Influence of the Spigot Diameter of a Hydrocyclone on Its Separation Performance
1. China University of Petroleum, Beijing 102249, China; 2. Beijing Yanshan Company, SINOPEC, Beijing 102500, China; 3. China Huanqiu Contracting and Engineering Corporation, CNPC, Beijing 100029, China; 4. Crude Oil Transportation and Sales Company of Dagang Oilfield, CNPC, Tianjin 300280, China
Abstract：The spigot diameter has a significant influence on performance of a hydrocyclone. In a cold model hydrocyclone dealing with fluid catalytic cracking (FCC) catalyst and water, the separation performance was investigated by measuring volume fraction of the particle in fluid and calculating the particle concentration and separation efficiency. It was found that the influence of the spigot diameter on the separation performance of hydrocyclone considerably varied with solid loading of the system. For the system of low solid concentration (Cinlet≤10%), with increasing the spigot diameter, solid concentration of flow out of the spigot significantly decreased, while that of flow out of the vortex finder barely changed. For the high solid loading system (Cinlet≥15%), when the spigot diameter increased solid concentration of flow out of the spigot approximately kept constant, but that of flow out of the vortex finder considerably decreased. For all solid loading employed in this work, the split ratio and separation efficiency increased, but the pressure drop of the hydrocyclone slightly decreased with the increase of spigot diameter.
Gong Zhenyu 1,2,Zhang Yanjun 1 et al. Influence of the Spigot Diameter of a Hydrocyclone on Its Separation Performance[J]. 化学反应工程与工艺, 2014, 30(5): 463-470.
