【摘要】 在固定床流动反应装置上对不同工艺制备的镍基催化剂从活性、稳定性、抗积炭性三个方面进行了评价。试验表明，适合于该转化反应的催化剂各组份的最佳质量分数为Ｎｉ ３－５ ％ ～６－０ ％ 、ＲＥ２ Ｏ３ ５－６ ％ ～６－０ ％ 、ＭｇＯ ６－２ ％ ～７－１ ％ 。添加适量的ＭｇＯ 可提高活性组份Ｎｉ 的分散度，从而提高其活性和抗积炭性。用ＴＰＲ、ＸＲＤ 测定了催化剂中活性组份与载体之间的相互作用和晶体结构，并结合测试结果对催化剂性能加以说明。更多还原

【Abstract】 The activity stability and resistance to carbon deposition of Ni-based catalysts prepared by different methods were investigated using a continuous flowing fixed-bed reactor.The result shows an optimum mass percentage of Ni 3 5%～6 0%,RE 2O 3 5 6%～6 0%,MgO 6 2%～7 1%.The addition of an appropriate amount of MgO can improve the dispersity of active Ni component and thereby improve the catalyst’s activity and resistance to carbon deposition.The mutual effects of the active components were determined by TPR and XRD techniques.The performance of the catalyst has been demonstrated with the results.更多还原