Impact of K and Ba promoters on CO2hydrogenation over Cu/Al2O3catalysts at high pressure

Bansode, Atul; Tidona, Bruno; Rohr, Philipp Rudolf von; Urakawa, Atsushi

doi:10.1039/c2cy20604h

Cited by 140 publications

(93 citation statements)

References 70 publications

(82 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…They showed that the formation of methyl formate is observed at low temperatures. The selectivity towards methyl formate decreases from 0.2 to practically 0.0% with a temperature increase from 473 to 503 K [26]. The present work shows the same trend in methyl formate selectivity with the temperature for the ternary Cu/ZnO/Al 2 O 3 catalyst.…”

Section: Resultssupporting

confidence: 70%

“…The possibility of unexpected shutdown of one of the ovens during steel production cannot be excluded. So far, Bansode et al [26] carried out an experiment on the Cu/Al 2 O 3 catalyst at different temperatures (443-553 K °C) and pressures (4-360 bar). They showed that the maximum value of the CO 2 conversion is 29.6% at 360 bar and 553 K. However, for every new pressure conditions the new catalyst was placed in the reactor.…”

Section: Resultsmentioning

confidence: 99%

“…Urakawa and co-workers [26] performed methanol synthesis in the temperature range of 443-553 K, a pressure of 30 bar, and ratio of H 2 :CO 2 = 3.8:1 over a Cu/Al 2 O 3 catalyst. They showed that the formation of methyl formate is observed at low temperatures.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Methanol Synthesis from Industrial CO2 Sources: A Contribution to Chemical Energy Conversion

et al. 2017

View full text Add to dashboard Cite

catalyst can operate in a stable way without the presence of carbon monoxide in the feed, which means that increased water contents in the product gas cannot destroy the catalyst's performance completely. The presence of benzene in the feed does not lead to a deactivation of the catalyst. With these findings methanol production starting from exhaust gases from steel mills seems to become an interesting alternative for sustainable methanol production.Abstract CO 2 hydrogenation as a route for the chemical energy storage over a commercial Cu/ZnO/Al 2 O 3 catalyst has been studied. To check the optimal conditions for an efficient methanol production the influence of temperature and space velocity on the catalytic performance has been demonstrated. Time-on-stream measurements in the absence and the presence of benzene in the gas feed mixture were performed to investigate the possibility to use alternative carbon sources, which contain traces of aromatics. The

show abstract

Section: Resultssupporting

confidence: 70%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Methanol Synthesis from Industrial CO2 Sources: A Contribution to Chemical Energy Conversion

et al. 2017

View full text Add to dashboard Cite

show abstract

“…(2)) that incurs further hydrogenation to generate methanol (Eq. (3)) [11]. The methanol formation is an exothermal reaction with reduction of reaction molecule.…”

Section: Co 2 Hydrogenation To Methanolmentioning

confidence: 99%

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

View full text Add to dashboard Cite

-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.

show abstract

“…The cycling parameters and gas composition used for the cycling experiments are summarized in The former is assigned to the reduction of well dispersed CuO to Cu 0 [17,18], while the latter is associated with the reduction of CuAl 2 O 4 (also detected by XRD, see orbital [19,20]. As a result, upon CO chemisorption back-donation of electron density from the Pt 5d orbital to CO (2π*) is increased, leading to a red shift in the CO vibration [19].…”

Section: Catalytic Propertiesmentioning

confidence: 99%

Non-thermal plasma enhanced NSR performance over Pt/M/Ba/Al2O3 (M = Mn, Co, Cu) catalysts

Bai

Zhang

Chen

et al. 2017

Chemical Engineering Journal

View full text Add to dashboard Cite

Non-thermal plasma enhanced NSR performance over Pt/M/Ba/Al 2 O 3 (M = Mn, Co, Cu) catalysts, Chemical Engineering Journal (2016), doi: http://dx. AbstractTo improve the NO x storage capacity (NSC) of lean NO x trap (LNT) catalysts of the Pt/BaO/Al 2 O 3 type, the catalyst was doped with redox active transition metals of Mn, Co, or Cu, respectively. Due to differences in the chemical states of the doped metals, the catalysts exhibited different catalytic behaviors. Co and Mn doped catalysts showed improved NO to NO 2 oxidation ability, and therefore enhanced NO x storage capacities, which led to the increased cycle averaged NO x conversions as compared to a Pt/Ba/Al 2 O 3 reference. However, being limited by NO x reduction in rich phase, the NO x conversions were still poor at low temperatures (<250 o C). By employing an H 2 -plasma in rich phase to assist NO x reduction, NO x conversions were greatly enhanced especially for low temperatures (≤250 o C). The best properties were achieved over Pt/Co/Ba/Al 2 O 3 catalyst which exhibited NO x conversions higher than 80% in the whole temperature range (150 to 350 o C) and best SO 2 resistance abilities.

show abstract

Impact of K and Ba promoters on CO₂hydrogenation over Cu/Al₂O₃catalysts at high pressure

Cited by 140 publications

References 70 publications

Methanol Synthesis from Industrial CO2 Sources: A Contribution to Chemical Energy Conversion

Methanol Synthesis from Industrial CO2 Sources: A Contribution to Chemical Energy Conversion

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

Non-thermal plasma enhanced NSR performance over Pt/M/Ba/Al2O3 (M = Mn, Co, Cu) catalysts

Contact Info

Product

Resources

About