劣质渣油加氢脱金属催化剂RDM-36的开发

DEVELOPMENT OF INFERIOR RESIDUE HYDRODEMETALLIZATION CATALYST RDM-36

根据高金属含量劣质渣油加氢反应的特点,通过开发新型载体材料优化催化剂载体的孔结构、采用新的活性组分负载方法提高催化剂的容金属能力、对催化剂表面性质进行改性提高催化剂反应的稳定性等多方面设计,成功开发了新型脱金属催化剂RDM-36。RDM-36催化剂在劣质渣油加氢处理过程中表现出优良的脱金属及沥青转化性能。寿命试验结果表明,RDM-36催化剂可实现固定床工艺条件下对高金属含量劣质原料的长周期加工运转,提高固定床渣油加氢装置对劣质原料油的适应能力。

On the basis of inferior residue hydrotreating mechanism, a novel hydrodemetallization catalyst RDM-36 was developed by developing new alumina material to optimize catalyst pore structure, by using new active component loading method to improve catalyst metal capacity and by modifying surface properties to promote catalyst stability. The new catalyst possesses high activity to remove metal and increase conversion of asphaltene. The stability test shows that the residue having vanadium and nickel content as high as about 200？g/g can be stably hydrotreated by grading series catalyst with RDM-36. It is helpful to increase adaptability to feedstock for RDS unit.