王斯民,宋晨,王家瑞,孙利娟,张早校,文键

• 1:西安交通大学化学工程与技术学院
• 2:西安交通大学能源与动力工程学院

摘要(Abstract)：

为进一步提高FCC三旋细颗粒脱除效率,基于蒸汽相变原理,在低过饱和度下进行了FCC三旋细颗粒相变长大特性的实验,并采用静电低压冲击器(EIPI+)测量相变长大前后颗粒粒径分布,研究了热水温度、颗粒初始浓度及烟气流量对颗粒相变长大的影响。结果表明:提高热水温度可显著促进颗粒长大;颗粒的初始浓度对其长大效果的影响因热水温度而异,具有一定不确定性;烟气流量增大会抑制颗粒长大。在最优的实验条件下,细颗粒的算术平均粒径由初始的1.35增大到6.76μm,已达FCC大三旋装置除尘的临界粒径,可进行工业分离。

关键词(KeyWords)： 蒸汽相变;细颗粒;长大特性;除尘效率

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51676146)

作者(Author): 王斯民,宋晨,王家瑞,孙利娟,张早校,文键

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