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V_2O_5/MPO_4在丙烷氧化脱氢中的催化作用
Authors
万惠霖
古萍英
+3 more
张伟德
李基涛
沙开清
Publication date
20 March 1999
Publisher
Abstract
研制了具有不同酸碱性的磷酸盐MPO4(M=Al,Zr,Ca)载体,并用这些载体负载06%~60%的V2O5。所制备的催化剂在丙烷氧化脱氢反应中具有较好的催化性能,如3%V2O5/Ca3(PO4)2催化剂在丙烷转化率为170%时,丙烯选择性可达559%,丙烯收率达95%。考察了不同反应条件下催化剂的性能,表明在高温高空速条件下,3%V2O5/Ca3(PO4)2催化剂的反应活性较好,而3%V2O5/Zr3(PO4)4催化剂在低温低空速时,反应活性相对较高。在相同的丙烷转化率下,丙烯的选择性从大到小的顺序为3%V2O5/Ca3(PO4)2>3%V2O5/Zr3(PO4)4>3%V2O5/AlPO4
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Last time updated on 16/06/2016