Selecting either fixed bed hydrodesulfurizing or suspended bed hydrcracking depends on both characteristics of feedstocks and products. 在加工渣油时选用固定床加氢脱硫工艺还是悬浮床加氢裂化工艺，应根据所用原料的性质和加工的目的而定。
For synthesis of cumene used benzene with propylene a fixed bed catalytic distillation column and a suspension catalytic distillation column is respectively simulated. 分别对苯与丙烯烷基化合成异丙苯的固定床和悬浮床精馏塔进行了模拟计算。
