CO2 Hydrogenation to Higher Alcohols over K-Promoted Bimetallic Fe–In Catalysts on a Ce–ZrO2 Support

In order to explore co-production alternatives, a once-through process for CO2 hydrogenation to chemicals and liquid fuels was investigated experimentally. In this approach, two different catalysts were considered; the first was a Cu-based catalyst that hydrogenates CO2 to methanol and CO and the second a Fisher–Tropsch (FT) Co-based catalyst. The two catalysts were loaded into different reactors and were initially operated separately. The experimental results show that: (1) the Cu catalyst was very active in both the methanol synthesis and reverse-water gas shift (R-WGS) reactions and these two reactions were restricted by thermodynamic equilibrium; this was also supported by an Aspen plus simulation of an (equilibrium) Gibbs reactor. The Aspen simulation results also indicated that the reactor can be operated adiabatically under certain conditions, given that the methanol reaction is exothermic and R-WGS is endothermic. (2) the FT catalyst produced mainly CH4 and short chain saturated hydrocarbons when the feed was CO2/H2. When the two reactors were coupled in series and the presence of CO in the tail gas from the first reactor (loaded with Cu catalyst) significantly improves the FT product selectivity toward higher carbon hydrocarbons in the second reactor compared to the standalone FT reactor with only CO2/H2 in the feed.

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A biometric study of higher alcohol production in Saccharomyces cerevisiae

Canadian Journal of Microbiology ◽

10.1139/m90-012 ◽

1990 ◽

Vol 36 (1) ◽

pp. 61-64 ◽

Cited By ~ 57

Author(s):

Paolo Giudici ◽

Patrizia Romano ◽

Carlo Zambonelli

Keyword(s):

Saccharomyces Cerevisiae ◽

Key Words ◽

Isoamyl Alcohol ◽

Higher Alcohols ◽

Methionine Biosynthesis ◽

Higher Alcohol ◽

Strain Characteristic ◽

Alcohol Production ◽

Flocculation Ability ◽

Individual Strain

A hundred strains of Saccharomyces cerevisiae were examined for the ability to produce higher alcohols. In the strains tested the production of higher alcohols was found to be an individual strain characteristic and, as such, was statistically significant. The characteristics of the strains used (flocculation ability, foaming ability, killer character, and non-H2S production) were found to be uncorrelated to isobutanol and isoamyl alcohol production, whereas the production of high levels of n-propanol was found to be related to inability to produce H2S. This, in turn, suggests a link to methionine biosynthesis. Key words: Saccharomyces cerevisiae, higher alcohols, biometry, H2S production.

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CO2 Hydrogenation to Higher Alcohols over K-Promoted Bimetallic Fe–In Catalysts on a Ce–ZrO2 Support

Catalysts design for higher alcohols synthesis by CO2 hydrogenation: Trends and future perspectives

Tandem Catalysis of Direct CO2 Hydrogenation to Higher Alcohols

Roles Investigation of Promoters in K/Cu–Zn Catalyst and Higher Alcohols Synthesis from CO2 Hydrogenation over a Novel Two-Stage Bed Catalyst Combination System

Enhanced CO2 hydrogenation to higher alcohols over K-Co promoted In2O3 catalysts

Monometallic Iron Catalysts with Synergistic Na and S for Higher Alcohols Synthesis via CO2 Hydrogenation

Effect of Iron Promoter on Structure and Performance of K/Cu–Zn Catalyst for Higher Alcohols Synthesis from CO2 Hydrogenation

Thermodynamic Analysis of Chemical and Phase Equilibria in CO2 Hydrogenation to Methanol, Dimethyl Ether, and Higher Alcohols

CO2 hydrogenation to methanol catalyzed by Ni5Ga3 metal alloy

Production of Fuels and Chemicals from a CO2/H2 Mixture

A biometric study of higher alcohol production in Saccharomyces cerevisiae

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