Methanol synthesis from CO2 hydrogenation over Cu/γ-Al2O3 catalysts modified by ZnO, ZrO2 and MgO

Ren, Hong; Xu, Chenghua; Zhao, Haili; Wang, Yaxue; Liu, Jie; Liu, Jianying

doi:10.1016/j.jiec.2015.03.001

Cited by 158 publications

(74 citation statements)

References 35 publications

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“…When the loading was increased beyond 10 wt%, the conversion of CO 2 and space-time yield of methanol (STY MeOH ) decreased due to the agglomeration of active metals led to reduce copper oxides to metallic Cu 0 , which is a crucial active metal for synthesis of methanol [54]. As well as, Deerattrakul et al [54] have mentioned that his results have given the highest STY MeOH under the lowest operating pressure comparing to previously published works [55][56][57][58]. The rGO reduced by hydrazine played very significant role in the enhanced performance of the CuZn/ rGO catalyst [54].…”

Section: Effect Of Catalysts On Co 2 Hydrogenation To Methanolmentioning

confidence: 80%

A Brief Review of Carbon Dioxide Hydrogenation to Methanol Over Copper and Iron Based Catalysts

Tursunov

Кustov

Kustov

2017

Oil & Gas Science and Technology - Rev. IFP Energies nouvel

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-Climate change and global warming have become a challenging issue affecting not only humanity but also flora and fauna due to an intense increase of CO 2 emission in the atmosphere which has gradually led to amplification in the average global temperature. Hence, a number of mechanisms have been promoted to diminish the atmospheric commutation of carbon dioxide. One of the well-known techniques is Carbon Capture and Storage (CCS) which mechanism is based on capture and storage vast quantities of CO 2 , as well as Carbon Capture and Utilization (CCU) which mechanism is based on CO 2 conversion to liquid fuels (e.g. methanol, hydrocarbons, carbonate, propylene, dimethyl ether, ethylene, etc.). Particularly, methanol (CH 3 OH) is a key feedstock for industrial chemicals, which further can be converted into high molecular alternative liquid fuels. In this regard, hydrogenation of CO 2 is one of the promising, effectual and economic techniques for utilization of CO 2 emission. Nevertheless, the reduction/activation of CO 2 into useful liquid products is a scientifically challenging issue due to the complexities associated with its high stability. Thus, various catalysts have been applied to reduce the activation energy of the hydrogenation process and transform CO 2 into value-added products. Thereby, this review article highlights the progress and the recent advances of research investigation in Cu and Fe-based catalytic conversion of CO 2 , reaction mechanisms, catalytic reactivity, and influence of operating parameters on product efficiency.

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Section: Effect Of Catalysts On Co 2 Hydrogenation To Methanolmentioning

confidence: 80%

A Brief Review of Carbon Dioxide Hydrogenation to Methanol Over Copper and Iron Based Catalysts

Tursunov

Кustov

Kustov

2017

Oil & Gas Science and Technology - Rev. IFP Energies nouvel

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“…In fact, studies on CO 2 hydrogenation catalysts based on alumina-supported Cu nanoparticles are rare,a nd the influence of CH 3 OH or the effect of the Lewis acidic support on activity/product selectivity are often overlooked. [15,[49][50][51][52][53][54][55] To understand the role of alumina, we reasoned that studying alumina-supported Cu nanoparticles in the absence of zinc oxide would be ideal. We thus prepared small and narrowly dispersed Cu nanoparticles on Al 2 O 3 via SOMC.…”

