焙烧条件对新型磷化钨催化剂加氢活性影响的研究

以磷酸氢二铵和偏钨酸铵为原料，采用不同条件焙烧处理高纯氢气程序升温还原磷钨酸盐的方法制备了一系列负载型和非负载型磷化钨催化剂， 并对合成的催化剂进行了BET和XRD表征， 通过高压微反装置，以噻吩、吡啶、环己烷混合溶液为模型化合物，同时对磷化钨催化剂的噻吩加氢脱硫 （HDS）和吡啶加氢脱氮（HDN）活性进行了评定，着重考察了磷化钨催化剂前体的焙烧温度和焙烧时间等制备条件对催化剂结构和加氢精制催化活性的影响，为新型磷化钨催化剂的进一步研究开发及工业化发展奠定基础。

Effect of calcination conditions on the properties of a new tungsten phosphide catalyst for hydroprocessing

A series of bulk and alumina-supported tungsten phosphide catalysts were prepared by reducing phosphate precursors in a flow of high purity H_2 under different calcination conditions.The catalysts were characterized by BET surface area measurements and X-ray diffraction.The activities of the catalysts were studied in a high pressure micro-reactor using a model liquid feed consisting of thiophene,pyridine and cyclohexane.The effect of varying calcination temperatures and calcination time on catalyst structure and hydropressing performance in simultaneous hydrodesulfurization and hydrodenitrogenation was investigated.The results provide successful guidelines for further research and the development of practical applications of tungsten phosphide catalysts.