丁醛气相加氢催化剂的研究及工业应用

Study on the catalyst for hydrogenation of butyraldehyde to butanol and its industrial application

介绍了一种铜锌系丁醛气相加氢制丁醇的催化剂，并对催化剂的制备方法及加氢工艺条件进行了考察，得到了最佳的工艺条件：反应进口温度125～130℃，反应压力0．4～0．5MPa，原料液空速0．40h-1左右。在此条件下，丁醛的转化率在98％以上，丁醇的选择性在99％以上。进行了催化剂的放大制备和工业应用试验，成功替代进口催化剂，表现出良好的加氢性能和选择性，能够适应丁醇装置高负荷、长周期运行的需要。

The Cu-Zn-based catalyst for hydrogenation of butyraldehyde to butanol is prepared and the preparation methods and hydrogenation conditions are investigated. The optimum reaction conditions are obtained as followed： the inlet temperature is 125 -130℃ , the pressure is 0.4 -0.5 MPa and the space velocity of raw material is about 0.40 h^-1 . Under the above conditions, the conversion of butyraldehyde and the selectivity for butanol can reach above 98 % and 99 % respectively, The bulk production and industrial application of the catalyst are studied. The results show that the catalyst has good performances and long life, which can replace imported catalyst successfully; and it can be run in high load and long operation period of butanol unit.