【摘要】 在不同的导流筒直径、喷嘴直径和喷嘴位置对液固环流反应器中固体流动行为进行考察。实验结果表明,导流筒直径增加时,固体流速减小。固体相含率先增加后减少,对固体相含率而言,当导流筒直径与反应器直径之比为0 5时,固体相含率最大;喷嘴直径增加时,固体流速和固体相含率都降低;随着喷嘴高度由低到高,固体流速增加,而固体相含率降低。更多还原

【Abstract】 The solid flow behavior in liquid-solid loop reactor was studied with draft tubes,and nozzles of different size and with different nozzle locati on. With increasing draft tube diameter,solid flow rates decreased,and solid loading first increased,and then decreased. When ratio of draft tube diameter to reactor diameter was 0.5,a maximum in solid loading appeared. With increasing nozzle size,solid flow rate and loading both decreased. When the nozzle location raised from a lower to a higher position,the solid flow rate increased,but solid loading decreased.更多还原