A review on catalyst development for dry reforming of methane to syngas: Recent advances

Abdul-Rahman, Alias; Jalil, Aishah Abdul; Gambo, Yahya; Ibrahim, Mastura; Hambali, H.U.; Hamid, M.Y.S.

doi:10.1016/j.rser.2019.03.054

Cited by 560 publications

(310 citation statements)

References 199 publications

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“…This phenomenon has already been observed in 1928 by Fischer and Tropsch over Ni and Co catalysts . Numerous reviews on DRM have been written in recent years which mainly deal with different types of catalysts that are said to be less affected by coke formation …”

Section: Introductionmentioning

confidence: 99%

“…The activity of catalysts for dry reforming depends on a range of factors as the active metal (species, reducibility, particle size), the support (kind of support, surface area, acidity, basicity, oxygen storage capacity) and interaction of both . Several reviews summarized the developments in the field of catalyst materials for dry reforming of methane and focused on the properties and catalytic behavior of different catalyst systems. While different active metals have been considered, most of the discussed systems can be either assigned to noble metals (Rh, Ru, Pt, Ir, and Pd) or base metals (Ni, Co).…”

Section: Introductionmentioning

confidence: 99%

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Catalytic Dry Reforming of Methane: Insights from Model Systems

Wittich¹,

et al. 2020

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Catalytic dry reforming under industrially relevant conditions of high pressures and high temperatures poses severe challenges towards catalyst materials and process engineering. The demanding conditions under which the reaction is performed lead to a coupling of reactions occurring in the gas phase and reactions which are catalyzed by the material employed as catalyst. A profound analysis of the mechanisms occurring in gas phase and resulting products from gas phase reactions is key to understanding part of the challenges that any catalyst material, irrespective of its nature, will have to cope with. The deposition of coke on an active catalyst is as well one of the most limiting factors for catalyst lifetime and catalyst activity in dry reforming. Therefore, an understanding of the thermodynamics behind coke formation and an intricate description of the mechanisms driving the evolution of coke is a vital piece of the picture. Acid-base properties of the catalyst material and the role and nature of the active metal do also need to be considered. A large part of the review deals with mechanisms which are relevant for coke gasification and insights into materials properties, which are relevant to allow for reaction pathways along these lines. The review article focusses on research results which have been achieved using model systems -typically the analysis of model systems is a more rewarding exercise compared to fully formulated industrial catalyst systems, as here more elucidating structure-property relationships can be drawn. Additionally the article discusses dry methane reforming in the context of alternative syngas generation technologies and attempts to create an application perspective for the reader in the context of a sustainable approach towards carbon capture and storage.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Catalytic Dry Reforming of Methane: Insights from Model Systems

Wittich¹,

et al. 2020

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“…Due to the strong endothermic nature of the DRM reaction, most of previous studies were conducted at temperatures higher than 600 • C for high conversions of CO 2 and CH 4 . Therefore, developing a robust catalyst that possesses good stability and excellent resistance to coke plays a crucial role in the DRM reaction [2][3][4]. CO 2 + CH 4 ↔ 2CO + 2H 2 , ∆H 298 K = +247 kJ mol −1…”

Section: Introductionmentioning

confidence: 99%

“…However, Ni-based catalysts are prone to carbon deposition and metal sintering during DRM [11,12]. Designing a DRM catalyst that resists against carbon deposition and metal sintering could be accomplished by making appropriate choice of support, promoter, structure, and methods of preparation [2][3][4]. Because oxygen species in the CeO 2 lattice can effectively lower carbon accumulation by oxidation of accumulated carbon, various Ni/CeO 2 compositions were extensively studied to prevent carbon deposition [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Encapsulated Ni@La2O3/SiO2 Catalyst with a One-Pot Method for the Dry Reforming of Methane

