C1-C6 alcohols from synthesis gas on copper-cobalt catalysts

Courty, Philippe; Durand, D.; Freund, E.; Sugier, Annie

doi:10.1016/0304-5102(82)85035-9

Cited by 269 publications

(101 citation statements)

References 2 publications

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“…Samples were prepared by co-precipitation similar to the procedure first described by the Institut Français du Pétrole (IFP) [6]. A metal salt solution of cobalt (0.20 M), copper (0.48 M), zinc (0.22 M) and aluminum (0.10 M) nitrates was pumped into a vessel containing preheated (65°C) deionized water under continuous stirring.…”

Section: Methodsmentioning

confidence: 99%

Fast and Reproducible Testing of Cu–Co-Based Catalysts Applied in the Conversion of Synthesis Gas to Ethanol and Higher Alcohols

2015

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A test procedure for alkali-free Cu-Co-based catalysts synthesized by co-precipitation was established allowing the fast assessment and screening of their catalytic properties in the synthesis of higher alcohols by online GC analysis. Due to precisely controlled initial deactivation of the catalysts at 280°C long-term measurements were avoided and steady-state conditions at 260°C were reached within a short period of time. Temperatures up to 300°C were found to favor the formation of methanol, whereas the product distribution was not affected at lower space velocities. Even traces of alkali ions present due to insufficient washing were found to strongly affect the catalytic properties. Graphical Abstract 0 1 0 2 0 3 0 0 1 2 3 4 5 time on stream / h X CO / % 260 280 300 temperature / °C isothermal measurement at 260°C

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Section: Methodsmentioning

confidence: 99%

Fast and Reproducible Testing of Cu–Co-Based Catalysts Applied in the Conversion of Synthesis Gas to Ethanol and Higher Alcohols

2015

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“…Selective production of higher alcohols is generally reported on Rh based catalysts, [44][45][46] but utilization of cheaper bimetallic catalysts has been also shown to form higher alcohols. 42,[47][48][49] Whereas most research focuses on the production of C 2 -C 6 alcohols, recent publications also report the conversion of syngas into long-chain alcohols containing up to 22 carbon atoms. [50][51][52] Though these catalytic developments show promising results, the commercial synthesis of ethanol and higher alcohols from syngas is currently challenging due to low yield and selectivity.…”

Section: -36mentioning

confidence: 99%

Review of catalytic systems and thermodynamics for the Guerbet condensation reaction and challenges for biomass valorization

Gabriëls

Hernández

Sels

et al. 2015

Catal. Sci. Technol.

249

233

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The Guerbet condensation reaction is an alcohol coupling reaction that has been known for more than a century. Because of the increasing availability of bio-based alcohol feedstock, this reaction is of growing importance and interest in terms of value chains of renewable chemical and biofuel production. Due to the specific branching pattern of the alcohol products, the Guerbet reaction has many interesting applications. In comparison to their linear isomers, branched-chain Guerbet alcohols have extremely low melting points and excellent fluidity. This review provides thermodynamic insights and unravels the various mechanistic steps involved. A comprehensive overview of the homogeneous, heterogeneous and combined homogeneous and heterogeneous catalytic systems described in published reports and patents is also given. Technological considerations, challenges and perspectives for the Guerbet chemistry are discussed.

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“…The XRD pattern of the catalyst precursor (the inset in Fig. 1) exhibited sharp and symmetrical reflections for (003), (006), and (113) planes and broad and asymmetric reflections for (012), (015), and (018) planes, characteristic of a wellcrystallized HT in carbonate form (Courty et al 1982;Sate et al 1988). The peaks at 11.7, 23.3, 35.0, 39.0, 47.2, and 61.6 could be assigned to the (003), (006), (012), (015), (018), and (113) For the reduced sample, peaks corresponding to planes (200) at 2θ of 51.7° could be clearly observed.…”

Section: Catalyst Characterization Xrd Testmentioning

confidence: 99%

Efficient Conversion of Maltose into Sorbitol over Magnetic Catalyst in Extremely Low Acid

Zhang

et al. 2013

BioResources

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Ni/Cu/Al/Fe hydrotalcite precursor was synthesized by a co-precipitation method. The activity of the reduced precursor for one-step conversion of maltose into sorbitol in the presence of H 2 and extremely low phosphoric acid was investigated. XRD and XPS tests provided the essential properties of the precursor and prepared magnetic catalyst. Effects of various processing parameters towards the reaction performance were studied in detail. A desired sorbitol yield of 93.1% was attained at 458 K for 3 h with a catalyst dosage of 20%. A catalyst recycling experiment demonstrated that Ni 4.63 Cu 1 Al 1.82 Fe 0.79 was a better catalyst and could be reused three or four times. The specific reasons for catalyst deactivation were considered in depth.

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C1-C6 alcohols from synthesis gas on copper-cobalt catalysts

Cited by 269 publications

References 2 publications

Fast and Reproducible Testing of Cu–Co-Based Catalysts Applied in the Conversion of Synthesis Gas to Ethanol and Higher Alcohols

Fast and Reproducible Testing of Cu–Co-Based Catalysts Applied in the Conversion of Synthesis Gas to Ethanol and Higher Alcohols

Review of catalytic systems and thermodynamics for the Guerbet condensation reaction and challenges for biomass valorization

Efficient Conversion of Maltose into Sorbitol over Magnetic Catalyst in Extremely Low Acid

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