Method of producing process gases containing hydrogen and carbon monoxide from ash oil

#This invention relates in general to a method of producing gases containing hydrogen and carbon monoxide and in particular to a new and useful process for producing gases containing hydrogen and carbon monoxide from ash oil.

#Such ash oils or residual oils rich in ash are obtained in crude oil refining processes. In the coal liquefaction also, an oily suspension of ash containing residual coal is obtained as residue. Both these residual oils are considered as ash oil for purposes of the present invention.

#The method of producing process gases containing hydrogen and carbon monoxide from ash oils is similar to the coal gasification method. In the last named method, gas heat in excess is transferred for a large part to indirectly water-cooled, radiated heat absorbing surfaces of a radiant boiler. Ash particles are collected in the water and drained, while the pre-cooled process gas, still carrying ash particles and non-converted carbon, is further cooled, in a convective waste-heat boiler and with steam generation, to 250.degree. to 300.degree. C. and then purified in a scrubber and again cooled.

#In the Drawing:

#The only FIGURE of the drawing is a schematic representation of the process of producing containing hydrogen and carbon monoxide from ash oil in ash oil in accordance with the invention.

#Referring to the drawings in particular, the invention embodied therein comprises a process for producing process gases containing hydrogen and carbon monoxide from ash ore and which comprises directing oil rich and ash and oxygen rich gases into a burner and firing it downwardly into a pressure reactor so as to gasify the oil under pressure and under presence of steam into gases which are partly burned and a remainder of gases, separating the remainder of gases from the unburnt carbon and ash and quenching them to convert them into steam by directing them into contact with a wash water which entrains fine particles of carbon, using the remaining heat content of the quench gases in another process, directing the wash water into a decanter-thickener to separate the wash water and entrained particles into clear water, carbon containing water, and ashmud, and using the carbon containing water to produce steam for controlling the conversion of ash oil.

#The method of producing process gases containing hydrogen and carbon monoxide from ash oil includes directing oxygen that is pure oxygen (99.5%) through a line 1 and a preheater 2 to burner 3 of a gasification reactor 4.

#The ash oil is fed through a line 20 and a preheater 21 into burner 3 of reactor 4. The products of gasification flow through an outlet 5 into a quenching zone 6 wherefrom the gas is directed through a line 7 to a direct gas cooler 8, while in the lower part of the quenching zone 6, the ash in the form of larger clinker particles is removed from the process through a line 10, a slag lock 11, and a line 12.