Sr-La_2O_3系催化剂上甲烷氧化偶联反应的研究  

OXIDATIVE COUPLING OF METHANE OVER SrLa 2O 3 CATALYSTS

作　　者：李哲[1] 邵一波[2] 

机构地区：[1]太原工业大学应用化学系 [2]华北工学院化学工程系

出　　处：《燃料化学学报》1997年第2期189-192,共4页Journal of Fuel Chemistry and Technology

摘　　要：ＳｒＬａ２Ｏ３系催化剂上甲烷氧化偶联反应的研究李哲（太原工业大学应用化学系）邵一波（华北工学院化学工程系）关键词甲烷，氧化偶联，氧化镧，催化性能，锶组分甲烷氧化偶联是天然气有效利用的重要研究课题。其催化剂的研究工作，已有许多报道。其中稀土金属化合物...The catalytic performance of SrLa 2O 3 catalysts for oxidative coupling of Methane has been studied under varied experimental conditions The results showed that the catalysts exhibted much better catalytic activation with the concentration of 15￣28% of components Sr The bulkphase and surface properties were determined by XRD, BET and CO 2TPD respectively The results also showed that the Sr existed in different phase, SrO 2, SrO and SrCO 3 while changing its concentration The weak SrO phase may be favor the formation of surface species Based the lower catalytic activity of SrO 2 phase, it can be inferred that O 2 2 ion can not be the active species of SrLa 2O 3 catalysts According to the CO 2TPD, a combination of appropriate amount of strong basic sites and ting amount of medium basic sites may be the best surface character in favor of the formation of active sites on the catalyst surface

关 键 词：甲烷 氧化偶联 氧化镧 锶 催化剂 天然气 催化 

分 类 号：O621.254.1[理学—有机化学] O623.11[理学—化学]