Glycerol Reforming for Hydrogen Production: A Review

Vaidya, Prakash D.; Rodrigues, Alı́rio E.

doi:10.1002/ceat.200900120

Cited by 250 publications

(129 citation statements)

References 39 publications

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“…Up to 40 STP mL of H 2 per mL of distillated OMW were obtained over the catalytic honeycomb Pt/CeLa (1% Pt w/w) at 973 K and 16,000 h -1 , which showed a very stable distribution of products in long term runs. An increase of the Pt load up to 2% w/w had a positive effect on product distribution, particularly on the suppression of CH 4 and C2eC3 hydrocarbons. Independent carbon mass balances obtained by COD and gas chromatography analyses showed 90e96% of reduction of the organic carbon present in distillated OMW.…”

Section: Discussionmentioning

confidence: 98%

Catalytic steam reforming of olive mill wastewater for hydrogen production

Casanovas

Galvis

Llorca

2015

International Journal of Hydrogen Energy

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Olive mill wastewater Catalytic honeycombsHydrogen production a b s t r a c t Catalytic honeycombs functionalized with lanthanum-stabilized ceria as catalytic support and impregnated with different metals (Rh, Ru, Pt, Pd and Ni) were prepared and tested for hydrogen production through the steam reforming of distillated, three-phase olive mill wastewater (OMW). Tests were carried out at atmospheric pressure, different temperatures (873e1023 K), and space velocities (4500e16,000 h -1 ) over catalytic honeycombs loaded with ca. 3 mg cm -2 of catalyst. The catalytic performance was evaluated in terms of hydrogen production, selectivity of gaseous products and stability for 24 h. The best results were obtained over Pt-and Rh-based catalytic systems. Chemical oxygen demand values were determined to quantify the total organic content of OMW and post-reaction condensate to quantify the extension of the reaction. Total organic contents were found to be 5.4 mg L -1 and 0.2e0.5 mg L -1 in OMW distillate and post-reaction condensate, respectively, which leads to a 90e96 % of organic content removal during the steam reforming process. Up to 40 STP mL of pure hydrogen per mL of distillated olive mill wastewater were produced over Pt/CeLa at 973 K and 16,000 h -1 . X-ray photoelectron spectroscopy analyses revealed carbon and calcium deposition during catalytic reaction.

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Section: Discussionmentioning

confidence: 98%

Catalytic steam reforming of olive mill wastewater for hydrogen production

Casanovas

Galvis

Llorca

2015

International Journal of Hydrogen Energy

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“…Nevertheless, glycerol APR was not significant, especially over the Pt and Cu catalysts, while in the presence of Ni, glycerol reforming became more pronounced. The latter was expected, as Ni catalysts are among the most efficient materials for glycerol APR, aiming at renewable hydrogen production [37].…”

Section: Catalytic Performance In the Ethanol Apr-glycerol Hydrodeoxymentioning

confidence: 98%

Catalytic Glycerol Hydrodeoxygenation under Inert Atmosphere: Ethanol as a Hydrogen Donor

Vasiliadou

Lemonidou

2014

Catalysts

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Glycerol hydrodeoxygenation to 1,2-propanediol (1,2-PDO) is a reaction of high interest. However, the need for hydrogen supply is a main drawback of the process. According to the concept investigated here, 1,2-propanediol is efficiently formed using bio-glycerol feedstock with H2 formed in situ via ethanol aqueous phase reforming. Ethanol is thought to be a promising H2 source, as it is alcohol that can be used instead of methanol for transesterification of oils and fats. The H2 generated is consumed in the tandem reaction of glycerol hydrodeoxygenation. The reaction cycle proceeds in liquid phase at 220-250 °C and 1.5-3.5 MPa initial N2 pressure for a 2 and 4-h reaction time. Pt-, Ni-and Cu-based catalysts have been synthesized, characterized and evaluated in the reaction. Among the materials tested, Pt/Fe2O3-Al2O3 exhibited the most promising performance in terms of 1,2-propanediol productivity, while reusability tests showed a stable behavior. Structural integrity and no formation of carbonaceous deposits were verified via Temperature Programmed Desorption of hydrogen (TPD-H2) and thermogravimetric analysis of the fresh and used Pt/FeAl catalyst. A study on the effect of various operating conditions (reaction time, temperature and pressure) indicated that in order to maximize 1,2-propanediol productivity and yield, milder reaction conditions should be applied. The highest 1,2-propanediol yield, 53% (1.1 g1,2-PDO gcat −1 ·h −1 ), was achieved at a lower reaction temperature of 220 °C. OPEN ACCESSCatalysts 2014, 4 398

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“…Vaidya and Rodrigues reviewed H 2 production from glycerol reforming over Ni, Pt and Ru catalysts [128]. The synthesis of H 2 and CO from glycerol has also been investigated over Pt-based catalysts [129].…”

Section: Reforming Of Glycerol To Valuable Chemicals By Catalysismentioning

confidence: 99%

Catalytic Technologies for Biodiesel Fuel Production and Utilization of Glycerol: A Review

et al. 2012

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More than 10 million tons of biodiesel fuel (BDF) have been produced in the world from the transesterification of vegetable oil with methanol by using acid catalysts (sulfuric acid, H 2 SO 4 ), alkaline catalysts (sodium hydroxide, NaOH or potassium hydroxide, KOH), solid catalysts and enzymes. Unfortunately, the price of BDF is still more expensive than that of petro diesel fuel due to the lack of a suitable raw material oil. Here, we review the best selection of BDF production systems including raw materials, catalysts and production technologies. In addition, glycerol formed as a by-product needs to be converted to useful chemicals to reduce the amount of glycerol waste. With this in mind, we have also reviewed some recent studies on the utilization of glycerol.

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Glycerol Reforming for Hydrogen Production: A Review

Cited by 250 publications

References 39 publications

Catalytic steam reforming of olive mill wastewater for hydrogen production

Catalytic steam reforming of olive mill wastewater for hydrogen production

Catalytic Glycerol Hydrodeoxygenation under Inert Atmosphere: Ethanol as a Hydrogen Donor

Catalytic Technologies for Biodiesel Fuel Production and Utilization of Glycerol: A Review

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