Patent application number | Description | Published |
20090173484 | METHODS AND SYSTEMS FOR CONTROLLING TEMPERATURE IN A VESSEL - Methods and systems for a vessel preheating system are provided. The system includes a pressure vessel including an area of excess heat and an area of deficient heat, a plenum defined between the area of excess heat and the area of deficient heat, and a conduit configured to couple a flow of purge fluid from external to the vessel into the plenum wherein heat from the area of excess heat is transferred to the flow of purge fluid in the plenum and the heat is carried by the flow of purge fluid into the area of deficient heat such that the flow of purge fluid purges the area of deficient heat. | 07-09-2009 |
20090199474 | APPARATUS FOR COOLING AND SCRUBBING A FLOW OF SYNGAS AND METHOD OF ASSEMBLING - A method of assembling a spray quench apparatus is provided. The method includes coupling a first end of an exit tube to a quench chamber such that the exit tube end is in flow communication with the quench chamber, coupling at least one spray nozzle to an opposite second end of the exit tube such that water emitted from the spray nozzle fills the exit tube and forms a film of water across an inner surface of the exit tube, coupling a water source to the quench chamber for providing a substantially continuous water film along an inner surface of the quench chamber, and coupling at least one discharge apparatus to the quench chamber for providing water spray into the quench chamber, wherein the water of the water film and water sprays drains into a water sump. | 08-13-2009 |
20090202403 | METHOD AND APPARATUS FOR COOLING SYNGAS WITHIN A GASIFIER SYSTEM - A method of assembling a synthesis gas (syngas) cooler for a gasification system includes positioning a dip tube within a shell of the syngas cooler. The dip tube is configured to quench the syngas flowing through the shell and/or at least partially channel the syngas through the dip tube. The method also includes coupling an isolation tube to the dip tube such that the isolation tube is substantially concentrically aligned with, and radially outward of, the dip tube. The isolation tube is coupled in flow communication with a purge gas source and is configured to at least partially form a dynamic pressure seal. The method further includes coupling at least one of the isolation tube and the dip tube in fluid communication with a fluid retention chamber. The method also include at least partially filling the fluid retention chamber with fluid, thereby further forming the dynamic pressure seal. | 08-13-2009 |
20100101203 | FEED INJECTOR COOLING JACKET - A feed injector for providing feed to a gasifier of an integrated gasification combined cycle system includes: a base leading to a body and terminating in a tip, the tip including an exitway for injecting feed into the gasifier; the tip including a mating of an inner shell disposed within a core insert, with an outer shell in which the core insert is disposed; a plurality of spacers disposed between the core insert and inner shell thus providing an inner annular space, and another plurality of spacers disposed between the core insert and outer shell thus providing an outer annular space; the inner annular space and the outer annular space being in fluid communication at the tip and providing for a flow of coolant from the base to the tip and back to the base. A method of fabrication and an integrated gasification combined cycle power plant are also disclosed. | 04-29-2010 |
20100288474 | METHOD AND SYSTEM FOR SEALING AN ANNULUS - A method and systems for a purged seal for an annular space are provided. The purged seal includes a first baffle element that extends from an inner surface of the annular space into the annular space at an oblique angle and a second baffle element that extends from an outer surface of the annular space above the first baffle element in a direction opposite gravity flow into the annular space wherein the second baffle element extends at an oblique angle. The system also includes a third baffle element that extends from the inner surface above the first baffle element in a direction of gravity flow into the annular space wherein the third baffle element extends into the annular space at an oblique angle with respect to the inner surface and wherein a distal end of the third baffle element is positioned proximate a distal end of the second baffle element. | 11-18-2010 |
20100313442 | METHOD OF USING SYNGAS COOLING TO HEAT DRYING GAS FOR A DRY FEED SYSTEM - A method for improving the overall thermal efficiency of a coal power generation plant by transferring heat from a raw synthesis gas stream to solid fuel used as the primary feed to the gasifier, comprising the steps of initially cooling the syngas exhaust by transferring heat to a makeup conveyance gas feed to the dry feed preparation system, feeding a solid fuel component and a portion of the makeup gas stream into a grinding mechanism for the solid feedstock, forming a two-phase solids/gas stream comprising ground feedstock particulates and makeup gas, heating and drying the ground solid feedstock particulates to remove water, separating and removing water vapor formed in the heating and drying step, and feeding the heated and dried solids/gas stream to the gasifier. | 12-16-2010 |
