NOVELTY - A rotatable pressure vessel comprises a pressure vessel (101), a rotational drive mechanism (106, 108) and a support structure including a support frame (109), a plate (111) and a bearing assembly (113) that support the load of the vessel. The elongated pressure vessel has an enclosed volume of 30-90 m3 capable of maintaining an internal pressure of 10-4200 kPa, a relative humidity of 100% relative humidity and a temperature of 20-200degreesC.    USE - Used for processing solid waste to produce a solid fuel product and recycling stream; useful for treating waste materials of many different types including municipal waste, industrial waste, military and governmental waste streams.    ADVANTAGE - The support structure has a bearing, which supports the thrust load of the vessel and axial load of the vessel in its various operating orientations. The bearing assembly provides reduced friction rotational action between the bearing on the vessel and the surface of the support structure and plate. The support structure maintains the pressure vessel in a useful position throughout its axis of rotation and through its angle of orientation. The vessel can rotate to -8 to 8 rpm as the vessel is supported by the frame and bearing that support the load of the vessel and permits the vessel to rotate freely at varying rpm's depending on the process step and conditions of the process. The rotatable pressure vessel is capable of maintaining the pressure vessel at high internal pressure, at a high internal temperature and at relative humidity. The rotatable pressure vessel can process waste streams to remove many contaminating components by the action of heat and humidity. The vessel can be operated either in the raised or horizontal position to treat the waste. The bearing has an extended life, is easy to maintain and requires minimum attention during use.    DETAILED DESCRIPTION - The bearing supports the pressure vessel in an axial and a thrust load orientation. The bearing has a diameter of 2.5-3.5 m and comprises steel.    DESCRIPTION OF DRAWING(S) - The figure shows an isometric view of the pressure vessel.    pressure vessel (101)    rotational drive mechanism (106, 108)    support frame (109)    plate (111)    bearing assembly (113)