本文以二氧化硅为壳层材料，以纳米铁以及羰基铁粒子为核层材料，制备一种新型的吸收剂粒子。
This text attempts to regard silica as shell materials, regard nanometer iron and carbonyl iron particle as core materials to prepare a kind of new-type absorbent.
一定温度下的速率先增加后减少最后趋于平缓．这是由气相在吸收剂颗粒间的扩散和在产物层内的扩散引起的。
The gas diffusion through the inter-particle and the product layer was the mainly factor on the reaction rate.
应用推荐