Distribution & Access For Publication Downloads News About Us Contact Us
Paper Titles
Resin Radial and Isothermal Infiltration in Fibrous Media: A New Mathematical Formulation
p.123
Applying Phenomenological Lumped Models in Drying Process of Hollow Ceramic Materials
p.135
X-Band Electromagnetic Characterization of Fe72Al23V5 Based Nanocomposites
p.146
Flexible Poly(imide) Siloxane Block Copolymers to Use at Biomedical Products
p.152
Effect of Catalyst Synthesis Parameters on the Performance of CO2 Hydrogenation to Methanol over SBA-15 Supported Cu/ZnO-Based Catalysts
p.159
Grain Structure and Electrical Properties of Transparent Indium Oxide Thin Films Prepared by RF Magnetron Sputtering
p.170
Features of the Reducibility of Titanomagnetite Iron Ore Materials
p.176
Structure Sensitive Properties of System B2O3- CaO Melts
p.186
Effect of Gradient Layer of TiO2- HA on Properties of the Ha Coated Ti-6Al-4V
p.193

Effect of Catalyst Synthesis Parameters on the Performance of CO2 Hydrogenation to Methanol over SBA-15 Supported Cu/ZnO-Based Catalysts

Article Preview

Abstract:

Bimetallic Cu-ZnO-based catalyst were systematically prepared via impregnation technique under controlled synthesis conditions of active metal loading, ratio of active metal Cu:Zn and synthesis pH. The effect of the synthesis condition on the performance of the Cu-ZnO supported catalysts with respect to the hydrogenation of CO2 to methanol in micro-activity fixed-bed reactor at 250°C, 2.25 MPa, and 75% H2/25%CO2 ratio. The synthesized catalysts were characterized by transmission electron microscopy (TEM) and temperature programmed desorption, reduction, oxidation and pulse chemisorption (TPDRO) and the surface area determination was also performed. The results demonstrate that the catalytic structure, activity, and methanol selectivity was strongly affected by the synthesis parameters. Increasing of synthesis pH from 1 to 7 shows better metal particles distribution, Cu desperation of 29%, higher BET surface area as well as Cu surface area, while further increasing on pH revealed on particles agglomeration and weak metal-support interaction. In addition, increasing of the active metal loading from 5 to 15 % resulted in dramatic increase in the conversion of CO2 and methanol production while further increase caused lower catalytic performance. Moreover, catalyst with total loading of 15%, Cu:Zn ratio of 70:30 synthesized at pH of 7 exhibit higher catalytic activity of 14%, methanol selectivity of 92%, and TOF of 1.24×103 s-1 compared with other catalyst prepared under various conditions

You might also be interested in these eBooks
Recent Progress on Mass Transport Related Processes in Engineering Materials View Preview

Info:

Periodical:

Defect and Diffusion Forum (Volume 400)

Pages:

159-169

DOI:

https://doi.org/10.4028/www.scientific.net/DDF.400.159

Citation:

Cite this paper

Online since:

March 2020

Authors:

Sara F.H. Tasfy*, Noor Asmawati Mohd Zabidi, Maizatul Shima Shaharun, Duvvria Subbarao

Keywords:

Catalyst Synthesis, Characterization, CO2 Hydrogenation, Methanol Synthesis

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

* - Corresponding Author

References

[1] M. Behrens S. Felix, K. Igor, H. Michael, The active site of methanol synthesis over Cu/ZnO/Al2O3 industrial catalysts,, Science 121 (2012) 983-897.

Google Scholar

[2] S. Tasfy, N. Zabidi, M. Shaharun, and D. Subbarao, The Influence of Mn, Zr and Pb Promoters on the Performance of Cu/ZnO/SBA-15 Catalyst for Hydrogenation of CO2 to Methanol,, in Defect and Diffusion Forum 365 (2015) 178-182.

DOI: 10.4028/www.scientific.net/ddf.365.178

Google Scholar

[3] X. Dong, H.-B. Zhang, G.-D. Lin, Y.-Z. Yuan, and K. Tsai, Highly active CNT-promoted Cu–ZnO–Al2O3 catalyst for methanol synthesis from H2/CO/CO2,, Catalysis letters 85 (2003) 237-246.

Google Scholar

[4] Y. Zhang, J. Fei, Y. Yu, and X. Zheng, Methanol synthesis from CO2 hydrogenation over Cu based catalyst supported on zirconia modified γ-Al2O3,, Energy Conversion and Management 47 (2006) 3360-3367.

DOI: 10.1016/j.enconman.2006.01.010

Google Scholar

[5] S. Tasfy, N. Zabidi, M. Shaharun, and D. Subbarao, Methanol production via CO2 hydrogenation reaction: effect of catalyst support,, International Journal of Nanotechnology 14 (2017) 410-421.

