On the contrary, beds of large uniformly sized solids often fluidize poorly with bumping, spouting and slugging . 相反，均匀大颗粒床层常常由于碰撞、喷射和腾涌而流化不好。
Fluidized bed processing was first used commercially in fluid catalytic cracking of crude oil in 1941 . 早在1941年，流化床工艺过程就第一次以工业规模用于原油的流化催化裂化。
These findings show that flow in fluidized beds lies squarely between the extremes of plug and backmix flow . 这些结果说明了流化床内流动恰好位于活塞流与返混流两个极端之间。
As opposed to gas-liquid systems, there is an interchange of gas between bubble and continuous phase in fluidized beds . 与气-液系统不同的是，在流化床中气泡和连续相之间有气体交换。
The stimulus response technique has been extensively used to explore the flow characteristics of both gas and liquid fluidized beds . 激发-响应技术曾被广泛地应用于探索气体和液体流化床的流动特性。
For gas fluidized systems, numerous correlations based on experiments in laboratory-sized equipment have been proposed . 对气体流化系统，已提出为数众多的根据实验室规模设备上的实验所综合出来的关联式。
Because of the extreme shallowness of the beds used these results need not relate to the behavior of normal fluidized beds of fine particles . 由于所用的床层极浅，其结果不应与细颗粒的正常流化床性状相联系。
It is doubtful that the diffusion or ideal mixing stage models can satisfactorily represent the behavior of gas in fluidized beds . 扩散模型或者理想混合级模型能否满意地表示气体在流化床中的性状是可以怀疑的。
This is unfortunate since it would be helpful to have reliable data for the fine particle systems commonly used in fluidized beds . 这是很遗憾的，因为如能取得流化床常用的微细颗粒系统的可靠数据，则将大有帮助。
One particular feature of the fluidized bed, its remarkable temperature uniformity, has recommended it as a vehicle for effecting catalytic reactions . 流化床的一个特殊的性能，即其温度非常均一，使它成为进行催化反应的一个工具。
