Abstract:
A syngas cooler system includes a pressure vessel, a conduit, a plenum, a plenum, a conduit, and a bellows assembly. The pressure vessel includes a throat and a dome adjacent to the throat. The throat includes an area of excess heat, and the dome includes an area of deficient heat. The plenum extends between the throat and the bellows assembly. The bellows assembly is coupled at least partially within the dome. The conduit is coupled to the plenum for channeling a flow of purge fluid from external to the pressure vessel into the plenum such that purge fluid transfers heat from the area of excess heat into the area of deficient heat to facilitate reducing temperature differential stresses within the dome and the pressure vessel.
Abstract:
In a first embodiment, a system includes a first solids feeder having a first inlet and a first outlet, a second solids feeder having a second inlet and a second outlet, and an adjustable volume coupled to the first outlet and the second inlet. The first solids feeder is configured to supply a feedstock at a first feed rate and the second solids feeder is configured to supply the feedstock at a second feed rate. The adjustable volume is configured to adjust based at least in part on first feed rate and the second feed rate.
Abstract:
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.
Abstract:
In a first embodiment, a system includes a first solids feeder having a first inlet and a first outlet, a second solids feeder having a second inlet and a second outlet, and an adjustable volume coupled to the first outlet and the second inlet. The first solids feeder is configured to supply a feedstock at a first feed rate and the second solids feeder is configured to supply the feedstock at a second feed rate. The adjustable volume is configured to adjust based at least in part on first feed rate and the second feed rate.
Abstract:
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.
Abstract:
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.
Abstract:
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.