The present invention provides a process for obtaining solid recovered fuel and synthesis gas from a waste-based feedstock, comprising the steps of: I. converting the feedstock into a solid recovered fuel by means of a number of parameters pertaining to waste sorting, selection, comminution and/or screening; II. gasifying under suitable reaction conditions at least a portion of the solid recovered fuel to produce synthesis gas and by-product(s); and III. optionally cleaning at least a portion of the synthesis gas to produce clean synthesis gas and wastewater, wherein one or more of the solid recovered fuel, synthesis gas, and by-product(s) of the gasification are analysed during operation of the process, and wherein data from said analysis is used to control one or more parameters of step I) in order to influence reaction conditions in step II, and optionally step III).

The present invention discloses a gasifier and/or a gasification process that provides a long, uniform temperature zone in the gasifier, regardless of the particle size, chemical composition, and moisture content of the fuel by sandwiching a reduction zones between two oxidation zones. The gasifier and/or gasification process has a char that is more energy-dense and almost devoid of moisture that affords for an additional (or char) oxidation zone with a temperature that is higher than a first oxidation zone which is closer to an evaporation and devolatilization zone. As such, the additional (or char) oxidation zone contributes to augmenting the reduction zone temperature, thereby providing a favorable dual impact in improving syngas composition and near-complete conversion of the tar.

An organic material gasification system is configured such that a carbonization furnace provided with a first air supply mechanism that radiates high-temperature combustion air and high-temperature steam to an organic material combustion region and with a second air supply mechanism that supplies combustion air to an exhaust gas combustion region, to discharge high-temperature exhaust gas is connected to a gasification furnace including a heating unit penetrating through a reactor. A carbide from the carbonization furnace is supplied to the reactor, and the high-temperature exhaust gas from the carbonization furnace is supplied to the heating unit, so that the carbonization efficiency and the carbonization quality are improved and the gasification efficiency is improved.

A system for processing solid waste including a segmented gasifier having a first segment detachably connected to a second segment, and a burner positioned downstream of the segmented gasifier and coupled to the segmented gasifier. A process for treating solid waste including introducing the solid waste into a first end of a segmented gasifier having a first segment detachably connected to a second segment. Gasifying the solid waste as it traverses from the first end of the gasifier to a second end of the segmented gasifier, and producing a gaseous output and a solid output at the second end of the segmented gasifier. Separating the gaseous output and the solid output, and introducing a portion of the gaseous output to a burner and recycling a portion of the gaseous output to the segmented gasifier as an energy source.

A reaction device is provided with a first wall that defines an interior in which a stirring mechanism is located. A heat exchanger is at least partly provided on the first outer wall surface facing away from the interior and/or on the stirring mechanism, wherein the heat exchanger has a grate structure, and at least two layers are provided which have a grate structure. Thus, it is possible to transfer heat in a precise and efficient manner primarily by means of thermal radiation in endothermic processes at different temperature levels, in particular pyrolysis, gassing, and reforming processes, and thereby use the exhaust heat for other processes.

Applying heat from a heat source to a first region to cause a first pyrolysis process, the first pyrolysis process resulting in a gaseous mixture, and applying heat from the heat source to a second region to cause a second pyrolysis process, the second pyrolysis process being applied to the gaseous mixture, wherein the second region is located closer to the heat source than the first region. Pyrolysis is used to destroy oils, tars and/or PAHs in carbonaceous material.

The present invention discloses a gasifier and/or a gasification process that provides a long, uniform temperature zone in the gasifier, regardless of the particle size, chemical composition, and moisture content of the fuel by sandwiching a reduction zones between two oxidation zones. The gasifier and/or gasification process has a char that is more energy-dense and almost devoid of moisture that affords for an additional (or char) oxidation zone with a temperature that is higher than a first oxidation zone which is closer to an evaporation and devolatilization zone. As such, the additional (or char) oxidation zone contributes to augmenting the reduction zone temperature, thereby providing a favorable dual impact in improving syngas composition and near-complete conversion of the tar.

The invention relates to a process and system for converting carbon material into power. Carbon material 12 is gasified into synthesis gas 18 in a gasifier 16, and steam 14 is supplied to the gasifier 16. The synthesis gas 18 is supplied to a gas turbine 30, 36, 38 to produce power. Air 24 is added to the synthesis gas 18 prior to the gas turbine 30, 36, 38. Exhaust gas 40 from the gas turbine 30, 36, 38 is cooled in a first cooling device 42 with water 46 to produce steam 52. The steam is used in at least one steam turbine to produce power 56 and the steam 58 from at least one steam turbine 56 is recycled to the gasifier 16.

A pyrolysis apparatus having a heating system adapted to heat a first gas enclosure, wherein a gas path within the heated enclosure is helical or spherical. Pyrolysis is used to destroy oils, tars and/or PAHs in a gaseous mixture.

Gasification method comprising the following steps of: a) bringing, in a main reactor, beads made of steel, an alloy, glass or ceramic, at a temperature between 600° C. and 1,000° C., into contact with a feedstock mixture comprising water and a biomass, the biomass comprising an organic part and salts, the main reactor being pressurised to more than 224 bar and at a temperature above 200° C. b) gasifying the organic part in the presence of the beads, thereby forming a gaseous phase, an aqueous phase and a solid residue, and whereby the salts precipitate on the beads, forming a salt shell covering the beads, c) separating the beads from the organic part, d) regenerating the beads.