原料中硫含量对PS-Ⅵ连续重整催化剂性能的影响

EFFECT OF SULFUR CONTENT IN FEEDSTOCK ON THE PERFORMANCE OF PS-Ⅵ CCR CATALYST

对比了PS-Ⅵ连续重整催化剂在经历高硫环境运行前后的性能。结果表明,在高硫环境下,PS-Ⅵ催化剂的C5+产物辛烷值、C5+液体收率等仅略有下降,表明PS-Ⅵ重整催化剂具有优良的抗硫能力;在重整进料油硫含量降低后,催化剂上的硫含量可以缓慢恢复到正常水平,而催化剂的活性基本不变,对催化剂的使用寿命没有明显的影响。

The performance of PS-VI CCR catalyst prior and post to processing high sulfur feeds was compared. It can be seen that running under high sulfur environment, the yield and RON of C5^＋ liquid product are only slightly lower, which means that PS-Ⅵ catalyst possesses good resistance to sulfur poi-soning. When stop using high sulfur feed, the sulfur content of feed decreased, and gradually the sulfur content of catalyst could be returned to normal level. Moreover, the effect of temporarily sulfur poison-ing on catalyst activity and service life is non-significant.