Abstract: The second RFCC of Yanshan refinery is the only one FCC in which oxygen enrichment regeneration technology have been used at present in China. This article gives some analysis between conventional regeneration and oxygen enrichment regeneration. After adopting the oxygen enrichment regeneration technology, coke-burning was improved efficiently, and the equilibrium catalyst activity was enhanced. When the spent catalyst mix ratio was 75%, the regeneration carbon would decrease from 0.12% to 0.03%, equilibrium catalyst activity was 0.5 unit higher than conventional regeneration. The product distribution was optimized and the economic benefit of the FCC unit was increased. By using the technology, the cock-burning load and processing capability of the FCC unit could be greatly increased without changing the main blower and the regenerator structure. When the spent catalyst mix ratio was 75% , the coke burning intensity was 130.06 kg/(t·h)，7.73 kg/(t·h) higher than conventional regeneration .

摘要： 对常规再生与富氧再生两种不同再生方式在催化裂化装置上的应用进行了分析：与常规再生相比，采用富氧再生技术可有效改善烧焦效果，在掺渣比75%条件下，定炭值由0.12%下降至0.03%，平衡剂的活性提高0.5个单位；优化了产品分布，可提高装置的整体效益；并且该技术的使用可在主风机及再生器主体结构不作改动的前提下大幅度提高装置的烧焦负荷和加工能力，当掺渣比为75%时，烧焦强度为130.06 kg/(t·h)，比常规再生高7.73 kg/(t·h)。