Abstract:
A slide valve having a valve disc that is slidably movable between a fully-retracted fully-open position and a fully-extended fully-closed tight shutoff position by an actuating stem. The actuating stem is flexibly coupled to the valve disc. The valve disc is selectively modulated between the fully-extended fully-closed tight shutoff position and a partially-retracted non-tight shutoff position to prevent sticking of the valve disc in the fully-extended fully-closed tight shutoff position.
Abstract:
A fluid catalytic cracking (FCC) unit for the production of hydrocarbon products includes a fluid injection system coupled to a reactor by a standpipe. The fluid injection system includes a plurality of nozzles for injecting oil feedstock into the standpipe to react with a catalyst flowing therethrough.
Abstract:
A fluid catalytic cracking (FCC) unit for the production of hydrocarbon products includes a fluid injection system coupled to a reactor by a standpipe. The fluid injection system includes a plurality of nozzles for injecting oil feedstock into the standpipe to react with a catalyst flowing therethrough.
Abstract:
A fluid catalytic cracking (FCC) unit for the production of hydrocarbon products includes a fluid injection system coupled to a reactor by a standpipe. The fluid injection system includes a plurality of nozzles for injecting oil feedstock into the standpipe to react with a catalyst flowing therethrough.
Abstract:
A slide valve having a valve disc that is slidably movable between a fully-retracted fully-open position and a fully-extended fully-closed tight shutoff position by an actuating stem. The actuating stem is flexibly coupled to the valve disc. The valve disc is selectively modulated between the fully-extended fully-closed tight shutoff position and a partially-retracted non-tight shutoff position to prevent sticking of the valve disc in the fully-extended fully-closed tight shutoff position.
Abstract:
FIG. 1 is a perspective view of a valve disc; FIG. 2 is a rear elevational view thereof; FIG. 3 is a front elevational view thereof; FIG. 4 is a right side elevational view thereof; FIG. 5 is left side elevational view thereof; FIG. 6 is a top view thereof; and, FIG. 7 is a bottom view thereof.