Abstract:
A method and s\ stem for sυpplying fuel are provided. The fuel supply system includes a supply of a flow of fuel wherein the fuel includes an amount of moisture in a first predetermined range, a supply of a flow of gas wherein the gas includes an amount of moisture in a second predetermined range and wherein the second predetermined range is less than the first predetermined range. The fuel supply system further includes a vessel configured to receive the flow of fuel and the flow of gas, mix the flow of fuel and the flow of gas, and separate the flow of fuel from the flow of gas wherein moisture is transferred from the flow of fuel to the flow of gas.
Abstract:
The present application provides an integrated gasification combined cycle system (230). The integrated gasification combined cycle system may include a gas turbine engine (110), a syngas system (115) for producing a syngas (190) for the gas turbine engine and having a compressor (210) therein, and a second gas engine (240) in communication with the syngas system. The second gas engine drives the compressor via the syngas. The integrated gasification combined cycle system (230) may further include a gasifier (170), an acid gas removal system (200) and an air separation unit (180).
Abstract:
A fuel slurry heating system includes a fuel slurry preparation system which comprises a fuel slurry vessel configured to hold the fuel slurry, a heat source and a controller configured to control the heat source to heat the fuel slurry to decrease a viscosity of the slurry below a threshold viscosity to make the slurry pumpable, and the fuel slurry is composed of a solid fuel and a liquid. And a corresponding method for using the heating system to heat a slurry to increase a solids concentration of the slurry while maintaining the viscosity of the slurry below a threshold viscosity is also disclosed.
Abstract:
A system includes an air separation unit configured to separate air into an oxygen rich stream and a nitrogen rich stream and a purity control system configured to receive input indicative of a target diluent level. The purity control system is configured to control the air separation unit to adjust an oxygen percentage and a nitrogen percentage of the oxygen rich stream based on the target diluent level.
Abstract:
A method for removing CO 2 from a pressurized gas stream with the effluent CO 2 remaining at system pressure or higher is disclosed. Specifically, the removal method provides near isothermal absorption of CO 2 from a gas stream in a suitable solvent at an elevated pressure and relatively low temperature. The solvent is then removed from contact with the gas stream, and the temperature is increased to such an extent that the CO 2 will flash from the solvent.
Abstract:
A continuous slag processing system includes a rotating parallel disc pump, coupled to a motor and a brake. The rotating parallel disc pump includes opposing discs coupled to a shaft, an outlet configured to continuously receive a fluid at a first pressure, and an inlet configured to continuously discharge the fluid at a second pressure less than the first pressure. The rotating parallel disc pump is configurable in a reverse-acting pump mode and a letdown turbine mode. The motor is configured to drive the opposing discs about the shaft and against a flow of the fluid to control a difference between the first pressure and the second pressure in the reverse- acting pump mode. The brake is configured to resist rotation of the opposing discs about the shaft to control the difference between the first pressure and the second pressure in the letdown turbine mode.