Preparation of mesoporous nanostructure NiO–MgO–SiO2 catalysts for syngas production via propane steam reforming

Barzegari, F.; Kazemeini, Mohammad; Farhadi, Fatola; Rezaei, Mehran; Keshavarz, Ahmad Reza

doi:10.1016/j.ijhydene.2020.01.007

Cited by 23 publications

(8 citation statements)

References 77 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, considering some drawbacks like Ni-sintering and carbon deposition maybe by hotspots and poor uniform temperature profile of pelletized catalysts bed, persuade researchers to modify catalysts structure [8][9][10][11][12]. Therefore, any attempt to fabricate novel catalysts for lowering carbon deposition, good heat transfer, decrease energy consumption, high thermal stability, high mechanical strength and increase lifetime are valuable [13][14][15]. Open-cell metal foams have a special set of materials properties such as low density, high thermal conductivity, ductility, resilience to thermal shock resistance, fluid permeability, and high surface area [16,17].…”

Section: Introductionmentioning

confidence: 99%

NiO-Ni-Al2O3(γ) Nanocatalyst by Pulse Electrocodeposition Over Ni Open-cell Foam for Methane Reforming

Zafardoagoo,

Sadrnezhaad,

Mostaghimi

2023

IJE

View full text Add to dashboard Cite

Global warming persuades researchers to improve the effectiveness of renewable energy technologies, such as H2 production by methane steam reforming (MSR) an endothermic process. Herein, a nanocatalyst based on open-cell nickel foam 40 (pore per inch) with high thermal conductivity was prepared. The nanocatalyst was synthesized with a chemical stepwise synthesis approach, chemical pretreatment, pulsed electrocodeposition of Ni-Al2O3(γ) nanoparticles, and calcination. Measurements of thermal diffusivity(α) with flash xenon technique gained 4.41×10 -6 m 2 s -1 and values of specific heat capacity, Cp, by differential scanning calorimetry (DSC) and thermal conductivity(λ) enhanced by 65% in temperature range of 150 to 550°C in Ni-alumina(γ) foam nanocatalyst. Furthermore, characterization and tests for comparing nickel foam and Ni-alumina(γ) foam indicated that the hardness improved from 145 Vickers hardness (HV) to 547 HV and compression strength increased from 1.1 MPa to 5MPa and specific surface area (SBET) from 1.48 m 2 g -1 to 48 m 2 g -1 . XRD (x-ray diffraction) analysis showed NiO and NiAl2O4 in the structure. The interface between the catalytic component (NiAl2O4), and nickel affected the catalytic ability for MSR, and the efficiency gained at low tempreture 500 °C was the same as reported at 720°C by other investigations.

show abstract

Section: Introductionmentioning

confidence: 99%

NiO-Ni-Al2O3(γ) Nanocatalyst by Pulse Electrocodeposition Over Ni Open-cell Foam for Methane Reforming

Zafardoagoo,

Sadrnezhaad,

Mostaghimi

2023

IJE

View full text Add to dashboard Cite

show abstract

“…Some of these are catalytic studies on the conversion of CO 2 to CO [ 15 ]. Al 2 O 3 [ 16 ], MgO [ 17 ], SiO 2 [ 18 ], TiO 2 , ZnO [ 19 , 20 ], CeO 2 [ 21 ] and SnO 2 [ 22 ] etc. as the metal oxides are used in catalytic pyrolysis studies.…”

Section: Introductionmentioning

confidence: 99%

Catalytic pyrolysis of olive oil residue to produce synthesis gas: the effect of bulk and nano metal oxides

