Catalyst design for dry reforming of methane: Analysis review

Aramouni, Nicolas Abdel Karim; Touma, Jad G.; Tarboush, Belal Abu; Zeaiter, Joseph; Ahmad, Mohammad Norazmi

doi:10.1016/j.rser.2017.09.076

Cited by 697 publications

(398 citation statements)

References 127 publications

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“…Those possible reactions were well documented previously by Wang et al [40] and Nikoo et al [39] and recently revisited in the review paper by Aramouni et al [41]. Among the possible side reactions, following 4 reactions (Equations (2)-(6) have been noticed as important ones by most of researchers, which are responsible for the carbon formation on catalysts surface during DRM reaction [39].…”

Section: Overview Of Drmmentioning

confidence: 66%

“…Some metal-oxides, such as CeO 2 and ZrO 2 , can provide their lattice oxygen to oxidize carbon atoms on Ni surface into carbon monooxide [55][56][57]. The oxidation of carbon species from the Ni surface can also proceed via an interaction with hydroxyl groups on the surface, but this process has been suggested only significant at low temperature (<800 • C) [41,44].…”

Section: Reaction Mechanism Of Drm Over Supported Ni Catalysts; Influmentioning

confidence: 99%

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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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Section: Overview Of Drmmentioning

confidence: 66%

Section: Reaction Mechanism Of Drm Over Supported Ni Catalysts; Influmentioning

confidence: 99%

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

Seo

2018

Catalysts

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“…The clearly enhanced CO 2 activation by La.Ni(CA)/Mg 1.3 AlO x .1000 in CH 4 ‐rich DRM might be attributed to the stronger influence of MgO on Ni finely dispersed in NiO−MgO solid solution than in Ni/Mg 1.3 AlO x or La.Ni(CA)/Mg 1.3 AlO x . In the first step of the reaction, this structure is supposed to accelerate the CO 2 dissociation at the metal‐support interface as well as the CH 4 cracking on Ni atoms, thereby releasing the first CO and H 2 molecules . With La 2 O 3 /La 2 O 2 CO 3 enriched around these metal atoms (Figure ), defective sites (e. g. oxygen vacancies) are generated (Figure c), promoting dissociative CO 2 adsorption which subsequently forms surface oxygen species .…”

Section: Figurementioning

confidence: 99%

Development of Highly Stable Low Ni Content Catalyst for Dry Reforming of CH₄‐Rich Feedstocks

Lund

Kreyenschulte

et al. 2020

ChemCatChem

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Highly active and coking‐resistant Ni catalysts suited for the dry reforming of CH4‐rich gases (70 vol %, e. g. biogas or sour natural gas) were prepared starting from a Mg‐rich Mg−Al hydrotalcite support precursor. Calcination at 1000 °C yields two phases, MgO and MgAl2O4 spinel. Complexation‐deposition of Ni with citric acid on the preformed support as well as lanthanum addition yields a catalyst with remarkably low carbon accumulation over 100 h on stream attributed to both high Ni dispersion and preferred interactions of Ni with MgO on MgAl2O4.

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“…However, it suffers quick deactivation because of carbon deposition . Research efforts have been focused on the development of new catalysts capable of minimizing carbon deposition, including monometallic active phase, bimetallic active phase, and composite supports . In addition, carbon deposition can be significantly inhibited by steam addition and operating condition optimization …”

Section: Introductionmentioning

confidence: 99%

H ₂ S effect on dry reforming of biogas for syngas production

Chein

Yang

2019

Int J Energy Res

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Summary The effect of hydrogen sulfide (H2S) on dry reforming of biogas for syngas production was studied both experimentally and theoretically. In the experimental work, the H2S effect on Ni‐based catalyst activity was examined for reaction temperatures ranging from 600°C to 800°C. It was found that the presence of H2S deactivated the Ni‐based catalysts significantly because of sulfur poisoning. Although bimetallic Pt‐Ni catalyst has better performance compared with monometallic Ni catalyst, deactivation was still found. The time‐on‐stream measured data also indicated that sulfur‐poisoned catalyst can be regenerated at high reaction temperatures. In the theoretical work, a thermodynamic equilibrium model was used to analyze the H2S removal effect in dry reforming of H2S‐contained biogas. Calcium oxide (CaO) and calcium carbonate (CaCO3) were used as the H2S sorbent. The results indicated that H2S removal depends on the initial H2S concentration and reaction temperature for both sorbents. Although CO2 was also removed by CaO, the results from equilibrium analysis indicated that the dry reforming reaction in the presence of CaO was feasible similar to the sorption enhanced water‐gas shift and steam‐methane reforming reactions. The simulation results also indicated that CaO was a more preferable H2S sorbent than CaCO3 because syngas with an H2/CO ratio closer to 2 can be produced and requires lower heat duty.

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Catalyst design for dry reforming of methane: Analysis review

Cited by 697 publications

References 127 publications

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

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

Development of Highly Stable Low Ni Content Catalyst for Dry Reforming of CH₄‐Rich Feedstocks

H ₂ S effect on dry reforming of biogas for syngas production

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Catalyst design for dry reforming of methane: Analysis review

Cited by 697 publications

References 127 publications

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

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

Development of Highly Stable Low Ni Content Catalyst for Dry Reforming of CH4‐Rich Feedstocks

H 2 S effect on dry reforming of biogas for syngas production

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Development of Highly Stable Low Ni Content Catalyst for Dry Reforming of CH₄‐Rich Feedstocks

H ₂ S effect on dry reforming of biogas for syngas production