Ni/MCM-41催化剂上CH_4-CO_2重整反应的初步研究

Preliminary study on CO_2-reforming of methane over Ni/MCM-41 catalyst

对Ni/MCM 4 1、Ni/SiO2 和Ni/γ Al2 O3 进行活性评价 ,结果表明 ,MCM 4 1是一种很好的载体 ,在低温高空速下具有较高的催化活性。短期稳定性试验以及XRD和TEM对Ni/MCM 4 1的表征结果表明 ,Ni/MCM 4 1催化剂在反应过程中所产生的微量水可能导致中孔分子筛骨架的倒塌 ,从而导致催化剂的失活。

Ni/MCM 41?Ni/SiO 2 and Ni/γ Al 2O 3 catalysts were prepared and their catalytic performance in CO 2 reforming of CH4 to syngas was examined The experimental results indicated that MCM 41 is a good supporte It exhibited better catalytic performance at lower temperature and higher GHSV Stability test?XRD and TEM results show that Ni/MCM 41 lost its activity because of the collapsing of the framework of MCM 41