摘要
探讨了Fe/MnO ZnZSM 5 (n(SiO2 ) /n(Al2 O3 ) =5 0 )双功能催化剂上合成气直接转化为芳烃的反应 ,考察了反应温度和Zn载量对CO转化率及芳烃选择性的影响 .结果表明 ,Fe/MnO ZnZSM 5具有良好的合成气芳构化性能 ,在V(CO) ∶V(H2 ) ∶V(Ar) =3∶6∶1,SV =16 0 0h-1,p =1 1MPa ,T =5 43K的条件下 ,CO转化率可达到 98 1%,芳烃产物选择性可高达 5 3 1%.催化剂经 6 0h运转后 ,CO转化率仅降低 0 5 %,显示了良好的稳定性和应用前景 .
The direct conversion of syngas into aromatics over bifunctional Fe/MnO-ZnZSM-5 (n (SiO2)/n(Al2O3) = 50) catalyst was investigated. Compared with Fe/MnO, Fe/MnO-ZnZSM-5 showed excellent catalytic performance in this reaction, CO conversion approached 98.1% and aromatics selectivity was as high as 53.1% under the conditions of V(CO): V(H-2): V(Ar) = 3:6: 1, SV = 1600 h(-1), p = 1.1 MPa and T = 543 K. The reaction temperature 543 K was suggested optimum. The aromatization activity increased with increasing Zn loading from 1.5% to 7.0%. After 60 h time-on-stream, the CO conversion decreased only by 0.5% under the original value, which demonstrated a good prospect for industrial application of this bifunctional catalyst.
出处
《催化学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第4期333-335,共3页
