合成气制低碳混合醇耐硫钼基催化剂的制备研究

本文考察了不同制备方法和制备程序制得之MoSx-K^ /Si O2催化剂对合成转化为低碳混合醇的催化性能，探讨不同助剂（包括K2 CO3，KF，DC1等）对催化剂活性和选择性的影响，首次报道以K2MoS4作为前驱物料制得的MoSx-K^ /SiO2催化剂具有与（NH4）2MoS4- K2CO3/SiO2和法生得到的催化剂几乎一样高的催化活性 和选择性 ，其结果为具有实用意义的催化剂的研制提供依据。

STUDY ON THE PREPARATION OF SULFUR-RESISTANT MoSx-BASED CATALYSTS FOR SYNTHESIS OF MIXED ALCOHOLS FROM SYNGAS

The catalytic behaviors of sulfur-resistant MoS_X-based catalysts for the synthesis of mixed alcohols from syngas,prepared by different procedures or derived from different precursors,have been investigated. The results indicated that the basicity of potassium salts used as promoters and the sequence of their doping have considerable infleunce on the activity of the catalysts. The K_2MoS_4-derived catalysts showed activity and selectivity almost as high as those of the (NH_4)_2MoS_4-K_2CO_3-derived catalysts,These results have useful implications concerning the nature of active phase of the catalysts.