模糊聚类分析在确定原油加工方案中的应用

为了保证连续生产，不同原油常采用相同的加工方案和操作参数，干扰了装置的平稳生产，严重影响了企业的安全生产和经济效益．由于化学组成和物理性质相近的原油，在加工方案和加工过程中所遇到的问题也极为相似．所以本文运用模糊聚类分析，以相似度为唯一标准，将反映待加工原油性质的密度、粘度、酸值、凝点、残炭、硫含量等六项指标与已加工过原油的性质指标进行归类处理，按不同截值进行分类，参照同一类别的原油加工方案和操作参数来确定待加工原油的加工方案和操作参数．结果表明，当截值λ＝０．９５时，待加工原油与米纳斯原油仍具有较高的相似度，与传统的原油评价结论一致，此方法克服了原油评价滞后于加工生产的现象，具有较高的时效性和现实意义，对炼厂优化和平稳生产具有指导作用．

Application of Fuzzy Cluster Analysis in Determining the Plan of Processing Crude Oil

By applying the method of fuzzy cluster analysis and taking similarity as the only standard,the paper processed the data which reflect the permeability,viscosity,acidity,freezing point,carbon residue and sulfur content of crude oil to be refined together with the property parameters of crude oil which was already refined. The crude oil was classified according to different section value.The processing plan and operating parameters of crude oil to be processed were decided by refering to the processing plan of the crude oil belonging to the same kind.The results indicate that when the section is equal to 0.95,the crude oil to be refined has a good similarity with MINAS oil.The method has overcome the phenomenon of evaluation being later than processing and the evaluation conforms with the conventional one. It is of high time effectiveness and realistic significance.