The influences of composition and structure of catalysts and cracking conditions on catalytic activity are also discussed.Further key study areas in catalytic cracking of tars are presented.

• 分析了不同催化剂的优缺点及催化机理，讨论了催化剂的组成、结构以及催化裂解条件对催化效果的影响，展望了未来焦油催化裂解的研究重点。