Synthesis, characterization and application of Ni-based oxygen carrier supported on novel yttrium-incorporated SBA-16 for efficient hydrogen production via chemical looping steam methane reforming

Daneshmand-Jahromi, Sanaz; Meshksar, Maryam; Hafizi, Ali; Rahimpour, Mohammad Reza

doi:10.1016/j.jtice.2018.04.028

Cited by 44 publications

(7 citation statements)

References 32 publications

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“…Hydrogen, as the lightest element in the world, contains a tremendous amount of energy that can be used as an alternative to petroleum [10][11][12][13][14]. The most prevalent processes for hydrogen production are DRM, steam reforming of methane (SRM) and partial oxidation of methane (POM) [15].…”

Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Promoted Nickel–Cobalt Bimetallic Catalysts for Biogas Reforming

et al. 2021

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The catalytic performance of Ni, Co, and Ni-Co-based catalysts on Al 2 O 3 support are investigated in the dry methane reforming reaction. Besides, the influence of La or Y promoters on catalytic activity and structural properties of synthesized catalysts are examined in this paper. The prepared catalysts are characterized using N 2 Adsorption/Desorption, FESEM, EDX, and XRD techniques. Higher average CH 4 and CO 2 conversions, as well as hydrogen yield, are obtained using Ni-Co catalyst with equal weight ratios. This could be the result of better dispersion of active sites according to the FESEM images and thus higher BET surface area of this catalyst compared with other un-promoted ones. Although the addition of La does not enhance the catalytic activity and structural properties of the 9Ni-9Co/Al 2 O 3 sample, the presence of Y 2 O 3 particles has a positive effect on both mentioned catalyst features. The maximum CH 4 conversion of 99.39%, CO 2 conversion of 92.38%, H 2 yield of 86.20% and H 2 /CO molar ratio of 1.50 are achieved using 5Y-9Ni-9Co/Al 2 O 3 at 700 °C. Besides, this catalyst shows lower deposited coke and higher stability compared with other promoted/un-promoted catalysts. The comparison between the activity of 5Y-9Ni-9Co/Al 2 O 3 and industrial 18%Ni/Al 2 O 3 during 11 h DRM shows that although 18%Ni/ Al 2 O 3 has higher conversions at first 9 h, its activity is decreased more than 5Y-9Ni-9Co/Al 2 O 3 due to the coke deposition.

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Section: Introductionmentioning

confidence: 99%

RETRACTED ARTICLE: Promoted Nickel–Cobalt Bimetallic Catalysts for Biogas Reforming

et al. 2021

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“…The CH 4 conversion of NiO/SiO 2 and NiO/TiO 2 suffers a rapid drop after 2 h of CH 4 /steam redox, although the initial CH 4 conversion is below 50%. , NiO/NiAl 2 O 4 demonstrates a similar high initial activity with NiO/Al 2 O 3 , but high deactivation is unavoidable . Novel yttrium-incorporated SBA-16 supported Ni-based OCs are prepared and evaluated for hydrogen production, and the results show that the introduction of the yttrium promoter promotes the dispersion of NiO and inhibits the NiO agglomeration, owing to the higher NiO–support interaction. − The highest average CH 4 conversion at 650 °C is 99.6%, and the average H 2 yield is 85.4%, when supporting 25.5 wt % NiO …”

Section: Chemical Looping Reforming Of Methanementioning

confidence: 99%

“…229−231 The highest average CH 4 conversion at 650 °C is 99.6%, and the average H 2 yield is 85.4%, when supporting 25.5 wt % NiO. 229 2.3. Chemical Looping Dry Reforming of Methane.…”

Section: Chemical Looping Reforming Of Methanementioning

confidence: 99%

“…It is known that metallic Ni is used as a catalyst in most steam methane reforming and water–gas shift reactions. , Because Ni-based oxide cannot be able to split water, the well-known chemical looping steam methane reforming process using methane as a reducing agent (first step) and water as an oxidant (second step) is not applicable to Ni-based OCs. Daneshmand-Jahromi et al, − de Diego et al, and Silvester et al ,, report a different chemical looping steam methane reforming process for hydrogen production using Ni-based OCs. In the process that they called chemical looping steam methane reforming, steam is added to the fuel reactor to shift the reaction product to H 2 and air is used to reoxidize the reduced OC in the air reactor.…”

