免焙烧制备Ti改性的MoP加氢脱氮催化剂  

Preparation of Ti modified MoP hydrodenitrification catalyst without calcination

作　　者：邹洁[1] 王伟[1] 王力 ZOU Jie;WANG Wei;WANG Li(Yinchuan Energy Institute,Yinchuan 750105,China)

机构地区：[1]银川能源学院,宁夏银川750105

出　　处：《天然气化工—C1化学与化工》2020年第5期43-46,52,共5页Natural Gas Chemical Industry

基　　金：宁夏科技重点研发计划(2018BEE03029);宁夏自然科学基金(2019AAC03272);宁夏高等学校科学技术研究项目(NGY2018-250);银川能源学院引进人才启动基金项目(2018-KY-R-01)资助。

摘　　要：采用浸渍法制备MoP/TiO2催化剂前驱体,然后通过氢等离子体法还原制备焙烧和免焙烧的催化剂(分别记为MoP/TiO2-C和MoP/TiO2-NC),并采用XRD技术和N2物理吸附对催化剂进行表征。以质量分数为1.0%的喹啉十氢萘溶液考察了催化剂的加氢脱氮(HDN)反应活性。结果表明:与焙烧的MoP/TiO2-C催化剂比较,免焙烧的MoP/TiO2-NC催化剂比表面积、孔容略大且颗粒尺寸较小;在MoP/TiO2-NC催化剂上,喹啉的转化率高于MoP/TiO2-C,即其具有较高的HDN反应活性,且二者的喹啉转化率均随温度的升高而增加;喹啉在两种催化剂上主要以DHQ(十氢喹啉)路径脱氮。The calcined and non-calcined catalyst precursors were prepared by impregnation, and the calcined and non-calcined MoP/TiO2 catalysts, named as MoP/TiO2-C and MoP/TiO2-NC respectively, were prepared by hydrogen plasma reduction. The catalysts were characterized by XRD and N2 physical adsorption. The hydrodenitrification(HDN) activity of the catalysts were investigated using the decalin solution of quinoline of 1.0% by mass as feed. The results showed that compared with the calcined catalyst MoP/TiO2-C, the non-calcined catalyst MoP/TiO2-NC had larger specific surface area and smaller pore volume and grain size. Over MoP/TiO2-NC, the conversion of quinoline was higher than that over MoP/TiO2-C, indicating that the HDN activity of MoP/TiO2-NC is higher, and the conversions of quinoline over both catalysts increased with the increase of reaction temperature. Over both catalysts,quinoline was mainly denitrogenated via DHQ(decahydroquinoline) path.

关 键 词：免焙烧 氢等离子体法 MoP/TiO2催化剂 喹啉 加氢脱氮 

分 类 号：TE62[石油与天然气工程—油气加工工程]