【摘要】 通过程序升温氮化法制备了纯态双金属Ni2Mo3N,并用等体积浸渍和程序升温氮化法制备了Ni2Mo3N/Hβ催化剂。采用XRD和TPD方法分别表征了催化剂的结构和酸性。以质量比为5∶4∶1的十氢萘、对二甲苯和萘的混合原料作为探针体系,考察温度和空速对Ni2Mo3N/Hβ催化剂上芳烃饱和与开环反应活性的影响。结果表明,在330℃、3.0MPa、体积空速1.0h-1、氢/油体积比600的缓和条件下,萘的加氢饱和转化率为100%,总加氢开环选择性可达97%,总产物液体收率大于95%。更多还原

【Abstract】 Bulk Ni 2Mo 3N was synthesized by the method of TPN (temperature programmed nitride), and Ni 2Mo 3N/H β catalyst was prepared by using an incipient impregnation and TPN methods. The structure and acidity of the catalysts were characterized by X ray diffraction and NH 3 temperature programmed desorption (TPD) techniques respectively. Influences of temperature and liquid hourly space velocity (LHSV) on Ni 2Mo 3N/H β catalyst activity were investigated with the mixture of 40% p xylene, 50% decalin and 10% naphthalene as the feedstock. The experimental results showed that the naphthalene conversion was 97% and the total selectivity of ring opening was 97%, while the liquid yield was above 95% under the conditions of LHSV 1.0 h -1 , temperature 330℃ and pressure 3.0 MPa.更多还原