Characterization of solar fuels obtained from beech wood solar pyrolysis

Zeng, Kuo; Gauthier, Daniel J.; Minh, Doan Pham; Weiss-Hortala, Elsa; Nzihou, Ange; Flamant, Gilles

doi:10.1016/j.fuel.2016.10.036

Cited by 100 publications

(30 citation statements)

References 48 publications

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“…The temperature is in the range from 300 to 1000 • C [469]. The heat required can be provided by solar radiation concentrated by solar collectors [470]. Thermodynamic and kinetic conditions, including temperature, heating rate and residence time, determine the nature and composition of products.…”

Section: Pyrolysismentioning

confidence: 99%

Green Synthetic Fuels: Renewable Routes for the Conversion of Non-Fossil Feedstocks into Gaseous Fuels and Their End Uses

et al. 2020

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Innovative renewable routes are potentially able to sustain the transition to a decarbonized energy economy. Green synthetic fuels, including hydrogen and natural gas, are considered viable alternatives to fossil fuels. Indeed, they play a fundamental role in those sectors that are difficult to electrify (e.g., road mobility or high-heat industrial processes), are capable of mitigating problems related to flexibility and instantaneous balance of the electric grid, are suitable for large-size and long-term storage and can be transported through the gas network. This article is an overview of the overall supply chain, including production, transport, storage and end uses. Available fuel conversion technologies use renewable energy for the catalytic conversion of non-fossil feedstocks into hydrogen and syngas. We will show how relevant technologies involve thermochemical, electrochemical and photochemical processes. The syngas quality can be improved by catalytic CO and CO2 methanation reactions for the generation of synthetic natural gas. Finally, the produced gaseous fuels could follow several pathways for transport and lead to different final uses. Therefore, storage alternatives and gas interchangeability requirements for the safe injection of green fuels in the natural gas network and fuel cells are outlined. Nevertheless, the effects of gas quality on combustion emissions and safety are considered.

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Section: Pyrolysismentioning

confidence: 99%

Green Synthetic Fuels: Renewable Routes for the Conversion of Non-Fossil Feedstocks into Gaseous Fuels and Their End Uses

et al. 2020

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“…However, they reduce to 1.43 and 0.34 mol/kg of wood, respectively. It is mainly due to the enhancement of their own cracking reaction and steam reforming reaction as temperature increase from 1000 C to 1600 C, which dominates their degradation mechanisms [21,41].…”

Section: Pyrolysis Gas Composition and Lhvs At Different Temperaturesmentioning

confidence: 99%

“…The temperature and heating rate drastically affects the final product distribution and gas composition during solar pyrolysis of raw biomass [16]. The gas product especially H 2 and CO yield significantly increased with temperature (from 600 to 1600 C) and heating rate (from 5 to 50 C/s) mainly due to the enhanced secondary tar reactions [21]. Besides, temperature and heating rate are known to affect HMs transformation during conventional pyrolysis of contaminated biomass [3].…”

Section: Introductionmentioning

confidence: 99%

Solar pyrolysis of heavy metal contaminated biomass for gas fuel production

Zeng

Minh

et al. 2019

Energy

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The study presented an innovative way to dispose and upgrade heavy metal (HM) contaminated biomass by solar pyrolysis. Pyrolysis of raw and HM (Cu and Ni) impregnated willow wood was performed in a solar reactor under different temperatures (600, 800, 1000, 1200, 1400 and 1600 C) and heating rates (10 and 50 C/s). The combined effects of HM and heating parameters (temperature and heating rates) on solar pyrolysis products were investigated. The results indicated that a threshold temperature of 1000 C was required in impregnated willow pyrolysis to make sure copper and nickel catalytic effects on promoting the cracking and reforming reactions of tar. It led to the gas yields from copper or nickel impregnated willow pyrolysis at 1200 C increased by 14.76% and 34.47%, respectively, compared with that from raw willow. In particular, the H 2 and CO production from nickel impregnated willow were higher than those from raw willow (10.30 and 12.16 mol/kg of wood versus 6.59 and 8.20 mol/kg of wood) in case of fast pyrolysis (50 C/s). Under heating rate of 10 C/s, H 2 and CO yields from only nickel impregnated willow increased compared with that from raw willow. Solar pyrolysis of HM contaminated biomass is a promising way to produce valuable syngas.

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“…Using a statistical analysis, the authors found the optimum values of the studied variables for producing maximum gas lower heating value. Zeng et al studied the effects of water content, pyrolysis temperature, and heating rate on the product distribution of the solar pyrolysis of beech wood and concluded that a high water content in feedstock led to the formation of a gas‐rich in CO and H 2 . Fuels also obtained from beech wood solar pyrolysis were characterized by Zeng et al, who reported an upgrading of biomass energy higher than 50% at 900°C, indicating the successful solar energy storage in chemical form. Hijazi et al investigated the use of heterogeneous photocatalysts in the solar pyrolysis of waste rubber tires.…”

Section: Introductionmentioning

confidence: 99%

A comparative study of the behavior of Chlamydomonas reinhardtii and Spirulina platensis in solar catalytic pyrolysis

et al. 2020

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Summary The aim of this study was to investigate the behavior of two distinct microalgae species during solar catalytic pyrolysis and the influence of their chemical composition and the process variables (biomass charge, reaction time, and catalyst percentage) on the product yields and bio‐oil composition. For this purpose, solar catalytic pyrolysis of Spirulina platensis and Chlamydomonas reinhardtii was performed using hydrotalcite‐derived mixed oxides as the catalyst. To gain more insight into the effect of composition on pyrolysis behavior, the biomasses were analyzed using various analytical techniques. The results indicated that a high percentage of catalyst (47.1%) culminated in liquid yields of 42.48% and 21.31% for Chlamydomonas pyrolysis and Spirulina pyrolysis, respectively. Additionally, Spirulina pyrolysis resulted in higher solid yields compared with Chlamydomonas pyrolysis. The results also showed that Spirulina bio‐oil was rich in oxygenated compounds, probably due to its high carbohydrate content, whereas Chlamydomonas bio‐oil was rich in nitrogenated compounds because of its higher protein content. The microalgae composition (lipids, protein, carbohydrates) exerted a large influence on the catalytic pathways and led to differences in yield and product distribution. A high percentage of catalysts preferentially promoted a deoxygenation of the bio‐oil obtained from Spirulina solar pyrolysis compared with that obtained from Chlamydomonas pyrolysis.

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Characterization of solar fuels obtained from beech wood solar pyrolysis

Cited by 100 publications

References 48 publications

Green Synthetic Fuels: Renewable Routes for the Conversion of Non-Fossil Feedstocks into Gaseous Fuels and Their End Uses

Green Synthetic Fuels: Renewable Routes for the Conversion of Non-Fossil Feedstocks into Gaseous Fuels and Their End Uses

Solar pyrolysis of heavy metal contaminated biomass for gas fuel production

A comparative study of the behavior of Chlamydomonas reinhardtii and Spirulina platensis in solar catalytic pyrolysis

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