Recent advances in dry reforming of methane over Ni-based catalysts

Abdullah, Bawadi; Ghani, Nur Azeanni Abd; Vo, Dai‐Viet N.

doi:10.1016/j.jclepro.2017.05.176

Cited by 594 publications

(284 citation statements)

References 107 publications

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“…As is widely accepted in the literature, smaller-sized nickel metal precursors can help provide higher catalytic activity and stability and suppress carbon deposition (Usman et al, 2015;Bawadi et al, 2017). As an example, Han et al (2017) evaluated the dependence of the CH 4 or CO 2 turnover frequency on the Ni size and showed that Ni nano-particles of 2.6 nm had 4.1 times higher methane turnover frequency in comparison to Ni nano-particles with a size of 17.3 nm.…”

Section: Catalytic Performancementioning

confidence: 99%

“…Regarding carbon, it is generally accepted that its formation decreases with increasing temperature (carbon formation is thermodynamically favored at lower temperatures), however considerable amounts are formed even at temperatures as high as 800 • C (Nikoo and Amin, 2011;Jafarbegloo et al, 2015). It should also be noted that large metal ensembles stimulate coke formation (Bawadi et al, 2017).…”

Section: Catalytic Performancementioning

confidence: 99%

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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: Catalytic Performancementioning

confidence: 99%

Section: Catalytic Performancementioning

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 CO2/CH4 feed ratio also affect to equilibrium conversion of reagents and the syngas yields [50,51]. It has been reported that higher CO2/CH4 ratio resulted in higher CH4 conversion and H2 Many of recent studies on the catalytic DRM reaction have been performed at high temperature (>700 • C) and methane decomposition (Equation (2)) is a main pathway of carbon formation at such a high temperature whereas other reactions (Equations (3)- (5)) are less likely to proceed at the high temperature [24].…”

Section: Overview Of Drmmentioning

confidence: 99%

“…The CO 2 /CH 4 feed ratio also affect to equilibrium conversion of reagents and the syngas yields [50,51]. It has been reported that higher CO 2 /CH 4 ratio resulted in higher CH 4 conversion and H 2 production, but lower CO 2 conversion and CO generation at high temperature above 700 • C. Furthermore, the feed ratio influenced not only on the amount of deposited carbon, but also on the production of other side products, including water.…”

Section: Overview Of Drmmentioning

confidence: 99%

Recent Scientific Progress on Developing Supported Ni Catalysts for Dry (CO2) Reforming of Methane

Seo

2018

Catalysts

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Two major green house gases (CO 2 and CH 4 ) can be converted into useful synthetic gas (H 2 and CO) during dry reforming of methane (DRM) reaction, and a lot of scientific efforts has been made to develop efficient catalysts for dry reforming of methane (DRM). Noble metal-based catalysts can effectively assist DRM reaction, however they are not economically viable. Alternatively, non-noble based catalysts have been studied so far, and supported Ni catalysts have been considered as a promising candidate for DRM catalyst. Main drawback of Ni catalysts is its catalytic instability under operating conditions of DRM (>700 • C). Recently, it has been demonstrated that the appropriate choice of metal-oxide supports can address this issue since the chemical and physical of metal-oxide supports can prevent coke formation and stabilize the small Ni nanoparticles under harsh conditions of DRM operation. This mini-review covers the recent scientific findings on the development of supported Ni catalysts for DRM reaction, including the synthetic methods of supported Ni nanoparticles with high sintering resistance.

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“…The DRM reaction utilizes two significant greenhouse gases (CH 4 and CO 2 ) to produce a cleaner form of energy carrier (i.e., syngas) that could be transformed into hydrogen fuel or valuable chemicals [5].…”

Section: Dry Reforming Of Methane (Drm)mentioning

confidence: 99%

Recent Advances in Supported Metal Catalysts for Syngas Production from Methane

2018

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Abstract:Over the past few years, great attention is paid to syngas production processes from different resources especially from abundant sources, such as methane. This review of the literature is intended for syngas production from methane through the dry reforming (DRM) and the steam reforming of methane (SRM). The catalyst development for DRM and SRM represents the key factor to realize a commercial application through the utilization of more efficient catalytic systems. Due to the enormous amount of published literature in this field, the current work is mainly dedicated to the most recent achievements in the metal-oxide catalyst development for DRM and SRM in the past five years. Ni-based supported catalysts are considered the most widely used catalysts for DRM and SRM, which are commercially available; hence, this review has focused on the recent advancements achieved in Ni catalysts with special focus on the various attempts to address the catalyst deactivation challenge in both DRM and SRM applications. Furthermore, other catalytic systems, including Co-based catalysts, noble metals (Pt, Rh, Ru, and Ir), and bimetallic systems have been included in this literature review to understand the observed improvements in the catalytic activities and coke suppression property of these catalysts.

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Recent advances in dry reforming of methane over Ni-based catalysts

Cited by 594 publications

References 107 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

Recent Scientific Progress on Developing Supported Ni Catalysts for Dry (CO2) Reforming of Methane

Recent Advances in Supported Metal Catalysts for Syngas Production from Methane

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