KARADAĞ¹,

BİLGE²,

DONAR³

et al. 2022

Turkish Journal of Chemistry

View full text Add to dashboard Cite

In this study, olive oil residue (OR) biomass was pyrolyzed in the presence of bulk MgO (B-MgO), nano-MgO (N-MgO), bulk ZnO (B-ZnO)), and nano-ZnO (N- ZnO) metal oxides at different temperatures (400, 600, and 800 ºC). Significant results were obtained in terms of synthesis gas formation and CO 2 reduction. The efficiency distribution of the products obtained as a result of the metal oxide-based pyrolysis process and the effects of metal oxides were examined in detail. Nanometal oxides were synthesized by the hydrothermal method. Characterization of metal oxides was carried out by Brunauer–Emmett–Teller (BET), x-ray powder diffraction (XRD) analysis and scanning-electron microscopy-energy dispersive x-ray (SEM-EDX) techniques. The metal concentration of OR biomass was detected via the x-ray fluorescence (XRF) technique. Tar product properties were evaluated by gas chromatography-mass spectrometry (GC-MS) and Fourier transform-infrared spectroscopy (FT-IR) analyzes. Analysis results show that pyrolytic tar is very similar to diesel and gasoline as it contains significant concentrations of aliphatic and aromatic hydrocarbons in composition. In addition, the composition of noncondensable gaseous products was determined by micro gas chromatography (micro-GC) analysis.

show abstract

“…Currently, steam reforming of light hydrocarbons, including natural gas, ethane, propane, butane and liquified petroleum gas (LPG), are considered among the most promising and economical routes for hydrogen production [ 7 ]. Propane, which is the main component of LPG, has many advantages such as high energy density, compressibility to a transportable liquid at normal temperature and well-developed infrastructure which enable its use worldwide [ 8 , 9 , 10 ]. Moreover, propane can be stored and transferred as LPG through a wide distribution network or in high pressure cylinders in order to be supplied in remote places (e.g., agricultural, inaccessible or camping areas) or for domestic uses (e.g., households) [ 3 , 7 ].…”

Section: Introductionmentioning

confidence: 99%

“…Noble metals can be replaced by nickel, which is less expensive and able to convert propane with high H 2 yields. However, Ni is susceptible to coke formation and particles sintering considered to be responsible for catalyst deactivation [ 5 , 10 , 17 ]. The lifetime of Ni-based catalysts can be improved by optimization of the reaction conditions, catalyst promotion, improvement of the catalyst synthesis method as well as by the proper selection of the support [ 3 , 9 , 10 , 12 , 16 , 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

Support Effects on the Activity of Ni Catalysts for the Propane Steam Reforming Reaction

2021

View full text Add to dashboard Cite

The catalytic performance of supported Ni catalysts for the propane steam reforming reaction was investigated with respect to the nature of the support. It was found that Ni is much more active when supported on ZrO2 or YSZ compared to TiO2, whereas Al2O3- and CeO2-supported catalysts exhibit intermediate performance. The turnover frequency (TOF) of C3H8 conversion increases by more than one order of magnitude in the order Ni/TiO2 < Ni/CeO2 < Ni/Al2O3 < Ni/YSZ < Ni/ZrO2, accompanied by a parallel increase of the selectivity toward the intermediate methane produced. In situ FTIR experiments indicate that CHx species produced via the dissociative adsorption of propane are the key reaction intermediates, with their hydrogenation to CH4 and/or conversion to formates and, eventually, to CO, being favored over the most active Ni/ZrO2 catalyst. Long term stability test showed that Ni/ZrO2 exhibits excellent stability for more than 30 h on stream and thus, it can be considered as a suitable catalyst for the production of H2 via propane steam reforming.

show abstract

Preparation of mesoporous nanostructure NiO–MgO–SiO2 catalysts for syngas production via propane steam reforming

Cited by 23 publications

References 77 publications

NiO-Ni-Al2O3(γ) Nanocatalyst by Pulse Electrocodeposition Over Ni Open-cell Foam for Methane Reforming

NiO-Ni-Al2O3(γ) Nanocatalyst by Pulse Electrocodeposition Over Ni Open-cell Foam for Methane Reforming

Catalytic pyrolysis of olive oil residue to produce synthesis gas: the effect of bulk and nano metal oxides

Support Effects on the Activity of Ni Catalysts for the Propane Steam Reforming Reaction

Contact Info

Product

Resources

About