Production of syngas via glycerol dry reforming on Ni catalysts supported on mesoporous nanocrystalline Al2O3

Tavanarad, Masoud; Meshkani, Fereshteh; Rezaei, Mehran

doi:10.1016/j.jcou.2018.01.009

Cited by 52 publications

(19 citation statements)

References 52 publications

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“…The glycerol conversion increased for Ni from 5 to 15%, while decreased at higher Ni, which may be related to lower Ni dispersion at higher content of Ni [12].…”

Section: Glycerolmentioning

confidence: 91%

“…A number of processes, such as pyrolysis and gasification with and without catalysts, have been developed to utilize bio-ethanol and glycerol [6][7][8][9]. To effectively close the carbon cycle, dry reforming of bio-ethanol and glycerol to produce syngas or H 2 , which can be used directly or converted into high value chemical compounds were proposed [10][11][12][13]. Dry reforming normally occurs at relatively high temperatures (900-1200 K) in the existence of CO 2 .…”

Section: Lignocellulosic Biomass Pretreatmentmentioning

confidence: 99%

“…To optimize H 2 production and reaction conditions, various catalysts have been synthesized for the dry reforming of glycerol. Mesoporous catalysts of Ni/γ-Al 2 O 3 with different amounts of Ni were prepared for the dry reforming of glycerol [12]. With Ni amount increasing from 5 to 15%, the glycerol conversion increased, while it decreased at higher Ni content.…”

Section: Dry Reforming Of Glycerolmentioning

confidence: 99%

See 2 more Smart Citations

Dry Reforming of Ethanol and Glycerol: Mini-Review

Odriozola

Reina

2019

Catalysts

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Dry reforming of ethanol and glycerol using CO2 are promising technologies for H2 production while mitigating CO2 emission. Current studies mainly focused on steam reforming technology, while dry reforming has been typically less studied. Nevertheless, the urgent problem of CO2 emissions directly linked to global warming has sparked a renewed interest on the catalysis community to pursue dry reforming routes. Indeed, dry reforming represents a straightforward route to utilize CO2 while producing added value products such as syngas or hydrogen. In the absence of catalysts, the direct decomposition for H2 production is less efficient. In this mini-review, ethanol and glycerol dry reforming processes have been discussed including their mechanistic aspects and strategies for catalysts successful design. The effect of support and promoters is addressed for better elucidating the catalytic mechanism of dry reforming of ethanol and glycerol. Activity and stability of state-of-the-art catalysts are comprehensively discussed in this review along with challenges and future opportunities to further develop the dry reforming routes as viable CO2 utilization alternatives.

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“…The glycerol conversion increased for Ni from 5 to 15%, while decreased at higher Ni, which may be related to lower Ni dispersion at higher content of Ni [12].…”

Section: Glycerolmentioning

confidence: 91%

Section: Lignocellulosic Biomass Pretreatmentmentioning

confidence: 99%

Section: Dry Reforming Of Glycerolmentioning

confidence: 99%

See 1 more Smart Citation

Dry Reforming of Ethanol and Glycerol: Mini-Review

Odriozola

Reina

2019

Catalysts

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“…There is thus an increasing surplus of glycerol, creating a need to develop alternative ways to use residual glycerol. 2 Due to its high functionalization, glycerol can be transformed into several value-added products ( Table 1), such as lactic acid, [3][4][5] glyceric acid, 6-8 glycolic acid, [9][10][11] oxalic acid, 9,12 dihydroxyacetone, [13][14][15] glyceraldehyde, [16][17][18] 1,2-propanediol, [19][20][21] 1,3-propanediol, 22-24 1-propanol, 25,26 acrylic acid, [27][28][29] acrolein, [30][31][32] syngas, [33][34][35] mono-, di-, tri-glycerides, [36][37][38] triacetin, [39][40][41] glycerol oligomers, 42,43 and polymers. 44 Lactic acid is conventionally used as an acidulant and preservative in the food industry, in the chemical industry 45,46 as raw material for the production of pharmaceuticals, 47 cosmetics, 48 textiles, 49 leather,…”