DOI: 10.1504/ijnt.2017.082461

Google Scholar

[6] N. Koizumi, X. Jiang, J. Kugai, and C. Song, Effects of mesoporous silica supports and alkaline promoters on activity of Pd catalysts in CO2 hydrogenation for methanol synthesis,, Catalysis today 194 (2012) 16-24.

DOI: 10.1016/j.cattod.2012.08.007

Google Scholar

[7] A. García-Trenco and A. Martínez, A simple and efficient approach to confine Cu/ZnO methanol synthesis catalysts in the ordered mesoporous SBA-15 silica,, Catalysis today 215 (2013) 152-161.

DOI: 10.1016/j.cattod.2013.03.005

Google Scholar

[8] H. Duan, Y. Yang, R. Singh, K. Chiang, S. Wang, Mesoporous carbon-supported Cu/ZnO for methanol synthesis from carbon dioxide,, Australian Journal of Chemistry, 67 (2014) 907-914.

DOI: 10.1071/ch13622

Google Scholar

[9] S. Tasfy, N. Mohd Zabidi, M. Shaharun, D. Subbarao, and A. Elbagir, Carbon Dioxide Hydrogenation to Methanol over Cu/ZnO-SBA-15 Catalyst: Effect of Metal Loading,, in Defect and Diffusion Forum, 380 (2017) 151-160.

DOI: 10.4028/www.scientific.net/ddf.380.151

Google Scholar

[10] N. Zabidi, S. Tasfy, and M. Shaharun, Hydrogenation of CO2 to methanol using copper/zinc oxide-based catalyst: Effect of active metal ratio,, in AIP Conference Proceedings, 1787 (2016) 030009: AIP Publishing.

DOI: 10.1063/1.4968074

Google Scholar

[11] S. Tasfy, N. Zabidi, M. Shaharun, and D. Subbarao, Morphological and textural properties of mesoporous silica synthesized under different conditions,, in AIP Conference Proceedings, 1621 (2014) 579-583: AIP Publishing.

DOI: 10.1063/1.4898525

Google Scholar

[12] Y. Kanai, T. Watanabe, T. Fujitani, T. Uchijima, and J. Nakamura, The synergy between Cu and ZnO in methanol synthesis catalysts,, Catalysis letters 38 (1996) 157-163.

DOI: 10.1007/bf00806562

Google Scholar

[13] L.-C. Wang, Q. Liu, M. Chen, Y. M. Liu, Y. Cao, Structural evolution and catalytic properties of nanostructured Cu/ZrO2 catalysts prepared by oxalate gel-coprecipitation technique,, The Journal of Physical Chemistry C 111 (2007)16549-16557.

DOI: 10.1021/jp075930k

Google Scholar

[14] X. Guo, D. Mao, G. Lu, S. Wang, and G. Wu, CO2 hydrogenation to methanol over Cu/ZnO/ZrO2 catalysts prepared via a route of solid-state reaction,, Catalysis Communications 12 (2011) 1095-1098.

DOI: 10.1016/j.catcom.2011.03.033

Google Scholar

[15] P. Gao, F. Li, L. Zhang, N. Zhao, F. Xiao, W. Wei, Influence of fluorine on the performance of fluorine-modified Cu/Zn/Al catalysts for CO2 hydrogenation to methanol,, Journal of CO2 Utilization 2 (2013)16-23.

DOI: 10.1016/j.jcou.2013.06.003

Google Scholar

[16] P. Gao, F. Li, L. Zhang, N. Zhao, F. Xiao, W. Wei, Influence of Zr on the performance of Cu/Zn/Al/Zr catalysts via hydrotalcite-like precursors for CO2 hydrogenation to methanol,, Journal of Catalysis, 298 (2013) 51-60.

DOI: 10.1016/j.jcat.2012.10.030

Google Scholar

[17] X. Guo, D. Mao, G. Lu, S. Wang, and G. Wu, The influence of La doping on the catalytic behavior of Cu/ZrO2 for methanol synthesis from CO2 hydrogenation,, Journal of Molecular Catalysis A: Chemical 345 (2011) 60-68.

DOI: 10.1016/j.molcata.2011.05.019

Google Scholar

[18] Q.-J. Hong and Z.-P. Liu, Mechanism of CO2 hydrogenation over Cu/ZrO2(2̅12) interface from first-principles kinetics Monte Carlo simulations,, Surface Science, 604 (2010) 1869-1876.

DOI: 10.1016/j.susc.2010.07.018

Google Scholar

Scientific.Net is a registered brand of Trans Tech Publications Ltd
© 2024 by Trans Tech Publications Ltd. All Rights Reserved