Method for recycling flow contact cracking residue in fluid catalytic cracking process, method for controlling recycle amount of fluid catalytic cracking residual oil, and method for producing refined oil

摘要

Problem to be solved: to reduce the amount of recycling of the fluid catalytic cracking residue and to improve the efficiency of the fluid catalytic cracking process and to improve the efficiency of the fluid catalytic cracking process and to control the recycle amount of the fluid catalytic cracking residue And method for producing refined oil.Catalytic oil is brought into contact with the catalytic cracking cracking catalyst in the catalytic contact decomposition apparatus 1 to obtain the decomposition oil.Separation oil is separated by distillation towerIn a fluid catalytic cracking process to obtain refined oilA method of recycle a fluid catalytic cracking residue that supplies a fluid catalytic cracking residue containing a fluid catalytic cracking catalyst, which is a type of refined oil, to a fluid catalytic cracking apparatus again;The wear strength of the fluid catalytic cracking catalyst isMethod for recycling fluid catalytic cracking residual oil.Diagram