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为了提高流化床催化裂化装置的加工能力和轻油收率,外甩油浆是改善催化裂化操作的有效手段。目前油浆主要用作燃料油的调合油,这种利用油浆的方式效益低,而且油浆中含有少量固体颗粒,易造成炉嘴结焦。从实际应用的角度出发,介绍了我国催化裂化油浆的组成特点及自然沉降法、过滤分离法、静电分离法、离心分离法、化学沉降助剂法等净化方法,阐述了我国催化裂化油浆的综合利用情况,并针对我国的实际情况提出了一些设想和建议。
In order to improve the fluidized bed catalytic cracking unit processing capacity and light oil yield, thrown slurry is an effective means to improve the catalytic cracking operation. At present, the slurry is mainly used as a blending oil of fuel oil, which has the advantages of low efficiency in using the slurry and a small amount of solid particles in the slurry, which can easily cause the burner to coking. From the point of view of practical application, this paper introduced the compositional characteristics of FCC slurry and the purification methods of natural sedimentation, filtration separation, electrostatic separation, centrifugal separation and chemical precipitation additives, Comprehensive utilization of the situation, and for the actual situation in our country put forward some ideas and suggestions.