The model was then applied to an industrial isomerization unit for on-line estimation of the para-xylene (PX) concentration.
然后将软测量模型应用于工业异构化装置，在线估计对二甲苯（PX）的含量。
For isomerization of o-xylene the improvement in para-selectivity has not been observed, because the reaction is not mainly controlled by the diffusion of the reaction products.
但对邻二甲苯异构化反应，由于反应不是单纯由反应产物扩散控制，它们的对位选择性并无明显改善。
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