催化裂化油浆柔性脱固技术(RSFF)研究

RESEARCH AND DEVELOPMENT OF FLEXIBLE FILTER TECHNOLOGY FOR FCC SLURRY

以催化裂化油浆为原料,用自主开发的不同技术代别的柔性滤材对油浆进行脱除固体颗粒物处理(简称脱固),考察了过滤温度、进料速率对油浆脱固效果的影响,进一步考察了柔性滤材的性能稳定性及其对不同原料的适应性。结果表明:第三代滤材对油浆的脱固率最高,第二代滤材对油浆的脱固率较第一代滤材略高;过滤温度越高、进料速率越低,脱固周期越长;第三代柔性滤材可以适应黏度高、固体颗粒含量较高的油浆,而且性能稳定、再生性能好。使用第三代柔性滤材,经过多次再生后,脱固油浆的Al和Si的质量分数均小于10μg/g,过滤器初始压降基本相同。

The fluid catalytic cracking(FCC)slurry was treated with different kinds of flexible filter materials developed independently to remove solid particles.The effects of filter temperature and feed rate on the removal of solid particles in FCC slurry,and the performance,stability and adaptability of the flexible filter material to different FCC slurries were investigated.The results show that the third-generation filter has the highest solid removal rate,the second-generation filter has slightly higher solid removal rate than the first-generation filter,and the increasing filter temperature,the decreasing feed rate,the desolidation period increases.The third generation of flexible filter material can adapt to high viscosity and high solid particle content of the FCC slurry,and has stable performance and good regeneration performance.With the third generation of flexible filter after multiple regeneration,the mass fraction of Al and Si in the desolidated slurry is less than 10μg/g,and the initial pressure drop of the filter is basically the same.