《Sn助剂对Pt_Sn_Al_2O_3催化剂上C_12_正构烷烃脱氢反应的影响》.pdf

38 4 V .l 38 N . 4 2010 8 J urnal f Fuel Chem istry and T echn l gy A ug. 2010 : 0253-2409( 2010) 04-0452-06 Sn Pt-Sn/-Al O C 2 3 12 何松波, 毕文君, 赖玉龙, 荣 欣, 杨 旭, 孙承林 (, , 116023) : , -CO X , Sn Pt-Sn / -A l O , Pt-Sn / 2 3 -A l O SnPt3, Sn, , 2 3 Pt, Sn, , Sn, : ; ; Pt-Sn; : O643. 32 /TQ426. 92 : A Effect of Sn promoter on theperformance of Pt-Sn/-AlO catalysts forn-dodecane dehydrogenation 2 3 HE S ng-b , BIW en-jun, LA IYu-l ng, RONG X ing, YANG Xu, SUN Cheng-lin (DalianN ationalLaboratoryf or Clean Energy, Dalian Institute of Chem icalPhysics, ChineseAcademy of Sciences, Dalian 116023, China) Abstract: The effect f Sn pr m ter n the perf rmance f Pt-Sn/ -A l O catalysts f r the l ng-chain paraffins 2 3 dehydr genati n t m n - lefins w as stud ied by n-d decane dehydr genati n. The catalysts w ere characterized by N2 ads rpti n-des rpti n, mercury intrusi n p r smi etry, CO pulse chem is rpti n, X-ray ph t electr n spectr sc py and therm gravmi etric analysis. Resu lts sh w that the Pt-Sn/-A l O catalysts exh ib it the ptmi al 2 3 catalytic perf rmance when the SnPt ( at m ic rati ) f the catalyst is 3. W h ile keep ing n increasing the am unt f 0 Sn, the