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改变反应条件对馏分及尾油中碱氮、总氮含量影响不大;同一反应条件下,碱性氮和总氮含量都随馏分变重而增加,总氮含量的增加明显高于碱性氮;产物中的碱性氮和总氮主要集中在蜡油和尾油中;热转化汽油和柴油中的碱性氮占馏分氮的质量分数较大,尾油中约为1/3。碱性氮和氮在热转化过程中向产物的转移无明显的选择性;含氮化合物比烃类难以裂化。
Under the same reaction conditions, the content of basic nitrogen and total nitrogen increased with the weight gain of the fraction, and the increase of total nitrogen content was obviously higher than that of basic nitrogen ; The basic nitrogen and total nitrogen in the product are mainly concentrated in the wax oil and the tail oil; the basic nitrogen in the heat-converted gasoline and diesel oil accounts for a large fraction of the fraction nitrogen, and the tail oil is about 1/3. Basic nitrogen and nitrogen in the thermal conversion process to the product of the transfer of no obvious selectivity; nitrogen compounds than hydrocarbons difficult to crack.