操作条件对下行床油剂混合区液固接触的影响Influence of Operating Conditions on Liquid-Solid Contact in the Feed Stock Zone of a Downer
张琪皓,许积年,魏飞,单平甲,金涌
摘要(Abstract):
利用由催化剂染色法和模式识别法结合微观成像系统组成的定量测量系统分别考察了下行风、剂油比和气液比等操作条件对油剂接触效果的影响程度。其中剂油比对油剂接触效果的影响最大;下行风的增加会造成油剂接触效果变差;随着剂油比的增加着色率和深度染色率均下降并存在一个明显的拐弯点(当剂油比等于25时),油剂接触效率随着剂油比的增大呈上升趋势。气液比对油剂接触的影响较复杂,受剂油比的影响较大,着色率和深度染色率在不同剂油比下的变化趋势不同。因此在下行风较低、采用符合反应要求的剂油比和与此剂油比相匹配的最优的气液比时能达到较为理想的油剂接触效果。
关键词(KeyWords): 液固接触;下行床油剂混合区;剂油比;下行风;气液比
基金项目(Foundation):
作者(Author): 张琪皓,许积年,魏飞,单平甲,金涌
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