CAJ | 학술논문

为开发绿色无污染、经济性能优良的炔化催化剂，采用共沉淀法制备一种新型的 CuO -FeO/ SiO2- MgO 催化剂，采用电感耦合等离子体发射光谱仪、低温 N2物理吸附-脱附、X 射线衍射、H2程序升温还原对催化剂组成、结构及织构进行表征，研究 Fe 助剂对 CuO/ SiO2- MgO 催化剂结构及炔化性能的影响。结果表明，与催化剂 CuO/ SiO2- MgO 相比，FeO 的引入使催化剂中 CuO的可还原性提高，在反应过程中 CuO 更易生成活性物种 Cu +的炔化物，CuO - FeO/ SiO2- MgO 催化剂表现出较高的甲醛乙炔化性能。
위개발록색무오염、경제성능우량적결화최화제，채용공침정법제비일충신형적 CuO -FeO/ SiO2- MgO 최화제，채용전감우합등리자체발사광보의、저온 N2물리흡부-탈부、X 사선연사、H2정서승온환원대최화제조성、결구급직구진행표정，연구 Fe 조제대 CuO/ SiO2- MgO 최화제결구급결화성능적영향。결과표명，여최화제 CuO/ SiO2- MgO 상비，FeO 적인입사최화제중 CuO적가환원성제고，재반응과정중 CuO 경역생성활성물충 Cu +적결화물，CuO - FeO/ SiO2- MgO 최화제표현출교고적갑철을결화성능。
In order to develop a kind of acetylene catalyst with green,no pollution,lower cost and excellent performance,a novel CuO-FeO/ SiO2-MgO catalyst was prepared via coprecipitation method. The composition,structure and texture properties of the catalyst were characterized by means of inductively coupled plasma-atomic emission spectroscopy,N2 absorption-desorption,X-ray diffraction and H2 temperature-programmed reduction methods. The effect of iron promoter on the structure and catalytic performance of CuO/ SiO2-MgO catalyst for formaldehyde ethynylation was investigated. The results showed that compared with CuO/ SiO2-MgO catalyst,the introduction of FeO improved the reducibility of CuO in CuO-FeO/SiO2-MgO catalyst,making Cu2 + species be easily converted to Cu + alkyne compound during the reaction. CuO-FeO/ SiO2-MgO catalyst exhibited good performance for formaldehyde ethynylation.