Glucose gasification in super-critical water conditions for both syngas production and green chemicals with a continuous process

Molino, Antonio; Migliori, Massimo; Macrì, Domenico; Valerio, V.; Villone, A.; Nanna, F.; Iovane, Pierpaolo; Marino, Tiziana

doi:10.1016/j.renene.2016.01.065

Cited by 27 publications

(21 citation statements)

References 23 publications

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“…Gasification via water in supercritical condition (SWC = 22.1 MPa and 374 • C) is a valuable way to process wet biomass, producing hydrogen-rich syngas [213,214]. Demirbas [215] investigated the effect of operating temperatures (650-700 K) on hydrogen production from biomass gasification in supercritical water condition, observing an increase of hydrogen content from 6.6% to 9.4% with the temperature increasing from 650 to 700 K.…”

Section: Hydrogenmentioning

confidence: 99%

Biofuels Production by Biomass Gasification: A Review

et al. 2018

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The production of biofuels from renewable sources is a major challenge in research. Methanol, ethanol, dimethyl ether (DME), synthetic natural gas (SNG), and hydrogen can be produced from syngas which is the result of the gasification of biomasses. Syngas composition varies according to the gasification technology used (such as fixed bed reactors, fluidized bed reactors, entrained flow reactors), the feedstock characteristics, and the operating parameters. This paper presents a review of the predominant biomass gasification technologies and biofuels obtained from syngas by biomass gasification.

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Section: Hydrogenmentioning

confidence: 99%

Biofuels Production by Biomass Gasification: A Review

et al. 2018

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“…DME is a reliable alternative fuel for diesel engines due to its high cetane number and soot-free emissions [7,8]. Moreover, DME can be produced from biomass or CO 2 and, as it can also be used as an intermediate to produce olefins and chemicals, it is considered a promising energetic vector of the future for introducing renewable energy in the chemical industry [9][10][11]. e valorisation of biomass by using zeolites is receiving a growing attention because it opens new ways for application of these materials in low temperature and liquid phase reactions of biomass or biomass-derived compounds [12,13].…”

Section: Introductionmentioning

confidence: 99%

Hierarchical Low Si/Al Ratio Ferrierite Zeolite by Sequential Postsynthesis Treatment: Catalytic Assessment in Dehydration Reaction of Methanol

Catizzone

Migliori

Aloise

et al. 2019

Journal of Chemistry

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In contrast to high silica zeolites, it is difficult to obtain mesoporosity in zeolites with low Si/Al ratio (e.g., <20) via conventional NaOH-based treatment, making the obtainment of hierarchical zeolites with high acidity a challenging target. In this paper, we report the preparation of hierarchical FER-type zeolite at low Si/Al molar ratio (about 10) by postsynthesis etching involving a sequence of three treatments with NaAlO 2 , HCl, and NaOH solutions and investigate the effect of both NaAlO 2 solution concentration and time of treatment on the textural properties. e obtained materials exhibit a mesoporous volume higher than the parent ferrierite with no significant effect on the sample acidity. e catalytic activity of some samples was investigated in vapour-phase methanol dehydration to dimethyl ether, revealing the superiority of hierarchical zeolites in terms of methanol conversion, although the presence of mesopores causes formation of light hydrocarbons at high temperatures.

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“…High-performance liquid chromatography (HPLC) pumps are often used for pumping liquid reagents to high pressures with precise flow rate control in the range of 0.01-30 mL/min [6][7][8][9]. Diaphragm, syringe, and piston pumps can be employed when higher flow rates are needed or when pumping a slurry [7,10].…”

Section: Heating and Pressurizationmentioning

confidence: 99%

“…Resistive heaters, electric furnaces, and immersive fluidized baths have been used to reach the desired reaction temperatures [5,7,10,[13][14][15]. Resistive cartridge heaters are attractive options for preheating, as the tubing can be tightly wound around the cartridge to minimize heat loss.…”

Section: Heating and Pressurizationmentioning

confidence: 99%

Gasification Kinetics in Continuous Supercritical Water Reactors

Pinkard¹,

Kramlich²,

Reinhall³

et al. 2020

Advanced Supercritical Fluids Technologies

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Supercritical water gasification (SCWG) is an emerging technology with synergistic applications in renewable energy and waste processing. Supercritical water (SCW) functions as a green reaction medium during the gasification process, serving to dissolve and decompose complex organic molecules via ionic, radical, hydrolysis, and pyrolysis reaction mechanisms. Researchers investigate the decomposition of model compounds in order to predict product yields and conversion efficiencies during the gasification of heterogeneous biomass waste, food waste, sewage sludge, and other available feedstocks. Continuous, laboratory-scale reactors are often employed to study reaction kinetics, pathways, and mechanisms. This chapter synthesizes previous work investigating model compound gasification in continuous supercritical water reactors (SCWRs). A summary of continuous reactor design strategies is presented for practical benefit, followed by a discussion on reaction chemistry in the supercritical water environment. Reaction pathways and mechanisms have been investigated for several model compounds, lending insight toward the conditions needed for the complete conversion of real-world feedstocks. Several studies assume first-order reaction kinetics and propose Arrhenius parameters for the decomposition reaction. The first-order rate assumption must be carefully evaluated, and the applicable temperature range must be specified. Opportunities for further research are discussed.

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Glucose gasification in super-critical water conditions for both syngas production and green chemicals with a continuous process

Cited by 27 publications

References 23 publications

Biofuels Production by Biomass Gasification: A Review

Biofuels Production by Biomass Gasification: A Review

Hierarchical Low Si/Al Ratio Ferrierite Zeolite by Sequential Postsynthesis Treatment: Catalytic Assessment in Dehydration Reaction of Methanol

Gasification Kinetics in Continuous Supercritical Water Reactors

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