Hydrocarbon synthesis reaction apparatus

Abstract

A hydrocarbon synthesis reaction apparatus includes a reactor bringing synthesis gas into contact with a slurry having a solid catalyst suspended in liquid hydrocarbons to synthesize hydrocarbons by the Fischer-Tropsch synthesis reaction; a cylindrical inner tube having a lower end arranged within the reactor at a predetermined distance from the bottom thereof; and a sparger arranged on an inner lower side of the inner tube, which blows the synthesis gas toward the inside of the inner tube. A Fischer-Tropsch synthesis reaction region, where the slurry including bubbles flows out from inside the inner tube through an upper end thereof, is formed in a space between a virtual extension portion of the upper end of the inner tube and an inner surface of the reactor, wherein the slurry is held within the reactor until the upper end of the inner tube is lower than the liquid level of the slurry.

1 . A hydrocarbon synthesis reaction apparatus comprising:
 a reactor that brings a synthesis gas including carbon monoxide gas and hydrogen gas as main components into contact with a slurry having a solid catalyst suspended in liquid hydrocarbons to synthesize hydrocarbons by the Fischer-Tropsch synthesis reaction;   a cylindrical inner lube having a lower end arranged within the reactor at a predetermined distance from the bottom of the reactor; and   a sparger that is arranged on an inner lower side of the inner tube and blows the synthesis gas toward the inside of the inner tube,   wherein a Fischer-Tropsch synthesis reaction region, to which the slurry including bubbles flows out from the inside of the inner tube through an upper end of the inner tube, is formed in a space between a virtual extension portion of the upper end of the inner tube and an inner surface of the reactor, in a state where the slurry is held within the reactor until the upper end of the inner tube is lower than the liquid level of the slurry.   
     
     
         2 . The hydrocarbon synthesis reaction apparatus according to  claim 1 ,
 wherein the ratio of the diameter of the inner tube to the diameter of the reactor is 0.6 or more and 0.8 or less.   
     
     
         3 . The hydrocarbon synthesis reaction apparatus according to  claim 1 ,
 wherein when the slurry including bubbles is diffused while spreading radially outward of the reactor from the upper end of the inner lube, the height of the upper end of the inner tube is set so that an intersecting portion between a virtual extension line defining the diffusion angle of the slurry with respect to a horizontal surface including an upper end surface of the inner tube and the inner surface of the reactor is lower than the liquid level of the slurry.   
     
     
         4 . The hydrocarbon synthesis reaction apparatus according to  claim 2 ,
 wherein when the slurry including bubbles is diffused while spreading radially outward of the reactor from the upper end of the inner tube, the height of the upper end of the inner tube is set so that an intersecting portion between a virtual extension line defining the diffusion angle of the slurry with respect to a horizontal surface including an upper end surface of the inner tube and the inner surface of the reactor is lower than the liquid level of the slurry.