NOVELTY - Preparation (M1) of char involves: use of a waste product; separating at least some organic materials from inorganic materials in the waste product; shredding the separated organic materials; pyrolyzing the separated organic materials at a pyrolytic temperature of 450-600degreesF in a pyrolysis reactor (where the separated organic materials is reduced to a granular char product by in-situ heating and mixing caused by the pyrolysis reactor) to form liquid byproducts and gaseous byproducts, followed by use of liquid and gaseous byproducts.    USE - For the preparation of char, synthetic coal from solid waste; for converting organic waste materials to synthetic coal product or into a char product (all claimed)    ADVANTAGE - The method prepares a high quality char from organic waste materials. The method maximizes end product uniformity, weight and energy yield, while minimizes reaction temperature, energy input and processing time; uses a high capacity, continuous reactor to produce large quantities of synthetic coal consistent with the end use fuel market it is intended to serve; provides high quality synthetic coal of uniform composition from urban waste; efficiently pyrolyze organic waste materials to maximize the use of energy imparted to the reactor for pyrolysis; recovers byproduct energy from pyrolysis process, and returns it to the reactor for reuse introduces a pyrolysis system capable of continuous operation with high processing capacity, readily amenable to commercial scale large volume applications. The obtained synthetic has a high calorific value, low moisture content, low sulfur content and burning characteristics similar to naturally occurring high volatile bituminous coals. The method optimizes such that the extent of pyrolysis is adjustable by configuration of the mixing and conveying elements within the reactor, allowing for the optimization of yields between the desired synthetic coal and the remaining pyrolysis byproducts; uses urban waste, where the yield is set to approximately balance the energy content of the byproduct materials with the mechanical energy input needs of the reactor, including driver and other efficiency losses, minimizing the need for external fuel or other energy sources.    DETAILED DESCRIPTION - Preparation (M1) of char involves: use of a waste product (where the waste product includes at least some organic materials); separating at least some organic materials from inorganic materials in the waste product; shredding the separated organic materials; pyrolyzing the separated organic materials at a pyrolytic temperature in a pyrolysis reactor (where the pyrolytic temperature is 450 - 600degreesF and the separated organic materials being reduced to a granular char product by in-situ heating and mixing caused by the pyrolysis reactor) to form liquid byproducts and gaseous byproducts; and use of liquid byproducts and the gaseous byproducts of the sorted organic materials for production of mechanical work (where the mechanical work is used in pyrolyzing the separated organic material in the pyrolysis reactor).    INDEPENDENT CLAIMS are also included for the following:    (1) preparation (M2) of synthetic coal from solid waste involving: removing foreign materials from the solid waste (where the foreign materials selected from metals, glass, ceramics, and other inorganic materials); reducing particle size of the solid waste without the foreign materials; pyrolyzing the solid waste without the foreign materials in a pyrolysis reactor at a 450-600degreesF to produce a granulated synthetic coal (where the granulated synthetic coal has a moisture content of less than or equal to 3%), byproduct oils and byproduct gases; collecting and cooling the granulated synthetic coal; and use of the byproduct oils and the byproduct gases to produce mechanical energy (where the mechanical energy being imported into the pyrolysis reactor to accomplish in-situ heating of the waste product without the foreign materials);    (2) a system (S1) for converting organic waste material to a synthetic coal product (where the organic waste materials are selected from plastics, wood, biomass, textiles, pulp and paper, cardboard, leather, and rubber) comprises a reactor and a separator for sorting waste material suitable for pyrolysis from waste material not suitable for pyrolysis; a drive unit for converting energy generated from the byproduct oils and gases in the conversion process into mechanical work necessary to drive pyrolytic conversion in the reactor through in-situ heating; the reactor having an extruder; and boiler for using byproduct oils, gases, or vapor from the reactor to recover energy for recycling through the reaction process. The reactor uses several of co-rotating mixers to impart mechanical work to the sorted waste material is transported through it and include a drying zone. The sorted waste material is heated in the drying zone for moisture removal through a first reactor vent. The reactor has at least one pyrolytic zone. The pyrolytic zones is disposed downstream of the drying zone, pyrolysis occurring in the at least one pyrolytic zone. The pyrolysis enables the release of fluid through at least one reactor vent. The sorted waste material is compacted within the drying zone and the pyrolytic zone to form a mass of moving treated material filling the cross section of the reactor and functioning as a barrier to contain vapors within the drying and pyrolytic zones, several mixing mechanisms disposed within the drying and pyrolytic zones, several mixing mechanisms heating the mass of moving treated material while extending the residence time of mixing the mass of moving treated material. The reactor downstream of an oil vent has a combination of forwarding and reversing mixing elements to move the mass of moving treated material to a reactor discharge port; and    (3) a system (S2) for converting organic waste materials into a char product includes the reactor and the separator sorting waste material to be converted into the char product from waste material not to be converted; the drive unit; the reactor having an extruder (in which, the pyrolysis enables the release of fluid through at least one additional reactor vent and the sorted waste material is compacted within the drying zone and the pyrolytic zone to form a mass of moving treated material filling the cross section of the reactor and functioning as a barrier to contain vapors within the drying and pyrolytic zones, mixing mechanisms within the drying and pyrolytic zones, heating the mass of moving treated material while extending the residence time of mixing at least one vents for discharging oils from the pyrolytic zone) and the boiler.    .