Production of hydrogen by steam reforming of glycerin over alumina-supported metal catalysts

Adhikari, Sushil; Fernando, Sandun; Haryanto, Agus

doi:10.1016/j.cattod.2006.09.038

Cited by 205 publications

(139 citation statements)

References 27 publications

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“…Zhang et al (2007) produced H 2 through the glycerol steam reforming over ceria-supported metal catalysts and found that a glycerol conversion of 100% could be achieved at 400C. Adhikari et al (2007b) studied steam reforming of glycerol using an alumina-supported metal catalyst over a range of conditions and showed that, at high temperatures, high gas yield was reached and selectivity of up to 70% was obtained. Steam reforming of glycerol was evaluated on Ni/CeO 2 , Ni/MgO, and Ni/TiO 2 catalysts (Hirai, et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

“…To date, although there have been a few studies on the use of catalysts active for methane and/or ethanol steam reforming such as Ni-based catalysts for steam reforming of glycerol (Adhikari, et al, 2007a;2007b and2008;Czernik, et al, 2002;Douette, et al, 2007;Hirai, et al, 2005;Zhang, et al, 2007), little has been found in the literature on glycerol steam reforming with in-situ CO 2 removal. This forms the main motivation for carrying this study on the use of a commercial Ni-based catalyst and a calcined dolomite sorbent to investigate the feasibility of sorption enhanced steam reforming of glycerol for hydrogen production.…”

Section: Introductionmentioning

confidence: 99%

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Hydrogen production by sorption-enhanced steam reforming of glycerol

Dou

Dupont

Rickett

et al. 2009

Bioresource Technology

171

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Catalytic steam reforming of glycerol for H 2 production has been evaluated experimentally in a continuous flow fixed-bed reactor. The experiments were carried out under atmospheric pressure within a temperature range of 400-700C. A commercial Ni-based catalyst and a dolomite sorbent were used for the steam reforming reactions and in-situ CO 2 removal. The product gases were measured by online gas analyzers. The results show that H 2 productivity is greatly increased with increasing temperature and the formation of methane by-product becomes negligible above 500C. The results suggest an optimal temperature of ~500C for the glycerol steam reforming with in-situ CO 2 removal using calcined dolomite as the sorbent, at which the CO 2 breakthrough time is longest and the H 2 purity is highest. The * Author to whom correspondence should be addressed. Tel: 44 -113-3432503; Fax: 44 -113-2467310, v.dupont@leeds.ac.uk. 2 shrinking core-model and the 1D diffusion model describe well the CO 2 removal under the conditions of this work.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Hydrogen production by sorption-enhanced steam reforming of glycerol

Dou

Dupont

Rickett

et al. 2009

Bioresource Technology

171

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“…Beside that, glycerol can be degraded into other compounds that have economic value as a fuel that is hydrogen (Byrd et al, 2008) or methanol (Tsukuda et al, 2007) and other chemical products that have added value such as acrolein (Wang et al, 2009), propane (Murata et al, 2008), and lactic acid (Yuksel et al, 2009) to degrade glycerol. The degradation of glycerol can be done in various processes such as pyrolysis (Vallyapan et al, 2008), steam reforming (Adhikari et al, 2007), and catalytic hydrogenation (Murata et al, 2008). Vol.…”