20100325954 | QUENCH CHAMBER ASSEMBLY FOR A GASIFIER - A gasifier includes a combustion chamber in which a combustible fuel is burned to produce a syngas and a particulated solid residue. A quench chamber having a liquid coolant is disposed downstream of the combustion chamber. A dip tube is disposed coupling the combustion chamber to the quench chamber. The syngas is directed from the combustion chamber to the quench chamber via the dip tube to contact the liquid coolant and produce a cooled syngas. A draft tube is disposed surrounding the dip tube such that an annular passage is formed between the draft tube and the dip tube. An asymmetric or symmetric baffle is disposed proximate to an exit path of the quench chamber. The cooled syngas is directed through the annular passage and impacted against the asymmetric or symmetric baffle so as to remove entrained liquid content from the cooled syngas before the cooled syngas is directed through the exit path. | 12-30-2010 |
20100325956 | COOLING CHAMBER ASSEMBLY FOR A GASIFIER - A gasifier includes a combustion chamber in which a combustible fuel is burned to produce a syngas and a particulated solid residue. A cooling chamber having a liquid coolant is disposed downstream of the combustion chamber. A dip tube is disposed coupling the combustion chamber to the cooling chamber. The syngas is directed from the combustion chamber to the cooling chamber via the dip tube to contact the liquid coolant and produce a cooled syngas. An asymmetric or symmetric liquid separator is disposed proximate to an exit path of the cooling chamber and configured to remove entrained liquid content from the cooled syngas directed through the annular passage to the exit path. | 12-30-2010 |
20100325957 | GASIFICATION SYSTEM FLOW DAMPING - In one embodiment, a gasification system component, such as a quench unit or scrubber may retain of pool of a cooling fluid for cooling another fluid. The gasification system component includes a flow damping mechanism designed to dampen flow of the cooling fluid, the other fluid, or both, within the gasification system component. The flow damping mechanism may be disposed in an inner chamber formed between a dip tube and a draft tube or disposed in an outer chamber formed between the walls of the gasification system component and the draft tube. The flow damping mechanism also may be disposed between the inner chamber and the outer chamber. | 12-30-2010 |
20110120010 | GASIFICATION QUENCH CHAMBER AND SCRUBBER ASSEMBLY - A gasification quench chamber is disclosed. The gasification quench chamber includes a reservoir that contains liquid coolant in its lower portion and an exit for the cooled syngas in its upper portion; a dip tube that is configured to introduce a syngas mixture to contact the liquid coolant which produces the cooled syngas; a cooling device configured to further cool the cooled syngas in its upper portion; and a stability device in the lower portion that is configured to mitigate coolant level fluctuation and sloshing. In an embodiment of the quench chamber, the cooling device includes a heat exchanger pipe. A quench chamber and scrubber assembly is also disclosed. | 05-26-2011 |
20110162277 | SYSTEMS AND METHOD FOR HEATING AND DRYING SOLID FEEDSTOCK IN A GASIFICATION SYSTEM - A system for heating and drying a quantity of coal feedstock being channeled to a gasifier includes a first heat exchanger coupled in flow communication with the gasifier for transferring heat from an input stream to an output stream of heat transfer fluid, and a second heat exchanger positioned downstream from the first heat exchanger for receiving the output stream of heat transfer fluid from the first heat exchanger, said second heat exchanger transfers heat from the output stream of heat transfer fluid to a stream of heating gas. | 07-07-2011 |
20120102835 | SYSTEM AND METHOD FOR PROTECTING GASIFIER QUENCH RING - A system includes a gasifier, which includes a reaction chamber configured to convert a feedstock into a synthetic gas, a quench chamber configured to cool the synthetic gas, a quench ring configured to provide a water flow to the quench chamber, and a quench ring protection system configured to protect the quench ring from the synthetic gas or a molten slag. The quench ring protection system includes a protective barrier disposed within an inner circumferential surface of the quench ring. The protective barrier substantially overlaps the inner circumferential surface in an axial direction along an axis of the quench ring. | 05-03-2012 |
20120111009 | SYSTEM FOR COOLING SYNGAS - A system includes a syngas cooler configured to cool a syngas. The syngas cooler includes a first syngas cooler section configured to cool the syngas and a second syngas cooler section configured to cool the syngas and generate a first superheated steam with an enthalpy of less than approximately 3800 kJ/kg. | 05-10-2012 |
20120131852 | MOISTURE REMOVAL FOR GASIFICATION QUENCH CHAMBER ASSEMBLY - A gasification assembly that includes a quench chamber and downstream transfer piping is disclosed. The gasification assembly includes the quench chamber and a liquid coolant disposed therein, and a dip tube that is configured to couple a combustion chamber to the quench chamber and also configured to direct syngas from the combustion chamber to the liquid coolant and produce a cooled syngas. The assembly further includes a transfer pipe that is in fluid communication with the cooled syngas and configured to transfer the cooled syngas to a downstream scrubber component. The transfer pipe further includes an excess moisture removal device, which is configured to remove moisture from the cooled syngas. | 05-31-2012 |
