NOVELTY - A system comprises an improved rotary kiln for carrying out steam/carbon dioxide reforming, where the preferred features of waste volatilization, steam/carbon dioxide reforming, gas heat exchange, filtration and solid separation are combined into a single duplex kiln that uses in the primary region a heated hollow flight screw to begin the endothermic steam/carbon dioxide reforming of the biomass or waste feedstock.    USE - For carrying out steam/carbon dioxide reforming of the biomass or waste feedstock, for converting waste to energy (claimed).    ADVANTAGE - The system and process produces a large steam flow for turbine-generation of electricity, that replaces the need for a fuel cell; destroys the waste stream while at the same time the syngas is made to release energy without having to burn the waste or the syngas; use Fischer-Tropsch synthesis reactor system to produce a high carbon content compound, that is never burned in its life cycle and therefore serves as a carbon sequestering agent; the light gases from the Fischer-Tropsch unit are recycled back to the steam reformer for destruction and avoiding release to the environment.    DETAILED DESCRIPTION - A system comprises an improved rotary kiln for carrying out steam/carbon dioxide (CO2) reforming, where the preferred features of waste volatilization, steam/CO2 reforming, gas heat exchange, filtration and solid separation are combined into a single duplex kiln that uses in the primary region a heated hollow flight screw to begin the endothermic steam/CO2 reforming of the biomass or waste feedstock, where the off-gases are carried into a second region where inductively-heated annular surfaces radiatively heat the gases to 800-1050 degrees C (1470-1920 degrees F) and particulate is removed so that these hot gases can pass now counter-currently through the central shaft and then through the hollow flight screw internal cavities to supply the reforming heat needed to do the endothermic chemistry and cool the syngas for kiln exit. An INDEPENDENT CLAIM is included for a process of providing the interface between a steam/CO2 reforming waste conversion system generating syngas and a Fischer-Tropsch Unit that uses the syngas that makes paraffin wax product for carbon sequestration while recycling the light hydrocarbons off of the Fischer-Tropsch Unit, consisting of hydrogen, CO, CO2, methane, ethane and propane, to avoid their emissions as powerful greenhouse gases and also recycling the lighter hydrocarbons to help maintain a higher H2/CO ratio of the syngas; where the Fischer-Tropsch unit, which is exothermic, produces a large steam flow for turbine-generation of electricity and, thus, replaces the need for a fuel cell; and the process destroys the waste stream while at the same time the syngas is made to release energy without having to burn the waste or the syngas.