研究发现，焦化蜡油中主要的富氮组分是较小分子的戊烷不溶物，或者是更小分子、极性较强的己烷不溶物。
It is found that the major nitrogen sources in coker gas oils are associated with relatively small pentane insoluble species and an even smaller, highly polar, hexane insoluble species.
研究发现，焦化蜡油中主要的富氮组分是较小分子的戊烷不溶物，或者是更小分子、极性较强的己烷不溶物。
It is found that the major nitrogen sources in coker gas oils are associated with relatively small pentane insoluble species and an even smaller, highly polar, hexane insoluble species.
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