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研究了焦化蜡油中碱性氮化物质量分数w(Nb)的变化对裂化产品的分布及原料转化率的影响规律 .在同轴式小型流化催化裂化试验装置上 ,考察了 50 0℃和 52 0℃两个温度下 ,碱性氮化物对焦化蜡油裂化性能的影响 .结果表明 ,当原料中w(Nb)每增加 0 .1%时 ,汽油收率下降 3.1%～ 5.5% ,转化率平均下降 2 %～ 4 % ,焦炭收率增加 1%～ 3% ,柴油收率随w(Nb)增加有一极值 ,极值位置随温度升高而提前出现 ,因此 ,提高反应温度有利于增加催化剂活性
The influence of basic nitrogen content (w) in coking wax oil on the distribution of cracking products and the conversion of raw materials was studied.In a small coaxial fluidized catalytic cracking test unit, The effect of basic nitrides on the cracking performance of coker gas oil was investigated at 52 0 ℃. The results showed that when the content of w (Nb) in raw materials increased by 0.1%, the gasoline yield decreased by 3.1% -5.5% The rate of coke is increased by 1% ~ 3%, the yield of diesel oil has an extreme value as w (Nb) increases, and the location of extreme value appears earlier with increasing temperature. Therefore, increasing the reaction temperature is favorable Increase catalyst activity