Patent application number | Description | Published |
20100251613 | METHOD AND APPARATUS TO RECYCLE TAIL GAS - A method of recycling a tail gas includes converting sulfur present in an acid gas stream into elemental sulfur to produce a tail gas and recycling the tail gas to at least one of a gasification reactor and a gas removal subsystem. | 10-07-2010 |
20100293918 | METHOD AND SYSTEM FOR USE WITH AN INTEGRATED GASIFICATION COMBINED CYCLE PLANT - A method of operating an integrated gasification combined cycle power generation system is provided. The method includes compressing air in an adiabatic air compressor to produce a compressed heated air stream, heating a nitrogen stream using the compressed heated air stream to produce a heated nitrogen stream and a cooled compressed air stream, and channeling the cooled compressed air stream to an air separation unit. | 11-25-2010 |
20100319254 | METHODS AND SYSTEM FOR SEPARATING CARBON DIOXIDE FROM SYNGAS - A system for use in separating carbon dioxide and acid gas from syngas includes a syngas purification circuit that includes at least one adsorption tower coupled in flow communication to a supply of lean solvent. The system further includes a carbon dioxide removal circuit coupled downstream from the syngas purification circuit. The carbon dioxide removal circuit includes at least one component that facilitates the removal of carbon dioxide from the solvent after the solvent has passed through the syngas purification circuit. The carbon dioxide removal circuit also includes at least one compressor, wherein the at least one component and the at least one compressor are operable at substantially similar pressures. In addition, the system includes an acid gas removal circuit that is coupled downstream from the carbon dioxide removal circuit. The acid gas removal circuit includes at least one adsorption tower. | 12-23-2010 |
20100324156 | METHODS OF RECYCLING CARBON DIOXIDE TO THE GASIFICATION SYSTEM - Method of producing syngas in an IGCC system, comprising compressing and heating carbon dioxide-rich gas to produce heated compressed carbon dioxide-rich gas, mixing the heated compressed carbon dioxide-rich gas with oxygen and feedstock to form a feedstock mixture, subjecting the feedstock mixture to gasification to produce syngas, cooling the syngas in a radiant syngas cooler, contacting syngas cooled in the radiant syngas cooler with compressed carbon dioxide-rich gas to further cool the syngas, and removing an amount of carbon dioxide-rich gas from the product mixture and compressing the removed carbon dioxide-rich gas prior to mixing with oxygen and feedstock. | 12-23-2010 |
20110162276 | METHOD AND APPARATUS TO TRANSPORT SOLIDS - A method of operating a gasification facility includes channeling a conveying fluid at a first temperature through at least one first steam heating device to increase the temperature of the conveying fluid to a second predetermined temperature. The method also includes channeling the conveying fluid at the second predetermined temperature through a second steam heating device to increase the temperature of the conveying fluid to a third predetermined temperature. The method further includes channeling the conveying fluid at the third predetermined temperature to a solids conveyance system. Solids become entrained within the conveying fluid. The method also includes transporting at least a portion of the solids to a gasification system. | 07-07-2011 |
20110162381 | SYSTEM AND METHOD FOR COOLING SYNGAS PRODUCED FROM A GASIFIER - A syngas cooler that includes an outer wall defining a cavity. A first membrane water wall is positioned within the cavity. A thermal siphon is positioned between the first membrane water wall and the outer wall and is configured to channel a flow of syngas therethrough to facilitate cooling the channeled syngas. | 07-07-2011 |
20110179712 | METHOD AND APPARATUS TO PREHEAT SLURRY - A method of operating a gasification facility includes channeling steam into a grinding mill via a flow control device and a conduit. The method also includes mixing carbonaceous fuel, preheated water, and steam within the grinding mill, to form a preheated coal slurry stream. | 07-28-2011 |
20110179801 | METHODS AND APPARATUS FOR DILUENT NITROGEN SATURATION - In one aspect, an embodiment of the present disclosure provides an Integrated Gasification Combined Cycle (IGCC) apparatus. The apparatus includes a saturator configured to saturate NPG with water vapor, and a heat recovery steam generator (HRSG), a low pressure steam loop through the saturator, wherein the HRSG is configured to heat the low pressure steam loop. The apparatus further includes a compressor and a heat exchanger configured to heat the NPG using waste process heat and extraction air from the compressor, wherein the heated NPG thereby becomes diluent nitrogen. | 07-28-2011 |
20120131853 | CARBON CAPTURE SYSTEMS AND METHODS WITH SELECTIVE SULFUR REMOVAL - Disclosed herein are systems and methods for treating carbon dioxide in an environmentally effective manner. Systems and methods include providing a carbon dioxide enriched stream having CO | 05-31-2012 |
20120267578 | METHODS OF RECYCLING CARBON DIOXIDE TO THE GASIFICATION SYSTEM - Method of producing syngas in an IGCC system, comprising compressing and heating carbon dioxide-rich gas to produce heated compressed carbon dioxide-rich gas, mixing the heated compressed carbon dioxide-rich gas with oxygen and feedstock to form a feedstock mixture, subjecting the feedstock mixture to gasification to produce syngas, cooling the syngas in a radiant syngas cooler, contacting syngas cooled in the radiant syngas cooler with compressed carbon dioxide-rich gas to further cool the syngas, and removing an amount of carbon dioxide-rich gas from the product mixture and compressing the removed carbon dioxide-rich gas prior to mixing with oxygen and feedstock. | 10-25-2012 |
20120324790 | METHOD AND APPARATUS TO TRANSPORT SOLIDS - A method of operating a gasification facility includes channeling a conveying fluid at a first temperature through at least one first steam heating device to increase the temperature of the conveying fluid to a second predetermined temperature. The method also includes channeling the conveying fluid at the second predetermined temperature through a second steam heating device to increase the temperature of the conveying fluid to a third predetermined temperature. The method further includes channeling the conveying fluid at the third predetermined temperature to a solids conveyance system. Solids become entrained within the conveying fluid. The method also includes transporting at least a portion of the solids to a gasification system. | 12-27-2012 |
20130192190 | METHOD AND SYSTEM FOR USE WITH AN INTEGRATED GASIFICATION COMBINED CYCLE PLANT - A method of operating an integrated gasification combined cycle power generation system is provided. The method includes compressing air in an adiabatic air compressor to produce a compressed heated air stream, heating a nitrogen stream using the compressed heated air stream to produce a heated nitrogen stream and a cooled compressed air stream, and channeling the cooled compressed air stream to an air separation unit. | 08-01-2013 |