grain mass/grain是什么(催化剂)? This solid, thus must have a large pore volume and a pore distribution specially designed with macropores, so that resins and asphaltenes can move quickly through the grain mass and mesopores, so that these large molecules can still benefit of a large active surface area. This type of catalyst, making possible a uniform deposit of metals through the matrix all the way to the nucleus of the grain has a high retention power of more than 100 wt%, as compared to the weight of fresh catalyst. This high amount allows minimum catalyst consumption in the downstream RFCC unit and maximization of cycle length via an efficient of the refining catalyst. 关于脱金属 催化剂 。求标红处的理解或中文翻译。grain mass 是载体吗? 查看更多12个回答 . 2人已关注