Wang

Liu

et al. 2019

Catalysts

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Ni nanoparticles encapsulated within La 2 O 3 porous system (Ni@La 2 O 3 ), the latter supported on SiO 2 (Ni@La 2 O 3 )/SiO 2 ), effectively inhibit carbon deposition for the dry reforming of methane. In this study, Ni@La 2 O 3 /SiO 2 catalyst was prepared using a one-pot colloidal solution combustion method. Catalyst characterization demonstrates that the amorphous La 2 O 3 layer was coated on SiO 2 , and small Ni nanoparticles were encapsulated within the layer of amorphous La 2 O 3 . During 50 h of dry reforming of methane at 700 • C and using a weight hourly space velocity (WHSV) of 120,000 mL g cat −1 h −1 , the CH 4 conversion obtained was maintained at 80%, which is near the equilibrium value, while that of impregnated Ni-La 2 O 3 /SiO 2 catalyst decreased from 63% to 49%. The Ni@La 2 O 3 /SiO 2 catalyst exhibited very good resistance to carbon deposition, and only 1.6 wt% carbon was formed on the Ni@La 2 O 3 /SiO 2 catalyst after 50 h of reaction, far lower than that of 11.5 wt% deposited on the Ni-La 2 O 3 /SiO 2 catalyst. This was mainly attributed to the encapsulated Ni nanoparticles in the amorphous La 2 O 3 layer. In addition, after reaction at 700 • C for 80 h with a high WHSV of 600,000 mL g cat −1 h −1 , the Ni@La 2 O 3 /SiO 2 catalyst exhibited high CH 4 conversion rate, ca. 10.10 mmol g Ni −1 s −1 . These findings outline a simple synthesis method to prepare supported encapsulated Ni within a metal oxide porous structure catalyst for the dry reforming of methane reaction.

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“…As we recently reviewed, the nature of the support has a strong influence on the activity, selectivity and stability of supported Ni catalysts in DRM reaction . Support materials such as SiO 2 , KCC‐1, KIT‐6, Al 2 O 3 , CeO 2 , perovskites and zeolites have been investigated in DRM. In general, zeolites are microporous crystalline aluminosilicates.…”

Section: Introductionmentioning

confidence: 99%

Fibrous spherical Ni‐M/ZSM‐5 (M: Mg, Ca, Ta, Ga) catalysts for methane dry reforming: The interplay between surface acidity‐basicity and coking resistance

et al. 2020

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A highly active and robust fibrous spherical ZSM-5-supported nickel catalyst with different promoters (Mg, Ca, Ta, Ga) have been synthesised by microemulsion method for dry reforming of methane (DRM). The structural framework provided by the unique fibrous spherical ZSM-5 aided confinement of Ni particles. Catalytic activity was improved by homogenous distribution of surface acid-basic sites, thereby reducing the propensity of coke deposition.Bimetallic Ni-Ta catalyst produced the highest CH 4 and CO 2 conversions at 93% and 98%, respectively, with H 2 /CO ratio closer to unity (0.97). The nature of acid sites and bimetallic Ni-Ta synergism amplified interaction of catalyst components, resulting in improved interaction with the reactants, thus impeding metal sintering and coke deposition. Consequently, the Ni-Ta/FZSM-5 catalyst shows long-term activity (80 hours) for the DRM reaction at 800 C. K E Y W O R D Sdry reforming, methane, Ni/ZSM-5, nickel, tantalum

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A review on catalyst development for dry reforming of methane to syngas: Recent advances

Cited by 560 publications

References 199 publications

Catalytic Dry Reforming of Methane: Insights from Model Systems

Catalytic Dry Reforming of Methane: Insights from Model Systems

Encapsulated Ni@La2O3/SiO2 Catalyst with a One-Pot Method for the Dry Reforming of Methane

Fibrous spherical Ni‐M/ZSM‐5 (M: Mg, Ca, Ta, Ga) catalysts for methane dry reforming: The interplay between surface acidity‐basicity and coking resistance

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