Section: Introductionmentioning

confidence: 99%

The Pyrolysis of Glycerol Using Microwave for the Production of Hydrogen

Qadariyah¹,

Mahfud²,

Prihatini³

et al. 2015

MAS

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The purpose of this research was to study pyrolysis of glycerol to produce hydrogen using microwave. The use of microwave aimed to produce high temperatures, because pyrolysis require high temperature.The effect of kind of catalyst and microwave power were studied. The catalyst was activated carbon and Ni/HZSM-5.The catalyst of activated carbon was ready to use, whereas Ni/HZSM-5 catalyst was obtained by ion exchange from Na-ZSM-5 with NH 4 Cl and then HZSM-5 was impregnated with metal solution of Ni (NO 3 ) 2 .6 H 2 O. Experiments were conducted by mixing catalyst in the reactor together with glycerol solution of 10% (weight percent) as much as 100 ml. Reactor was made from pyrex and mounted on microwave equipped with a thermocouple. And then, reactor was heated on power of 400-700 Watt during thirty minutes. The reaction produced gases and liquid to be analyzed by chromatography gas.The conclusion stated that microwave could pyrolysis glycerol into hydrogen. By product of this reaction were methanol, allyl alcohol, acrolein and unidentified products. The difference of catalyst produced different product as well. The pyrolysis of glycerol using activated carbon produced conversion of 60 %, while using catalysts Ni/HZSM-5 obtained conversion of 87 %. The reaction produced hydrogen gases was relatively small for both of catalysts that is minimum of 0,59% and maximum of 0,88%.

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“…The commercial viability of biodiesel is complicated because now the market has an absorption limit for growing supply of glycerin. It is necessary to find new applications for this product, [9][10][11] and value added to glycerin generated, otherwise this by-product could undermine the economic viability of any production process of biodiesel as renewable fuel. 5,7 The utilization of glycerol as a chemical platform represents an opportunity to obtain value added products from a highly functionalized and cheap raw material, and much research has been recently dedicated to find new chemical pathway for the glycerol transformation to value added products.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of polyesters from glycerol by-product of biodiesel production

Moura¹,

Nunes²,

Neto³

et al. 2012

J. Braz. Chem. Soc.

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resinas do tipo uréia/formaldeído ou fenol/formaldeído para melhorar as qualidades de aderência e resistência à umidade dessas resinas. Neste trabalho, foram sintetizados seis tipos de resinas derivadas do glicerol, sendo nomeadas GAA (glicerol/ácido adípico), GAAU (glicerol/ácido adípico/uréia), GAF (glicerol/ácido ftálico), GU (glicerol/uréia), GUF (glicerol/uréia/formaldeído) e GF (glicerol/formaldeído). As resinas derivadas dos ácidos carboxílicos tiveram melhor estabilidade térmica (até 350 ºC) do que as resinas derivadas do formaldeído (até 200 ºC). As massas moleculares médias das resinas foram determinadas por espectrometria de massas por tempo de vôo acoplada à ionização dessortiva de matriz por laser (MALDI-TOF MS) e cromatografia de permeação em gel (GPC), e encontram-se na faixa de 1800-2800 Da, sendo portanto, oligômeros, e os índices de polidispersão no intervalo de 1,3 a 1,8. As técnicas de ressonância magnética nuclear (NMR) de 1 H e 13 C foram usadas para identificar as estruturas das resinas.Glycerol, a by-product from biodiesel production can react with di-carboxylic organic acids, resulting in polyesters, and can be used in the composition of urea/formaldehyde or phenol/ formaldehyde resins to improve the qualities of adhesion and moisture resistance of them. In this work, six kinds of resins derived from glycerol, named as GAA (glycerol/adipic acid), GAAU (glycerol/adipic acid/urea), GAF (glycerol/phtalic acid), GU (glycerol/urea), GUF (glycerol/ urea/formaldehyde) and GF (glycerol/formaldehyde), were synthesized. The resins derived from carboxylic acids had better thermal stability (up to 350 ºC) than those derived from formaldehyde (up to 200 ºC). The average molecular weights of the resins were determined by matrix assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS) and gelpermeation chromatography (GPC), and are in the range of 1800-2800 Da, being oligomers, and the polydispersity indexes are in the range of 1.3 to 1.8. The 1 H and 13 C nuclear magnetic resonance (NMR) techniques were used to identify the structure of the resins.

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Production of hydrogen by steam reforming of glycerin over alumina-supported metal catalysts

Cited by 205 publications

References 27 publications

Hydrogen production by sorption-enhanced steam reforming of glycerol

Hydrogen production by sorption-enhanced steam reforming of glycerol

The Pyrolysis of Glycerol Using Microwave for the Production of Hydrogen

Synthesis and characterization of polyesters from glycerol by-product of biodiesel production

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