A new method of low-temperature methanol synthesis on Cu/ZnO/Al2O3 catalysts from CO/CO2/H2

Yang, Renqiang; Yu, Xiaocai; Zhang, Yi; Li, Wenze; Tsubaki, Noritatsu

doi:10.1016/j.fuel.2007.06.020

Cited by 135 publications

(67 citation statements)

References 20 publications

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“…It seems that the Cu-specific surface area of the catalyst was the key factor affecting the catalytic performance instead of the BET surface area. Our results show that the metallic Cu is the catalytic active center for methanol synthesis, which is in good agreement with the previous studies [16,17]. Thereafter, we also investigated the influence of the SC-CO 2 drying temperature to the catalytic performance.…”

Section: Resultssupporting

confidence: 91%

Effect of supercritical fluid of CO2 drying during Cu/ZnO catalyst preparation on methanol synthesis from syngas at low temperature

Meng

et al. 2011

Res Chem Intermed

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A copper-based catalyst can be utilized to synthesize methanol from syngas containing carbon dioxide as well as water at low temperature and low pressure. However, the agglomeration of the metallic copper and zinc oxide decreased the catalyst surface area and the Cu-specific surface area. In order to prevent the sintering, the supercritical CO 2 was used to extract water from the catalyst precursor. Our results demonstrate that the Cu-specific surface area was the essential factor to affect the catalytic activity. A larger Cu-specific surface area would cause higher methanol synthesis activity. The optimized supercritical CO 2 drying condition was at 308 K and 8.0 MPa for 3 h when the methanol yield reached 44.8%.

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Section: Resultssupporting

confidence: 91%

Effect of supercritical fluid of CO2 drying during Cu/ZnO catalyst preparation on methanol synthesis from syngas at low temperature

Meng

et al. 2011

Res Chem Intermed

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“…Extreme temperature limits the efficiency of methanol production due to thermodynamic limitations. Shen et al [60] found that both temperature and pressure have a considerable effect on equilibrium yields. The equilibrium conversion of CO 2 to methanol increases distinctively with increasing pressure and decreases strongly as temperature increases.…”

Section: Results Of Anova Analysismentioning

confidence: 99%

Optimization through Response Surface Methodology of a Reactor Producing Methanol by the Hydrogenation of Carbon Dioxide

Leonzio

2017

Processes

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Carbon dioxide conversion and utilization is gaining significant attention worldwide, not only because carbon dioxide has an impact on global climate change, but also because it provides a source for potential fuels and chemicals. Methanol is an important fuel that can be obtained by the hydrogenation of carbon dioxide. In this research, the modeling of a reactor to produce methanol using carbon dioxide and hydrogen is carried out by way of an ANOVA and a central composite design. Reaction temperature, reaction pressure, H 2 /CO 2 ratio, and recycling are the chosen factors, while the methanol production and the reactor volume are the studied responses. Results show that the interaction AC is common between the two responses and allows improvement of the productivity in reducing the volume. A mathematical model for methanol production and reactor volume is obtained with significant factors. A central composite design is used to optimize the process. Results show that a higher productivity is obtained with temperature, CO 2 /H 2 ratio, and recycle factors at higher, lower, and higher levels, respectively. The methanol production is equal to 33,540 kg/h, while the reactor volume is 6 m 3 . Future research should investigate the economic analysis of the process in order to improve productivity with lower costs.

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“…In this contest, Cu-ZnO-Al 2 O 3 , as well as Al 2 O 3 and HZSM-5 catalysts, have been widely investigated [86][87][88]. In particular, a previous study reported on the preparation of CuO-ZnO-Al 2 O 3 /HZSM-5 hybrid catalysts (CZA/HZSM-5) using different techniques, such as impregnation, co-precipitation-physical mixing method, and a US-assisted co-precipitation procedure [89].…”

Section: Us-assisted Synthesis Of Cu-zno Catalysts and Of Their Impromentioning

confidence: 99%

Microwave, Ultrasound, and Mechanochemistry: Unconventional Tools that Are Used to Obtain “Smart” Catalysts for CO2 Hydrogenation

Manzoli

Bonelli

2018

Catalysts

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Abstract:The most recent progress obtained through the precise use of enabling technologies, namely microwave, ultrasound, and mechanochemistry, described in the literature for obtaining improved performance catalysts (and photocatalysts) for CO 2 hydrogenation, are reviewed. In particular, the main advantages (and drawbacks) found in using the proposed methodologies will be discussed and compared by focusing on catalyst design and optimization of clean and efficient (green) synthetic processes. The role of microwaves as a possible activation tool used to improve the reaction yield will also be considered.

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A new method of low-temperature methanol synthesis on Cu/ZnO/Al2O3 catalysts from CO/CO2/H2

Cited by 135 publications

References 20 publications

Effect of supercritical fluid of CO2 drying during Cu/ZnO catalyst preparation on methanol synthesis from syngas at low temperature

Effect of supercritical fluid of CO2 drying during Cu/ZnO catalyst preparation on methanol synthesis from syngas at low temperature

Optimization through Response Surface Methodology of a Reactor Producing Methanol by the Hydrogenation of Carbon Dioxide

Microwave, Ultrasound, and Mechanochemistry: Unconventional Tools that Are Used to Obtain “Smart” Catalysts for CO2 Hydrogenation

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