Abstract: A system includes an air cooling system having a heat exchanger, a fan, and a mount. The heat exchanger includes an inlet, an outlet, and a heat exchange conduit between the inlet and the outlet. The inlet is configured to couple to a bleed system of a gas turbine system to extract a bleed flow. The heat exchanger is configured to cool the bleed flow along the heat exchange conduit in a surrounding air to produce a cooled bleed flow. The outlet is configured to couple to a fuel purge system of the gas turbine system to supply the cooled bleed flow as a fuel purge flow. The fan is configured to force an airflow from the surrounding air through the heat exchanger. The mount is configured to mount the air cooling system outside of an enclosure surrounding the gas turbine system.

Abstract: A system and medium for controlling a fuel gas compressor of a gas turbine system that compresses a gaseous fuel for consumption in a high-pressure combustor. Moreover, the compressor is configured to generate a discharge pressure for the combustor based at least in part on a load demand for the gas turbine system.

Abstract: A system and medium for controlling a fuel gas compressor of a gas turbine system that compresses a gaseous fuel for consumption in a high-pressure combustor. Moreover, the compressor is configured to generate a discharge pressure for the combustor based at least in part on a load demand for the gas turbine system.

Abstract: A system includes a first steam generator configured to generate a first boiler feedwater, a second steam generator configured to generate a second boiler feedwater, a common boiler feedwater configured to combine the first boiler feedwater and the second boiler feedwater to produce a common boiler feedwater, and a heater configured to receive the common boiler feedwater to heat a gas.

Abstract: Steam may be used to dry feedstock prior to delivery to a gasifier. A steam supply may be delivered to embodiments such as a feedstock dryer. Heat from the steam may then be transferred into the feedstock and used in drying the feedstock. Steam pressures may include pressures from 75 pounds per square inch up to and including 900 pounds per square inch.

Abstract: Present embodiments include systems for reducing moisture in a solid feed provided to a gasifier. For example, in an embodiment, a feedstock preparation system includes an aspirator having a first inlet for receiving a flow of steam, a second inlet for receiving a flow of a moist gaseous phase from a grinding mechanism configured to grind a solid fuel in the presence of a conveyance gas. The moist gaseous phase includes the conveyance gas and moisture removed from the ground solid fuel. The aspirator also includes an outlet configured to output a reduced pressure flow having the steam and the moist gaseous phase. The aspirator is configured to enhance moisture removal from the ground solid fuel to produce a dry feed of the ground solid fuel. The aspirator discharge is recycled within the process to heat the incoming dry conveyance gas and improve system efficiency.

Abstract: A method of reducing the concentration of at least one sulfur compound in a process stream and for recovering at least one sulfur compound from a process stream are provided. A process stream is delivered to a vessel, wherein the vessel comprises an adsorbent material. At least one solvent is transferred into the vessel. One or more fluids are then removed from the vessel. At least one of the fluids removed from the vessel comprises a clean gas. The adsorbent material may be regenerated to yield a high concentration of the at least one sulfur compound.

Abstract: The present embodiments are directed towards the cooling of a solvent of a gas treatment system using a fluid flow from an air separation unit. In one embodiment, a system is provided that includes an air separation unit. The air separation unit has an air inlet configured to receive an air flow, an oxygen outlet configured to output an oxygen flow, a nitrogen outlet configured to output a nitrogen flow and a cooling system configured to cool the air flow to enable separation of the air flow into the oxygen flow and the nitrogen flow, wherein the cooling system is configured to cool a first solvent of a first gas treatment system.

Abstract: A system includes a first steam generator configured to generate a first boiler feedwater, a second steam generator configured to generate a second boiler feedwater, a common boiler feedwater configured to combine the first boiler feedwater and the second boiler feedwater to produce a common boiler feedwater, and a heater configured to receive the common boiler feedwater to heat a gas.

Abstract: A method of reducing the concentration of at least one sulfur compound in a process stream and for recovering at least one sulfur compound from a process stream are provided. A process stream is delivered to a vessel, wherein the vessel comprises an adsorbent material. At least one solvent is transferred into the vessel. One or more fluids are then removed from the vessel. At least one of the fluids removed from the vessel comprises a clean gas. The adsorbent material may be regenerated to yield a high concentration of the at least one sulfur compound.

Abstract: Present embodiments include systems for reducing moisture in a solid feed provided to a gasifier. For example, in an embodiment, a feedstock preparation system includes an aspirator having a first inlet for receiving a flow of steam, a second inlet for receiving a flow of a moist gaseous phase from a grinding mechanism configured to grind a solid fuel in the presence of a conveyance gas. The moist gaseous phase includes the conveyance gas and moisture removed from the ground solid fuel. The aspirator also includes an outlet configured to output a reduced pressure flow having the steam and the moist gaseous phase. The aspirator is configured to enhance moisture removal from the ground solid fuel to produce a dry feed of the ground solid fuel. The aspirator discharge is recycled within the process to heat the incoming dry conveyance gas and improve system efficiency.

Abstract: According to various embodiments, a system includes a solid feed pump. The solid feed pump includes a housing, a rotor disposed in the housing, a curved passage disposed between the rotor and the housing, an inlet coupled to the curved passage, an outlet coupled to the curved passage, a solid feed guide extending across the curved passage, and a thermal control path through a portion of the solid feed pump.

Abstract: The present embodiments are directed towards the cooling of a solvent of a gas treatment system using a fluid flow from an air separation unit. In one embodiment, a system is provided that includes an air separation unit. The air separation unit has an air inlet configured to receive an air flow, an oxygen outlet configured to output an oxygen flow, a nitrogen outlet configured to output a nitrogen flow and a cooling system configured to cool the air flow to enable separation of the air flow into the oxygen flow and the nitrogen flow, wherein the cooling system is configured to cool a first solvent of a first gas treatment system.

Abstract: According to various embodiments, a system includes a solid feed pump. The solid feed pump includes a housing, a rotor disposed in the housing, a curved passage disposed between the rotor and the housing, an inlet coupled to the curved passage, an outlet coupled to the curved passage, a solid feed guide extending across the curved passage, and a thermal control path through a portion of the solid feed pump.

Abstract: A method for inspecting blade tip clearance between at least one rotor blade and a case spaced radially outward from the rotor blade is provided. The method includes inserting a probe into an aperture defined in the case and emitting electromagnetic energy into the case using the probe. The method also includes detecting electromagnetic energy reflected from a blade tip portion of the rotor blade and determining a blade tip clearance defined between the blade tip and the case based on the detected electromagnetic energy.

Abstract: Steam may be used to dry feedstock prior to delivery to a gasifier. A steam supply may be delivered to embodiments such as a feedstock dryer. Heat from the steam may then be transferred into the feedstock and used in drying the feedstock. Steam pressures may include pressures from 75 pounds per square inch up to and including 900 pounds per square inch.

Abstract: A method for inspecting blade tip clearance between at least one rotor blade and a case spaced radially outward from the rotor blade is provided. The method includes inserting a probe into an aperture defined in the case and emitting electromagnetic energy into the case using the probe. The method also includes detecting electromagnetic energy reflected from a blade tip portion of the rotor blade and determining a blade tip clearance defined between the blade tip and the case based on the detected electromagnetic energy.