Numerical Simulation And Analysis Of The Catalyst Particles Impacting Onto Surface Of Component

The catalyst particles impacting onto many Components of the catalytic cracking unit,on the one hand it will cause accident and failure that in long-term continuous impact for the catalyst particles,on the other hand it will cause run loss of catalyst particles, All these will bring enormous loss to the petroleum industry. So it is necessary for researching the process that catalyst particles impacting onto surface of component. In orde to reduce catalyst particles damage and erosive of the surface of component, the technical measures were proposed. It Improved to impact resistance for catalyst and surface of component,the catalytic cmekinguit can work on long-term safetly and stability.This paper aimed at component in the catalytic cracking unit that very easily impacted for catalyst particles and A there-dimensional dynamic finite element analysis of catalyst particles impacting onto surface of component, Based on the accuracy of the calculation model the best catalyst particles and component mesh density were determined for a comparison of the various grid program. According to the material properties of catalyst particles and the surface of component.Selective the destructive wear model and aiming at the problems of complexity and many parameters and using parameter analysis method.It was analyzed that the effect of catalyst particles impact size、 velocity、 angle、 material and so on of the catalyst particles for the case of catalyst particles impact and the effect of the component. Taking the material destruction of the model to calculate the erosion rate after impacting and building the relationship between catalyst particles and component of damage with the above parameters.The results show that regular pattern of catalyst particles and surface of component for impacting velocity、 size、 angle、 material、 number of the particle and separation distance between the impcting points.It is conducive to grasp that regular pattern of catalyst particles and surface of component of destructive wear, it has a certain reference value for the component of the catalyst particles impact capability assessment.