【摘要】 通过对镍基稀土改性催化剂TPR的研究 ,结果表明稀土氧化物La2 O3 添加到Ni/α -Al2 O3 中改变了镍铝的相互作用 ,添加CeO2 、MgO助剂能够有效地提高活性组份镍的分散度。更多还原

【Abstract】 The role of additions of rare earth oxide（La₂O₃,CeO₂）and alkaline earth oxide （MgO） of Ni-based catalysts have been investigated using TPR. The results show that the addition of La₂O₃ promoter to Ni-based catalyst can change the interaction of Ni and Al,the addition of CeO₂ and MgO promoters to Ni-based catalyst can increase the dispersing extent of active composition-Ni.更多还原