Higher Alcohols Synthesis from CO2 Hydrogenation over K2O-Modified CuZnFeZrO2 Catalysts

Wei Guo; Wen Gui Gao; Hua Wang; Jun Jie Tian

doi:10.4028/www.scientific.net/AMR.827.20

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 827Higher Alcohols Synthesis from CO2 Hydrogenation...

Higher Alcohols Synthesis from CO₂ Hydrogenation over K₂O-Modified CuZnFeZrO₂ Catalysts

Abstract:

The CuZnFeZrO₂catalysts were synthesized by co-precipitation method.,and then used to synthesize different content of K₂O modified CuZnFeZrO₂ catalysts by deposition-precipitation method.Hydrogenation of CO₂ to higher alcohols over (K₂O)_x/CuZnFeZrO₂ catalysts were investigated at 523 K,3.0 MPa and 3000 h^-1.These catalysts were characterized by X-ray diffraction (XRD),temperature programmed reduction of H₂ (H₂-TPR),and temperature-programmed desorption of CO₂ (CO₂-TPD).The results showed the addition of an appropriate amount of Potassium to the CuZnZrO₂ catalysts improved catalytic activity ,the space time yield (STY) and C²⁺OH selectivity. When the Fe content is 5% best, at this time the space time yield of selectivity and alcohol of C²⁺ alcohol reaches the maximum value, this time space and time conversion rate is 0.32g/ml·h.

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Advanced Materials Research (Volume 827)

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20-24

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.827.20

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Online since:

October 2013

Authors:

Wei Guo, Wen Gui Gao, Hua Wang, Jun Jie Tian

Keywords:

(K₂O)_x/CuZnFeZrO₂ Catalysts, Carbon Dioxide, Higher Alcohols, K

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