Preparation of Ni-based catalysts to produce hydrogen from glycerol by steam reforming process

Yurdakul, Merve; Ayas, Nezihe; Bizkarra, K.; Doukkali, M. El; Cambra, J.F.

doi:10.1016/j.ijhydene.2015.11.178

Cited by 55 publications

(19 citation statements)

References 15 publications

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“…Studies on the influence of supports, promoters, and reaction temperatures on glycerol steam reforming showed that the most suitable catalyst is Ni-Pd/Al 2 O 3 -ZrO 2 , specifically for processes conducted at 800 C, generating the highest hydrogen yield, 74%. [25] Iriondo et al [26] prepared a nickel-based catalyst supported on Zr-Al bimetals to catalyze a glycerol steam reforming reaction, finding that the introduction of zirconium weakened the interaction between nickel and support. Their result implies that the catalyst had more nickel active sites and a higher reduction capacity, thus promoting hydrogen yield.…”

Section: Introductionmentioning

confidence: 99%

Effect of Additives on Ni‐Based Catalysts for Hydrogen‐Enriched Production from Steam Reforming of Biomass

Wang

Zhang

et al. 2020

Energy Tech

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The catalytic steam reforming of biomass for hydrogen production is investigated in a fixed‐bed reactor. A suitable additive and precursor is found in various additives (cobalt, strontium, and lanthanum) and nickel salt precursors (nickel nitrate, nickel acetate, nickel chloride, and nickel sulfate). Synthesized samples are characterized by X‐ray diffraction (XRD), NH3 temperature‐programmed desorption (TPD), H2 temperature‐programmed reduction (TPR), and transmission electron microscopy (TEM). Results show that Co and La doping of the Ni/Al2O3 catalyst improves the dispersion of surface‐active particles and reduces the particle size, increasing H2 production. The hydrogen volume fraction of La‐modified catalysts with 10% Ni is 38.96%, which is higher than 30.39% for the unmodified Ni/Al2O3 catalyst. The lowest hydrogen yield of Ni–Sr/Al2O3 catalyst is 19.22%. This low catalytic activity is due to the reaction of Ni–Sr/Al2O3 with SiO2 found in biomass ash, which generates silicate without catalytic effect. The silicate melts and adheres to the catalyst surface at a high temperature, inhibiting the catalysis of nickel active sites. The maximum hydrogen yield obtained with nickel acetate as catalyst precursor is 51.41%, which is due to nickel acetate decomposing and forming more NiO in the amorphous state and improving the performance of catalyst.

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Section: Introductionmentioning

confidence: 99%

Effect of Additives on Ni‐Based Catalysts for Hydrogen‐Enriched Production from Steam Reforming of Biomass

Wang

Zhang

et al. 2020

Energy Tech

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“…Surface promotion of the support by rare-earth elements inhibits the growth of nickel crystallites, preventing the formation of large particles necessary for the formation of coke, and also complicates the reoxidation of metallic nickel during the reaction [16,17,18,19] Complex oxides with a perovskite structure in addition to high oxygen mobility have a number of additional unique properties. Due to this, they are sometimes called "replacement of noble metals" in the application to catalysis [20].…”

Section: Resultsmentioning

confidence: 99%

Synthesis and Study of Structural Properties of Composites Based on Ni-Ru for Steam Conversion of Ethanol

Naurzkulova

Massalimova

Shorayeva

et al. 2020

Series Chemistry and Technology

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Сatalyst precursors, substituted by rare-earth and transition metals, promoted with Ru nanoparticles using the modified Pechinimethod (Organic polymeric precursor) have been synthesized. To transform biofuel (ethanol) into hydrogen from the obtained active phases, three different methods were used to synthesize composites with the general formula [LaMn1-xBxO3 + δ / Ln1-yZryO2] (1: 1 by mass), B = Ni, Ru, Ln = Pr, Sm , Ce. Structural and surface properties of the obtained samples of complex oxides and composites were studied using the BET and XPA methods. The textural and structural characteristics of composites differing in the methods of their preparationare presented. Key words: perovskite, fluorite, composites, biomass, hydrogen.

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“…The highest hydrogen selectivity was 86% using Ni/Al 2 O 3 catalyst at a temperature condition of 692ºC [12]. In the Yurdakul et al [13] research, the highest yield was 74% using NiPd/Al 2 O 3 -ZrO 2 catalyst at operating temperature 800ºC.…”

Section: Introductionmentioning

confidence: 92%

“…The presence of Ni metal is capable of breaking the C-C bond on glycerol thereby increasing the yield of hydrogen produced. Zamzuri et al [12] and Yurdakul et al [13] performed hydrogen production using a combination of Al 2 O 3 , ZrO 2 , La 2 O 3 , olivine, SiO 2 and MgO catalysts. In their research used catalyst support in the form of metal Ni and Pd.…”

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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Preparation of Ni-based catalysts to produce hydrogen from glycerol by steam reforming process

Cited by 55 publications

References 15 publications

Effect of Additives on Ni‐Based Catalysts for Hydrogen‐Enriched Production from Steam Reforming of Biomass

Effect of Additives on Ni‐Based Catalysts for Hydrogen‐Enriched Production from Steam Reforming of Biomass

Synthesis and Study of Structural Properties of Composites Based on Ni-Ru for Steam Conversion of Ethanol

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

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