Section: Reactionmentioning

confidence: 99%

“…Due to its high functionalization, glycerol can be transformed into several value‐added products (Table ), such as lactic acid, glyceric acid, glycolic acid, oxalic acid, dihydroxyacetone, glyceraldehyde, 1,2‐propanediol, 1,3‐propanediol, 1‐propanol, acrylic acid, acrolein, syngas, mono‐, di‐, tri‐glycerides, triacetin, glycerol oligomers, and polymers . Lactic acid is conventionally used as an acidulant and preservative in the food industry, in the chemical industry as raw material for the production of pharmaceuticals, cosmetics, textiles, leather, and, in a fast‐growing niche market, as monomer for the biodegradable polymer poly‐(lactic acid) or PLA .…”

Section: Introductionmentioning

confidence: 99%

Glycerol valorization: conversion to lactic acid by heterogeneous catalysis and separation by ion exchange chromatography

Arcanjo

Silva

Cavalcante

et al. 2019

Biofuels Bioprod Bioref

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The consumption and production of biodiesel has grown dramatically in recent decades, motivated by a strong interest in renewable energy. This has generated a surplus of its main by‐product, glycerol. Several catalytic processes have been proposed to generate alternatives for using this excess glycerol, mainly focusing on its transformation into high value‐added chemical products. Various products, ranging from syngas to organic acids, such as acrylic or lactic acid, along with 1,2‐propanediol, 1,3‐propanediol, glycerol ethers or even polymers, have been produced starting from glycerol. Among this multitude of possibilities, the production of lactic acid is one of the most interesting alternatives to valorize glycerol, because of the wide range of applications described for this organic acid. This review focuses on recent studies dealing with the catalytic conversion of glycerol to lactic acid, using different heterogeneous catalysts, and evaluates the factors influencing the oxidation catalytic process and the proposed reaction mechanisms. Finally, recent studies on the separation and purification of lactic acid using ion exchange chromatography resins are also reported. © 2019 Society of Chemical Industry and John Wiley & Sons, Ltd

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Nickel‐Catalyzed Dry Reforming of Methane via Modulating the Zirconia Shapes

et al. 2023

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The shape of the carriers has a profound impact on the catalytic performance of metal-supported catalysts. Herein, ZrO 2 of different shapes (nanorods-like, spherical or irregular nanoparticles, demoted as RZ, SPZ, and IPZ, respectively) are adopted to disperse Ni species to assess the shape effects on the catalytic performance in dry reforming of methane. To this end, the fresh and spent catalysts are thoroughly characterized by multiple techniques including N 2 sorption, powder X-ray diffraction, temperature-programmed reduction with H 2 , ther-mogravimetric analyses, transmission electron microscopy, Raman and X-ray photoelectron spectroscopies. It is revealed that the reducibility of NiO species follows the orders of Ni/RZ < Ni/SPZ < Ni/IPZ. Consequently, Ni/RZ and Ni/SPZ show lower dehydrogenation activity than Ni/IPZ, but the more abundant lattice oxygen species promote the gasification of carbonaceous deposits. Therefore, the shape design of the carriers provides a new perspective in mediating the catalytic performance of Ni/ ZrO 2 in the reforming reaction.

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Production of syngas via glycerol dry reforming on Ni catalysts supported on mesoporous nanocrystalline Al2O3

Cited by 52 publications

References 52 publications

Dry Reforming of Ethanol and Glycerol: Mini-Review

Dry Reforming of Ethanol and Glycerol: Mini-Review

Glycerol valorization: conversion to lactic acid by heterogeneous catalysis and separation by ion exchange chromatography

Nickel‐Catalyzed Dry Reforming of Methane via Modulating the Zirconia Shapes

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