１前言自８０年代以来，催化裂化原料油已由传统的ＶＧＯ逐步转向了渣油或掺渣油进料。由于渣油中含有较多的胶质和沥青质，严重地影响了催化剂的反应性能，因此开发适合于重质油转化的催化裂化催化剂或工艺已为广大炼油工业者所关注。在裂化催化剂中添加助剂，可以加强催... 1 Introduction Since the 1980s, the catalytic cracking feedstock has been gradually shifted from the traditional VGO residue or residue oil feed. Because residue contains more gum and asphaltene, which seriously affect the performance of the catalyst, the development of FCC catalyst or process suitable for conversion of heavy oil has been of concern to the majority of oil refining industry. Add additives in the cracking catalyst, can enhance the reminder ...