CAJ | 학술논문

研究γ-Al2 O3、CeO2和ZrO2负载的Mo基催化剂性质及其甲烷化性能。采用N2物理吸附、H2程序升温还原、X射线衍射和透射电镜对催化剂进行表征，使用固定床，在550℃、3 MPa、5000 h-1、V（H2）：V（CO）=1.0且含有H2S的合成气中对催化剂甲烷化性能进行测试。结果表明，3种载体中，Mo在ZrO2载体上分散度最高，甲烷化反应中Mo/ZrO2催化剂活性最高；CeO2负载的Mo相抗烧结能力最强，甲烷化反应中Mo/CeO2催化剂稳定性最好。
연구γ-Al2 O3、CeO2화ZrO2부재적Mo기최화제성질급기갑완화성능。채용N2물리흡부、H2정서승온환원、X사선연사화투사전경대최화제진행표정，사용고정상，재550℃、3 MPa、5000 h-1、V（H2）：V（CO）=1.0차함유H2S적합성기중대최화제갑완화성능진행측시。결과표명，3충재체중，Mo재ZrO2재체상분산도최고，갑완화반응중Mo/ZrO2최화제활성최고；CeO2부재적Mo상항소결능력최강，갑완화반응중Mo/CeO2최화제은정성최호。
The properties of Mo-based catalysts supported onγ-Al2 O3 ,CeO2 and ZrO2 and their methanation performance were studied. The catalysts were characterized by N2 physical adsorption,H2 temperature-programmed reduction,X-ray diffraction and transmission electron microscopy. The performance of the catalyst for methanation was tested in a fixed bed reactor under the condition of 550℃,3 MPa,5 000 h-1 , V(H2):V(CO)=1. 0 and syngas containing H2S. The results indicated that the dispersion of Mo phase supported on ZrO2 was the highest among three supports and Mo/ZrO2 catalyst possessed the highest activity during the methanation reaction. Furthermore,the sinitering resistant ability of Mo phase supported on CeO2 was the best,and Mo/CeO2 catalyst exhibited the highest methanation stability.