Ni–Al2O3 catalysts prepared by solution combustion method for syngas methanation

Zhao, Anmin; Ying, Weiyong; Zhang, Haitao; Ma, Hongfang; Fang, Dingye

doi:10.1016/j.catcom.2011.10.010

Cited by 280 publications

(152 citation statements)

References 22 publications

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“…There were three reduction peaks of NiO species observed in the H2-TPR profile, which could be classified into three types: free nickel oxides possessing a weak interaction with the support (350-500 °C, α-type); NiO species that have a stronger interaction with the support (520-700 °C, β-type); the reduction peaks of MgNiO2 solid solution (730-850 °C,γ-type) [10,21]. The first two reduction temperatures of NiO/VMT-LDO were centered at 338 °C and 491 °C, respectively.…”

Section: Tpr Characterization Of Catalystsmentioning

confidence: 99%

Two-Dimensional Layered Double Hydroxide Derived from Vermiculite Waste Water Supported Highly Dispersed Ni Nanoparticles for CO Methanation

Zhu

Tian

et al. 2017

Catalysts

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Expanded multilayered vermiculite (VMT) was successfully used as catalyst support and Ni/VMT synthesized by microwave irradiation assisted synthesis (MIAS) exhibited excellent performance in our previous work. We also developed a two-dimensional porous SiO 2 nanomesh (2D VMT-SiO 2 ) by mixed-acid etching of VMT. Compared with three-dimensional (3D) MCM-41, 2D VMT-SiO 2 as a catalyst support provided a superior position for implantation of NiO species and the as-obtained catalyst exhibited excellent performance. In this paper, we successfully synthesized a layered double hydroxide (LDH) using the spent liquor after mixed-acid etching of VMT, which mainly contained Mg 2+ and Al 3+ . The as-calcined layered double oxide (LDO) was used as a catalyst support for CO methanation. Compared with Ni/MgAl-LDO, Ni/VMT-LDO had smaller active component particles; therefore, in this study, it exhibited excellent catalytic performance over the whole temperature range of 250-500 • C. Ni/VMT-LDO achieved the best activity with 87.88% CO conversion, 89.97% CH 4 selectivity, and 12.47 × 10 −2 ·s −1 turn over frequency (TOF) at 400 • C under a gas hourly space velocity of 20,000 mL/g/h. This study demonstrated that VMT-LDO as a catalyst support provided an efficient way to develop high-performance catalysts for synthetic natural gas (SNG) from syngas.

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Section: Tpr Characterization Of Catalystsmentioning

confidence: 99%

Two-Dimensional Layered Double Hydroxide Derived from Vermiculite Waste Water Supported Highly Dispersed Ni Nanoparticles for CO Methanation

Zhu

Tian

et al. 2017

Catalysts

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“…Many studies have focused on improving the stability of nickel catalysts by varying support materials, promoters, and preparation methods [7][8][9][10][11][12][13]. Gao et al prepared barium hexaaluminate (BHA) supported nickel catalyst for CO methanation and found Ni/BHA was more stable and more resistant to carbon deposition than Ni/Al 2 O 3 [8].…”

Section: Introductionmentioning

confidence: 99%

A comparison of Ni/SiC and Ni/Al2O3 catalyzed total methanation for production of synthetic natural gas

Zhang

Sun

Peng

et al. 2013

Applied Catalysis A: General

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“…The patterns were quite similar because of consistent preparation procedures. There could also be a NiO phase formed but not detected in addition to the NiAl2O4 spinel phase, which was reported (Zhao et al 2012).…”

Section: Catalyst Characterizationmentioning

confidence: 75%

Effect of Coal Ash on the Steam Reforming of Simulated Bio-oil for Hydrogen Production over Ni/γ-Al2O3

Zhang¹,

Wang²,

Chen³

et al. 2016

BioResources

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An improved system for hydrogen production by the steam reforming of simulated bio-oil was developed. The coal ash was packed in front of nickel-based catalysts, acting as a guard catalyst. The model compounds passed through coal ash and were preliminarily reformed to smaller molecular intermediates containing more CO and CH4, which were then further reformed over the following nickel-reforming catalyst. The improved reaction system succeeded in effectively converting the complex simulated bio-oil into hydrogen and exhibited high activity. For 15 wt.% Ni/γ-Al2O3 catalyst with coal ash packing, the catalyst lifetime was extended to 8 h, with simulated bio-oil almost completely converted into hydrogen. In addition, coke deposition was suppressed.

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Ni–Al2O3 catalysts prepared by solution combustion method for syngas methanation

Cited by 280 publications

References 22 publications

Two-Dimensional Layered Double Hydroxide Derived from Vermiculite Waste Water Supported Highly Dispersed Ni Nanoparticles for CO Methanation

Two-Dimensional Layered Double Hydroxide Derived from Vermiculite Waste Water Supported Highly Dispersed Ni Nanoparticles for CO Methanation

A comparison of Ni/SiC and Ni/Al2O3 catalyzed total methanation for production of synthetic natural gas

Effect of Coal Ash on the Steam Reforming of Simulated Bio-oil for Hydrogen Production over Ni/γ-Al2O3

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