Method of removing and disposing of waste from a refinery ground tank including mixing at least one diluent with reduced-size solids to cause a flowable mixture
AssigneeThe Maitland Company
InventorRobert M. Rumph
Life of this patent
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Abstract
A method for disposing of solid refinery waste is disclosed. The method includes removing solid waste constituents from inside a refinery tank using excavating machinery, delumping the solid waste constituents, and conveying the delumped solid waste constituents into a mobile tank. The method further includes transporting the delumped solid waste constituents in the mobile tank to a burning facility, adding at least one diluent, mixing, and pumping from the mobile tank a flowable mixture of refinery waste and the at least one diluent at the burning facility.
Claims16
A method for removing waste from a refinery ground tank and disposing of the waste through burning, the method comprising:
- at a refinery, receiving in a mobile container a load of solid refinery waste removed from a ground tank, wherein after removal of the solids refinery waste from the ground tank, and before receipt in the mobile container, sizes of removed solids are reduced by at least one of chopping, cutting, mashing, fragmenting, squeezing, turning, and rolling;
- transporting the reduced size solids in the mobile container to a burning facility at which at least one diluent added to a head space between a top of the load of reduced-size solids and a top of the mobile container is mixed with the reduced-size solids to cause a flowable mixture of the at least one diluent and the reduced-size solids in the container;
- and
- evacuating the flowable mixture from the container for burning at the burning facility;
- wherein the container is a road-worthy vessel configured to transport liquids;
- and
- wherein the reduction of sizes of removed solids is accomplished using at least one blade associated with a hopper and a conveyor for conveying the reduced-size solid waste to the road-worthy vessel configured to transport liquids.
A method for removing waste from a refinery ground tank and disposing of the waste through burning, the method comprising;
- at a refinery, receiving in a mobile container a load of solid refinery waste removed from a ground tank, wherein after removal of the solids refinery waste from the ground tank, and before receipt in the mobile container, sizes of removed solids are reduced by at least one of chopping, cutting, mashing, fragmenting, squeezing, turning, and rolling;
- transporting the reduced size solids in the mobile container to a burning facility at which at least one diluent added to a head space between a top of the load of reduced-size solids and a top of the mobile container is mixed with the reduced-size solids using an agitator to cause a flowable mixture of the at least one diluent and the reduced-size solids in the container;
- evacuating the flowable mixture from the container for burning at the burning facility;
- and
- measuring a mixing resistance of the agitator and initiating evacuation of the flowable mixture only after a predetermined mixing resistance is achieved.
Dependencies are inferred from the claim text.