一种新型气固分离装置结构的优化研究  

Structural Optimization of a Novel Gas-Solid Separator

作　　者：刘显成[1] 卢春喜[1] 严超宇[1] 时铭显[1] 

机构地区：[1]中国石油大学(北京)重质油国家重点实验室,北京102249

出　　处：《化学反应工程与工艺》2006年第2期120-124,共5页Chemical Reaction Engineering and Technology

摘　　要：在已有实验的基础上,结合大型冷模实验、流场实验和计算流体力学(CFD)模拟的结果,以压降和分离效率为综合评价指标,对后置烧焦管出口的气固分离器中心排气管位置(偏心)和中心排气管开缝形式进行了考察。结果表明,保持其它尺寸与基准型分离器一致而中心排气管改为切向开缝形式的分离器,既能保持分离效率不低于基准型分离器,又能降低压降,在实验条件下压降不超过1 900 Pa,分离效率大于98%A new fluid catalytic cracking （FCC） regeneration technology combining post coke-burning riser and conventional turbulent bed regenerator had been developed. One of the key components in this technology was gas-solid separator located at outlet of riser regenerator. The gas solid separator named as the basic type separator was tested in a large scale cold model experimental setup with FCC particles, and test results showed that its separation efficiency was 96.6%-99.76% , but pressure drop was up to 3 237 Pa under the experimental conditions. To decrease its pressure drop, separator structure, including the position of center pipe （eccentric to the inlet side） and the tangential slot type, was optimized according to experimental results and the simulation of gas flow field by using computational fluid dynamic （CFD） software with k -ε turbulent model. Experimental results show that tangential separator could keep separation efficiency more than 98% in large scale cold test setup with FCC particles and pressure drop less than 1 900 Pa under the experimental conditions.

关 键 词：气同分离器 分离效率 压降 催化裂化 再生 

分 类 号：TQ028.2[化学工程]