等离子体法低价磷源制备Ni_(2)P及催化性能  

Preparation of Ni_(2)P by hydrogen plasma reduction for low valence of phosphide source and its catalytic performance

作　　者：李岩 于海涛 徐睿 孙鹏伟 王伟[1] LI Yan;YU Hai-tao;XU Rui;SUN Peng-wei;WANG Wei(Chemical and Biological Engineering Institute,Yinchuan University of Energy,Yinchuan 750105,Ningxia,China)

机构地区：[1]银川能源学院化学与生物工程学院,宁夏银川750105

出　　处：《化学工程》2022年第12期17-21,37,共6页Chemical Engineering(China)

基　　金：宁夏高校一般科研项目(NGY2020122);宁夏自然科学基金资助项目(2022AAC03647);宁夏重点研发计划项目(2018BBE03030);国家级大学生创新创业训练计划项目(G202113820001)。

摘　　要：Ni_(2)P具有优异的加氢脱硫活性和稳定性。以NaH_(2)PO_(2)和NiCl_(2)为原料,采用低温氢等离子体还原法制备了Ni_(2)P催化剂。对制备的催化剂进行XRD、热重分析、TPR等表征,研究了所制备Ni_(2)P催化剂的结构特性。以二苯并噻吩(DBT)的十氢萘溶液和喹啉的十氢萘溶液为模型油品,分别考察了所制备Ni_(2)P的加氢脱硫(HDS)和加氢脱氮(HDN)催化性能,研究了Ni_(2)P催化剂的构效关系。由于低温制备,获得高分散Ni_(2)P催化剂,因此具有更高的催化活性。Ni_(2)P has excellent hydrodesulfurization activity and stability.In this work,hydrogen plasma reduction method(PR)was used to prepare the unsupported Ni_(2)P with NaH_(2)PO_(2) and NiCl_(2) as sources.The catalysts were characterized by XRD,TG-DSC and TPR to study the crystal phase.Using decalin solution of dibenzothiophene(DBT)and quinoline as model oils,the hydrodesulfurization(HDS)and hydro-denitrification(HDN)of Ni_(2)P were investigated,and the structural-activity relationship of Ni_(2)P catalyst was studied.Due to low preparation temperature,highly dispersed Ni_(2)P catalyst was obtained with higher catalytic activity.

关 键 词：磷化镍 加氢脱硫 加氢脱氮 氢等离子体还原 

分 类 号：TE624.9[石油与天然气工程—油气加工工程]