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%。
Bulk Ni2Mo3N was synthesized by the method of TPN (temperature programmed nitride), and Ni2Mo3N/Hβ 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 NH3 temperature programmed desorption (TPD) techniques respectively. Influences of temperature and liquid hourly space velocity (LHSV) on Ni2Mo3N/Hβ 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°C and pressure 3.0 MPa.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2005年第2期23-27,共5页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
国家自然科学基金资助项目(20273035
20233030
20403009)
南开大学科技创新基金资助项目
关键词
HΒ分子筛
Ni2Mo3N
芳烃饱和
加氢
开环
Catalyst activity
Hydrogenation
Naphthalene
Temperature programmed desorption
X ray diffraction analysis
Zeolites
