Abstract：
Due to the existing of partially wetting phenomenon,the paritally wetted trickle bed operated under low liquid velocity region features differently from those wholly wetted ones,and the mechanism is also more complex.In this paper,the advances and the problems to be solved are reviewed.The recent progresses are encouraging on the description of wetting mechanism and multi—phase flow in trickle bed,the influences from which on the modeling of partially wetting trickle bed reactor are discussed.
1998, Vol. 15 
