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总结讨论了锦州石化公司 80 0kt/a柴油中压加氢改质 (MHUG)装置对催化剂进行的两次器内再生 ,通过两次再生经验表明 ,再生空气与氮气混合后的氧含量不仅是控制催化剂烧焦时床层最高温升的关键参数 ,而且是控制催化剂烧焦速度的重要参数 ;烧焦过程中反应器入口温度不宜提得过高 ,以免限制再生空气与氮气混合后的氧含量的提高 ,延长烧焦时间。根据工业装置中反应器设计的具体情况 ,提出了两段或多段烧焦工艺的设想
In this paper, the internal regeneration of the catalyst in a 80kt / a Diesel Medium Pressure Hydrogenation Modification (MHUG) unit of Jinzhou Petrochemical Company was summarized. The results of two regeneration experiments show that the oxygen content of the mixed regeneration air and nitrogen is not only the control The key parameters of the maximum temperature rise of the bed when the catalyst burns, and is an important parameter for controlling the catalyst burning rate; the inlet temperature of the reactor during the scorching process should not be raised too high, so as to avoid limiting the oxygen content after the mixed air and nitrogen are mixed Improve, extend the burning time. According to the specific situation of the reactor design in the industrial plant, two-stage or multi-stage scorching process is proposed