Study on the synergistic co-pyrolysis behaviors of mixed rice husk and two types of seaweed by a combined TG-FTIR technique

Wang, Shanwen; Wang, Q.; Hu, Yamin; Xu, Shimei; He, Zhixia; Ji, Hengsong

doi:10.1016/j.jaap.2015.05.008

Cited by 96 publications

(14 citation statements)

References 41 publications

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“…Wang et al investigated the interactions by co‐pyrolyzing different terrestrial biomass components and found that there existed distinct interactions between co‐pyrolysis of lignin‐cellulose but minor interactions between lignin‐xylan. In our previous research, the interaction of macroalgae and terrestrial plant during pyrolysis has been studied and there exited a synergistic effect between them . The results revealed that the crude oil quality was promoted by deoxygenation reaction and the hydrogen to carbon ratio and the content of aromatic substances were increased, while the bio‐oil yield was decreased .…”

Section: Introductionmentioning

confidence: 99%

Co‐pyrolysis characteristics of polysaccharides‐cellulose and the co‐pyrolyzed compound distributions over two kinds of zeolite catalysts

et al. 2020

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Summary Co‐pyrolysis characteristics of soluble polysaccharides‐cellulose were investigated through thermogravimetric analysis (TGA), kinetic analysis, analytical pyrolyser coupled with gas chromatograph‐mass spectrometer (Py‐GC/MS) and subsequent density functional theory (DFT). Results from TGA and differential thermogravimetric analysis (DTG) analyses indicated that there were synergistic effects in the polysaccharides‐cellulose (PS‐CE) blends pyrolysis process. Surprisingly in co‐pyrolysis process from Py‐GC/MS analysis, the furans were suppressed, while the anhydrosugars were increased. The DFT calculation showed that free radicals pyrolyzed from soluble polysaccharides could suppress the ring‐opening reaction of D‐glucopyranose. The co‐pyrolyzed chemical compound distribution over the catalysts (MCM‐41, ZSM‐5 and their mixtures) was also detected through Py‐GC/MS analysis. Both the zeolites showed high selectivity for 5‐methyl‐2‐furaldehyde and 2‐furaldehyde. The two kinds of zeolites could induce the generation of furans but suppress the production of anhydrosugars, which was the opposite effect of the co‐pyrolysis of PS‐CE.

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Section: Introductionmentioning

confidence: 99%

Co‐pyrolysis characteristics of polysaccharides‐cellulose and the co‐pyrolyzed compound distributions over two kinds of zeolite catalysts

et al. 2020

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“…Given that there is growing interest in finding new sources of starch with new and unique properties (WANG et al 2015;HUANG et al 2015, EJEBE et al 2015, SHAH et al 2017, CONDÉS et al 2018, MERCI et al 2019) several studies were performed using X-ray diffraction analysis to distinguish the three types of crystallinity for the different starch granules. These crystallinity patterns depend in part on the length of the amylopectin chains, the packing density within the granules, as well as, the presence of water (LIMA et al 2012;DUTTA et al 2015, HUANG et al 2015, CAPPA et al 2016, PINKAEW et al 2017.…”

Section: Introductionmentioning

confidence: 99%

Study of the Red Rice Parboilization Process

Pereira

Martins

Sousa

et al. 2020

JAS

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This research aimed to obtain information on hydrated red rice at different temperatures (45, 55, 65 and 75 °C) for 7 hours. During the hydration process, the structural and morphological modifications of red rice were observed, as well as the hydration kinetics by Peleg (1988), Cavalcanti-Mata & Duarte (2018) and Duarte & Cavalcanti Mata (2018) models. There were performed X-ray diffraction (XRD) and scanning electron microscopy (SEM) analysis in order to identify the type of crystallinity and to obtain images referring to the surfaces of the starch granules particles. The results identified by the XRD analysis that hydrated red rice is classified as type a starch. And the SEM analysis identified that there was a change in its morphological structure, providing the beginning of red rice starch gelatinization. The absorption kinetics showed that above 5 hours of hydration at 55, 65 and 75 °C, the red rice grain reaches 28% water content. Mathematical modeling proves that the models proposed by Cavalcanti & Duarte and Cavalcanti Mata & Duarte (2018) performed better than Peleg's model (1988), according to the statistical parameters evaluated (P, SE, DQM, and R2). The XRD and SEM results of red rice hydrated for 7 hours at 55 °C, autoclaved for 14, 22 and 30 minutes and dried at 50, 60 and 70 °C confirm parboiling process since the starchy structure of red rice was very distinct from the type A starch structure and confirmed the starch gelatinization.

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“…[1][2][3] Since the past few decades, many researchers have been exploring clean and renewable energy sources in order to ensure sustainable energy development and reduce fossil fuel dependency and environmental pollution. [7][8][9] Based on the raw materials used for synthesizing, biofuels can be categorized into three different kinds. As accepted widely, biomass is a promising renewable energy source with the great potential to replace fossil fuels.…”

Section: Introductionmentioning

confidence: 99%

“…As accepted widely, biomass is a promising renewable energy source with the great potential to replace fossil fuels. [7][8][9] Based on the raw materials used for synthesizing, biofuels can be categorized into three different kinds.…”

Section: Introductionmentioning

confidence: 99%

Effect of cosolvent and addition of catalyst (HZSM‐5) on hydrothermal liquefaction of macroalgae

et al. 2019

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Summary The present study aimed to evaluate the effect of the direct liquefaction of macroalgae in an autoclave reactor (50 mL) possessing water and ethanol as cosolvent. The reaction conditions such as duration, temperature, algae/solvent ratio, the composition of cosolvent (ethanol‐water) on product distribution, and bio‐oil characterization were studied. The optimum conditions such as 300°C of temperature, 45 minutes of reaction time, 75% of ethanol, and algae to solvent ratio of 4/40 g/mL supported the bio‐oil yield of 46.75% with a conversion rate of 95.5%. The composition and concentration of the compounds in the bio‐oil produced under various doses of catalyst were described using GC‐MS. The bio‐oil characterization showed that the esters were most predominant in hydrothermal liquefaction with a catalyst (HZSM‐5) compared with hydrothermal liquefaction in the absence of the catalyst.

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Study on the synergistic co-pyrolysis behaviors of mixed rice husk and two types of seaweed by a combined TG-FTIR technique

Cited by 96 publications

References 41 publications

Co‐pyrolysis characteristics of polysaccharides‐cellulose and the co‐pyrolyzed compound distributions over two kinds of zeolite catalysts

Co‐pyrolysis characteristics of polysaccharides‐cellulose and the co‐pyrolyzed compound distributions over two kinds of zeolite catalysts

Study of the Red Rice Parboilization Process

Effect of cosolvent and addition of catalyst (HZSM‐5) on hydrothermal liquefaction of macroalgae

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