NOVELTY - Controlled thermal conversion of carbonaceous feedstock, comprises: exposing feedstock to predetermined temperature and predetermined pressure for predetermined time in at least one chamber to produce gas product (40) and solid product (42), where gas product comprises e.g. methane or at least one noxious chemical, and solid product comprises carbon; sequestration enabling at least a portion of carbon by creating associated Lewis acid sites; sequestering noxious chemicals in chambers; and controlling constituents of gas product using feedback, thus providing predictable and stable gas product.    USE - The process is useful for: controlling thermal conversion of a carbonaceous feedstock; and forming a non-wetting carbon product (claimed), where the non-wetting carbon product is useful as a filler in waterproof materials including lumber.    ADVANTAGE - The process: allows to process wide range of feedstocks with improved thermal efficiency without costly modification or recalibration of the system; provides enhanced non-wetting carbon product; and provides efficient and environmentally-friendly conversion and use of organic waste and other organic materials.    DETAILED DESCRIPTION - Controlled thermal conversion of a carbonaceous feedstock, comprises: exposing the feedstock to at least one predetermined temperature and at least one predetermined pressure for at least one predetermined amount of time in at least one chamber to produce a gas product (40) and a solid product (42), where the gas product comprises at least one methane, carbon monoxide, hydrogen or at least one noxious chemical, and the solid product comprises carbon; sequestration enabling at least a portion of the carbon by creating associated Lewis acid sites; sequestering at least one of the noxious chemicals in the chambers using the sequestration enabled carbon; and controlling the constituents of the gas product using feedback, thus providing a predictable and stable gas product from an unknown and/or variable feedstock. An INDEPENDENT CLAIM is also included for a system for the controlled thermal conversion of a carbonaceous feedstock, comprising: a thermal conversion unit for exposing the feedstock to predetermined temperatures and predetermined pressures for predetermined amounts of time in the chambers, where the thermal conversion unit sequestration enables at least a portion of the carbon by creating associated Lewis acid sites, and the thermal conversion unit sequesters at least one of the noxious chemicals in the chambers using the sequestration enabled carbon; and a feedback loop for controlling the constituents of the gas product.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic diagram of high temperature pyrolysis unit.    Dust clarifier (16)    Sequestration agent injector (25)    Non-wetting agent (27)    Gas product (40)    Solid product (42)