Patent application number | Description | Published |
20090107046 | FUEL FEED SYSTEM FOR A GASIFIER AND METHOD OF GASIFICATION SYSTEM START-UP - A fuel feed system for use in a gasification system includes a feed preparation section, a pressurization and conveyance section, and a slag additive section. The feed preparation section is configured to grind the fuel to a predetermined size and to adjust the moisture content within the particulate fuel. The pressurization and conveyance section is coupled in flow communication with the feed preparation section, and includes at least one solids pump configured to receive a flow of the particulate fuel at a first pressure and discharge the particulate fuel at a second pressure. The slag additive section is configured to feed a slag additive mixture into the gasifier and to substantially control the total water content within the gasification system. | 04-30-2009 |
20090158664 | ROTARY APPARATUS FOR USE WITH A GASIFIER SYSTEM AND METHODS OF USING THE SAME - A method for transporting a solid particulate within a gasifier system is provided. The method includes discharging solid particulate through an inlet into an opening defined within a rotor, wherein the inlet and the solid particulate are at a first pressure. The method further includes rotating the rotor such that at least one end of the opening is aligned in flow communication with a duct at a second pressure that is different from the first pressure. The solid particulate is discharged from the rotor opening through an outlet such that the solid particulate is at the second pressure, and the rotor is rotated such that at least one end of the rotor opening is aligned in flow communication with a pressure source that is at approximately the first pressure, and such that the opening is at the first pressure. | 06-25-2009 |
20090178338 | FUEL FEED SYSTEM FOR A GASIFIER AND METHOD OF GASIFICATION SYSTEM START-UP - A method of startup for a gasification system includes assembling a fuel mixture for use by a gasifier at a fuel mixture assembly point, wherein the fuel mixture includes a quantity of particulate solid fuel and a quantity of non-ventable carrier gas. The method includes channeling the fuel mixture through a first conduit to a fuel mixture disassembly system including a non-ventable carrier gas removal apparatus, establishing a substantially steady flow of the fuel mixture within the first conduit, and redirecting the fuel mixture through a second conduit to the gasifier to facilitate gasifier startup. | 07-16-2009 |
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 |
20090272821 | METHODS AND SYSTEMS FOR MIXING REACTOR FEED - Methods and systems for a feed injector are provided. The feed injector system includes a plurality of annular channels that are substantially concentric about a longitudinal axis. The plurality of annular channels direct a flow of fluid substantially axially therethrough from a respective source to a reaction zone. The feed injector system also includes a swirl member extending into the fluid flow path defined in at least one of the plurality of annular channels wherein the swirl member is configured to impart a circumferential flow direction to fluid flowing through the at least one annular channel. | 11-05-2009 |
20090272822 | FEED INJECTOR SYSTEMS AND METHODS - A feed injector system comprises substantially concentric channels with one being configured for pneumatically conveying pulverized solid fuel feed from a respective source to a reaction zone and another configured to impart convey a fluid oxidizer stream with and without swirl. | 11-05-2009 |
20120017562 | HIGH PRESSURE CONVEYANCE GAS SELECTION AND METHOD OF PRODUCING THE GAS - A method is provided that includes removing carbon dioxide from untreated syngas received from a gasifier to produce a gas stream comprising carbon dioxide, modifying the gas stream by adding carbon monoxide, hydrogen, hydrogen sulfide, or any combination thereof, and providing the gas stream from an acid gas remover to a feed system for use as a conveyance gas to convey a feedstock into the gasifier. Systems implementing these and other methods are also provided. | 01-26-2012 |
20120036823 | METHODS AND SYSTEMS FOR MONITORING A SEAL ASSEMBLY - A method for monitoring functionality of a seal assembly within an injector feed assembly is described. The method includes providing a buffer fluid to the seal assembly, measuring at least one of a pressure and a flow rate of the buffer fluid, and determining a functionality of the seal assembly based at least partially on the at least one of a pressure and a flow rate of the buffer fluid. | 02-16-2012 |
20120037732 | ANNULAR INJECTOR ASSEMBLY AND METHODS OF ASSEMBLING THE SAME - An annular injector is described. The injector includes a first bayonet assembly and a second bayonet assembly each including a terminal end and a tip end. The second bayonet assembly is configured to be concentrically coupled at least partially about the first bayonet assembly. An outer diameter of the first bayonet assembly and an inner diameter of the second bayonet assembly vary at the tip end to define a first substantially annular nozzle. The first bayonet assembly includes a maximum outer diameter that is greater than a minimum inner diameter of the second bayonet assembly and at least a portion of at least one of the first bayonet assembly and the second bayonet assembly extends from the tip end to the terminal end. The injector includes a third bayonet assembly configured to be concentrically coupled at least partially about the second bayonet assembly to define a second substantially annular nozzle. | 02-16-2012 |
20130183204 | SYSTEM FOR DEAERATION IN A FLASH VESSEL - The disclosed embodiments relate to systems for deaerating a stream of slag sump water produced by a gasifier. For example, in one embodiment, a system includes a flash vessel having a first inlet configured to introduce a first fluid into the flash vessel, wherein the flash vessel is configured to flash the first fluid to produce a first flash gas, a second inlet configured to introduce a stream from slag sump into the flash vessel, wherein the stream from slag sump comprises a mixture of a gasification fine slag, dissolved oxygen (O | 07-18-2013 |
20140270993 | SOLIDS SUPPLY SYSTEM AND METHOD FOR SUPPLYING SOLIDS - A pressure control system is provided. The pressure control system includes a first pressure sensing device configured to obtain a first pressure measurement including at least one of a first differential pressure and a first pressure, the first pressure measurement obtained from at least one of within and downstream from a solids supply system, a second pressure sensing device configured to obtain a second pressure measurement including at least one of a second differential pressure and a second pressure within the solids supply system, and a pressure controller configured to use the first pressure measurement and the second pressure measurement to control a pressure within the solids supply system. | 09-18-2014 |