歧化及烷基转移催化剂的运行及工业再生

介绍中海石油炼化有限责任公司惠州炼油分公司芳烃联合装置歧化及烷基转移单元高空速、低氢烃比条件下催化剂的运行及工业再生情况。采用C10+芳烃含量较高的原料，在较高空速、低氢烃比的条件下运行近2年，歧化催化剂积焦量达到39%以上，使催化剂活性下降。通过氢气汽提、低氧主烧焦和高氧清焦方法对催化剂进行再生，清除了约35.80 t焦炭，再生后催化剂反应性能良好，表明催化剂具有良好的再生性能。

INDUSTRY OPERATION AND REGENERATION OF TRANSALKYLATION AND DISPROPORTIONATION CATALYST

The operation of transalkylation and disproportionation catalyst under high space velocity and low hydrogen to hydrocarbon (H2/HC) ratio at the aromatics complex unit of CNOOC Huizhou Refinery was introduced, as well as the regeneration of this catalyst. Processing feedstock with relative high C10+ aromatics content and after running about 2 years under high space velocity and low H2/HC ratio conditions, the coke deposited on the catalyst was as high as over 39%, thus the activity of the catalyst dropped significantly. The deactivated catalyst was stripped by hydrogen, and then followed by burning coke under low oxygen atmosphere and removing coke under high oxygen atmosphere, about 35.80 t of coke was eliminated. The catalytic performance of the regenerated catalyst was good, which indicated that said catalyst possessed good regeneration property.