GB340811A - An improved process for obtaining valuable distillates by the destructive hydrogenation of carbonaceous materials - Google Patents

Abstract

In the destructive hydrogenation of fluent carbonaceous materials such as petroleum, tars, and suspensions of coal in oil, a portion of the reaction mixture is withdrawn from the reaction vessel and the pressure on this portion is reduced so that a substantial part of the hydrocarbon liquid is distilled. Oil or the like, heated in a pipe still 1, passes to a reaction drum 3, from which a part of the oil is continuously re-cycled by a pump 6 back to the pipe still. Hydrogen is pumped by a compresser 8 into the still through valve 11, and into the reaction drum through valve 12. Vapours pass from the drum to a heat-exchanger 15 and condenser 16; hydrogen purified, if necessary, from hydrogen sulphide and gaseous hydrocarbons, is returned by a pump 18 to the pipe 10. A part <PICT:0340811/III/1> of the reaction mass is withdrawn by a pipe 19 through a pressure reduction valve 20 to a vaporizing chamber 21. Solid residues are discharged through a double bell closure 23<1>, and vapours are passed through a condenser 25 to a gas separator 26. Inert gas may be introduced through a valve 21a. Fresh oil is introduced into the system by pumps 31, 33 through the preheater 15 and the pipe 34. Carbonaceous solids may be added from a pulverizer 32, and oil from the separator 26 may be re-cycled through a pump 29.