摘要:
A gasifier for the gasification of a fuel material includes a chamber in which the material is converted into a gas and a molten slag. A quenching apparatus is provided for cooling and solidifying the molten slag. A nozzle extends between the chamber and the quenching apparatus. The nozzle includes an orifice having an inlet end for receiving the molten slag from the chamber and an outlet end for discharging the molten slag into the quenching apparatus. A recessed zone is provided between the outlet end of the orifice and the quenching apparatus. The recessed zone may be formed within the nozzle. An electric induction heating coil provides heat in the recessed zone to prevent the solidification of the slag at the outlet end of the orifice.
摘要:
An ash fusion temperature reducing agent comprising a comminuted ore mixture of the silicates of iron, calcium, magnesium and aluminum is mixed with an ash containing pumpable liquid hydrocarbonaceous material to produce Mixture A. Mixture A is reacted with a free-oxygen containing gas in a partial oxidation gas generator. A hot raw effluent gas stream comprising H.sub.2 +CO along with molten ash having a reduced ash fusion temperature are produced at a lower temperature. Alternatively, Mixture A may be first introduced into a coking zone and converted into petroleum coke in which the ash fusion temperature reducing agent is dispersed throughout. The petroleum coke is then introduced into the partial oxidation gas generator where the hot raw effluent gas stream comprising H.sub.2 +CO is produced along with molten petroleum coke ash having a reduced ash fusion temperature. The molten ash is readily separated from the effluent gas stream and the gas generator may be operated at a lower temperature thereby extending the life of the refractory lined reaction zone.
摘要:
An apparatus is disclosed for the continuous non-oxidative thermal decomposition of heat-dissociable organic matter to a solid carbon residue, particularly activated carbon, and a mixture of gaseous products, without substantial coking or tar formation. The apparatus involve a cylindrical rotating drum in a substantially horizontal position, into which feed material is introduced at one end and products recovered at the other end. An axial temperature gradient, increasing in the direction of flow, is maintained within the drum, enabling the exercise of a high degree of control over the reaction to fully convert the feed into the desired products.
摘要:
The invention relates to a method in the gasification of sulphur-containing carbonaceous material using metal smelts. When gasifying such carbonaceous material in a metal smelt, the material is introduced to a gasifying reactor containing an iron and/or manganese smelt having a temperature of between 1100.degree. and 1600.degree. C., suitably 1150.degree.-1250.degree. C., the smelt being substantially saturated with respect to sulphur and carbon. The carbonaceous material is oxidized to carbon monoxide and the sulphur content forms a matte phase containing a high percentage of sulphur, which phase is tapped off. Residual non-combustible material is collected as a slag on the surface and is removed together therewith. If so desired, the matte can be granulated and roasted to recover the sulphur and metal contents. Carbonaceous material incorporating pyrolysible constituents is suitably pyrolysed in a pyrolysis medium at a temperature of between 450.degree.-800.degree. C. prior to the gasification reaction, the temperature during the pyrolysis process being maintained, by circulating the pyrolysis medium between pyrolysis and gasification and optional combustion of carbon monoxide gas formed.
摘要:
Carbonaceous material is gasified in a first pyrolysis zone substantially in an absence of free oxygen by heating with a solid heating media. The carbonaceous material is conducted through the first pyrolysis zone in turbulent flow to provide for the rapid transfer of heat to effect the gasification.Gaseous products are recovered while char products are introduced into a second pyrolysis zone for additional gasification. The second pyrolysis zone is maintained substantially free of free oxygen. Gasification in the second pyrolysis zone is effected by the transfer of heat from a heating media to the char products produced in the first pyrolysis zone.Gaseous products from the second pyrolysis zone are recovered.The char products from the second pyrolysis zone can be heated to a temperature sufficient for use as a solid heating media.The gaseous product from the first pyrolysis zone, after separation from the char product, can be cooled to a lower temperature to condense a liquid product therefrom.Liquid products produced can be recycled to the pyrolysis zones to produce additional gaseous products. The gaseous product from the second pyrolysis zone can be used as a conveying gas for the carbonaceous feed, char products, and recycle char.A portion of the char product and the gaseous product can be converted to methane for the production of pipeline gas.
摘要:
A system and process for the resultant gas constituent-controlled gasification of a carbonaceous feedstock uses feedback loop-controlled pyrolysis to produce a stable and predictable gas product from a variable or unknown feedstock, such as MSW, that may include methane, ethane, and other desirable hydrocarbon gases, and a solid product, that includes activated Carbon or Carbon.
摘要:
The invention relates to a installation (4) for recycling composite materials comprising a horizontal reactor (5) with a first zone (1), second zone (2) and third zone (3), which are leak-tight and independent, aligned with and separated from one another by means of gates that allow the passage of the composite material to be recycled only when the process has ended in a previous zone. The first zone (1) comprises a rotation mechanism (9) for rotating the material and gas outlet means (8). The second zone (2) comprises air injectors (10) and gas outlet means (11). The third zone (3) comprises cooling means.The invention also relates to a method for recycling composite materials comprising a first pyrolysis phase, a second gassing phase for gassing the material resulting from the first phase, and a third cooling phase for cooling the reinforcement material.
摘要:
Processes and systems are provided for converting a carbonaceous feedstock into a reaction gas and a syngas, involving a step of pyrolysing and methanating the feedstock in a pyrolysis chamber to produce the reaction gas and a step of gasifying unconverted feedstock in the presence of a reactant to produce a syngas.
摘要:
Ultra-clean char is used to generate hydrocarbons and/or electricity in a clean environmentally friendly process. The ultra-clean char is produced by pyrolizing organic matter, such as coal or various organic waste. The pyrolized organic matter may be combusted in the presence of oxygen to produce heat, which can be used to generate electricity in a conventional boiler/generator system. Further, pyrolized organic matter can be combusted in the presence of carbon dioxide and further processed to produce various hydrocarbons. In other embodiments, the ultra-clean char may be subjected to an extraction process for capturing valuable rare earth elements.
摘要:
An apparatus, a system, and a method for heat treating a moisture-containing or water-laden material are provided. The heat treatment can be drying for dehydration, gasification, or full carbonization. The system comprises a feeding mechanism, and a rapid compression (RCU)apparatus having a screw, a barrel, and one or more flow disrupters. The system can further include a reflux condenser, an aftercooler stage, a second condenser for particle filtering, and an exit mechanism. The one or more flow disrupters are located on an inner surface of the barrel and projects into the passageway created by the screw and the barrel. The screw is sized to fit within the barrel such that flow disrupter does not contact the screw. The one or more flow disrupters cause the water-laden material to fold over onto its self, thereby, allowing for the occurrence of more uniform drying.