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设计实验证明了Ni2P和MoS2催化剂在喹啉加氢脱氮反应中存在协同效应,该协同效应能够用氢溢流遥控模型理论解释。Ni2P//MoS2的协同因子随反应温度升高而减小,并且略微大于相同反应条件下NiSx//MoS2的协同因子。Ni2P产生的溢流氢能够提高MoS2催化剂上加氢活性位的数量,促使Ni2P//MoS2催化体系增加1,2,3,4-四氢喹啉和5,6,7,8-四氢喹啉加氢生成十氢喹啉的速率,提高其脱氮活性;因此,Ni2P对MoS2催化剂是很好的助剂。
The design experiment proves that Ni2P and MoS2 catalysts have synergistic effect in quinoline hydrodenitrogenation reaction, and this synergistic effect can be explained by hydrogen overflow remote control model theory. The synergistic factor of Ni2P // MoS2 decreases with the increase of reaction temperature and is slightly larger than the synergistic factor of NiSx // MoS2 under the same reaction conditions. Hydrogen overflow generated by Ni2P can increase the number of hydrogenation active sites on MoS2 catalyst and promote the increase of 1,2,3,4-tetrahydroquinoline and 5,6,7,8-tetrahydroquinoline in Ni2P / MoS2 catalytic system Hydrogenation of quinoline to decahydroquinoline increases its denitrification activity; therefore, Ni2P is a good promoter for MoS2.