NOVELTY - The system comprises a first fluid bed reactor (1) for thermal cracking of the carbon based materials, a second vapor wash reactor (2), a third reactor (3), a fourth moving bed reactor, a fifth fluid bed reactor (5), a sixth reactor (6), and an oxygen membrane (10) between the third and sixth reactors. The first fluid bed reactor: comprises an intake that comprises an inlet for receiving the carbon based materials, an inlet for receiving processed solid materials and an inlet for receiving solids and oil, and a discharge end that comprises an outlet for carbon comprising solid material.    USE - The system is useful for the thermal conversion of carbon based materials into combustible oil and/or gas, where: the carbon based materials consist of biomass, wood, forestry waste products, organic waste, agricultural waste products, plastics, tires (claimed), tar sand, industrial waste, municipal waste, airport waste, entertainment industry waste, harbor waste, hospital waste or reject coal; and the combustible oil and/or gas is useful as a fuel source for engines, turbines, heating devices and steam devices, to power vehicles, to generate electricity in turbines or as base products for chemical synthesis.    ADVANTAGE - The flexible system assures economical and rapid thermal conversion of carbon based materials into high quality combustible oil and/or gas at high conversion rates without use of large scale equipment, and maintains the uniform temperature through the cracking reactor thus avoiding the appearance of hot spots in the reactor.    DETAILED DESCRIPTION - The system comprises a first fluid bed reactor (1) for thermal cracking of the carbon based materials, a second vapor wash reactor (2), a third reactor (3), a fourth moving bed reactor, a fifth fluid bed reactor (5), a sixth reactor (6), and an oxygen membrane (10) between the third and sixth reactors. The first fluid bed reactor: comprises an intake that comprises an inlet for receiving the carbon based materials, an inlet for receiving processed solid materials and an inlet for receiving solids and oil, and a discharge end that comprises an outlet for carbon comprising solid material, an outlet for metals and minerals and an outlet for effluent vapor and gas; is operated at a temperature of 350-450 degrees C, a hydrogen pressure of 200-300 mbar and an oxygen pressure of 10-5 to 10-9 mbar; and is connected through the inlet for receiving the carbon based materials with a dryer and a homogenizer. The second vapor wash reactor: is connected to the outlet for effluent vapor and gas for washing effluent vapor and gas from the first fluid bed reactor; comprises an intake that comprises an inlet for receiving the effluent vapor gas, and a discharge end that comprises an outlet for washed vapor and gas and an outlet for solids and oil connected to the inlet for solids and oil of the first fluid bed reactor for reintroducing the solids and oil into the first fluid bed reactor; and is operated at a temperature of 150-300 degrees C, a hydrogen pressure of 200-300 mbar and an oxygen pressure of 10-5 to 10-9 mbar. The third reactor: is connected to the outlet for washed vapor and gas for fractioning of the vapor and gas; comprises an intake that comprises an inlet for receiving the washed vapor and gas, and a discharge end that comprises an outlet for combustible oil and an outlet for non-condensed gas; and is operated at a temperature of 30-80 degrees C, a hydrogen pressure of 200-300 mbar and an oxygen pressure of 10-5 to 10-9 mbar. The carbon comprising solid material from the first fluid bed reactor is reintroduced into the first fluid bed. The fourth moving bed reactor: is connected to the outlet for carbon comprising solid material for stabilizing carbon in the solid material through conversion of gaseous materials; comprises an intake that comprises an inlet for receiving the carbon comprising solid material, and a discharge end that comprises an outlet for stabilized carbon comprising solid material; and is operated at a temperature of 550-650 degrees C, a hydrogen pressure of 200-300 mbar and an oxygen pressure of 10-5 to 10-9 mbar. The fifth fluid bed reactor: is connected to the outlet for stabilized carbon comprising solid material; comprises an intake that comprises an inlet for receiving the stabilized carbon comprising solid material and an inlet for receiving processed gas from a sixth reactor, and a discharge end that comprises an outlet connected with the inlet for receiving processed carbon comprising solid material for reintroducing processed solid materials into the first fluid bed reactor and an outlet for gas; is operated at a temperature of 700-850 degrees C, a hydrogen pressure of 200-300 mbar and an oxygen pressure of 10-5 to 10-9 mbar; and is connected through the outlet for gas with a gasfilter. The sixth reactor: is connected to an outlet for non-condensed gas for gasification of non-condensed gas from the third reactor; comprises an intake that comprises an inlet for receiving the non-condensed gas, and a discharge end that comprises an outlet for transporting processed gas to the inlet for receiving processed gas; and is operated at a temperature of 1100-1300 degrees C, a hydrogen pressure of 200-300 mbar and an oxygen pressure of 10-2 to 10-5 mbar. The dryer comprises an inlet for receiving solid carbon based materials, an outlet for transporting dried solid carbon based materials into the first fluid bed reactor, and an outlet for discharging non-carbon based material. The homogenizer comprises an inlet for receiving liquid carbon based materials, and an outlet for transporting homogenized liquid carbon based materials into the first fluid bed reactor. The gasfilter comprises an inlet for receiving gas and an outlet for discharging combustible gas. Transport of solid material between the reactors is effected by fluming. The pressure in the reactors is higher than atmospheric pressure. The oxygen membrane is configured for oxygenation and/or oxidation of the non-condensed gas. The gas from the outlet for gas of the fifth fluid bed reactor is transported to the gasfilter through the fourth moving bed reactor and/or the first fluid bed reactor. An INDEPENDENT CLAIM is included for a method for the thermal conversion of carbon based materials into combustible oil and/or gas.    DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a system for thermal conversion of carbon based materials into combustible oil and/or gas.    First fluid bed reactor (1)    Second vapor wash reactor (2)    Third reactor (3)    Fifth fluid bed reactor (5)    Sixth reactor (6)    Oxygen membrane. (10)