Patent ID: 9388096
Filing Date: 2016-07-12
CPC Classification: C07C,C10G

Claim Text:
1. A producing method of monocyclic aromatic hydrocarbons in which reaction products including monocyclic aromatic hydrocarbons are produced by bringing an oil feedstock and an aromatic production catalyst into contact with each other, the oil feedstock having a 10 volume % distillation temperature of more than or equal to 140° C. and a 90 volume % distillation temperature of less than or equal to 380° C., the method comprising the steps of: introducing the oil feedstock into a fluidized-bed reaction apparatus housing the aromatic production catalyst; bringing the oil feedstock and the aromatic production catalyst into contact with each other in the fluidized-bed reaction apparatus; introducing steam into the fluidized-bed reaction apparatus based on an introducing amount of the oil feedstock per hour; when the introducing amount of the oil feedstock per hour decreases more than a predetermined introducing amount, adjusting the introducing amount of the steam per hour based on the difference amount of the introducing amount of the oil feedstock per hour; and producing the monocyclic aromatic hydrocarbons,