TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The supercritical, critical or near critical fluid device comprises a source of carbon dioxide; and is in fluid communication with gas recycling device. The gas recycling device comprises a compressor. Preferred Method: The method further involves recycling the gas; and compressing the carbon dioxide.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Device: The second vessel gas discharge opening is in fluid communication with a gas recycling device for receiving the gas discharged in the second vessel and returning the gas to supercritical, critical or near critical conditions for re-entry into the conveying device. The supercritical, critical or near critical fluid source is in thermal communication with a thermal exchanger for heating or cooling the carbon dioxide to desired supercritical, critical or near critical conditions. The conveying device is at least one auger held in a conduit; and receives thermal energy from the thermal exchanger. The discharge device is in fluid communication with turbine for providing kinetic energy. The kinetic energy powers an electric generator.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The supercritical, critical or near critical fluid device comprises a source of entrainers and/or modifiers. The entrainer and/or modifier is ethanol.    TECHNOLOGY FOCUS - POLYMERS - Preferred Components: The second vessel for receiving the disrupted cellulosic biomass and performing at least one processing step comprises a digestion vessel in fluid communication with a fermentation vessel. The digestion vessel performs an enzymatic hydrolysis step on the disrupted cellulosic biomass to produce a digested biomass and cellulosic sugars. The fermentation vessel receives at least one of the cellulosic sugars or digested biomass to produce at least one of ethanol, bio-fuel, wood-based chemical and higher value material. The first vessel comprises at least two first vessels which are alternating in communication with the conveying device, to allow one first vessel to receive a cellulosic biomass while one first vessel is discharging cellulosic biomass to conveying device. EXAMPLE - No suitable example given.