Higher alcohols synthesis via CO hydrogenation on Fe-promoted Co/AC catalysts

Du, Hong; Zhu, Huichao; Liu, Tao; Zhao, Zihan; Chen, Xingkun; Dong, Wenyi; Lü, Wei; Luo, Wenting; Ding, Yunjie

doi:10.1016/j.cattod.2016.05.023

Cited by 40 publications

(23 citation statements)

References 64 publications

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“…The conversion from syngas to higher alcohols are identified as a potential process to produce green and high quality transportation fuels. Higher alcohols, typically defined as alcohols possessing two or/and more carbon atoms, attract widespread researcher interest because of their widespread application . Among higher alcohol, isobutanol is considered one of the most promising additives for gasoline to raise the octane number and the combustion efficiency in automobiles.…”

Section: Introductionsupporting

confidence: 61%

Isobutanol Synthesis from Syngas over Zn‐Cr Catalyst: Effect of Zn/Cr Element Ratio

Tian

et al. 2018

Energy Tech

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This report demonstrated the effect of Zn/Cr element ratio on Zn−Cr catalyst for isobutanol formation from the reaction of carbon monoxide hydrogenation. The catalysts of different Zn/Cr element ratios including 1 : 3, 1 : 1, 3 : 1 and 5 : 1 have been prepared by a facile coprecipitation approach and their activity evaluation of isobutanol formation by carbon monoxide hydrogenation were tested. The Zn1Cr1 catalyst of Zn/Cr element ratio being 1 : 1 presented outstanding activity for iso‐butanol formation from the carbon monoxide hydrogenation, carbon monoxide conversion and isobutanol selectivity reached to the maximum to ∼32 % and ∼24 %, respectively. Multi‐Characterization including TEM, XRD, BET, XAS, H2‐TPR, CO2‐TPD and XPS were proceed to investigate the physico‐chemical property of catalysts. The characterization results display that the Zn1Cr1 catalyst presents more nonstoichiometric Zn−Cr spinel and oxygen vacancies as well as more defects. The Zn1Cr1 catalyst also presents better properties of basicity, reducibility and BET surface area which are some other factors for better result of activity evaluation for isobutanol formation by carbon monoxide hydrogenation.

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Section: Introductionsupporting

confidence: 61%

Isobutanol Synthesis from Syngas over Zn‐Cr Catalyst: Effect of Zn/Cr Element Ratio

Tian

et al. 2018

Energy Tech

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“…3). 33,[73][74][75][76][77][78][79][80][81][82] The AC support facilitates the formation of Co/Co 2 C active sites for selective alcohol synthesis. Alcohols are significant chemical feedstocks used widely for the product of plasticizers, detergents, and lubricants.…”

Section: Activated Carbon Supported Cobalt Catalystsmentioning

confidence: 99%

“…The 5 wt% Fe doped 15Co/AC catalyst (15Co-5Fe/AC) demonstrates an alcohol selectivity of 20.6 with the main production of the C 2 -C 5 alcohols. 78 The metal impregnation sequence plays an important role in the activity, selectivity, and product distributions of the Fe/AC catalysts. 89 The impregnation of Fe followed by Co on a 15Co-5Fe/AC catalyst was found to result in a more active catalyst than the reversed order of impregnation.…”

Section: Activated Carbon Supported Cobalt Catalystsmentioning

confidence: 99%

Carbon-based catalysts for Fischer–Tropsch synthesis

et al. 2021

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“…Four kinds of catalysts are commonly used in CO hydrogenation to mixed alcohol: Rh-based catalysts [7][8][9][10], Mo-based catalysts [11][12][13][14], modified Fischer-Tropsch synthesis catalysts [15][16][17][18] and modified methanol synthesis catalysts [19,20]. Molybdenum carbide catalysts are widely used in CO or CO 2 hydrogenation to mixed alcohol [21][22][23], water gas shift [24,25], methanol steam reforming [26][27][28], methane dry reforming [29] and so on.…”

Section: Introductionmentioning

confidence: 99%

Influence of Carbon Content in Ni-Doped Mo2C Catalysts on CO Hydrogenation to Mixed Alcohol

Hao

Tian

et al. 2021

Catalysts

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Herein, we synthesize the Ni-doped Mo2C catalysts by a one-pot preparation method to illuminate the effect of the number of carbon atoms in Mo2C lattice on CO hydrogenation to mixed alcohol. The Ni doping inhibits the agglomeration of Mo2C crystals into large particles and the surface carbon deposition, which increase the active surface area. In addition, the interaction between Ni and Mo increases the electron cloud density of Mo species and promotes the non-dissociative adsorption and insertion of CO. Especially, our results indicate that with the increase of the nickel content, the number of carbon atoms in Mo2C lattice on the surface of the catalyst shows a volcano type variation. The low carbon content induces the formation of coordination unsaturated molybdenum species which exhibit the higher catalytic activity and mixed alcohol selectivity than other molybdenum species. Among the catalysts, the MC-Ni-1.5 catalyst with Ni/Mo molar ratio of 1.5:8.5, which has the largest amount of coordination unsaturated molybdenum species, shows the highest space-time yield of mixed alcohols, which is three times higher than that of the Mo2C catalyst.

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Higher alcohols synthesis via CO hydrogenation on Fe-promoted Co/AC catalysts

Cited by 40 publications

References 64 publications

Isobutanol Synthesis from Syngas over Zn‐Cr Catalyst: Effect of Zn/Cr Element Ratio

Isobutanol Synthesis from Syngas over Zn‐Cr Catalyst: Effect of Zn/Cr Element Ratio

Carbon-based catalysts for Fischer–Tropsch synthesis

Influence of Carbon Content in Ni-Doped Mo2C Catalysts on CO Hydrogenation to Mixed Alcohol

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