基于变径流化床的高效灵活的催化裂化技术开发

In order to meet the challenges of market demand and its changes in fluid catalytic cracking (FCC) technology, based on the understanding of the key steps of complex catalytic reaction and its regulation theory, a FCC process with directional regulation of bimolecular reaction depth and type and monomolecular reaction depth was developed by means of diameter-transformed fluidized bed catalytic reaction engineering, and the flexible switching between monomolecular and bimolecular reactions was realized, so that FCC technology had sufficient flexibility in production schemes. This paper introduces the key steps and regulation theory of complex catalytic reaction of petroleum hydrocarbons on catalysts. Based on the change of market demand for products, the reaction depth and direction of intermediate transition state are flexibly regulated, and efficient and flexible FCC technology is developed, and the connotation of catalytic reaction engineering technology of diameter-transformed fluidized bed is continuously enriched. Efficient and flexible FCC technology can switch gasoline production scheme to light olefins production scheme in a short time, and vice versa, providing technical support and coping strategies for the transformation and development of low-cost progressive refining.