Section: Introductionmentioning

confidence: 99%

CO₂ Hydrogenation on Cu/Al₂O₃: Role of the Metal/Support Interface in Driving Activity and Selectivity of a Bifunctional Catalyst

et al. 2019

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Selective hydrogenation of CO2 into methanol is a key sustainable technology, where Cu/Al2O3 prepared by surface organometallic chemistry displays high activity towards CO2 hydrogenation compared to Cu/SiO2, yielding CH3OH, dimethyl ether (DME), and CO. CH3OH formation rate increases due to the metal–oxide interface and involves formate intermediates according to advanced spectroscopy and DFT calculations. Al2O3 promotes the subsequent conversion of CH3OH to DME, showing bifunctional catalysis, but also increases the rate of CO formation. The latter takes place 1) directly by activation of CO2 at the metal–oxide interface, and 2) indirectly by the conversion of formate surface species and CH3OH to methyl formate, which is further decomposed into CH3OH and CO. This study shows how Al2O3, a Lewis acidic and non‐reducible support, can promote CO2 hydrogenation by enabling multiple competitive reaction pathways on the oxide and metal–oxide interface.

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“…These studies primarily focused on modifying and improving the Cu/Zn-based catalyst by introducing suitable promoters or supports (e.g., Au [11], TiO 2 [12], Ga 2 O 3 [13,14], MgO [15], and CeO 2 [16]). In recent years, researchers found that the addition of an appropriate amount of ZrO 2 could enhance the copper dispersion and the surface basicity [17,18], and a high selectivity for methanol was obtained over the CuO/ZnO/ZrO 2 catalyst, while the conversion of CO 2 was limited [19].…”

Section: Introductionmentioning

confidence: 99%

Cu-Mo2C/MCM-41: An Efficient Catalyst for the Selective Synthesis of Methanol from CO2

et al. 2016

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Supported molybdenum carbide (yMo 2 C/M41) and Cu-promoted molybdenum carbide, using a mechanical mixing and co-impregnation method (xCuyMo 2 C/M41-M and xCuyMo 2 C/M41-I) on a mesoporous molecular sieve MCM-41, were prepared by temperature-programmed carburization method in a CO/H 2 atmosphere at 1073 K, and their catalytic performances were tested for CO 2 hydrogenation to form methanol. Both catalysts, which were promoted by Cu, exhibited higher catalytic activity. In comparison to 20Cu20Mo 2 C/M41-M, the 20Cu20Mo 2 C/M41-I catalyst exhibited a stronger synergistic effect between Cu and Mo 2 C on the catalyst surface, which resulted in a higher selectivity for methanol in the CO 2 hydrogenation reaction. Under the optimal reaction conditions, the highest selectivity (63%) for methanol was obtained at a CO 2 conversion of 8.8% over the 20Cu20Mo 2 C/M41-I catalyst.

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Methanol synthesis from CO2 hydrogenation over Cu/γ-Al2O3 catalysts modified by ZnO, ZrO2 and MgO

Cited by 158 publications

References 35 publications

A Brief Review of Carbon Dioxide Hydrogenation to Methanol Over Copper and Iron Based Catalysts

A Brief Review of Carbon Dioxide Hydrogenation to Methanol Over Copper and Iron Based Catalysts

CO₂ Hydrogenation on Cu/Al₂O₃: Role of the Metal/Support Interface in Driving Activity and Selectivity of a Bifunctional Catalyst

Cu-Mo2C/MCM-41: An Efficient Catalyst for the Selective Synthesis of Methanol from CO2

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Methanol synthesis from CO2 hydrogenation over Cu/γ-Al2O3 catalysts modified by ZnO, ZrO2 and MgO

Cited by 158 publications

References 35 publications

A Brief Review of Carbon Dioxide Hydrogenation to Methanol Over Copper and Iron Based Catalysts

A Brief Review of Carbon Dioxide Hydrogenation to Methanol Over Copper and Iron Based Catalysts

CO2 Hydrogenation on Cu/Al2O3: Role of the Metal/Support Interface in Driving Activity and Selectivity of a Bifunctional Catalyst

Cu-Mo2C/MCM-41: An Efficient Catalyst for the Selective Synthesis of Methanol from CO2

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CO₂ Hydrogenation on Cu/Al₂O₃: Role of the Metal/Support Interface in Driving Activity and Selectivity of a Bifunctional Catalyst