Evaluation of straw with absorbed glycerol thermal degradation during pyrolysis and combustion by TG-FTIR and TG-GC/MS

Striūgas, Nerijus; Skvorčinskienė, Raminta; Paulauskas, Rolandas; Zakarauskas, Kęstutis; Vorotinskienė, Lina

doi:10.1016/j.fuel.2017.05.063

Cited by 38 publications

(14 citation statements)

References 18 publications

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“…During this stage, the amount of water vapor increases, and the identifiable gaseous product is water. The initial peaks at 1750-1250 cm − 1 and 4000-3200 cm − 1 represent moisture within the biomass and sludge as detailed by the published literature [15,30,[43][44][45][46][47]. The second stage corresponds to biomass decarboxylation and oxidation.…”

Section: Characterization Of the Gas Evolution During The Cothermal Degradation Of Rs And Ssmentioning

confidence: 96%

Co-thermal degradation characteristics of rice straw and sewage sludge

Ngo

Chiang

2021

Sustain Environ Res

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Co-thermal treatment of binary biomass mixture is an alternative to enhance the refractory decomposition of biomass thermal degradation efficiency resulted in the synergistic reaction. Rice straw (RS) containing a large amount of fixed carbon (FC) is quite difficult to thermally decompose at a lower temperature. Considering the RS and sewage sludge (SS), co-thermal treatment for enhancing energy conversion efficiency was feasible. This study investigates the kinetic behaviors and gas evolution of RS, SS, and their blends under co-thermal decomposition processes using Thermogravimetric analysis combined with Fourier-Transform Infrared Spectroscopy (FTIR). The experimental results indicate that SS could enhance the volatile matter decomposition in RS co-thermal process at lower temperatures. Activation energy decreases from 53 to 49 kJ mol− 1 with an increase in SS addition from 50 to 80% under pyrolysis conditions. The major volatile components were aliphatic chains with double bonds, as well as carbonyl, hydroxyl, and C–H groups in organic compounds by FTIR identification. The tested materials characteristics in terms of volatile matter (VM)-to-FC ratio significantly affected the thermal degradation performance. Activation energy was decreased with increasing the VM/FC ratio. It implied that co-thermal reaction could be accelerated. In summary, the results could provide the important information for co-thermal treatment of SS and RS in application for commercial-scale plant design.

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Section: Characterization Of the Gas Evolution During The Cothermal Degradation Of Rs And Ssmentioning

confidence: 96%

Co-thermal degradation characteristics of rice straw and sewage sludge

Ngo

Chiang

2021

Sustain Environ Res

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“…In the second stage (from 210°C to ~380°C), the remarkable weight loss (~70%) was observed due to hemicellulose and cellulose decomposition, which is also the main pyrolysis stage of the samples. Finally, in the third stage (from 400°C to 800°C), the residues, such as lignin, were again pyrolyzed slowly [22,23] , forming relatively stable char.…”

Section: Extraction Of Bioactive Substances Under Different Conditionsmentioning

confidence: 99%

Biorefinery process for production of bioactive compounds and bio-oil from Camellia oleifera shell

Wang

Yang

et al. 2019

International Journal of Agricultural and Biological Engineering

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A biorefinery process was developed in this study to obtain bioactive compounds and bio-oil from Camellia oleifera shells. Four different extraction techniques (water, ethanol, ultrasound-assisted deionized water, and ultrasound-assisted ethanol) were utilized to extract tea saponin and tannin from C. oleifera shells. Results showed that ethanol had better extraction capacity than did deionized water, and ultrasound could promote the dissolution of tannin and tea saponin in solution. The thermogravimetric curves of the samples treated under the four conditions moved toward high temperatures. This phenomenon indicated the thermal stability of the residue was significantly improved. The pretreatment showed a slight effect on the chemical compositions of bio-oil. Specifically, the samples treated with ethanol and ultrasound-assisted deionized water contained higher phenol contents (81.07% and 81.52%, respectively) than the other samples. The content of organic acid decreased with an increase in the phenol content.

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“…Zaproponowany proces znacznie poprawia ekonomikę procesu otrzymywania biopaliwa, ponieważ wszystkie produkty reakcji mogą stanowić składniki nowego typu paliwa [5,6]. W publikacji [7] autorzy przeprowadzili pirolizę gliceryny, wyróżnili etapy konwersji, a powstałe produkty gazowe scharakteryzowano metodą GC-MS. Glicerol stanowi atrakcyjną biomasę pod względem energetycznym. W pracy [8] zaprezentowano wpływ wody, alkoholu metylowego oraz soli -NaCl, Na 2 SO 4 i KNO 3 na zjawisko mikroeksplozji występujące podczas spalania kropel surowego glicerolu.…”

Section: Wprowadzenieunclassified

Thermal Analysis of Biofuels in Relation to Light Fuel Oil

Karaś¹

2018

Eng. Prot. Environ.

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The paper examines results of thermal analysis biocomponents, biofuels in reference to commercial light fuel oil. The biocomponents were: glycerol from biorafinery, by product of the transesterfication process with methanol of higher fatty acids of rapeseed oil, foreshot and fusel, waste from a distillery. The purpose of tests was to compare thermal properties of biofuels obtained with the use of biocomponents in reference to fuel oil. Thermal analysis was carried out by the TG/DSC method by TG-DTA/DSC machine produced by SETARAM. The measurements were carried out in oxygen, in the temperature range from 17 to 800°C, with a constant temperature increase of 10 degrees per minute. The obtained values enabled a comparative analysis of the effects of chemical and thermal transformations, which occur during the combustion of fuels of a different composition. From all considered biofuels, the most energy-efficient was two-component, one-glycerol with methanol, characterized by an exothermic peak with the largest thermal effect.

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Evaluation of straw with absorbed glycerol thermal degradation during pyrolysis and combustion by TG-FTIR and TG-GC/MS

Cited by 38 publications

References 18 publications

Co-thermal degradation characteristics of rice straw and sewage sludge

Co-thermal degradation characteristics of rice straw and sewage sludge

Biorefinery process for production of bioactive compounds and bio-oil from Camellia oleifera shell

Thermal Analysis of Biofuels in Relation to Light Fuel Oil

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