Study on hydrogenation of fatty acid methyl ester catalyzed by Cu-Zn-Al catalyst

Abstract The effect of copper loading and Cu-Zn ratio on the hydrogenation of methyl laurate to fatty alcohol over Cu-Zn-Al catalyst was studied. The results show that Cu-Zn-Al catalyst has excellent hydrogenation activity of fatty acid methyl ester. Under the conditions of 5 MPa, 190 ℃ and 2 h^-1, the conversion of fatty acid ester and selectivity of fatty alcohol are up to 78.87% and 89.14%, respectively, which are much higher than Cu/Al₂O₃ and Cu/ZnO catalysts. The reason is that the Cu-O-Zn site generated by the interaction between zinc species and copper species improves the catalytic activity of Cu⁰, with a high TOF value (27.5 h^-1). Aluminum species as a structural promoter improve the specific surface area and enhances the stability of the catalyst. When the temperature is increased to 210 ℃, the conversion of methyl laurate and the selectivity of lauryl alcohol can be up to 99%, showing high catalytic performance and application value.

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	JIANG Feng
	XU Yunqiang
	XU Yan
	ZHAO Yujun

Keywords： Cu-Zn-Al fatty acid ester hydrogenation fatty alcohol

Received 2023-02-12;

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JIANG Feng, XU Yunqiang, XU Yan, ZHAO Yujun.Study on hydrogenation of fatty acid methyl ester catalyzed by Cu-Zn-Al catalyst[J] Chemcial Industry and Engineering, 2024,V41(5): 154-163

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