Section: Chemical Looping Reforming Of Methanementioning

confidence: 99%

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Chemical Looping Conversion of Gaseous and Liquid Fuels for Chemical Production: A Review

Xing-yun

et al. 2020

Energy Fuels

104

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Chemical looping technology enables achievement of the simultaneous feedstock conversion and product separation without additional processes via circulating solid intermediates (so-called oxygen/nitrogen carriers) in a redox process, which contributes to the improvement of product selectivity and energy conservation. In general, methane, CO 2 , N 2 , ethane, propane, ethanol, and glycerol are typical gaseous and liquid fuels for producing syngas, pure H 2 , pure CO, NH 3 , ethylene, and propylene via the chemical looping process. Central to this technology is the solid intermediates that act as reservoirs for storing and releasing O or N in multiple sub-reactions to close the loop. This work comprehensively describes the chemical looping conversion of gaseous or liquid fuels for chemical production, covering chemical looping reforming of methane, chemical looping oxidative coupling of methane, chemical looping reforming of liquid fuels, chemical looping oxidative dehydrogenation, and chemical looping ammonia synthesis technologies. Specifically, this review mainly focuses on the development of oxygen/nitrogen carrier materials, especially the related research in China. The effects of composition, structure, and morphology on the performance and related reaction mechanisms are discussed.

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“…The highest contributor to global warming is carbon dioxide, which is emitted when natural gas, oil, coal, and other fossil fuels are burnt. Among the current technologies for CO 2 capture, chemical looping (CL) is a particularly promising candidate with inherent separation of CO 2 . − CL technology has substantial potential to be the cheapest commercial technology for simultaneous production of energy and also industrially significant commodities such as hydrogen via chemical looping combustion, chemical looping reforming (CLR) alongside integral CO 2 separation. − In the CLC technologies, the oxygen carrier is applied as a means of providing oxygen to fuels, and it is used for heat and also high-concentration CO 2 generation. , …”

Section: Introductionmentioning

confidence: 99%

Preparation of Aerogel-Supported Copper Oxide for the Methane Chemical Looping Combustion (CLC) Process

Daneshmand-Jahromi

Karami

Mahinpey

2021

Ind. Eng. Chem. Res.

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The objective of this research is to investigate the effect of different aerogel supports on the stability of copper oxide during limited cycles of CH 4 chemical looping combustion (CLC) in a thermogravimetric analyzer (TGA). Supports proved to be significantly effective not only for the fuel utilization efficiency of CLC but also for the stability of the oxygen carrier (OC). The evaluation tests were performed by employing CuO/aerogel (zirconia, alumina, and silica) OCs synthesized utilizing a novel patented method. The results showed that the OC prepared using zirconia aerogel support had the highest activity over a medium-temperature range (550−800 °C). The OCs were characterized using different methods, including surface area and pore analysis, TGA, X-ray diffraction (XRD), scanning electron microscope (SEM), and dynamic light scattering analysis. The results demonstrated that the proper support can stabilize Cu dispersion, intensify the redox degree of OCs at high temperatures, and strengthen the distribution of Cu on the surface of the support.

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Synthesis, characterization and application of Ni-based oxygen carrier supported on novel yttrium-incorporated SBA-16 for efficient hydrogen production via chemical looping steam methane reforming

Cited by 44 publications

References 32 publications

RETRACTED ARTICLE: Promoted Nickel–Cobalt Bimetallic Catalysts for Biogas Reforming

RETRACTED ARTICLE: Promoted Nickel–Cobalt Bimetallic Catalysts for Biogas Reforming

Chemical Looping Conversion of Gaseous and Liquid Fuels for Chemical Production: A Review

Preparation of Aerogel-Supported Copper Oxide for the Methane Chemical Looping Combustion (CLC) Process

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