NOVELTY - A liquid hydrocarbon containing toxic material is mixed with steam and oxygen-containing gas, at preset flow rate. Mixture is introduced to reaction vessel, and high temperature gas containing hydrogen is produced. Gaseous products are cooled and washed with water, and a reducing gas containing hydrogen and carbon monoxide is produced. Thus, destruction of toxic material in liquid hydrocarbon is enabled.    USE - For destruction of toxic materials, such as polychlorinated biphenyl, pesticide, chlorofluoro carbon, halogenated benzene, halogenated phenol, halogenated alkane, halogenated cycloalkane, halogenated dioxin and halogenated dibenzofuran (all claimed), and for producing reduced gas used as synthesis gas, fuel and chemical reducing agent used for reducing iron oxide.    ADVANTAGE - The toxic materials contained in liquid hydrocarbon are efficiently destroyed, without generating harmful intermediate, such as dioxin.    DETAILED DESCRIPTION - A liquid hydrocarbon (16) containing toxic material is mixed with steam (20) and molecular oxygen-containing gas (18), in a flow channel. The flow rates of liquid hydrocarbon and steam and oxygen gases are regulated, such that the velocity of mixture of liquid and gas at the outside of flow channel is more than 40 m/second. The mixture of liquid and gas is introduced to a reaction vessel having a refractory lining (14), at temperature of more than 650 degrees C. A high temperature gas containing molecular hydrogen is produced, and maintained for at least 2 seconds. The outlet of reaction vessel is maintained above 1000 degrees C, and gaseous products are cooled and washed with water. A reducing gas (46) containing hydrogen and carbon monoxide is produced, and is free from toxic material due to partial combustion of liquid hydrocarbon. Thus, destruction of toxic material in liquid hydrocarbon is enabled.    An INDEPENDENT CLAIM is included for a system for destruction of liquid containing toxic material. The system has a partial combustion chamber (10) having an inlet and an outlet, a flow channel having length to diameter ratio of at least 4, and a gas-cooling unit. The combustion chamber has a refractory lining maintained at high temperature used for producing flame gases. The flow channel enables intimate mixing of stream of oxygen, stream of steam and stream of liquid containing toxic materials, and is connected with inlet of combustion chamber. The gas-cooling unit is connected with outlet of combustion chamber, and carries out quenching of flame gases.    DESCRIPTION OF DRAWING(S) - The figure details the above method of processing toxic waste hydrocarbon.    Partial combustion reactor (10)    Burner (12)    Refractory lined wall (14)    Hydrocarbon (16)    Oxygen-containing gas (18)    Steam (20)    Cooling water (28)    Reducing gas (46)