氢等离子体法制备Ni_2P催化剂及加氢脱硫性能  

Synthesis of Ni_2P by reduction in hydrogen plasma and its hydrodesulfurization performance

作　　者：王伟[1,2] 王安杰[1,3] 李翔[1,3] 王超[2] 

机构地区：[1]大连理工大学精细化工国家重点实验室,辽宁大连116012 [2]银川能源学院,宁夏银川750105 [3]辽宁省省级高校石油化工技术与装备重点实验室,辽宁大连116012

出　　处：《化学工程》2015年第2期16-19,共4页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(20773020;20973030;21073022;21173033和U116220320503003);宁夏自然科学基金资助项目(NZ12230);宁夏高校科研专项基金资助项目(2013230)

摘　　要：采用氢等离子体还原法制备了体相Ni2P,新鲜制备的Ni2P在移入固定床反应器之前用体积分数10%H2S/Ar钝化,以保护其结构不被破坏。实验证明:氢等离子体(PR)还原法制备的Ni2P催化剂的加氢脱硫活性高于程序升温还原(TPR)法制备的催化剂。XRD表征结果表明,氢等离子体还原法制备的Ni2P的粒度较小,活性中心较多,其高活性可归于其活性中心数量的增加。氢等离子体还原法制备的Ni2P具有良好的反应稳定性。The bulk Ni2P was synthesized by means of hydrogen plasma reduction（ PR）. A mixture of 10% H2S in Ar was used to passivate the freshly-synthesized Ni2P to protect their crystal structures before entering the fixed bed reactor. The experimental results show that their catalytic performances are higher in the hydrodesulfurization（ HDS） than those prepared by the conventional temperature-programmed reduction（ TPR） method. XRD characterization results reveal that there exist more active sites in the PR-synthesized Ni2P than in the TPRsynthesized ones due to the decreased particle sizes of the PR-synthesized Ni2P. The PR-synthesized Ni2P exhibits a good stability during HDS reaction.

关 键 词：氢等离子体 还原 NI2P 二苯并噻吩 加氢脱硫 

分 类 号：TE624.9[石油与天然气工程—油气加工工程]