Hydrogenation of carbon monoxide to methane over mesoporous nickel-M-alumina (M=Fe, Ni, Co, Ce, and La) xerogel catalysts

Hwang, Soon Jung; Lee, Joongwon; Hong, Ung Gi; Jung, Ji Chul; Koh, Dong Jun; Lim, Hyojun; Byun, Changdae; Song, In Kyu

doi:10.1016/j.jiec.2011.11.026

Cited by 68 publications

(25 citation statements)

References 35 publications

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“…Other recent relevant studies devoted to Ni-Fe-based catalysts for methanation reactions regarded the effect of the Fe content on Al 2 O 3 -supported catalysts in the co-methanation of CO and CO 2 [229]; the influence of the second metal for CO hydrogenation [230]; the effect of the preparation method [231]; and the effect of the addition of a noble metal (Ru) [232] on the activity and selectivity of the reactions investigated.…”

Section: Nickel-iron-based Catalystsmentioning

confidence: 99%

“…The low performance exhibited by both Ce and La as a second metal appears to denote that transition metals (Fe, Co, Ni) are more effective in promoting the reaction than lanthanides (Ce, La). Moreover, on the basis of temperature-programmed surface reaction (TPSR) experiments, the higher performance of 30Ni10FeAX was attributed to the optimal CO dissociation energy and the largest H 2 adsorption [230]. Following the latter two studies discussed above, Hwang et al investigated, on the same catalytic system (AX-supported Ni-Fe), the effect of the precipitation agent, on the catalysts prepared by coprecipitation, on methane production from CO 2 and H 2 .…”

Section: Nickel-iron-based Catalystsmentioning

confidence: 99%

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Supported Catalysts for CO2 Methanation: A Review

et al. 2017

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CO 2 methanation is a well-known reaction that is of interest as a capture and storage (CCS) process and as a renewable energy storage system based on a power-to-gas conversion process by substitute or synthetic natural gas (SNG) production. Integrating water electrolysis and CO 2 methanation is a highly effective way to store energy produced by renewables sources. The conversion of electricity into methane takes place via two steps: hydrogen is produced by electrolysis and converted to methane by CO 2 methanation. The effectiveness and efficiency of power-to-gas plants strongly depend on the CO 2 methanation process. For this reason, research on CO 2 methanation has intensified over the last 10 years. The rise of active, selective, and stable catalysts is the core of the CO 2 methanation process. Novel, heterogeneous catalysts have been tested and tuned such that the CO 2 methanation process increases their productivity. The present work aims to give a critical overview of CO 2 methanation catalyst production and research carried out in the last 50 years. The fundamentals of reaction mechanism, catalyst deactivation, and catalyst promoters, as well as a discussion of current and future developments in CO 2 methanation, are also included.

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Section: Nickel-iron-based Catalystsmentioning

confidence: 99%

Section: Nickel-iron-based Catalystsmentioning

confidence: 99%

Supported Catalysts for CO2 Methanation: A Review

et al. 2017

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“…In the last decade, many efforts have been made to improve the catalytic performance of the Ni/Al 2 O 3 catalyst. The addition of small amount of second metal, such as Mg, Co, Zr, Ce, La and Zn has been attempted to enhance the stability and catalytic activity of the methanation of carbon monoxide [13].…”

Section: Introductionmentioning

confidence: 99%

Perfomances of different additives on NiO/γ-Al2O3 catalyst in CO methanation

Wang

Liu

et al. 2016

Appl Petrochem Res

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In this work, NiO/c-Al 2 O 3 catalyst with different additives prepared by excessive dipping method, was investigated in CO methanation in an attempt to improve the reaction activity and enhance the anti-coking property. The influences of additives, such as Zr, Co, Ce, Zn and La, on catalysts in performance of CO methanation were studied in a fixed-bed reactor. The catalysts were characterized by XRD, H 2 -TPR, H 2 -TPD and CO-TPD. The results showed that the addition of the additives could promote the dispersion of nickle species on support and decrease the crystallite size of Nickel species. The reduction temperatures of catalysts were all reduced except the one with Mg. The catalytic results showed that additives improved the reaction activity of CO methanation. Especially, the addition of La gave the best catalytic performance of 100 % CO conversion and 99.61 % CH 4 selectivity, respectively. The space-time yield of CH 4 was achieved as high as 2134.5 g kg -1 h -1 .

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“…In addition, the Ni/Al 2 O 3 catalyst exhibited poor catalytic activity for CO methanation in slurry-bed reactor (Zhang et al, 2013;Meng et al, 2014b), because the slurry solvent prevents the use of high temperatures. To further improve the catalytic activity and stability of Ni-based catalyst, many studies have focused on the addition of second metal (Hwang et al, 2012), such as La (Zhi et al, 2011;Cui et al, 2014), Ce (Qin et al, 2015;Liu et al, 2014), Fe (Tian et al, 2013) and Zr etc.. Previous studies have shown that La and Ce are better promoters at low temperatures than the others are (Zhi et al, 2011;Senanayake et al, 2011;Liu et al, 2014).…”

Section: Introductionmentioning

confidence: 99%