Synergistic effect of W and P on ZSM-5 and its catalytic performance in the cracking of heavy oil

查看全文 作　　者：Dongmin [1]Han;Nannan [1]Sun;Jianwei [1]Liu;Chunyi [1]Li;Honghong [1]Shan;Chaohe [1]Yang

机构地区：[1]State Key Laboratory of Heavy Oil Processing, China University of Petroleum (East China)

出　　处：《Journal of Energy Chemistry》索引2014年第23卷第4期,共8页

基　　金：supported by 973 Program 摘　　要：In order to develop the conversion of heavy oil with a high yield of propylene in the catalytic cracking process, ZSM-5 zeolite was modified by tungsten and phosphorus, which was proved to be an effective method. Characterization results show that the improvement of catalytic performance could be correlated to the interaction of phosphorus and tungsten species on ZSM-5. P inhibited the aggregation of tungsten species on ZSM-5 and was conductive to convert the tungsten species with octahedral coordination into tetrahedral coordination. And this ultimately led to that more acid sites were reserved after hydrothermal treatment in the tungsten and phosphorus co-modified ZSM-5 catalyst.Phosphorus species played an important role to restrain the dehydrogenation activity of tungsten. In addition, a model reflecting the interaction between tungsten species and ZSM-5 framework was proposed. 关键词：ZSM-5沸石催化性能协同作用重油 ZSM-5催化剂裂化相互作用裂解过程

相关文献

参考文献（13）
引证文献（5）
耦合文献（65）

参考文献(13)

引证文献(5)

耦合文献(65)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Synergistic effect of W and P on ZSM-5 and its catalytic performance in the cracking of heavy oil

参考文献(13)

引证文献(5)

耦合文献(65)

用户提示