preferred , prior , underlying
For FCC resid processing, USY zeolite is perferred because of its superior hydrothermal stability, vanadium resistance and coke selectivity compared to conventional zeolites.
超稳y分子筛的水热稳定性、抗钒性能和焦炭选择性都优于传统的沸石，适合作为渣油FCC催化剂的活性主体。
youdao
应用推荐
模块上移
模块下移
不移动