Production of hydrogen by lignins fast pyrolysis

Baumlin, Sébastien; Broust, François; Bazer-Bachi, Frédéric; Bourdeaux, Thomas; Herbinet, Olivier; Ndiaye, Fatou Toutie; Ferrer, Monique; Lédé, Jacques

doi:10.1016/j.ijhydene.2006.02.016

Cited by 73 publications

(36 citation statements)

References 22 publications

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“…[14] Lignin has been found to transform into a sticky liquid intermediate before producing the standard pyrolysis products. [44] Therefore, the rotation speed drop can be explained by the formation of viscous "softened lignin," which offered more resistance to the mixer rotation throughout the bed. Figure 3 shows that the stirrer speed recovered after the lignin had reacted, as the bed particles were dry and no longer cohesive.…”

Section: Effect Of Bed Materialsmentioning

confidence: 99%

Effect of bed material, lignin content, and origin on the processability of biomass in fast pyrolysis reactors

2017

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Lignin has great potential for the production of valuable aromatic compounds and has attracted considerable attention. The development of high value applications for Kraft lignin would boost the profitability of pulp and paper operations. A potential solution is the pyrolytic conversion of lignin to valuable liquids and solids. However, Kraft lignin is a thermally sensitive powder which tends to agglomerate under pyrolysis conditions. A mechanically fluidized reactor (MFR) can be used to monitor both the generation of vapours and gas during pyrolysis and how cohesive a feedstock becomes when pyrolyzed. The MFR was, therefore, used to evaluate alternative solutions to improve Kraft lignin behaviour by mixing it with nonproblematic feedstocks or by modifying its bed material. Finally, Kraft lignin behaviour and products were compared to those of hydrolysis lignins from different origins.

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Section: Effect Of Bed Materialsmentioning

confidence: 99%

Effect of bed material, lignin content, and origin on the processability of biomass in fast pyrolysis reactors

2017

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“…Moreover, decomposition of char at higher temperatures significantly increases NCGs, resulting in a net increase of the gaseous products produced. Baumlin et al [178] investigated whether the biomass thermal process produces higher amounts of gas under higher temperatures. Under higher pyrolysis temperatures, there is more liquid cracking, which results in a greater yield of gaseous products and a lower yield of tar and/or char [179].…”

Section: Mode Of Productsmentioning

confidence: 99%

Potential hydrogen and non-condensable gases production from biomass pyrolysis: Insights into the process variables

Uddin

Daud

Abbas

2013

Renewable and Sustainable Energy Reviews

103

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“…[6][7][8]14 The possibility of producing hydrogen or hydrogen-rich streams from lignin sources could guarantee a sustainable route for the production of biofuels. 15 For HDO of lignin compounds, various heterogeneous catalysts composed of noble [16][17][18][19][20][21][22] and transition 14,23-28 metals, metal sulfides, 21,[29][30][31][32][33] metal phosphides, [34][35][36][37] and metal nitrides 38,39 have been introduced. A variety of model compounds incorporating hydroxy and/or methoxy groups such as phenols, 23,27,30,37,40,41 anisoles, 17,18,24,26,27,33,[42][43][44] guaiacols, 22,27,38,42,[45][46][47][48][49] syringol,…”

Section: Introductionmentioning

confidence: 99%

The utilization of synthesis gas for the deoxygenation of cyclohexanone over alumina‐supported catalysts: Screening catalysts

Bakhtyari

Sakhayi

Rahimpour

et al. 2020

Asia-Pacific J Chem Eng

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Environmental regulations motivate the industries to replace conventional fuels and chemicals by those produced from biomass. In this regard, hydrodeoxygenation of lignin compounds is of a great deal of attention. Synthesis gas could be utilized instead of pure hydrogen for the cleavage of oxygen‐containing chemical bonds through hydrodeoxygenation. Following this, the utilization of synthesis gas is investigated in the present contribution. A wide range of commercial alumina‐supported catalysts is investigated. The experimental results of cyclohexanone hydrodeoxygenation in the presence of pure hydrogen and synthesis gas at 573 K and 20 bar of total pressure are presented and discussed. The whole investigated catalysts show good activity toward the hydrodeoxygenation of cyclohexanone. Methylatedbenzene derivatives are produced from cyclohexanone hydrodeoxygenation for the first time. The catalysts composed of platinum showed the best performance. By utilizing a chlorinated platinum catalyst, 89.6% cyclohexanone conversion, 100% total hydrocarbon selectivity, and 44.6% total hydrocarbon yield are obtained. In the case of syngas‐assisted hydrodeoxygenation, 80.1% cyclohexanone conversion, 100% total hydrocarbon selectivity, and 29.6% total hydrocarbon yield are obtained by utilizing the same catalyst. The presence of methylated aromatics proves the accomplishment of methanation or direct aromatization reactions in the presence of carbon oxides and hydrogen.

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Production of hydrogen by lignins fast pyrolysis

Cited by 73 publications

References 22 publications

Effect of bed material, lignin content, and origin on the processability of biomass in fast pyrolysis reactors

Effect of bed material, lignin content, and origin on the processability of biomass in fast pyrolysis reactors

Potential hydrogen and non-condensable gases production from biomass pyrolysis: Insights into the process variables

The utilization of synthesis gas for the deoxygenation of cyclohexanone over alumina‐supported catalysts: Screening catalysts

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