2013) [79], states that the sulfur content in the dry matter of hemp is 0.08%, and according to Brazdausks et al (2015) [80], in hemp chaff, sulfur constitutes 0.2 ± 0.01%. A similar sulfur content in hemp pellets-at the level of 0.04%, was found by Petlickaite et al (2022) [45].…”

Section: Resultsmentioning

confidence: 99%

Thermal Energy and Exhaust Emissions of a Gasifier Stove Feeding Pine and Hemp Pellets

et al. 2022

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This paper presents the results of research on the energetic use of self-combusted hemp pellets and co-firing with pine pellets. The tests were carried out with the use of a boiler equipped with a Lester Projekt Company gasifying burner and an automatic fuel feeding system. The boiler is equipped with an additional heat exchanger that enables the simulation of any heat load. The experimental stand so built guaranteed to obtain results adequate to the real operating conditions. The research material consisted of pellets made of waste biomass of the Futura 75 sowing hemp and pine sawdust pellets. The experiment was carried out in five proportions by mass of mixtures of both fuels (C-hemp, P-pine): 0:100 (P100), 25:75 (C25/P75), 50:50 (C50/P50), 75:25 (C75/P25), 100:0 (C100). For each variant, the following were determined: effective boiler power, boiler energy balance, boiler energy efficiency, the volumetric composition of flue gas (carbon monoxide, carbon dioxide, hydrogen, sulfur dioxide, nitrous oxide), excess air coefficient and the dust content of particle matter—PM10, PM2.5. The heating value was also determined for hemp pellets and pine sawdust pellets, accordingly 17.34 and 19.87 MJ·kg−1. The obtained test results were related both to the volume of exhaust gases leaving the boiler and to one kilowatt hour of heat produced. The obtained test results showed that the boiler fed with pine pellets achieved the highest thermal power (P100)—14.17 kW, while the smallest—hemp pellets (C100)—4.92 kW. The CO2 emissivity increased with the addition of pine pellets, from 26.13 g (C100) to 112.36 g (P100) relating to 1 m3 and from 430.04 g (C100) to 616.46 g (C25/P75) relating to 1 kWh of heat. In terms of dust emissions, it was found that the combustion of hemp pellets and mixtures thereof is a little worse than that of pine pellets.

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“…Kuglarz et al (2016) investigated dilute-acid as well as alkaline oxidative pretreatments to enhance the simultaneous production of succinic acid and ethanol. Moreover, Brazdausks et al (2015) produced furfural and binder-less panels from hemps hurds by adding Al 2 (SO 4 ) 3 as catalyst to conventional steam explosion treatment. Finally, Semhaoui et al (2018) combined the use of sulfuric acid as catalyst with a thermochemical process in order to improve the hemicellulose solubilization and the enzymatic hydrolysis of cellulose.…”

Section: Introductionmentioning

confidence: 99%

Single and Mixed Feedstocks Biorefining: Comparison of Primary Metabolites Recovery and Lignin Recombination During an Alkaline Process

et al. 2020

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Cannabis sp. and Euphorbia sp. are potential candidates as indoor culture for the extraction of their high value-added metabolites for pharmaceutical applications. Both residual lignocellulosic materials recovered after extraction are studied in the present article as single or mixed feedstocks for a closed-loop bioprocesses cascade. An alkaline process (NaOH 3%, 30 min 160 • C) is performed to separate the studied biomasses into their main components: lignin and cellulose. Results highlight the advantages of the multi-feedstocks approach over the single biomass in term of lignin yield and purity. Since the structural characteristics of lignin affect the potential applications, a particular attention is drawn on the comprehension of lignin structure alteration and the possible interaction between them during single or mixed feedstocks treatment. FTIR and 2D-NMR spectra revealed similar profiles in term of chemical functions and structure rather than novel chemical bonds formation inexistent in the original biomasses. In addition, thermal properties and molecular mass distribution are conserved whether hemp or euphorbia are single treated or in combination. A second treatment was applied to investigate the effect of prolonged treatment on extracted lignins and the possible interactions. Aggregation, resulting in higher molecular mass, is observed whatever the feedstocks combination. However, mixing biomass does not affect chemical structures of the end product. Therefore, our paper suggests the possibility of gathering lignocellulosic residues during alkali process for lignin extraction and valorization, allowing to forecast lignin structure and make assumptions regarding potential valorization pathway.

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Preliminary Study of the Biorefinery Concept to Obtain Furfural and Binder-less Panels from Hemp (Cannabis Sativa L.) Shives

Cited by 12 publications

References 14 publications

Cell Wall Composition of Hemp Shiv Determined by Physical and Chemical Approaches

Cell Wall Composition of Hemp Shiv Determined by Physical and Chemical Approaches

Thermal Energy and Exhaust Emissions of a Gasifier Stove Feeding Pine and Hemp Pellets

Single and Mixed Feedstocks Biorefining: Comparison of Primary Metabolites Recovery and Lignin Recombination During an Alkaline Process

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