催化裂化催化剂粉体连续混合实验研究  

EXPERIMENT RESEARCH ON CONTINUOUS MIXING OF FCC CATALYST PARTICLES

作　　者：贺旺军[1] 田志鸿[1] 周健[1] 

机构地区：[1]中国石油化工股份有限公司石油化工科学研究院,北京市100083

出　　处：《炼油技术与工程》2007年第11期5-8,共4页Petroleum Refinery Engineering

摘　　要：比较了粉体混合均匀度的常用评价方法,认为离差系数法最适合应用于催化裂化催化剂粉体的混兑,用电导率法测定混合粉体中某一组分的含量是一种简单、高效、低成本的有效方法。用自制的连续混合器测定了催化裂化催化剂粉体连续混合的混合度随混合器操作参数的变化情况。实验结果表明:连续混合器在混兑催化裂化催化剂方面表现出了优良的混合性能,混合的均匀度很高,在一定条件下可达98%;在一定的混合原料和混合比例下,混合度随混合器搅拌速度的提高而上升,随投料速度的增大而下降。在混合器的最大投料速度下,只要搅拌速度大于900r/min,混合度都不低于95%,能满足实际需要。The evaluation methods of uniformity of particle mixing is compared. It is concluded that the deviation coefficient method is an appropriate method for catalyst particles mixing. The conductivity method is an effective simple low-cost technique for measuring the content of a component in the catalyst. The variation of mixing degree of FCC catalyst particles with operating parameters is measured using continuous mixer. The experiment results show that the continuous mixer performs well in mixing FCC catalysts and the mixing uni- formity is high, i.e. 98% at certain conditions. At a certain mixing ratio and feedstock, the mixing degree ri- ses with increasing rotation speed of the mixer and decreases with increasing inlet feed rate. At the maximum feed rate, the mixing degree is no lower than 95% if mixer is running at a speed of over 9 000 r/min. It can meet the requirement of unit operation.

关 键 词：催化剂 粉体 混合 离差系数法 

分 类 号：TE624.9[石油与天然气工程—油气加工工程]