Abstract:
PURPOSE: A multicomponent bismuth-molybdate catalyst, a method of producing thereof, and a method of producing 1,3-butadiene using thereof are provided to obtain the 1,3-butadiene with high yield using a C4 distillate with a lot of impurities as a reactant directly. CONSTITUTION: A multicomponent bismuth-molybdate catalyst is used to produce 1,3-butadiene from a C4 distillate including normal-butane and normal-butene by an oxidative dehydration, which essentially contains bismuth and molybdenum component and a metallic component with divalent or trivalent cation. The metallic component with divalent or trivalent cation is selected from the group consisting of cobalt, nickel, zinc, magnesium, manganese, copper, iron, potassium, sodium, aluminum, vanadium, zirconium, tungsten and silicon.
Abstract:
PURPOSE: A method for producing 1,3-butadiene from n-butene using continuous-flow dual-bed reactor with excellent catalyst reproducibility is provided to obtain 1,3-butadiene at high yield by maximizing activity of oxidation-dehydrogenation of n-butene. CONSTITUTION: A method for producing 1,3-butadiene from n-butene using continuous-flow dual-bed reactor comprises the steps of: laminating and filling a bismuth molybdate-based first catalyst and a ferrite-based second catalyst, which are a catalyst-fixed layer on a reactor by a quartz layer so that a separated laminated layer is formed; performing oxidation-dehydrogenation while consecutively passing a C4 mixture including normal butane and a reactant containing air and steam through a catalyst layer of the reactor; and obtaining 1,3-butadiene.