Hydrogen production via the glycerol steam reforming reaction over nickel supported on alumina and lanthana-alumina catalysts

Charisiou, Nikolaos D.; Siakavelas, Georgios I.; Papageridis, Kyriakos N.; Baklavaridis, Apostolos; Tzounis, Lazaros; Polychronopoulou, Kyriaki; Goula, Maria A.

doi:10.1016/j.ijhydene.2017.04.048

Cited by 109 publications

(53 citation statements)

References 137 publications

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“…The multi-point Brunauer-Emmet-Teller (BET) method, in the relative pressure range 0.05 < P/P 0 < 0.20, and the BJH theory were used for the calculation of total specific surface area (SSA) and pore size distribution (PSD), respectively. Additional information on samples preconditioning can be found in Charisiou et al (2017).…”

Section: Catalyst Characterizationmentioning

confidence: 99%

The Effect of WO3 Modification of ZrO2 Support on the Ni-Catalyzed Dry Reforming of Biogas Reaction for Syngas Production

Charisiou

Siakavelas

Papageridis

et al. 2017

Front. Environ. Sci.

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The time-on-stream catalytic performance and stability of 8 wt. % Ni catalyst supported on two commercially available catalytic supports, ZrO 2 and 15 wt.% WO 3 -ZrO 2 , was investigated under the biogas dry reforming reaction for syngas production, at 750 • C and a biogas quality equal to CH 4 /CO 2 = 1.5, that represents a common concentration of real biogas. A number of analytical techniques such as N 2 adsorption/desorption (BET method), XRD, H 2 -TPR, NH 3 -and CO 2 -TPD, SEM, ICP, thermal analysis (TGA/DTG) and Raman spectroscopy were used in order to determine textural, structural and other physicochemical properties of the catalytic materials, and the type of carbon deposited on the catalytic surface of spent samples. These techniques were used in an attempt to understand better the effects of WO 3 -induced modifications on the catalyst morphology, physicochemical properties and catalytic performance. Although Ni dispersion and reducibility characteristics were found superior on the modified Ni/WZr sample than that on Ni/Zr, its dry reforming of methane (DRM) performance was inferior; a result attributed to the enhanced acidity and complete loss of the basicity recorded on this catalyst, an effect that competes and finally overshadows the benefits of the other superior properties. Raman studies revealed that the degree of graphitization decreases with the insertion of WO 3 in the crystalline structure of the ZrO 2 support, as the I D /I G peak intensity ratio is 1.03 for the Ni/Zr and 1.29 for the Ni/WZr catalyst.

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Section: Catalyst Characterizationmentioning

confidence: 99%

The Effect of WO3 Modification of ZrO2 Support on the Ni-Catalyzed Dry Reforming of Biogas Reaction for Syngas Production

Charisiou

Siakavelas

Papageridis

et al. 2017

Front. Environ. Sci.

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“…% Au/Al 2 O 3 . According to the IUPAC classification, the obvious type IV isotherms are observed over all of the samples, which are the characteristics of the mesopores . A hysteresis loop is observed between the adsorption and desorption isotherms, indicating that capillary condensation takes place in the mesopores .…”

Section: Resultsmentioning

confidence: 99%

Structure‐Activity Relationships of Au/Al₂O₃ Catalyst for the Selective Oxidative Esterification of 1,3‐Propanediol and Methanol

et al. 2019

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1.5 wt. % Au/Al2O3 catalysts were prepared using the deposition‐precipitation or colloid‐deposition method and calcined at different temperatures for the selective oxidative esterification reaction of 1,3‐propanediol and methanol to form methyl 3‐hydroxypropionate (3‐HPM). The catalysts were characterized by nitrogen adsorption, transmission electron microscopy (TEM), X‐ray diffraction (XRD), UV‐Vis diffuse reflectance spectroscopy, X‐ray photoelectron spectra (XPS), CO2 temperature‐programmed desorption (CO2‐TPD) and NH3 temperature‐programmed desorption (NH3‐TPD). The effect of the calcination temperature of the catalyst prepared by the deposition‐precipitation method on the catalytic performance for the selective oxidative esterification of 1,3‐propanediol was studied. The results showed that the conversion of 1,3‐propanediol and the selectivity of 3‐HPM increased at first and then decreased with the increase of the calcination temperature of catalyst. The highest conversion of 1,3‐propanediol and selectivity of 3‐HPM at the optimal calcination temperature of 350 °C were 92.0% and 88.5%, respectively. Considering the effects of preparation method and calcination temperature, it could be concluded that the metallic Au nanoparticles with appropriate particle size in coordination with the suitable amount of weak and middle acid and base sites, were favorable to the oxidative esterification of 1,3‐propanediol and methanol to 3‐HPM. Moreover, we found that the 1.5 wt. % Au/Al2O3 catalyst could be effectively recovered without obvious decline of the catalytic properties.

