载体特性对催化裂化催化剂性能的影响

Effect of supporter on catalytic performance of fluid catalytic cracking catalyst

研究了制备流化催化裂化(FCC)催化剂常用载体的孔结构、酸性特点和反应性能,结果表明胶溶双铝载体和高岭土原位晶化载体具有适合制备重油FCC催化剂的条件．将胶溶双铝载体和高岭土原位晶化载体分别制备成FCC催化剂,采用固定流化床反应器对其反应性能进行了评价,表明采用原位晶化载体制备的FCC催化剂具有更好的重油转化能力．

The effects of four different supporters on the catalytic performance of fluid catalytic cracking （FCC） catalysts were investigated. The supporters were characterized by N2 adsorption-desorption and IR spectroscopy. These analyses reveal that the two supporters, sol-alumina modified and in-situ synthesized kaolin ones, have potential advantages during cracking reaction because of their physicochemical characteristics. FCC catalysts were made with the above supporters respectively. The reaction testing results indicate that the catalyst prepared by in-situ synthesized kaolin is more adaptive for heavy oil cracking.