20120181355 | SYSTEM FOR FLOW CONTROL IN FUEL INJECTORS - A system includes a gasification fuel injector. The gasification fuel injector includes a body having a tip portion, a first conduit extending through the body toward the tip portion, a second conduit extending through the body toward the tip portion, and a flow control device disposed in the first conduit upstream of the tip portion. The flow control device is configured to limit a first flow through the first conduit. | 07-19-2012 |
20120219409 | PUMP USED IN GASIFICATION SYSTEM - A pump used in a gasification system, the pump comprises a housing having an inlet and an outlet, a rotor supported within the housing for rotation relative to the housing, the rotor comprising a hub, a plurality of disks spaced apart by sections of the hub, and defining a plurality of transport channels for transporting solid carbonaceous feedstocks for the gasification system, and an interior feedstock facing surface adjacent to the solid carbonaceous feedstocks, wherein at least a portion of the interior feedstock facing surface is coated with a coating. | 08-30-2012 |
20130000270 | SYSTEM AND METHOD FOR COOLING GASIFICATION REACTOR - An exemplary gasification reactor is disclosed including a vessel defined with a reaction chamber for receiving a carbon-containing fuel and an oxygen-containing gas under a partial combustion and producing a synthesis gas. A first cooling device and a second cooling device are provided to cool the vessel. The first cooling device is attached to a first upper region of the vessel. The second cooling device is attached to the second middle region of the vessel. A method and IGCC power generation system is also disclosed. | 01-03-2013 |
20130011307 | QUENCH CHAMBER ASSEMBLY FOR A GASIFIER - A gasifier includes a combustion chamber in which a fuel is burned to produce a syngas and a particulated solid residue. A quench chamber having a liquid coolant is disposed downstream of the combustion chamber. A dip tube couples the combustion chamber to the quench chamber. The syngas is directed from the combustion chamber to the quench chamber via the dip tube to contact the liquid coolant and produce a cooled syngas. A draft tube surrounds the dip tube such that an annular passage is formed between the draft tube and the dip tube. An asymmetric or symmetric faceted baffle is disposed proximate to an exit path of the quench chamber. The cooled syngas is directed through the annular passage and impacted against the baffle so as to remove entrained liquid content from the cooled syngas before the cooled syngas is directed through the exit path. | 01-10-2013 |
20130011308 | QUENCH CHAMBER ASSEMBLY FOR A GASIFIER - A gasifier includes a combustion chamber in which a fuel is burned to produce a syngas and a particulated solid residue. A quench chamber is disposed downstream of the combustion chamber. A dip tube is disposed coupling the combustion chamber to the quench chamber. The syngas is directed to contact liquid coolant in the quench chamber and produce a cooled syngas. A draft tube is disposed surrounding the dip tube such that an annular passage is formed. A baffle is disposed proximate to an exit path of the quench chamber. The cooled syngas is directed through the annular passage and impacted against the baffle so as to remove entrained liquid content from the cooled syngas before it is directed through the exit path. A cross sectional area of the annular passage is smaller towards the bottom of the quench chamber and larger towards the top of the quench chamber. | 01-10-2013 |
20130334463 | CAPTURE AND STORAGE OF EMISSIONS FROM A GASIFIER - A system includes a capture system, a storage system, and a return system. The capture system is configured to receive an outlet gas from a gasification system and to extract a component gas of the outlet gas using a regenerable material during a start-up operation of the gasification system. The storage system is coupled to the capture system and is configured to store the component gas extracted by the capture system. The return system is configured to return the component gas from the storage system to the gasification system during a normal operation of the gasification system. | 12-19-2013 |
20140246175 | METHODS AND SYSTEMS FOR CONTROLLING TEMPERATURE IN A VESSEL - A system for preheating a pressure vessel includes a throat including an area of excess heat and a dome having an area of deficient heat. The throat includes a conduit extending from a pressure vessel opening to the pressure vessel interior. A plenum is defined between the throat and a seal within the dome. The throat extends from the dome toward a dome floor. The floor is substantially perpendicular to the throat. A conduit is coupled to the plenum and channels a flow of purge fluid into the plenum wherein heat from the throat is transferred to the flow of purge fluid and carried by the flow of purge fluid into the area of deficient heat via a gap defined between the seal and the floor such that the flow of purge fluid reduces temperature differential stresses within the pressure vessel and purges the area of deficient heat. | 09-04-2014 |