杂多化合物催化丙烷的选择性氧化  

Study on selectivie oxidation of propane over heteropolycompounds catalysts

作　　者：邓彤彤[1] 余长林[1] 蔡铁军[1] 邓谦[1] 彭振山[1] 彭智[1] 

机构地区：[1]湖南科技大学化学化工系,湖南湘潭411201

出　　处：《化学研究与应用》2004年第2期227-228,共2页Chemical Research and Application

基　　金：湖南省教育厅资助项目 (0 1C2 67)

摘　　要：The Cs0.1Cu0.2HXPVAs0.2Mo10Oy and Fe0.12HXPVAs0.3Mo11Oy catalysts were prepared by impregnation method and characterized by FT-IR and TPR.The propane oxidation on the catalysts were carried out in a continuous flow fixed-bed reactor.The result indicated that,under the conditions:V（N2）∶V（O2）∶V（C3H8）=2.2∶3.6∶1.2 θ=440℃,the catalysts performed in activity to a certain extent:over the catalyst of Cs0.1Cu0.2HXPVAs0.2Mo10Oy,the conversion for propane reach 72.92%,with a selectivity of 6.01% to acrylic acid and 2.91% to acetic acid;over Fe0.12HXPVAs0.3Mo11Oy catalyst,the conversion for propane was only 35.56%,but the selectivity for acrylic was as high as 12.15%,and acetic acid was 18.62%.The result showes that Cu could improve the conversion of propane,but could not inhibit the total oxidation product effectively,while Fe could enhance the selectivity for acrylic and acetic acid,but could not improve the conversion for propane.The Cs_(0.1)Cu_(0.2)H_XPVAs_(0.2)Mo_(10)O_y and Fe_(0.12)H_XPVAs_(0.3)Mo_(11)O_y catalysts were prepared by impregnation method and characterized by FT-IR and TPR.The propane oxidation on the catalysts were carried out in a continuous flow fixed-bed reactor.The result indicated that,under the conditions:V(N_2)∶V(O_2)∶V(C_3H_8)=2.2∶3.6∶1.2 θ=440℃,the catalysts performed in activity to a certain extent:over the catalyst of Cs_(0.1)Cu_(0.2)H_XPVAs_(0.2)Mo_(10)O_y,the conversion for propane reach 72.92%,with a selectivity of 6.01% to acrylic acid and 2.91% to acetic acid;over Fe_(0.12)H_XPVAs_(0.3)Mo_(11)O_y catalyst,the conversion for propane was only 35.56%,but the selectivity for acrylic was as high as 12.15%,and acetic acid was 18.62%.The result showes that Cu could improve the conversion of propane,but could not inhibit the total oxidation product effectively,while Fe could enhance the selectivity for acrylic and acetic acid,but could not improve the conversion for propane.

关 键 词：杂多化合物 丙烷 选择性氧化 催化剂 反应温度 

分 类 号：O623.11[理学—有机化学] O643.36[理学—化学]