NOVELTY - The pyrolysis and gasification system comprises a feedstock hopper (102) that receives a carbonaceous feedstock, a tapered pyrolysis drum (114) that rotates about an axis by an electric motor connected to a chain and sprocket and drives off carbon based volatiles contained in the carbonaceous feedstock, a first counter-operating pressure valve (104), a second counter-operating pressure valve (110), an airlock vessel (106) disposed between the first and second counter-operating pressure valves, and an accumulation chamber (112) located after the second counter-operating pressure valve.    USE - The pyrolysis and gasification system is useful for production of syngas containing hydrogen, carbon monoxide, carbon dioxide and/or other carbon based volatile gases such as methane from non-comestible biomass and/or other carbon based or carbonaceous materials such as coal, peat coke and municipal solid waste.    ADVANTAGE - The pyrolysis and gasification system ensures efficient production of syngas with high quality and output and reduced moisture content and without any unwanted waste.    DETAILED DESCRIPTION - The pyrolysis and gasification system comprises a feedstock hopper (102) that receives a carbonaceous feedstock, a tapered pyrolysis drum (114) that rotates about an axis by an electric motor connected to a chain and sprocket and drives off carbon based volatiles contained in the carbonaceous feedstock, a first counter-operating pressure valve (104), a second counter-operating pressure valve (110), an airlock vessel (106) disposed between the first and second counter-operating pressure valves, an accumulation chamber (112) located after the second counter-operating pressure valve, a cooling jacket that surrounds a pipe connecting the second counter-operating pressure valve and the accumulation chamber, and a selective particulate entrapment component unit. The pyrolysis and gasification system increases heat transfer to the carbonaceous feedstock through use of internal flights within the tapered pyrolysis drum. The first and second counter-operating pressure valves maintain a pressure of 250 psi within the pyrolysis and gasification system. The airlock vessel holds a charge of feedstock received from the feedstock hopper, and draws in a vacuum that evacuates oxygen introduced into the airlock vessel when feedstock is introduced into the airlock vessel. The vacuum is drawn through a venturi on steam generated or cooling water loops. The accumulation chamber includes a plunger/auger that advances a charge of feedstock into the tapered pyrolysis drum. The cooling jacket utilizes cooling water passed through the cooling jacket to dissipate heat or prevent the second counter-operating pressure valve from overheating. The tapered pyrolysis drum is connected to the accumulation chamber via a mechanical seal, includes a neck that protrudes beyond a refractory lined enclosure and rests on a load bearing roller, is enclosed within the refractory line enclosure, conveys carbonaceous feedstock from an input end to a discharge end of the tapered pyrolysis drum via internal flights, and is constructed to ensure that no shelf is created when a diameter of the tapered pyrolysis drum constricts back to an exit gas pipe size. Superheated steam is introduced into the accumulation chamber via a port in the accumulation chamber, and is heated to 1750 degrees F. A cam follower bearing is located outside the refractory lined enclosure, is disposed perpendicular to the load bearing roller, and restricts movement or direct linear growth of the tapered pyrolysis drum in one direction. The refractory lined enclosure includes a burner that provides thermal energy to the pyrolysis and gasification system, is fabricated of mild steel to maintain pressure of 14.5 psi, creating a partial pressure over pressure environment within the tapered pyrolysis drum, and is manufactured to operate at atmospheric pressure. The partial pressure over pressure environment within the tapered pyrolysis drum is established by: a compressor or a fan employed to buildup pressure; siphoning off exhaust gas from the refractory lined enclosure; and directing the exhaust gas to a gas turbine to create shaft horsepower. The shaft horsepower is utilized to spin a device that compresses ambient air or combustion air. The compressed ambient air or combustion air is fed back to the refractory lined enclosure to build up or sustain the partial pressure over pressure environment established in the tapered pyrolysis drum. Heat vented from the refractory line enclosure is employed for steam generation or power production. A mechanical seal is utilized between the tapered pyrolysis drum and stationary portions of the pyrolysis and gasification system, and operates to maintain a working pressure within the tapered pyrolysis drum. Fully pyrolyzed or partially pyrolyzed carbonaceous feedstock exits from a discharge end of the tapered pyrolysis drum at a temperature of 1450-1700 degrees F. The discharge end includes a neck that rests on a load bearing roller. The neck is connected to a stationary piece of the gasification and pyrolysis system through a mechanical seal located external to a refractory lined vessel, and is rotatable around an axis on the load bearing roller. Product gas exits from the tapered pyrolysis drum into a steam reformer. The partially pyrolyzed carbonaceous feedstock transitions via an auger to a secondary solids reactor that is employed to complete conversion of the partially pyrolyzed carbonaceous feedstock into syngas. The selective particulate entrapment component employs a venturi placed between the tapered pyrolysis drum and a secondary solids reactor. The venturi captures particles below a specified micro size in an entrained flow of gas and steam entering a reforming reactor.    DESCRIPTION OF DRAWING(S) - The figure shows a block diagram of a pyrolysis and gasification system.    Feedstock hopper (102)    First counter-operating valve (104)    Airlock vessel (106)    Second counter-operating valve (110)    Accumulation chamber (112)    Tapered pyrolysis drum. (114)