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“…From this research can be concluded the best metal activity is CoNi > Ni > Co. The Co/ZSM-5 catalyst produces the lowest hydrogen yield because there was a carbon formation on the active site of the catalyst and catalyst sintering [1,2]. By the coke formation on the surface of the catalyst, it can trigger the formation of carbon dioxide and carbon monoxide so the hydrogen yield becomes low.…”

Section: Hydrogen Productionmentioning

confidence: 93%

“…In the production of biodiesel produced glycerol as by product. The production of 10 kg biodiesel can produce 1 kg of glycerol or 10% by weight [2], so by increasing production of biodiesel the amount of glycerol product also increases.…”

Section: Introductionmentioning

confidence: 99%

Synthesis and Characterization of Co/Ni/CoNi-ZSM-5 Catalyst for Hydrogen Production

et al. 2018

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Abstract. Nickel is commonly used as a catalyst in hydrogen production. However, the use of nickel catalysts in the steam reforming process has the disadvantage of coke formation and high cost. Therefore, in this research, Ni/ZSM-5 catalyst synthesis was used to reduce production cost and an addition of cobalt (Co) metal to avoid coke formation. The method consists of a synthesis of ZSM-5 catalyst using hydrothermal process. Furthermore, the crystalline product was impregnated with the metal cobalt, nickel and combination of cobalt-nickel as much as 2% by weight metal/weight of the catalyst. Then the XRD and EDX characterization of Co/ZSM-5, Ni/ZSM-5, and CoNi/ZSM-5 was done followed by catalytic testing in the production of hydrogen from glycerol using steam reforming process. From XRD characterization results showed that Co/ZSM-5 catalyst has a crystallinity of 78.69%, Ni/ZSM-5 catalyst has 70.04% crystallinity and CoNi/ZSM-5 catalyst has 76.99% crystallinity. Catalytic testing on hydrogen production showed that CoNi/ZSM-5 catalyst produced the highest hydrogen concentration of 1,756.33 ppm while Ni/ZSM-5 catalyst produces 1,240 ppm and Co/ZSM-5 catalyst produces 491 ppm.

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Hydrogen production via the glycerol steam reforming reaction over nickel supported on alumina and lanthana-alumina catalysts

Cited by 109 publications

References 137 publications

The Effect of WO3 Modification of ZrO2 Support on the Ni-Catalyzed Dry Reforming of Biogas Reaction for Syngas Production

The Effect of WO3 Modification of ZrO2 Support on the Ni-Catalyzed Dry Reforming of Biogas Reaction for Syngas Production

Structure‐Activity Relationships of Au/Al₂O₃ Catalyst for the Selective Oxidative Esterification of 1,3‐Propanediol and Methanol

Synthesis and Characterization of Co/Ni/CoNi-ZSM-5 Catalyst for Hydrogen Production

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Hydrogen production via the glycerol steam reforming reaction over nickel supported on alumina and lanthana-alumina catalysts

Cited by 109 publications

References 137 publications

The Effect of WO3 Modification of ZrO2 Support on the Ni-Catalyzed Dry Reforming of Biogas Reaction for Syngas Production

The Effect of WO3 Modification of ZrO2 Support on the Ni-Catalyzed Dry Reforming of Biogas Reaction for Syngas Production

Structure‐Activity Relationships of Au/Al2O3 Catalyst for the Selective Oxidative Esterification of 1,3‐Propanediol and Methanol

Synthesis and Characterization of Co/Ni/CoNi-ZSM-5 Catalyst for Hydrogen Production

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Structure‐Activity Relationships of Au/Al₂O₃ Catalyst for the Selective Oxidative Esterification of 1,3‐Propanediol and Methanol