化工学报Issue(1)：79-85,7.DOI:10.11949/j.issn.0438-1157.20140994
催化裂化装置烟气轮机积垢及其增厚机理
Analysis of mechanism of fouling increase on blades of FCCU power recovery expander
摘要
Abstract
Addressing the problem of serious fouling on the blades of FCCU (fluid catalytic cracking unit) power recovery expanders in refinery, micro-morphologies of fouling and catalyst particle at inlet of power recovery expander were analyzed with scanning electron microscopy (SEM). The fouling on the blades consisted of catalyst particle with diameter mainly between 1μm and 2μm. Then the adhesion mechanism of the catalyst particle and the effect of various adhesive forces on the adhesion phenomenon were studied. The smaller the diameter of the particle, the easier the particle was adhered, which agreed with the result of SEM. The inner distribution of the velocity field simulated by CFD demonstrated the effect of adhesive force on the fouling.关键词
催化裂化/烟气轮机/黏附/结垢/CFDKey words
FCCU/power recovery expander/adhesion/fouling/CFD分类
能源科技引用本文复制引用
费达,侯峰,陈辉,吴晓磊..催化裂化装置烟气轮机积垢及其增厚机理[J].化工学报,2015,(1):79-85,7.基金项目
中国石油化工股份有限公司科技开发项目（312016）。 （）
