制备工艺对Mo/HZSM-5催化剂甲烷脱氢芳构化性能的影响  

Effects of preparation methods on performance of Mo/HZSM-5 catalysts for methane dehydro-aromatization

作　　者：张华 张伟 

机构地区：[1]陕西延长石油(集团)有限责任公司研究院,陕西西安710065

出　　处：《天然气化工—C1化学与化工》2017年第6期44-45,85,共3页Natural Gas Chemical Industry

基　　金：陕西延长石油(集团)有限责任公司"308科研攻关项目研究"(ycsy2013ky-A-15)

摘　　要：采用室温浸渍抽滤工艺、室温浸渍旋蒸工艺和室温球磨浸渍工艺三种方法制备了Mo/HZSM-5催化剂,并在流化床反应装置上对催化剂上的甲烷芳构化反应性能进行了考察。结果表明,与室温浸渍抽滤工艺相比,用室温浸渍旋蒸工艺和室温球磨浸渍工艺所制备的催化剂Mo物种的担载量较高,并具有较高的甲烷转化率(分别为16%~19%和18%~21%)、总芳烃选择性(分别为85%和83%)和较低的磨损指数(分别为0.71%/h和0.85%/h)。The Mo/HZSM-5 catalysts were prepared by three different room temperature methods, impregnation-suction filtration, impregnation-rotary evaporation and ball milling-impregnation, and the properties of methane aromatization on the catalysts were investigated in a fluidized bed reactor. The results showed that compared with the impregnation-suction filtration method, the impregnation-rotary evaporation and ball milling-impregnatian methods provided higher Mo loadings, and the catalysts prepared by the two methods exhibited higher methane conversion （16%- 19% and 18%-21%, respectively）, total aromatics selectivity （85% and 83%, respectively） and lower wear index （0.71%/h and 0.85%/h, respectively）.

关 键 词：催化剂 HZSM-5分子筛 制备工艺 甲烷 芳构化 

分 类 号：O643.3[理学—物理化学] TQ426[理学—化学]