Provided is a process for producing hydrogen gas in a separate stream from syngas. An assembly for producing hydrogen gas in a separate stream from syngas and a method of producing hydrogen are also provided.

A method of producing liquid fuel and/or chemicals from a carbonaceous material entails combusting a conditioned syngas in pulse combustion heat exchangers of a steam reformer to help convert carbonaceous material into first reactor product gas which includes carbon monoxide, hydrogen, carbon dioxide and other gases. A portion of the first reactor product gas is transferred to a hydrogen reformer into which additional conditioned syngas is added and a reaction carried out to produce an improved syngas. The improved syngas is then subject to one or more gas clean-up steps to form a new conditioned syngas. A portion of the new conditioned syngas is recycled to be used as the conditioned syngas in the pulse combustion heat exchangers and in the hydrocarbon reformer. A system for carrying out the method include, a steam reformer, a hydrocarbon reformer, first and second gas-cleanup systems, a synthesis system and an upgrading system.

A device for reacting an organic starting material to yield a gas that includes hydrogen has a feed device, a tubular furnace with an entry zone, an interior space, an axis of rotation and an exit side, and a water feed arranged by the feed device or entry zone and controllable as a function of the content of hydrogen in the gas mixture. The feed device feeds the starting material in the region of the entry zone into the interior space of the tubular furnace, from which a solid material and a gas mixture is discharged. The tubular furnace has a compensator for different thermal expansions of a first zone and a second zone. A gas-conducting system includes a gas monitor for the content of hydrogen in the gas mixture.

This invention relates to a power recovery process in waste steam/CO.sub.2 reformers in which a waste stream can be made to release energy without having to burn the waste or the syngas. This invention in some embodiments does not make use of fuel cells as a component but makes use of exothermic chemical reactors using syngas to produce heat, such as Fischer-Tropsch synthesis. It also relates to control or elimination of the emissions of greenhouse gases in the power recovery process of this invention with the goal of producing energy in the future carbonless world economy.

The present invention is directed to a unit and/or process for treating mill scale containing hydrocarbons, which improves emission levels and allows better control of the temperature during the heating stage. The unit and/or process comprises an indirect-fired rotary thermal reactor (2), a pre-treatment duct (18), a two-stage recovery unit wherein the first stage comprises an oil recovering assembly (4) and the second stage comprises an oil and water condensing unit (6), a coalescing oil filtration system (8) and a reactor combustion chamber (17) for recycled fuel.

A gasification system includes a scrubber in communication with a particulate removal subsystem and a quench sub-system.

A system and method of producing syngas is provided. The system includes a low tar gasification generator that receives at least a first and second feedstock stream, such as a solid waste stream. The first and second feedstock streams are mixed and gasified to produce a first gas stream. An operating parameter is measured and a ratio of the first and second feedstock streams is changed in response to the measurement.

A system for using carbonaceous material includes a steam reformer, a hydrocarbon reformer, and at least one gas-cleanup system. Also described are methods of producing liquid fuel and/or chemicals from carbonaceous material.