Methanol synthesis from CO2-H2 and from CO-H2 under atmospheric pressure over Pd and Cu catalysts

Fujita, Shin‐ichiro; Usui, Masahito; Hanada, Takuya; Takezawa, Nobutsune

doi:10.1007/bf02066946

Cited by 13 publications

(6 citation statements)

References 9 publications

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“…1) both this (fig. S12) and other studies [19,29,52] observe that catalysts with a high activity from CO/H2, such as Cu/MgO, are strongly inhibited by CO2. The inhibition is largely reversible upon removal of CO2 (fig.…”

Section: Resultsmentioning

confidence: 80%

“…As an example another system with high activity from CO/H2 is Cu/CeO2 [16,17], where the oxide is also able to activate CO as formate [42], and where the presence of CO2 also inhibits the methanol synthesis and leads to carbonate formation [52,56]. Similarly, Pd-based catalysts for CO hydrogenation generally exhibit the same support and promoter effect where basic oxides are beneficial [19,46].…”

Section: Resultsmentioning

confidence: 99%

“…Both of these factors could lead to improved lowtemperature performance, and some Cu-based catalysts are able to achieve considerable methanol synthesis rates from CO/H2 at lower temperatures [16,17] These considerations imply that it is of potential importance to elucidate the active sites and mechanism for CO hydrogenation on Cu-based catalysts. Additionally, the CO hydrogenation can offer fundamental insights into support effects, as single crystal studies [15,18] suggest that Cu itself has little or no activity for CO hydrogenation, whereas supported Cu catalysts can exhibit catalytic activity with a strong support effect [19]. Here we seek to elucidate the reaction mechanism and the support effect.…”

Section: Introductionmentioning

confidence: 99%

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Bifunctional Synergy in CO Hydrogenation to Methanol with Supported Cu

et al. 2019

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Section: Resultsmentioning

confidence: 80%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Bifunctional Synergy in CO Hydrogenation to Methanol with Supported Cu

et al. 2019

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“…During the methanol synthesis from CO 2 , the stability of Cu/ZnO-based catalysts was improved by incorporating a small amount of silica, which suppressed the crystallization of ZnO in the catalysts (Toyir et al, 2009). Cu supported on high-purity silica was nearly inactive in methanol synthesis (Fujita et al, 1995;Gotti and Prins, 1998), and the selectivity toward methanol was low. In another study, the Cu/SiO 2 catalyst exhibited a low selectivity to methanol (Sugawa et al, 1995).…”

Section: Non-metal Oxide Supportsmentioning

confidence: 99%

Improving the Cu/ZnO-Based Catalysts for Carbon Dioxide Hydrogenation to Methanol, and the Use of Methanol As a Renewable Energy Storage Media

2020

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Heterogeneous catalytic hydrogenation of carbon dioxide (CO2) to methanol is a practical approach to mitigating its greenhouse effect in the environment while generating good economic profits. Though applicable on the industrial scale through the syngas route, the catalyst of Cu/ZnO/Al2O3 suffers from a series of technical problems when converting CO2 to methanol directly, which include low single-pass conversion, low methanol selectivity, requiring high pressure and fast deactivation by the reverse water gas shift reaction. Over the years, intensive research efforts have been devoted to proffering solutions to these problems by modifying the existing catalyst or developing new active catalysts. However, the open question is if this type of widely used industrial catalyst still promising for CO2 methanolizing reaction or not? This paper reviews the history of the methanol production in industry, the impact of CO2 emission on the environment, and analyzes the possibility of the Cu/ZnO-based catalysts for the direct hydrogenation of CO2 to methanol. We not only address the theoretical and technical aspects but also provide insightful views on catalyst development.

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“…In experiments conducted at pressures in excess of 100 MPa, it was shown that especially Pd supported on SiO 2 had activity and selectivity for methanol formation from a synthesis gas consisting of H 2 and CO. About 10 years later [125], it was shown that the Pd(110) surface has activity for methanol formation. Cu and Pd catalysts supported on ZnO, ZrO 2 , SiO 2 and MgO were compared in conversion studies at 0.1 MPa using CO 2 /H 2 [127]. The promoting effect of calcium was demonstrated [126], showing drastically increased methanol formation, whereas the non-selective methane formation remained unchanged.…”

Section: Pd-based Catalystsmentioning

confidence: 99%

Methanol Synthesis

Hansen¹,

Nielsen²

2008

Handbook of Heterogeneous Catalysis

133

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The sections in this article are Introduction Thermodynamics Methanol Synthesis Catalysts Introduction Zn O / Cr 2 O 3 Catalyst Copper‐Based Catalysts Cu / Zn O + Element ( Al , Cr , … ) Promotion of Cu / Zn O / MOx Catalysts Cu / Zr O 2 Other Cu , Cu / Me , Cu / Me Ox Catalysts Pd ‐Based Catalysts Sulfide Catalysts Other Catalysts Activation of Cu / Zn Catalyst Activity as a Function of the Nature of Copper‐Based Catalysts Catalyst Deactivation Sintering Sulfur Poisoning Other Poisons By‐Product Formation Reaction Mechanism(s) and Active Sites Cu + in a Zn O Matrix as the Active Center The S chottky Junction Theory Partly Oxidized Copper Independent of Support as Active Sites Metallic Copper in Dynamic Interaction with the Support Cu –Zinc Surface Alloy Model Water Gas Shift Reaction Kinetics Reaction Rate Equations Diffusion Restrictions Kinetics in Slurry Phase Methanol Synthesis Methanol Synthesis Technology Synthesis Gas Preparation Natural Gas Reforming Adiabatic Pre‐Reforming Tubular, Fired Reforming Autothermal Reforming and Oxygen‐Fired Secondary Reforming Gasification of Heavy Oil, Coal or Biomass Coproduction in Ammonia Plants and Use of Off‐gases Economics of Synthesis Gas Preparation Reactor Systems and Synthesis Loop Layout Slurry Phase Reactor Types Methanol Purification Concepts Circumventing the Equilibrium Limitations Other Methanol Synthesis Routes and Technologies Methanol Synthesis by Methane Activation Conclusion

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Methanol synthesis from CO2-H2 and from CO-H2 under atmospheric pressure over Pd and Cu catalysts

Cited by 13 publications

References 9 publications

Bifunctional Synergy in CO Hydrogenation to Methanol with Supported Cu

Bifunctional Synergy in CO Hydrogenation to Methanol with Supported Cu

Improving the Cu/ZnO-Based Catalysts for Carbon Dioxide Hydrogenation to Methanol, and the Use of Methanol As a Renewable Energy Storage Media

Methanol Synthesis

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